PLEASE HELP
2/3x-1/5>1 x=?​

Answer:

area of square - area of circle

s² - pie r²

3² - 3.14 x1 x1

9 - 3.14 cm²

your answer is 5.86cm²

this is area of shaded region

nearest hundered is 6cm²

plz brainlist me bro I need it plz

her answer is wrong brainlist me

Answer:

The area of the shaded region is

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the rectangle minus the area of the circle

The rectangle is a square

So.... Plz check rest in the pic!

Hope it helped u if yes mark me BRAINLIEST!

Tysm!

Answer: It would be 0 170 discounted books.

Step-by-step explanation: Doing the calculations the only way they would be able to do this would be if there was no discount at all.

The number of discounted books that the store sells to make a total of $5440 is 120. Hence, option C is correct.

"Sale is a period during which a shop or dealer sells goods at reduced prices."

"Discount is known as deducted amount from the usual cost of some object."

Regular price of a book = $32

Total number of books = 200

Total amount after books got sold = $5440

Discount during sale = 25%

Let number of books sold at regular price = x

Let number of books sold at discounted price = y

Price of book after discount = 32 - (25% of 32) = 32 - 8 = 24

According to question

x + y = 200 ---------------- (1)

32x + 24y = 5440 ------------ (2)

From (1) x = 200 - y substitute in (2)

32 (200 - y) + 24y = 5440

6400 - 32y + 24y = 5440

6400 - 8y = 5440

8y = 960

y = 120

Hence, option C - 120 discounted books is the correct answer.

To learn more about discount here

https://brainly.com/question/2736271

#SPJ2

Answer:

68°

Step-by-step explanation:

since the angle given is a complementary angle, we know that the sum of it must equal 180°

let the unknown angle below j be x so,

\(25+43+x=180\\x=180-25-43\\x=112\)

now since the angle on the left of j is equal to x we can say

\(x+j=180\\j=180-x\\j=180-112\\j=68\)

Answer: About 99.74% of births would be expected to occur within 24 days of the mean pregnancy length.

Step-by-step explanation:

Complete question is attached below.

Given: The lengths of pregnancy terms for a particular species of mammal are nearly normally distributed about a mean pregnancy length with a standard deviation of 8 days.

i.e. \(\sigma= 8\)

let X denotes the random variable that represents the lengths of pregnancy.

The probability of births would be expected to occur within 24 days of the mean pregnancy​ length:

\(P(\mu-24<X<\mu+24)=P(\dfrac{\mu-24-\mu}{8}<\dfrac{X-\mu}{\sigma}<\dfrac{\mu+24-\mu}{8})\\\\=P(\dfrac{-24}{8}<Z<\dfrac{24}{8})\ \ \ [\because Z=\dfrac{X-\mu}{\sigma}]\\\\=P(-3<Z<3)\\\\=P(Z<3)-P(Z<-3)\\\\=P(Z<3)-(1-P(Z<3))\\\\=2P(Z<3)-1\)

\(= 2(0.9987)-1\ \ \ [\text{ By z-table}]\\\\=0.9974\)

=99.74%

Hence, about 99.74% of births would be expected to occur within 24 days of the mean pregnancy length.

Random sampling is widely used in research and surveying since it is considered to be a highly efficient technique for gathering data from a large population within a reasonable time frame.

A sample is a portion of the population is drawn in such a way that every member of the population and important sub-categories of the population have an equal chance of being selected for the survey, yielding a sample that is demographically similar to population. This is known as random sampling. Random sampling is a method for selecting a subset of individuals from a population. It entails using chance mechanisms to choose a sample of people from a population. In the context of sampling, demographically similar refers to samples that are drawn in such a way that they represent the same proportions of individuals based on demographic criteria (e.g., gender, age, income, etc.) as the population from which they were taken. Random sampling is widely used in research and surveying since it is considered to be a highly efficient technique for gathering data from a large population within a reasonable time frame.

To know more about Random sampling visit:

https://brainly.com/question/30759604

#SPJ11

The camper should take 3 units of food, 1 first-aid kit, and 1 piece of clothing within the given constraints.

