Which of the following is equal to the rational expression when x + 4 or-9?
(x-4)(x+11)
(x +9)(x-4)
OA. X+11
X+9
X+11
OB.
X-4
O. C.
X-4
x 11
O D.
X-4
X+9

Answer:

9

Step-by-step explanation:

Answer:

4/3

Step-by-step explanation:

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

m = (9 - 1)/(8 - 2) = 8/6 = 4/3

The z-score for a GPA of 3.29 that are normally distributed with a mean of 2.47 is 1.41.

A z-score can be defined as a measure of the distance between a raw score and the mean, when standard deviation units are used.

In a normal distribution, the z-score of a given sample score can be calculated by using this formula:

Z = (x - μ)/σ

Where:

Substituting the given parameters into the formula, we have;

Z-score, z = (3.29 - 2.47)/(0.58)

Z-score, z = 0.82/0.58

Z-score, z = 1.41

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The to your question is that we can use the normal distribution to estimate the probability that the product will last between 16.536 and 8.054 years.


In this case, we want to calculate the probability for x = 16.536 and x = 8.054. The mean (μ) is 14.242 years, and the standard deviation (σ) is 3.978 years.

Using the formula, we can calculate the z-scores for both values:
For x = 16.536: z = (16.536 - 14.242) / 3.978
For x = 8.054: z = (8.054 - 14.242) / 3.978

Once we have the z-scores, we can look up the corresponding probabilities in the standard normal distribution table or use a calculator. Subtracting the probability for the lower z-score from the probability for the higher z-score will give us the probability that the product will last between 16.536 and 8.054 years.

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The minimum number of T-shirt that they must sell to raise $500 is 67 T-shirts

Let x represent the number of Pi Day T-shirts sold.

They are selling Pi Day T-shirts for $7.50 each, So to raise $500:

7.5x > 500

Dividing through by 7.5:

7.5x / 7.5 > 500 / 7.5

x > 66.7

Hence, the minimum number of T-shirt that they must sell to raise $500 is 67 T-shirts

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9514 1404 393

Answer:

  x ≈ 23.4

Step-by-step explanation:

You are correct that the given information indicates the tangent function is appropriate.

  Tan = Opposite/Adjacent

  tan(59°) = 39/x

Multiply this equation by x/tan(59°) and you get ...

  x = 39/tan(59°)

  x ≈ 39/1.6643 ≈ 23.43

The appropriate answer choice is ...

  x = 23.4

Given:

To find the value:

Explanation:

Using the BODMAS rule,

Solving the expression as follows,

Final answer:

The value of the given expression is 17.

Answer:

9. b=120 8. b=43 11 b=84 12 b=23

Step-by-step explanation:

number 9 the angle is equals to 189 number 10 they're both the same and 11 is equal to 180, 12 the angle is equal to 90

Answer:

n=10

Step-by-step explanation:

6=3n/5

multiply both sides by 5

30=3n

divide both sides 3

10=n

Answer:

The answer I believe is :  D.

~  Hope this is correct, if I'm wrong I'm sorry, have a gr8 day/ night my friend!~

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The point where marginal cost equals $15 is at the production of the 7th pizza. Therefore, the firm should produce 7 pizzas.

The firm's shut-down price is the price at which the firm is indifferent between producing and shutting down.

Using the table provided, we can calculate the missing values:

Variable Cost:

For 0 pizzas, the variable cost is $0.

For 1 pizza, the variable cost is $10.

For 2 pizzas, the variable cost is $12.

For 3 pizzas, the variable cost is $2.

For 4 pizzas, the variable cost is $1.

For 5 pizzas, the variable cost is $2.

For 6 pizzas, the variable cost is $3.

For 7 pizzas, the variable cost is $13.

For 8 pizzas, the variable cost is $16.

For 9 pizzas, the variable cost is $3.

For 10 pizzas, the variable cost is $6.

For 11 pizzas, the variable cost is $4.

Total Cost: To calculate the total cost, we simply add the variable cost and the fixed cost for each level of output. The fixed cost is not given in the table, so we cannot calculate the total cost.

Average Variable Cost:

To calculate the average variable cost, we divide the variable cost by the level of output. For example, the average variable cost for 1 pizza is $10/1 = $10.

Average Fixed Cost:To calculate the average fixed cost, we divide the fixed cost by the level of output.

Average Total Cost: To calculate the average total cost, we add the average variable cost and the average fixed cost. The firm should produce pizzas up to the point where marginal cost equals marginal revenue.

This is the point where the firm maximizes its profit. From the table, we can see that the marginal cost is increasing as output increases, while the marginal revenue remains constant at $15.

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Incorrect:

A-Reflection across line AC

B-Reflection across line BD

C-vertical translation

Correct:

D-Rotation about the center of the square

Thank you so much Please consider brainliest! <3

The answers are a.(f∘g)(x) = x^2+2x+1 and b. (g∘f)(x) = x^2+1.

Let f(x)=x^2 and g(x)=x+1. We are asked to find a.(f∘g)(x) and b. (g∘f)(x).

a. (f∘g)(x) = f(g(x)) = f(x+1) = (x+1)^2 = x^2+2x+1

b. (g∘f)(x) = g(f(x)) = g(x^2) = x^2+1

Therefore, the answers are a.(f∘g)(x) = x^2+2x+1 and b. (g∘f)(x) = x^2+1.

