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3 years ago

15

The table shows the total number of trees cut down by a logging company over a two-week period. What was the average rate of cha

nge between Day 9 and Day 14?

1 answer:

irina [24]3 years ago

7 0

Average rate of change = slope so lets get our y's and x's and plug them into y2-y1 / x2-x1. (14-9)/(308-195) and that equals 5/113

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A student’s height is 145cm. He goes to a pond where the average water depth is 110cm. Does this student have a risk in the pond

Elodia [21]

Yes, because 145-110=35

3 0

3 years ago

Maya is solving the quadratic equation by completing the square.

kvasek [131]

Step-by-step explanation:

factor 4 out of the variable terms, as this helps.

but my approach is simply to define the target and then calculate "backwards".

we want to find

(ax + b)² = a²x² + 2abx + b²

and now we compare with the original equation :

a²x² = 4x²

a² = 4

a = 2

2abx = 16x

2×2×bx = 16x

4b = 16

b = 4

b² = 16, but we have only 3, so we need to subtract 16-3 = 13 from the completed square.

so, our equation is

(2x + 4)² - 13 = 0

(2x + 4)² = 13

2x + 4 = sqrt(13)

2x = sqrt(13) - 4

x = sqrt(13)/2 - 2

6 0

1 year ago

X intercept f(x)=(x+4)^2

natali 33 [55]

Answer:

<h2>-4</h2>

Step-by-step explanation:

Given the function f(x)=(x+4)², <u>the x intercept occurs at f(x) = 0,</u> substituting f(x) = 0 into the given equation to get the value of x we have;

$0 = (x+4)^{2} \\$

Taking the square root of both sides

$\sqrt{(x+4})^{2} = \sqrt{0}\\ x+4 = 0\\$

Subtracting 4 from both sides of the equation

$x+4-4 = 0-4\\x = -4$

Therefore the x intercept of the equation is -4

4 0

2 years ago

Can someone please hep me with this question Jordan is proofreading his personal narrative.

charle [14.2K]

Answer:

When proofreading, you should make sure all details are accurate and writing mechanics are correctly used.

7 0

3 years ago

2c divided by 3b, for b=2 and c=6

Levart [38]

(2c) / (3b)

(2*6) / (3*2) =
12/6 =
2 <===

8 0

3 years ago

Read 2 more answers