To determine the optimal number of each item the camper should take, we need to maximize the total benefit while considering the capacity constraint of the backpack.

Let's assume the camper takes x units of food, y first-aid kits, and z pieces of clothing.

The backpack has a capacity of 9 ft^3, and each unit of food takes up 2 ft^3. Therefore, the constraint for food is 2x ≤ 9, which simplifies to x ≤ 4.5. Since x must be a whole number and the camper needs at least one unit of food, the camper can take a maximum of 3 units of food.

Similarly, for first-aid kits, since each kit occupies 1 ft^3 and the camper must take at least one, the constraint is y ≥ 1.

For clothing, each piece takes 3 ft^3, and the constraint is z ≤ (9 - 2x - y)/3.

Now, we need to maximize the total benefit. The benefit of food is assigned as 7, first aid as 5, and clothing as 6. The objective function is 7x + 5y + 6z.

Considering all the constraints, the possible combinations are:

- (x, y, z) = (3, 1, 0) with a total benefit of 7(3) + 5(1) + 6(0) = 26.

- (x, y, z) = (3, 1, 1) with a total benefit of 7(3) + 5(1) + 6(1) = 32.

- (x, y, z) = (4, 1, 0) with a total benefit of 7(4) + 5(1) + 6(0) = 39.

- (x, y, z) = (4, 1, 1) with a total benefit of 7(4) + 5(1) + 6(1) = 45.

Among these combinations, the highest total benefit is achieved when the camper takes 3 units of food, 1 first-aid kit, and 1 piece of clothing.

Therefore, the camper should take 3 units of food, 1 first-aid kit, and 1 piece of clothing to maximize the total benefit within the given constraints.

Learn more about objective function here:

brainly.com/question/33272856

#SPJ11

Answer:

not sure

Step-by-step explanation:

not sure sqauredxfree bagdes

=answer

The expressions that are equivalent to -6z + (-5.5) + 3.5z + 7y - 1.5 are: -2.5z + 5y - 7

-6z + (-5.5) + 3.5z + 7y - 1.5 can be simplified as follows:

= -6z + (-5.5) + 3.5z + 7y - 1.5

=  (-6z + 3.5z) + (-5.5 + 7y - 1.5)

=  (-2.5z) + (5y - 7)

Therefore, the expressions that are equivalent to -6z + (-5.5) + 3.5z + 7y - 1.5 are: -2.5z + 5y - 7

To know more about expression, visit:

https://brainly.com/question/28170201

The expression -6z + (-5.5) + 3.5z + 7y - 1.5 is equivalent to -2.5z + 7y - 7.

Consider the given data,

We are required to find the equivalent expressions of the given expression, -6z+(-5.5)+3.5z+7y-1.5.

Now, we can combine like terms as follows: -6z + 3.5z + 7y - 5.5 - 1.5

On combining like terms, we get: -2.5z + 7y - 7

Thus, the equivalent expressions of the given expression, -6z+(-5.5)+3.5z+7y-1.5, are -2.5z+7y-7.

To simplify the expression -6z + (-5.5) + 3.5z + 7y - 1.5, we can combine like terms:

-6z + (-5.5) + 3.5z + 7y - 1.5

= (-6z + 3.5z) + (-5.5 + 7y - 1.5)

= -2.5z + (7y - 7)

So, the expression -6z + (-5.5) + 3.5z + 7y - 1.5 is equivalent to -2.5z + 7y - 7.

To know more about like terms, visit:

https://brainly.com/question/29169167

#SPJ11

Answer: 0.95 or 95/100 or 19/20

Step-by-step explanation: Hi there.

To find the fraction, we can subtract 0.05 (number of baseball cards) from 1.00 (all of his cards).

1.00-0.05=0.95

0.95 in fraction form is 95/100, or 19/20 simplified.

Have a nice day! :)

Answer:

Part A: 7.8

Part B: Square Root Of 62

Step-by-step explanation:

Part A: 7.8 is a rational number because it can be expressed as a fraction or 78/10.

Part B: The square root of 62 is irrational because it cannot be expressed as a fraction.

Please mark me Brainliest!

Answer:

Part A: 7.8. It equals 78/10.

