Pls help me! I’ll help u if u do!!

Answer:

She should order 15 cakes.

Step-by-step explanation:

175/12=14.58

We can't have part of a cake, so round to 15, so we have extra!

Answer:

15

Step-by-step explanation:

14.58 actually but if you round(which is better) it's 15

Answer:

4-i

Step-by-step explanation:

Answer:

4 - i

Step-by-step explanation:

took the quiz

The number of empty seats based on the arithmetic sequence in 6 minutes is 28.

It should be noted that an expression simply means the function that's given to show the relationship between the variables.

From the information, the movie theatre currently has 49 empty seats. 3 people enter every minute to fill those seats. The scenario is modeled by the arithmetic sequence:

= 46 − 3m.

In this case m = number or minutes.

The empty seats in 6 minutes will be:

= 46 - 3m

= 46 - 3(6)

= 46 - 18

= 28

There are 28 empty seats.

The complete question is written below.

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A movie theatre currently has 49 empty seats. 3 people enter every minute to fill those seats. The scenario is modeled by the arithmetic sequence

= 46 − 3m. Find the numberof empty seats in 6 minutes.

Answer:

The distance between the two points is 3 units

Step-by-step explanation:

5-2=3

The distance between  (5, -6) and (2, -6) is 3 units.

Distance Formula to find distance between two points (a, b) and (c, d)  is D = √(c-a)² + ( d- b)²

The distance formula to find the distance of a point P(a, b) from the origin O(0,0) is D = √((a² + b²).

Given:

(5, -6) and (2, -6)

now, if there are two points (a, b) and (c, d) then the distance is

d= √(c-a)² + ( d- b)²

Then, d= √(2-5)² + (-6+ 6)²

d= √ 9+ 0

d= 3

Hence, the distance between two points is 3 units.

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Answer: 28.58

Step-by-step explanation: you find 7x4 which is 28 and then 28 + 0.58 and that gives you 28.58

Step-by-step explanation:

so, we need to find the x values (A) that create the defined result values (f(x)) of B.

so, when taking the lower interval limit of B as the first f(x), we get

-1 = (x-2)/3

-3 = x - 2

-1 = x

so, the lower interval limit for A is also -1.

-1 as input value for the function delivers also -1 as functional result.

now for the upper limit :

2 = (x-2)/3

6 = x - 2

8 = x

so, the upper interval limit for A is 8.

and since the limit is excluded for B, it is also excluded for A.

so, C) is the correct answer.

Answer:

6 hours

Step-by-step explanation:

\(\frac{1}{6}\) of Total battery life = \(\frac{1}{6} * 3600 = 600\)milliamps

Assuming the battery takes 100 Milliamps per hour,

Time = Battery Capacity / Current hours

Time = 600 / 100 Mah = 6H

The total number of samples will be 1109 .

Given ,

Margin of error 0.02

Here,

According to the formula,

\(Z_{\alpha /2} \sqrt{pq/n}\)

Here,

p = proportions of scientist that are left handed

p = 0.09

n = number of sample to be taken

Substitute the values,

\(Z_{0.01} \sqrt{0.09 * 0.91/n} = 0.02\\ 2.33 \sqrt{0.09 * 0.91/n} = 0.02\\\\\\\)

n ≈1109

Thus the number of samples to be taken will be approximately 1109 .

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Answer:

5.6

Step-by-step explanation:

4 ÷ 5/7

is 4 divide 5 over 7

which is 5.6

Since the HW system requires 3 significant figures for 1% accuracy, the number 0.00102 with three significant figures satisfies the requirement.

In the number 0.001, there are two significant figures: "1" and "2".

The zeros before the "1" are not considered significant because they act as placeholders.

Therefore, the significant figures in 0.001 are "1" and "2".

In the number 0.00102, there are three significant figures: "1", "0", and "2".

All three digits are considered significant because they convey meaningful information about the value.

Therefore, the significant figures in 0.00102 are "1", "0", and "2".

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The missing angles in degrees are-

In the given figure;

∠g = 29°, as ∠g and ∠29° are vertically opposite to each other. Both will be equal.

Similarly,

∠k = 61°, as ∠k and ∠61° re vertically opposite to each other. Both will be equal.

From the linear pair;

∠h + ∠g = 180

∠h = 180 - 29

∠h = 151°

Similarly,

∠m + ∠k = 180

∠m = 180 - 61

∠h = 119°

Thus, the missing values of the angles are found.

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The value of the part of side of triangle given as x is equal to 11/3 in simplified fraction.

What is fraction?

A fraction is referred to as the part of something a whole in maths. For instance, if a pizza is cut into four equal pieces, each one is represented by a quarter (¼). Fractions can make calculations faster and easier through making it easier to distribute and judge different numbers. The depiction of fractions appears easier than when decimal values are used.

As given in the question, in the given triangle DE is parallel to AC,

It implies that the ration of the sides are equal.

i.e. AD/DB = CE/EB

Putting the value from the figure given in the question,

we get,

11/x = 9/3

11/x = 3

x = 11/3

Therefore, The value of the x is 11/3 in the form of simplified fraction.

