can someone tell me which answer in order is correct

Answer:

The simplified answer to that is -0.2x.

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Answer:

-0.2x

Step-by-step explanation:

If x is negative then,

-0.2(-2) = 0.4

Answer:

50o • (x + 16)

Step-by-step explanation:

it stays the same.

Answer:

y=-3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-(-3))/(3-(-4))

m=(-3+3)/(3+4)

m=0/7

m=0

y-y1=m(x-x1)

y-(-3)=0(x-(-4))

y+3=0(x+4)

y+3=0

y=0-3

y=-3

Answer:

25

Step-by-step explanation:

multiply 3 1/2 by 6

add the answer 4 times

I THINK

Answer:

Inches

Step-by-step explanation:

Answer: The correct answer is inches because radius and Diameter are always given in a single form unit of measure.

Inches units represents the diameter of the circle.

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Hope this helps.

Answer:

\(x = 20\)

Step-by-step explanation:

They are similar trapezoids, so that their corresponding sides are also similar.

\( \frac{24}{16} = 1.5\)

So that

\( \frac{30}{x} = 1.5 \\ x = 20\)

The range, population variance, and population standard deviation for the given data set are 28, 83.36, and 9.12,

To calculate the range, population variance, and population standard deviation for a given data set, we can use the following formulas:

Range = max value - min value

Population variance = (∑(x - mean)^2) / n

Population standard deviation = √(population variance)

Where "x" represents each individual value in the data set, "mean" is the average of the values in the data set, and "n" is the total number of values in the data set.

For the given data set {8, 3, 10, 10, 8, 3, 4, 5, 7, 31}, the range is 31 - 3 = 28.

The mean of the data set is (8 + 3 + 10 + 10 + 8 + 3 + 4 + 5 + 7 + 31) / 10 = 10.6.

The population variance is

\([(8 - 10.6)^2 + (3 - 10.6)^2 + (10 - 10.6)^2 + (10 - 10.6)^2 + (8 - 10.6)^2 + (3 - 10.6)^2 + (4 - 10.6)^2 + (5 - 10.6)^2 + (7 - 10.6)^2 + (31 - 10.6)^2] \div 10 = 83.36.\)

The population standard deviation is √(83.36) = 9.12.

Therefore, the range, population variance, and population standard deviation for the given data set are 28, 83.36, and 9.12, respectively.

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Answer:

a is the answer because when x⁴ will go up it will be x-4

-3h is value of function j(x +h)-j(x) .

What is functions ?

j(x) = 3x-1

J(x + h ) = 3 ( x + h ) + 1

put the value

j(x +h)-j(x) = 3x-1 -  3 ( x + h ) + 1

                = 3x - 1 - 3x -3h + 1

                = -3h

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The domain of the function f(x) = 12x^(3/2) + 12x^(3/5) is all real numbers.

(a) The domain of the function f(x) = 12x^(3/2) + 12x^(3/5) is all real numbers since there are no restrictions or limitations on the values of x.

(b) The function f(x) does not exhibit any symmetries. It is neither even nor odd.

(c) Taking the limits as x approaches positive and negative infinity, we find:

lim(x→+∞) f(x) = +∞ (The function grows without bound as x approaches infinity)

lim(x→-∞) f(x) = -∞ (The function decreases without bound as x approaches negative infinity)

(d) To find the x-intercepts, we set f(x) equal to zero and solve the equation:

12x^(3/2) + 12x^(3/5) = 0

By factoring out a common factor of 12x^(3/5), we have:

12x^(3/5)(x^(3/10) + 1) = 0

Setting each factor equal to zero, we find two x-intercepts:

x^(3/10) + 1 = 0

This equation has no real solutions.

x = 0

This is the only x-intercept of the function.

To find the y-intercept, we evaluate f(x) at x = 0:

f(0) = 12(0)^(3/2) + 12(0)^(3/5) = 0

Therefore, the y-intercept is at the origin (0, 0).