Part B: √61. It is about 7.8102

Step-by-step explanation:

Part A:

Yes, you are correct. I'm going to expand on your answer, however.

So, recall what rational numbers are. They are any number that cannot be written as a fraction between two integers. Another way of saying this is that if the number doesn't repeat and doesn't terminate, then it's irrational.

So, yes, 7.8 is a rational number between 7.7 and 7.9.

In fact, there are infinite rational numbers between 7.7 and 7.9. 7.8 is rational. So is 7.88. And 7.888. And 7.8888. Their fractions are, respectively: 78/10, 788/100, 7888/1000, and 78888/10000. They can all be written as a fraction (between two integers), and so, they are rational.

Part B:

So, unlike rational numbers, irrational numbers do not terminate and they do not repeat. An example is √2. Its approximation is 1.41424...  This doesn't repeat nor terminate.

To find an irrational number between 7.7 and 7.9, the strategy is to square the two numbers. 7.7^2 is 59.29 and 7.9^2 is 62.41. Now, we just need to find a number within this range that when you take the square root of it, it is irrational.

After thinking, 61 is a valid candidate. The square root of 61 is 7.81024... It doesn't repeat and doesn't terminate. It is irrational.

In fact, the square root of any prime number is irrational.

And 7.81024... is between 7.7 and 7.9. Therefore, an answer we could give is √61.

And it's approximately 7.8102.

(credits to xKelvin, original editor)

hope this helps :)

Answer: yes,no,no,no

Step-by-step explanation:

34+12=46. Yes

34+7=41.  No

34+10=40.  No

34+4=38.  No

Answer:

12= yes

7= no

10= yes

4= no

Step-by-step explanation:

34 + 12= 46 is greater than 42

34 + 7= 41 is less that 42

34 + 10= 44 is greater than 42

34 + 4= 38 is less than 42

The given statement, "We can use the normal distribution to approximate the sampling distribution of the average (\(\bar X\)) for a small sample (n<30) even if our sample has clear outliers." is false.

Several random samples of a predetermined size are taken from the same population to generate a sampling distribution, which is a sort of probability distribution. You can better understand how a sample statistic fluctuates from sample to sample by using these distributions.

The given statement is false because when the sample size is small (n < 30) and the data have clear outliers, the normal distribution may not be a suitable approximation for the sampling distribution of the average (\(\bar X\)). In such cases, the presence of outliers can significantly affect the distribution, causing it to deviate from a normal distribution.

For small samples with outliers, it is generally recommended to use alternative methods or non-parametric tests that do not assume a specific distribution. These methods take into account the non-normal nature of the data and provide more robust and reliable results.

Learn more about sample distribution on:

https://brainly.com/question/15201212

#SPJ4

Answer:

Table B

Table C

Table A

Step-by-step explanation:

Substitute by the easiest number which is 0

f(0) =2(0) - (-3) =3 Then it is Table B function

f(0) = -2(0) +(-1/3)= -1/3 Then it is Table C function

f(0) =2(0) +(2/3)=2/3 Then it is Table A function

To find the magnitude of the potential difference between the origin and the point on the x-axis at x = +84 cm, we need to calculate the electric field in each region of space and then integrate it to find the potential difference.

Let's break down the problem into three regions:

Region 1: From x = -∞ to x = -57 cm (left plate)

Region 2: From x = -57 cm to x = +57 cm (region between the plates)

Region 3: From x = +57 cm to x = +84 cm (right plate)

For each region, we'll calculate the electric field using Gauss's law for planar symmetry:

1. Region 1 (left plate):

The electric field due to a uniformly charged infinite plane is given by E = σ / (2ε₀), where σ is the surface charge density and ε₀ is the permittivity of free space.

Here, σ = -40 nC/m² (negative because it is directed towards the left).

Using ε₀ = 8.854 x 10^-12 C²/(N⋅m²), we have:

E₁ = (-40 x 10^-9 C/m²) / (2 x 8.854 x 10^-12 C²/(N⋅m²))

2. Region 2 (region between the plates):

In this region, there are charges on both plates contributing to the electric field.

Let E₂₁ be the electric field due to the left plate, and E₂₂ be the electric field due to the right plate.

