3 years ago

Please help ill mark brainliest!

1 answer:

8 0

So to find the area of a rectangle you would use the formula A = L • W. So the actual dinning hall is 9 • 3 = 18; 18cm would be your area.

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Please Find the solution to the following system using substitution or elimination: y = 3x + 7 y = -2x -3

Dmitrij [34]

Answer: A (-2, 1)
see image explanation attached

5 0

3 years ago

HELP ME PLEASE Find the slope of the line and write it as a rate of change.

Eduardwww [97]

Answer:

Step-by-step explanation:

6 0

3 years ago

Calculate the average rate of change of f(x) = 1 x - x2 - 2 for 3 ≤ x ≤ 6. A) -163 18 B) -18 163 C) 163 18 D) 18 163

larisa86 [58]

To solve this we are going to use the average rate of change formula: $A(x)= \frac{f(b)-f(a)}{b-a}$
where
$A(x)$ is the average rate of change of the function
$f(a)$ is the position function evaluated at $a$
$f(b)$ is the position function evaluated at $b$
$a$ is the first point in the interval
$b$ is the second point in the interval

We can infer for our problem that the first point is 3 and the second point is 6, so $a=3$ and $b=6$ . Lets replace those values in our formula:
$A(x)= \frac{f(b)-f(a)}{b-a}$
$A(x)= \frac{f(6)-f(3)}{6-3}$
$A(x)= \frac{6-6^2-2-(3-3^2-2)}{3}$
$A(x)= \frac{-32-(-8)}{3}$
$A(x)= \frac{-32+8}{3}$
$A(x)= \frac{-24}{3}$
$A(x)=-8$

We can conclude that the average rate of change of the function f(x) = 1 x - x2 - 2 for <span>3 ≤ x ≤ 6 is -8</span>

3 0

3 years ago

Read 2 more answers

How do i solve this in the quadratic formula?

liraira [26]

Firstly mines 2x for 2 side
And combine 1 for 2 side
Result 6x^2+17x+5
So
(3x+1)(2x+5)=0
X=-1/3 or x=-5/2

6 0

3 years ago

2x 4y = 12.4 in decimal form

nalin [4]

2 x 4y = 12.4

4y = 6.2

y = 6.2/4

= 1.55

hope this helps

3 0

3 years ago