(e) The function f(x) = 12x^(3/2) + 12x^(3/5) is increasing for all x since its derivative, f'(x), is always positive.

(f) To determine the intervals of concavity and any points of inflection, we need to find the second derivative of f(x). The second derivative is:

f''(x) = 18x^(1/2) + 36x^(-2/5)

The concavity of the function changes at points where f''(x) equals zero or is undefined. However, f''(x) is always positive, so there are no points of inflection.

(g) Based on the given information, we can sketch the graph of the function f(x). The graph will start at the origin (0, 0) and increase without bound as x approaches positive infinity.

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Given:

The function is

\(f(x)=7x+11\)

To find:

The domain, range, and intercepts of the function.

Solution:

We have,

\(f(x)=7x+11\)

It is a linear function, and domain and range of these types of functions  are all real numbers.

\(Domain:(-\infty,\infty)\)

\(Range:(-\infty,\infty)\)

Put x=0 in f(x), to find the y-intercept.

\(f(0)=7(0)+11\)

\(f(0)=0+11\)

\(f(0)=11\)

So, the y-intercept is 11.

Put f(x)=0 in f(x), to find the x-intercept.

\(0=7x+11\)

\(0-11=7x\)

\(-11=7x\)

Divide both sides by 7.

\(\dfrac{-11}{7}=x\)

So, the x-intercept is \(\dfrac{-11}{7}\).

Therefore, \(Domain:(-\infty,\infty), Range:(-\infty,\infty), x-intercept : (\dfrac{-11}{7},0),\) \(y-intercept :11\).

Answer:

in what sentence all i see is the letters no image above

The computation shows that the placw on the hill where the cannonball land is 3.75m.

To find where on the hill the cannonball lands

So 0.15x = 2 + 0.12x - 0.002x²

Taking the LHS expression to the right and rearranging we have:

-0.002x² + 0.12x -.0.15x + 2 = 0.

So we have -0.002x²- 0.03x + 2 = 0  

I'll multiply through by -1 so we have

0.002x² + 0.03x -2 = 0.

This is a quadratic equation with two solutions x1 = 25 and x2 = -40 since x cannot be negative x = 25.

The second solution y = 0.15 * 25 = 3.75

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Complete question:

The flight of a cannonball toward a hill is described by the parabola y = 2 + 0.12x - 0.002x 2 . the hill slopes upward along a path given by y = 0.15x. where on the hill does the cannonball land?

Answer:

Hello! I think the answer is D: $2.25. Please correct me if i'm wrong.

Step-by-step explanation:

Answer:

D: $2.25

Step-by-step explanation:

To determine if the proportions of mortality rates between the Vitamin A group and the No Vitamin A group are significantly different, we can perform a hypothesis test using the chi-squared test for independence.

Let's set up the null and alternative hypotheses:

Null hypothesis (H0): The proportion of mortality rates is the same between the Vitamin A and No Vitamin A groups.

Alternative hypothesis (H1): The proportion of mortality rates is different between the Vitamin A and No Vitamin A groups.

We can calculate the expected values for each group assuming that there is no difference in mortality rates. The expected value for each group can be calculated as (total deaths / total sample size) * group sample size.

For the Vitamin A group:

Expected deaths = (total deaths / total sample size) * group sample size = (27 / 360) * 200 = 15

For the No Vitamin A group:

Expected deaths = (total deaths / total sample size) * group sample size = (27 / 360) * 160 = 12

Now, we can set up a contingency table:

                 Mortality       No Mortality       Total

Vitamin A 12 (observed) 188 (observed) 200

No Vitamin A 15 (observed) 145 (observed) 160

Total 27 333 360

To perform the chi-squared test, we calculate the chi-squared test statistic:

χ^2 = Σ [(O - E)^2 / E]

where O is the observed frequency and E is the expected frequency.