E₂₁ = E₁ (the electric field is the same as in Region 1)

E₂₂ = σ / (2ε₀)

Here, σ = +21 nC/m² (positive because it is directed towards the right).

3. Region 3 (right plate):

E₃ = E₂₂ (the electric field is the same as in Region 2, due to the right plate)

Now, we integrate the electric field over each region to find the potential difference:

ΔV = ∫ E dx

1. Region 1:

∫ E₁ dx = E₁ ∫ dx (from -∞ to -57 cm)

        = E₁ * (-57 cm - (-∞))

2. Region 2:

∫ E dx = ∫ (E₂₁ + E₂₂) dx = ∫ E₂₁ dx + ∫ E₂₂ dx (from -57 cm to +57 cm)

3. Region 3:

∫ E dx = E₃ ∫ dx (from +57 cm to +84 cm)

        = E₃ * (+84 cm - +57 cm)

By evaluating theintegrals, we can find the potential difference between the origin and the point on the x-axis at x = +84 cm.

Learn more about Gauss Law here: brainly.com/question/14773637

#SPJ11

Answer:

(f+g)(x)=x²+2x-6

Step-by-step explanation:

(f+g)(x)=2x+1+x²-7

collect like terms

(f+g)(x)=x²+2x+1-7

according to mathematics x² is not a like term of 2x so don't add the them

(f+g)(x)= x²+2x-6

The code efficiently identifies prime numbers using the ancient Greek algorithm. It initializes an array, marks the multiples of each prime number as non-prime, and then prints the prime numbers.

This algorithm demonstrates a straightforward and efficient method for finding prime numbers within a given range.The ancient Greek algorithm for finding prime numbers less than or equal to a given number is implemented in the provided Python code. The algorithm follows a simple approach of marking numbers as prime or non-prime.

It starts by assuming all numbers as prime and then proceeds to mark the multiples of each prime number as non-prime. The code initializes an array where each element represents a number and marks them all as prime initially. Then, it iterates over each number from 2 to the given number, checking if it is marked as prime. If it is, the algorithm crosses out all its multiples as non-prime. Finally, it prints the numbers that remain marked as prime.

Learn more about prime here: https://brainly.com/question/9315685

#SPJ11

A non-zero vector that is perpendicular to both v and ū is 4i + 6j - 11k. The non zero vector is always known by cross vectors.

A non-zero vector that is perpendicular to both v and ū can be found by taking the cross product of the two vectors. The cross product of two vectors is a vector that is perpendicular to both of the original vectors.

The cross product of v and ū is given by:
\(v × ū = |i   j   k|              |1 -3 2|              |-4 1 -2|\)
\(v × ū = ( (-3)(-2) - (2)(1) )i - ( (1)(-2) - (2)(-4) )j + ( (1)(1) - (-3)(-4) )kv × ū = (6 - 2)i - (-2 + 8)j + (1 - 12)kv × ū = 4i + 6j - 11k\)

Therefore, a non-zero vector that is perpendicular to both v and ū is 4i + 6j - 11k.

Know more about vector  here:

https://brainly.com/question/13322477

#SPJ11

Each cross-section perpendicular to the x-axis is an equilateral triangle. The volume of the solid is\((sqrt(3)/36) × s^3.\)

To find the volume of a solid whose each cross-section perpendicular to the x-axis is an equilateral triangle, we need to use calculus. Let us denote the area of an equilateral triangle with side length s as A(s).

Hence, the volume of the solid will be∫baf(x)dx, where f(x) is the function that gives the area of the cross-sectional triangle whose base is the x-axis and b and a are the limits of the interval over which we want to find the volume.

As each cross-section is an equilateral triangle, the area of the triangle whose base is the x-axis will be

\(A(f(x)) = (\sqrt{(3)/4)} \times(f(x))^2.\)

We have to find the limits of the interval for which we need to find the volume. As we are finding the volume of a solid, we know that the interval will be in the x-direction. Hence, we need to find the limits of the interval of the x-axis. We can see that the cross-sectional triangles are equilateral triangles.

