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2 years ago

This is classwork and i don't understand it at all PLEASE HELP

Mathematics

1 answer:

sukhopar [10]2 years ago

6 0

Answer:

The independent variable is the number of cars

the band washes and the dependent is the number of money they earn

Step-by-step explanation:

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What is the slope of the graph of 14x + 7y = –9?

Vera_Pavlovna [14]

We will put ur equation in y = mx + b form, and the slope will be in the m position.

14x + 7y = -9
7y = -14x - 9
y = (-14/7)x - 9/7
y = -2x - 9/7

y = mx + b
y = -2x + (-9/7)....as u can see, the -2 is in the m position and is therefore the slope.

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3 years ago

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Calculate the geometric mean of 2 and 200

kakasveta [241]

The geometric mean of 2 & 200 is *(20)*

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2 years ago

Marvin marked off the ground for a rectangular garden. The garden was to have an area represented by the polynomial expression 2

mafiozo [28]

Answer: 621

Step-by-step explanation: 28^2+ 13 − 176

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2 years ago

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cupoosta [38]

Hope this helps you with your questions.

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2 years ago

A function is given. h(t) = t2 + 3t; t = −1, t = 2

Arlecino [84]

Answer:

(a) The net change of the function is 12.

(b) The average rate of change of the function 4.

Step-by-step explanation:

The average rate of change of function $f(x)$ over the interval $a\leq x\leq b$ is given by this expression:

average rate of change = $\frac{net \:change \:in \:y}{change \:in \:x} = \frac{f(b)-f(a)}{b-a}$

It is a measure of how much the function changed per unit, on average, over that interval.

Given:

$h(t)=t^2+3t\\\\t=-1\\t=2$

(a) To find the net change of the function, first we calculate the values of $h(2)$ and $h(-1)$

$h(-1)=(-1)^2+3(-1)=-2\\\\h(2)=(2)^2+3(2)=10$

The net change is simply the difference

$h(2)-h(-1)=10-(-2)=12$

(b) The average rate of change takes the net change and divides it by the change in the $t$ value.

$\frac{12}{2-(-1)} =\frac{12}{3}=4$

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3 years ago

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