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Answer:

$ 21

Step-by-step explanation:

Money spent = (2/5) * 60 + (1/4) * 60

                      = 2*12 + 1*15

                      = 24 + 15

                      = $ 39

Money save = 60 - 39 = $ 21

Answer:

Together they rock chairs 60 times per minute. 1020/60=17 So it will take 17 min

The number of minutes that the check 1,020 rock chairs will be 17 minutes.

In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.

If Mr. Gillespie can rock a chair 28 times per minute, and Mr. Matheson can rock a chair 32 times per minute.

Let 'x' be the number of minutes and 'y' be the total chair that they check together. Then the equation is given as,

28x + 32x = y

60x = y

The number of minutes that the check 1,020 chairs will be given as,

60x = 1,020

x = 1,020 / 60

x = 17

The number of minutes that the check 1,020 rock chairs will be 17 minutes.

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Answer:

Step-by-step explanation:

3 purple : 1 white

30 arangement will need so

minimum will need (3+1)=4 flowers per 30 arangements =120 flowers

minimum will be (90 purple: 30 white)

Answer:

120 flowers

Step-by-step explanation:

3 purple: 1 white

We know he wants to make 30 arrangement so

1 x 30=30 white flowers

3 x 30=90 purple flowers

30 + 90=120

Answer:

The answer will be 2a×3=6a

The trigonometric ratios for this problem are given as follows:

The three trigonometric ratios are the sine, the cosine and the tangent of an angle, and they are obtained according to the formulas presented as follows:

Considering the height segment, the ratios for this problem are given as follows:

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Since we need to round up to the next integer, the required sample size for this experiment is 284 people for the confidence level.

To find the required sample size for NASA's experiment, we can use the following formula for the sample size estimation in a proportion experiment:

\(n = (Z^2 * p * (1-p)) / E^2\)

where:
- n is the sample size
- Z is the z-score corresponding to the desired confidence level (85% in this case)
- p is the estimated population proportion (0.33)
- E is the margin of error (0.04)

First, we need to find the z-score for an 85% confidence level. We can look this up in a z-table, or use an online calculator. The z-score for an 85% confidence level is approximately 1.44.

Next, we can plug the values into the formula:
\(n = (1.44^2 * 0.33 * (1-0.33)) / 0.04^2\)
n ≈ (2.0736 * 0.33 * 0.67) / 0.0016
n ≈ 283.66

Since we need to round up to the next integer, the required sample size for this experiment is 284 people.

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Answer:

4

Step-by-step explanation:

You can use the Pythagorean theorem to find the length of the unknown side.

For that, let the unknown side be x.

Let us solve now.

2² + x² = ( 2√5)²

4 + x²  = 2√5 × 2√5

4 + x² = 2 × 2 × √5 × √5

4 + x² = 4 × 5

4 + x² = 20

x² = 20 - 4

x² = 16

x = √16

x = 4

Hope this helps you :-)

Let me know if you have any other questions :-)

The coordinate of the midpoint of the segment with the given endpoints is ( 1/2, -6 ).

The midpoint formular used in finding the midpoint of a segment is expressed as;

( [x₁+x₂]/2 , [y₁+y₂]/2 )

Given the data in the question;

Point V(-2,5)

Point Z(3,-17)

Plug these values into the equation above.

( [x₁+x₂]/2 , [y₁+y₂]/2 )

( [(-2) + 3]/2 , [5 + (-17)]/2 )

( 1/2 , -12/2 )

( 1/2, -6 )

The coordinate of the midpoint of the segment with the given endpoints is ( 1/2, -6 ).

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Answer:

£3200

Step-by-step explanation:

It's not letting me upload the explanation in text so I took a screen shot and attached it:

Answer:

A.

Step-by-step explanation:

Plz mark brainliest

Answer:

A. 26

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

\(x + y = 180 \\ 140 + x = 180 \\ x = 180 - 140 \\ x = 40\)

The approximate true course of the plane to the nearest tenth of a degree is N35°. To approximate the ground speed of the plane, we need to consider the effect of the wind on its motion.

Since the wind is blowing from west to east, it will have an impact on the plane's speed and direction.

The ground speed of the plane is the vector sum of its airspeed (200 miles per hour) and the wind speed (35 miles per hour). Using vector addition, we can calculate the magnitude of the ground speed as follows:

Ground speed = sqrt(airspeed^2 + wind speed^2) = sqrt(200^2 + 35^2) ≈ 204 miles per hour (rounded to the nearest mile per hour).

Since the wind is blowing from west to east at 35 miles per hour, we can subtract this westward component from the eastward component of the plane's velocity:

118.32 - 35 ≈ 83.32 miles per hour.

To approximate the ground speed, we take the magnitude of the resulting vector:

sqrt((162.99)^2 + (83.32)^2) ≈ 186.27 miles per hour.

Therefore, the ground speed of the plane, rounded to the nearest mile per hour, is approximately 186 miles per hour.

To approximate the true course of the plane, we can use trigonometry. Since the plane is flying on a bearing of N55°E, we can consider the angle between the plane's heading (north) and the true course.

The angle between the plane's heading and the true course is the complement of the wind angle (90° - 55° = 35°).

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Answer:

p+5=3

or,p=3-5

or,p=-2

the value of p=-2