Hence, they will be similar, and we can set up a proportion to find the value of x for which the triangle has side length s. We know that the height of an equilateral triangle with side length s is \((sqrt(3)/2) × s.\) As the cross-sectional triangles are perpendicular to the x-axis, their height will be equal to the value of x.

Hence, we can set up a proportion to find the value of x. We know that:

\((sqrt(3)/2) × s = x. => s = (2/sqrt(3)) × x.\)

Hence, the limits of the interval will be x = 0 and \(x = (sqrt(3)/2) × s. => x = 0\)and \(x = s/(2 × sqrt(3)).\)

Now, let us find the volume. We know that \(f(x) = (sqrt(3)/4) × x^2.\)

Hence, the volume will be: \(V = ∫(s/(2 × sqrt(3))0(sqrt(3)/4) × x^2dx => V = (sqrt(3)/36) × s^3\)

for such more question on volume

https://brainly.com/question/463363

#SPJ11

To convert the volume of an object from cubic meters to cubic centimeters, we need to multiply the given volume by the conversion factor of 1,000,000 (100 cm)^3. Therefore, the volume of the object is 9,600,000 cubic centimeters (cm^3) .

The conversion factor between cubic meters and cubic centimeters is 1 meter = 100 centimeters. Since volume is a measure of three-dimensional space, we need to consider the conversion factor in all three dimensions.

Given that the object has a volume of 9.6 m^3, we can convert it to cubic centimeters by multiplying it by the conversion factor.

9.6 m^3 * (100 cm)^3 = 9.6 * 1,000,000 cm^3 = 9,600,000 cm^3.

Therefore, the volume of the object is 9,600,000 cubic centimeters (cm^3) when converted from 9.6 cubic meters (m^3). The multiplication by 1,000,000 arises from the fact that each meter is equal to 100 centimeters in length, and since volume is a product of three lengths, we raise the conversion factor to the power of 3.

Learn more about three-dimensional space here:

https://brainly.com/question/16328656

#SPJ11

Step-by-step explanation:

they are the same because FIGH just the ENLARGEMENT of ABCD

Answer:

Expected value is -3

You should not play

Step-by-step explanation:

five are red, five are green, 10 yellow

P(red) = red/total = 5/20 = 1/4

P(green) = green/total = 5/20 = 1/4

P(yellow) = yellow/total =10/20 = 1/2

Expected value = 1/4(18) + 1/4(10) + 1/2(0) - 10 to play

                             =18/4 + 10/4 - 10

                            =28/4 -10

                             =7-10

                             = -3

You should not play

The statements which must be true from the given statements are :

Base angles of Quadrilateral Z are congruent.

Opposite angles of quadrilateral C are congruent.

Opposite angles of quadrilateral L are congruent.

Consecutive angles of quadrilateral Z are congruent.

Consecutive angles of quadrilateral L are congruent.

Opposite angles of quadrilateral C are supplementary.

Opposite angles of quadrilateral T are supplementary.

Given are,

Quadrilateral C has 4 congruent sides.

So this must be a square and thus all angles are equal which is equal to 90°.

Opposite angles are thus congruent.

Opposite angles of a quadrilateral is always supplementary.

Quadrilateral L has two pairs of parallel sides and congruent diagonals.

So it must be a rectangle or a square.

So, opposite angles are congruent, each equal to 90 degrees.

Also, consecutive angles are equal, since each angle equal to 90°.

Quadrilateral T has at least one pair of parallel sides that are also congruent.

If at least one pair of parallel sides are congruent, then the other pair of sides are also parallel and congruent.

S it can be rectangle, square, parallelogram or rhombus.

If it is parallelogram or rhombus, base angles will not be equal.

Opposite angles are supplementary.

Quadrilateral Z has exactly one pair of parallel sides that are not congruent. The other pair of sides are congruent.

This must be an isosceles trapezium.

Base angles of an isosceles trapezium are equal and thus congruent.

So consecutive angles are congruent.

Learn more about Congruence here :

https://brainly.com/question/29039487

#SPJ1

Answer:

See below.

Step-by-step explanation:

Adding 2 to both sides will not help solve the equation.

Adding 2 to both sides gives you this:

x^3 = ∛(x-2)

x^3 + 2 =∛(x-2) + 2

What was the original question?