Calculating the chi-squared test statistic using the values from the contingency table, we get:

χ^2 = [(12 - 15)^2 / 15] + [(188 - 185)^2 / 185] + [(15 - 12)^2 / 12] + [(145 - 148)^2 / 148]

= 0.6 + 0.081 + 0.75 + 0.55

≈ 1.981

Next, we need to determine the degrees of freedom (df) for the test. For a 2x2 contingency table, df = (number of rows - 1) * (number of columns - 1) = (2 - 1) * (2 - 1) = 1.

Using a significance level (α) of 0.05, we can consult a chi-squared distribution table or use statistical software to find the critical chi-squared value for df = 1 and α = 0.05. Let's assume the critical value is 3.841.

Since the calculated chi-squared value (1.981) is less than the critical value (3.841), we fail to reject the null hypothesis. This means that there is not enough evidence to conclude that the proportions of mortality rates between the Vitamin A and No Vitamin A groups are significantly different at the 0.05 level of significance.

However, it is important to note that the conclusion may change based on the actual critical value obtained from the chi-squared distribution table or statistical software.

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Answer:0.1

Step-by-step explanation:

0.1

1.521 is the probability when the die is rolled at least two times which is greater than 3.

Probability: It is an event that depends upon the number of favorable outcomes and the total outcomes, and also defines the ratio of the number of favorable outcomes to the total outcomes in that sample space.

The general formula for probability is:

P(A)=n/N=outcomes in A/outcomes in sample space.

Here, a number greater than 3 we can take as 4 or 5 so the total number of dies rolled is 4, and the total number of the die is 6 which is rolled 2 times greater than 3.

\(P(A)=2-(\frac{5}{6} )^4\\\\P(A)=2-(\frac{625}{1296} )\\\\P(A)=\frac{2592-625}{1296} \\\\P(A)=\frac{1971}{1296} \\\\P(A)=1.5208333\)

Thus, the total probability is 1.521

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Answer:

Step-by-step explanation:

8.4 x 2 = 16.8

200 $ 250 earbuds and 50 $ 400 earbuds should be stocked.

Given that a retailer plans to sell two models of earbuds at costs of $ 250 and $ 400, and the $ 250 model yields a profit of $ 45 and the $ 400 model yields a profit of $ 50, and the retailer estimates that the total monthly demand will not exceed 250 units, to find the number of units each model that should be stocked in order to maximize profit, given that the retailer is not investing more than $ 70,000 in inventory, the following calculation should be performed:

Therefore, 200 $ 250 earbuds and 50 $ 400 earbuds should be stocked.

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Answer:

x°+5 x°+5

2xo

f(g(_1))=2xo

Answer:

vertex = (2, - 32 )

Step-by-step explanation:

given a quadratic function in standard form

y = ax² + bx + c ( a ≠ 0 ) , then the x- coordinate of the vertex is

x = - \(\frac{b}{2a}\)

given

y = 2(x + 2)(x - 6) ← expand factors using FOIL

   = 2(x² - 4x - 12 ) ← distribute parenthesis

y   = 2x² - 8x - 24 ← in standard form

with a = 2, b = - 8 , then

x = - \(\frac{-8}{4}\) = 2

substitute x = 2 into the function for corresponding y- coordinate

y = 2(2 + 2)(2 - 6) = 2(4)(- 4) = 8 × - 4 = - 32

vertex = (2, - 32 )

The solution for 8 cos 2 ( t ) − 2 sin ( t ) − 7 = 0 for all solutions 0 ≤ t < 2 π is

t ≈ 0.896 rad and t ≈ 5.387 rad.

We can use the trigonometric identity:

cos(2t) = 2cos²t - 1, to rewrite the equation as:

8(2cos²t - 1) - 2sint - 7 = 0

Simplifying and rearranging terms, we get:

16cos²t - 2sint - 15 = 0

Using the identity sin²(t) + cos²(t) = 1, we can substitute sin(t) = ±√(1 - cos²(t)) and get a quadratic equation in terms of cos(t):

16cos²(t) - 2(±√(1 - cos²(t))) - 15 = 0

Solving for cos(t), we get:

cos(t) = ±√(17)/4

Since 0 ≤ t < 2π, we can use the inverse cosine function to find the solutions in this interval:

t = cos⁻¹(√(17)/4) and t = 2π - cos⁻¹(√(17)/4)

Therefore, the solutions are:

t ≈ 0.896 rad and t ≈ 5.387 rad.

