2 years ago

MULTIPLE CHOICE:

Mathematics

1 answer:

babunello [35]2 years ago

5 0

Ingles C would be diagonal so your best answer be D hope this helped !!!!!!

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Given that f(x) = 2x + 5 and g(x) = x − 7, solve for f(g(x)) when x = −3.

WITCHER [35]

G(-3) = -3-7 = -10;
f(g(-3))=f(-10) = 2 x (-10) + 5 = - 20 + 5 = -15.

6 0

2 years ago

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

JulijaS [17]

Given:
Rectangle shape.
One side: 5x + 2
other side: x - 4

Area = length * width
Area = (5x+2)(x-4)
A = 5x(x-4) +2(x-4)
A = 5x² - 20x + 2x - 8
A = 5x² - 18x - 8

6 0

2 years ago

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Hannah ran 200 feet during recess. Juanita ran 350 feet during recess. In yards, how much further did Juanita run than Hannah?

ss7ja [257]

Juanita ran 240 feet than Hannah

8 0

2 years ago

Can someone help me with 1-3

mina [271]

1 would be D.
2. Is A since 3^2=9 and -3^2=9 And 9-9=0. Im pretty sure A. For number 3. Just because the two x-values are 3 and -3. I’m sorry if I’m wrong on #3.

8 0

2 years ago

A college statistics class at a nearby university has 1,000 students enrolled in it. On a recent exam, the mean score was 75% wi

IceJOKER [234]

Answer:

38.11%

Step-by-step explanation:

Given that:

Mean (μ) = 75, standard deviation (σ) = 5

Z score is a measure in statistics to determine the variation of a raw score from the mean. It is given by the equation:

$z=\frac{x-\mu}{\sigma}$

To calculate the percentage of students scored between a 73 and 78 (C grade), we need to find the z score for 73 and then for 78.

For x = 73, the z score is:

$z=\frac{x-\mu}{\sigma}=\frac{73-75}{5} =-0.4$

For x = 78, the z score is:

$z=\frac{x-\mu}{\sigma}=\frac{78-75}{5} =0.6$

From the probability distribution table:

P(73 < x < 78) = P(-0.4 < z < 0.6) = P(z < 0.6) - P(z < -0.4) = 0.7257 - 0.3446 = 0.3811 = 38.11%

4 0

3 years ago