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The dimensions of the poster with the smallest area is (\(12\sqrt{389} +24\)) units width and (\(\sqrt{389} /6+4\)) units height.

It is a measurement of a point or line extended in one direction, according to the notion of dimension. Each shape we see has a few dimensions.

The statement indicating the powers to which the fundamental units are to be increased in order to obtain one unit of a derived quantity is known as the dimensional formula of any quantity. The formulation for any physical quantity Q's dimensional formula is given by,

Dimensional Formula: Q = \(M^{a}L^{b}T^{c}\)

The area of printable area is wh.

wh = 778

Due to margins on both sides, the poster is w + 2*12 wide and h + 2*2 tall.

We want to reduce the poster's size =

(w+ 2 * 12)(h + 2 * 2) or (w + 24)(h + 4)

Wh = 778, thus we can replace it with h = 778/w.

Then, A = (w + 24)(778/w + 4)is the poster's size, which we aim to reduce.

(w + 24)(778/w + 4) = 778 + 4w + 18672/w + 96 =

4w + 874 + 18672/w

We minimize this by calculating

the formula dA/dw = 4 - 18672/w2 and setting it to 0

\(4-18672/w^{2} =0\)

\(4w^{2} =18672\)

\(w^{2} =18672/4\)

\(w=\sqrt{4668}=12\sqrt{389}\)

\(h=778/(12\sqrt{389} )=\sqrt{389} /6\\\)

Keep in mind that the margins' ratio matches that of h and w.

In due to the fact that the problem requests the poster's width and height,

Width = \(12\sqrt{389} +24\)

Height = \(\sqrt{389} /6+4\)

Thus, the width is (\(12\sqrt{389} +24\)) units and the height is (\(\sqrt{389} /6+4\)) units.

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Answer:

It is systematic sampling.

Answer:

75.398 cm to the nearest thousandth.

Step-by-step explanation:

Circumference = π * diemeter

= 24π

= 75.3982 cm

Answer:

answer is AA criteria

hope it helps.

Answer:

aa

Step-by-step explanation:

its aa because the tringle degree on top is 50 degrese  for both

Answer:

1/3

Step-by-step explanation:

there are 3 ways to draw a black sock. because there are 9 socks in all you put the sock you drew first back the chance is 3/9 or 1/3

Answer: 65

Step-by-step explanation:

First we need to know what the 13 is 20% of. 13 is 20% of 65.

To make sure we are correct we must take 20% of the 65 which gives us 13 showing that 20% of the 65 skittles (13) are red.

Hope that helped :)

The statement that x = 0 is the only solution to ax = 0 if and only if the rank of the p × q matrix a equals q, the number of unknowns, can be proven as follows:

First, assume that x = 0 is the only solution to ax = 0. This means that there are no nonzero solutions to the equation, implying that the null space of the matrix a is trivial (only containing the zero vector). By the rank-nullity theorem, the nullity of a matrix is equal to the dimension of its null space. Since the null space of a is trivial, its nullity is zero.

Next, consider the rank of the matrix a. By the rank-nullity theorem, the rank of a plus its nullity is equal to the number of columns in a, which is q. Therefore, if the nullity is zero, the rank of a must be equal to q.

Conversely, if the rank of the matrix a equals q, it implies that the nullity of a is zero. This means that the only solution to the equation ax = 0 is the zero vector, x = 0.

x = 0 is the only solution to ax = 0 if and only if the rank of the matrix a equals q, the number of unknowns. This result highlights the relationship between the null space and the rank of a matrix, providing insights into the solutions of linear equations and the properties of the matrix.

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The solution to the system of equation is (4.75, -11)

3.2x + 0.5y = 4.2

-1.6x -0.5y = 3.4

3.2x + 0.5y = 4.2

-1.6x -0.5y = 3.4

add equation(i) to equation(ii)

Therefore,

1.6x = 7.6

divide both sides by 1.6

x = 7.6 / 1.6

x = 4.75

Therefore,

3.2(4.75) + 0.5y = 4.2

0.5y = 4.2 - 15.2

0.5y = -11

y = - 11 / 0.5

y = - 22

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Answer:

The solution is x=4.75  and   y = -22

Step-by-step explanation:

To find the solution to the system of equations, we will follow the steps below:

3.2x + 0.5y = 4.2 --------------------------------------------------------------------------(1)

-1.6x -0.5y = 3.4 ----------------------------------------------------------------------------(2)

add equation (1) and equation (2)

1.6x =7.6

Divide both-side of the equation by 1.6 to get the value of x

1.6x /1.6 =7.6/1.6

x =4.75

substitute x = 4.75 into equation (1) and solve for y

3.2(4.75) + 0.5y = 4.2

15.2 + 0.5y = 4.2

subtract 15.2 from both-side of the equation

15.2 - 15.2 + 0.5y = 4.2-15.2

0.5y = -11

Divide both-side of the equation by 0.5

0.5y/0.5 = -11/0.5

y = -22

The solution is x=4.75  and   y = -22

Answer:

The sum of all the even integers between 99 and 301 is 20200

Step-by-step explanation:

