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Yakvenalex [24]

2 years ago

8

Find the value of Z for the triangles

1 answer:

kolbaska11 [484]2 years ago

4 0

Answer:

z = 17.5

Step-by-step explanation:

segment RX is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is

$\frac{RS}{RT}$ = $\frac{SX}{TX}$ , substitute values

$\frac{15}{z}$ = $\frac{6}{7}$ ( cross- multiply )

6z = 105 ( divide both sides by 6 )

z = 17.5

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For the graphed exponential equation, calculate the average rate of change from x = −3 to x = 0.

iragen [17]

Answer:

$-\frac{7}{3}$

Step-by-step explanation:

To solve this, we are using the average rate of change formula:

$m=\frac{f(b)-f(a)}{b-a}$

where

$m$ is the average rate of change

$a$ is the first point

$b$ is the second point

$f(a)$ is the function evaluated at the first point

$f(b)$ is the function evaluated at the second point

We want to know the average rate of change of the function $f(x)=0.5^x-6$ form x = -3 to x = 0, so our first point is -3 and our second point is 0. In other words, $a=-3$ and $b=0$ .

Replacing values

$m=\frac{f(b)-f(a)}{b-a}$

$m=\frac{0.5^0-6-(0.5^{-3}-6)}{0-(-3)}$

$m=\frac{1-6-(8-6)}{3}$

$m=\frac{-5-(2)}{3}$

$m=\frac{-5-2}{3}$

$m=\frac{-7}{3}$

$m=-\frac{7}{3}$

We can conclude that the average rate of change of the exponential equation form x = -3 to x = 0 is $-\frac{7}{3}$

4 0

3 years ago

4 (1/2x 7) = 12. what is x. can someone do the whole answer with the work?

alina1380 [7]

4(1/2x7)=12 <=> x28/2=12
x=12*2/28=24/28=12/14=6/7

8 0

3 years ago

Simplify the following by removing the brackets: a (b-c)+d (b-c)<br>

netineya [11]

Answer:

ab - ac + db - dc

Step-by-step explanation:

you distribute the variables inside the parenthesis

4 0

2 years ago

What is 7 devided by 215 and the reminder of it

miss Akunina [59]

30 with the remainder of 714

6 0

3 years ago

Whitch coordinate pair is the best estimate of the point of intersection in thisgraph 30 point

egoroff_w [7]

Answer:

a

Step-by-step explanation:

4 0

3 years ago