The statement which most likely represent "dependent-samples" is (d) study which compares standardized "test-scores" before and after course is taken.

The scores obtained before and after are linked, as they are obtained from the same group of individuals, and are therefore dependent samples.

For example, suppose a group of students is given a standardized test before and after taking a preparation course.

The scores obtained before the course are likely to be related to the scores obtained after the course, as they are both measures of the same group of students.

If the course has a significant impact on the scores, the before-and-after scores will likely be correlated, and the samples will be dependent.

Therefore, the correct option is (d).

Learn more about Samples here

https://brainly.com/question/15711678

#SPJ4

The given question is incomplete, the complete question is

Which of the following are most likely to be dependent samples?

(a) A study that compares the mean wait times at two different hospital emergency rooms

(b) A study that compares the salaries earned by men and women in the same job position

(c) A study that compares the weight gain for puppies who eat two different brands of food

(d) A study that compares standardized test scores before and after a course is taken.

Answer:

Hey there!

Rhianna has 1/2 of a box of pencils left after using some at school.

The bottom two boxes would be 3÷3=1.

Let me know if this helps :)

Answer:

Step-by-step explanation:

There are 6 spaces and three are shaded

= \(6\div 3 = 2\\\)

Answer:

-(negative )

Step-by-step explanation:

This is because you have to Multiply the contents of one bracket with the other. Since one has a negative sign and the other had a positive sign, the result will be

- x + = -

Answer: The sign of the product is negative because a positive multiplied by a negative is a negative.

Step-by-step explanation:

hope it helped xx

Answer:

68.9

Step-by-step explanation:

     Let's take the formula: (C*9/5)+32=F

     Now let's substitute C for 20.5:

(20*9/5)+32=F

36.9+32=F

68.9=F

     So, 20.5 centigrade/celsuis is 68 temperature in fahrenheit.

The probability that Beth does yoga knowing that she walked is 0.50. The probability that Beth walks knowing that she did yoga is 0.27. The events "Beth does yoga" and "Beth walks" are dependent events.

To calculate the probability that Beth does yoga knowing that she walked, we use the formula for conditional probability. The probability of Beth doing yoga given that she walked is equal to the probability of both events occurring (Beth does both) divided by the probability of the given event (Beth walks). In this case, the probability of Beth doing yoga and walking is 0.20, and the probability of Beth walking is 0.40. Therefore, the probability that Beth does yoga knowing that she walked is 0.20/0.40 = 0.50.

Similarly, to calculate the probability that Beth walks knowing that she did yoga, we use the formula for conditional probability. The probability of Beth walking given that she did yoga is equal to the probability of both events occurring (Beth does both) divided by the probability of the given event (Beth does yoga). In this case, the probability of Beth doing yoga and walking is 0.20, and the probability of Beth doing yoga is 0.75. Therefore, the probability that Beth walks knowing that she did yoga is 0.20/0.75 ≈ 0.27.

Since the conditional probabilities are not equal to the individual probabilities of each event, we can conclude that the events "Beth does yoga" and "Beth walks" are dependent events. The occurrence of one event affects the probability of the other event, indicating a dependence between the two activities.

Learn more about probability here: brainly.com/question/13604758

#SPJ11

The greatest common factor (GCF) of the terms in the polynomial \(8x^4 - 4x^3 -18x^2\) is \(2x^2.\)

To find the greatest common factor (GCF) of the terms in the polynomial \(8x^4 - 4x^3 - 18x^2\), we need to identify the largest expression that divides evenly into each term.

Let's break down each term individually:

\(8x^4\) can be factored as 2 × 2 × 2 × x × x × x × x

\(-4x^3\) can be factored as -1 × 2 × 2 × x × x × x

\(-18x^2\) can be factored as -1 × 2 × 3 × 3 × x × x

Now, let's look for the common factors among these terms:

The common factors for all the terms are 2 and \(x^2\).

Therefore, the greatest common factor (GCF) of the terms in the polynomial \(8x^4 - 4x^3 -18x^2\) is \(2x^2.\)

for such more question on polynomial

https://brainly.com/question/7297047

#SPJ8