For the sum of all the even integers between 99 and 301, this can be calculated using the formula for Sum of n terms in an Arithmetic Progression (AP)

Sum of n terms in an AP \(S_{n}\)= \(\frac{n }{2}[ 2a + (n - 1)d]\)

Where \(n\) is the number of terms

\(a\) is the first term

and \(d\) is the common difference

The AP for the sum of all the even integers between 99 and 301 will look like

100 + 102 + 104 + ... + 300

\(a\) = 100

\(d\) can be calculated by taking the difference of the first two terms or any two consecutive terms of the AP

Hence, \(d\) = 102 - 100 = 2

\(n\) can be determined from the formula used to calculate the Last term of an AP

\(l = a + (n - 1)d\)

Where \(l\) is the last term

In the AP, the last term, \(l\) = 300

Then

\(300 = 100 + (n - 1)2\\300 - 100 = (n - 1)2\\200 = (n - 1) 2\\(n - 1) = 200 / 2\\n - 1 = 100\\n = 100 + 1\\n = 101\)

Hence, there are 101 terms in the AP

Now, to determine the sum

\(S_{n}\)= \(\frac{n }{2}[ 2a + (n - 1)d]\)

\(S_{n} =\frac{101}{2}[ 2(100) + (101 - 1)2]\\ S_{n}=\frac{101}{2}[ 200 + (100)2]\\ S_{n}=\frac{101}{2}[ 200 + 200]\\S_{n}=\frac{101}{2}[ 400]\\S_{n} = 20200\)

Hence, the sum of all the even integers between 99 and 301 is 20200

Answer:

If the son’s age is x, the father’s age is 2x.

If the son’s age is x, the father’s age is 2x.Ten years ago:

If the son’s age is x, the father’s age is 2x.Ten years ago:(x - 10) + (2x - 10) = 52

If the son’s age is x, the father’s age is 2x.Ten years ago:(x - 10) + (2x - 10) = 523x + 20 = 52

If the son’s age is x, the father’s age is 2x.Ten years ago:(x - 10) + (2x - 10) = 523x + 20 = 523x = 72

If the son’s age is x, the father’s age is 2x.Ten years ago:(x - 10) + (2x - 10) = 523x + 20 = 523x = 72x = 24

If the son’s age is x, the father’s age is 2x.Ten years ago:(x - 10) + (2x - 10) = 523x + 20 = 523x = 72x = 242x = 48

If the son’s age is x, the father’s age is 2x.Ten years ago:(x - 10) + (2x - 10) = 523x + 20 = 523x = 72x = 242x = 48So the son’s age is 24 and the father’s is 48. Ten years ago, they were 14 and 38, which adds up to 52.

.

.

The rate of change of the level of the swimming pool is -0.019 inches per hour.

The rate of change will be given by the quotient between the change in the level of the water (-3/16 inches) and the time in which that change happens.

We know that the change happens between 10 pm and 7:45pm, so the number of hours is:

2 hours + 7 hours + 45 min

Where:

1 hour  = 60 min

45 min = 45/60 hours = 0.75 hour

Then the total time is:

2h + 7h + 0.75h = 9.75h

Then the rate of change is:

R = (-3/16 inches)/(9.75 h) = -0.019 inches per hour.

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Answer:

a subtraction

Step-by-step explanation:

C.

Subtraction Property of Equality

Step-by-step explanation:

since$420 is the original price then it's 100%

then to find the %decrease, $420-$280=$140

if, 100%=420

then x%=140

14000/420=x

x=33.3%

Answer:

To find the circumference

diameter x 3.14 = circumference

We can undo the multiplication and divide to get the diameter

37.68 /3.14 = 12

diameter / 2= radius

12 / 2 = 6

the radius is 6

radius x radius x pi = area

6 x 6 x 3.14 = 113.04

113.04 is the answer

Hope this helps

Step-by-step explanation:

Answer:

113.04 square inches.

Step-by-step explanation:

The formula to find the circumference is 2πr. The formula for the area is πr^2. We are trying to find r in order to solve the problem.

It says use 3.14 for π. The circumference is 37.68 inches.

2πr = 37.68

2 * 3.14r = 37.68

3.14r = 18.84

r = 6

Now that we know the radius of the circle, we can find the area!

πr^2 = 3.14 * (6^2) = 3.14 * 36 = 113.04.

Hope this helps!

Option (B) Yes, it is proportional because the ratios for miles per hour are all equivalent to 1.25 miles per hour is correct.

It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.

It is given that:

A group of hikers tracked how long it took to hike a 10-mile trail. They hiked 2.5 miles in 2 hours, 7.5 miles in 6 hours, and 8.75 miles in 7 hours.

From the data given:

Ratio = distance/time

2.5 / 2 = 1.25 miles per hour

7.5 / 6 = 1.25 miles per hour

8.75 / 7 = 1.25 miles per hour

Thus, option (B) Yes, it is proportional because the ratios for miles per hour are all equivalent to 1.25 miles per hour is correct.

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Answer:

conjunction

Step-by-step explanation:

Answer:

Conjunction is correct answer. (I think)