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Answer:

-9

Step-by-step explanation:

Answer:

-9

Step-by-step explanation:

using BODMAS, our mathematical operation begins with the bracket.

it implies that from -3(-2+5), we solve the bracket.

-2+5=3

then our mathematical operation is the 'of' operation.

it implies that -3(3) = -9

Answer is -9

Answer:

1 answer is 2

2 answer 4

3 answer 10

Step-by-step explanation:

Add 1+1

get 2

Add 2+2

get 4

Add 3+7

get 10

Answer:

The elevation of the bottom of the canyon is 85 4/5 feet below sea level. To convert it to the normal number, we can convert the fractional part to decimal by dividing the numerator by the denominator. So 4/5 can be converted to 0.8. Now we can add this decimal part to the whole number.

85 + 0.8 = 85.8

So the elevation of the bottom of the canyon is -85.8 feet below sea level.

The elevation of the bird's nest is 880 1/2 feet above sea level.

So the difference in elevation between the bottom of the canyon and the bird's nest is = 880 + 0.5 - (-85.8) = 880.5 - (-85.8) = 966.3

Therefore, the difference in elevation between the bottom of the canyon and the bird's nest is 966.3 feet

So, the bird flies 966.3 feet to reach the nest.

The additional information that would have to be true for the parallelogram to also be a rhombus is D. Opposite angles congruent

All rhombuses are parallelograms, but not all parallelograms are rhombuses. In a rhombus, all four sides are equal and the diagonals intersect at 90 degrees. In a parallelogram, the opposite sides are equal and the diagonals bisect each other.

Because its sides are parallel to one another, a rhombus can also be referred to as a particular kind of parallelogram. 360° is the total number of angles in a rhombus. Angles on either side of one another are equal, and adjacent angles are supplementary angles.

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Conditions (a) and (c) are necessary for n to be divisible by 6, but neither is sufficient. Condition (d) is both necessary and sufficient for n to be divisible by 6.

(a) and (c) are necessary conditions because 6 is a multiple of 3 and 12, so any number that is divisible by 6 must also be divisible by 3 and 12. However, being divisible by 3 or 12 does not guarantee divisibility by 6. For example, 9 is divisible by 3 but not by 6, and 12 is divisible by 12 but not by 6.

Condition (d) is both necessary and sufficient for divisibility by 6 because 6 is the product of 2 and 3, and 24 is the product of 2, 3, and 4. Any number that is divisible by 2, 3, and 4 is also divisible by 6.

Conditions (e) and (f) are not necessary or sufficient for divisibility by 6. For example, 9^2 is divisible by 3 but 9 is not divisible by 6, and 6 is even and divisible by 3 but not all even numbers divisible by 3 are also divisible by 6.

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Answer:

composite number

Step-by-step explanation:

gssjkspfpfigogptitootjf

Hello!

0 4 5

The numbers that you can make by using these number cards will definitely be a Even number

The approximate student-teacher ratio at Logan's high school is approximately 13.95:1.

To find the approximate student-teacher ratio at Logan's high school, we divide the total number of students by the total number of teachers.

Student-Teacher Ratio = Number of Students / Number of Teachers

The student-teacher ratio at Logan's high school is determined by dividing the total number of students (2650) by the total number of teachers (190).

Student-Teacher Ratio = 2650 / 190 ≈ 13.95

This means that, on average, there are around 13.95 students for every teacher at Logan's high school. The student-teacher ratio is often used as an indicator of class size and the level of individual attention students may receive from teachers.

Therefore, the approximate student-teacher ratio at Logan's high school is approximately 13.95:1.

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