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Oxana [17]
3 years ago
7

If f(x)=-2x-6, then f^-1(x)

Mathematics
1 answer:
iVinArrow [24]3 years ago
7 0
y=-2x-6. \newline y^{-1}=\frac{1}{2}(-y-6).
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are any two regular polygons similar. The area of the smaller figure is about 390 cm^2. choose the best estimate of the area of
galben [10]

Answer:

The best estimate of the area of the larger figure is 693\ cm^{2}

Step-by-step explanation:

step 1

<em>Find the scale factor</em>

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x-----> the corresponding side of the larger figure

y-----> the corresponding side of the smaller figure

so

z=\frac{x}{y}

we have

x=12\ cm

y=9\ cm

substitute

z=\frac{12}{9}=\frac{4}{3} -----> the scale factor

step 2

<em>Find the area of the larger figure</em>

we know that

If two figures are similar, then the ratio of its  areas is equal to the scale factor squared

Let

z----> the scale factor

x-----> the area of the larger figure

y-----> the area of the smaller figure

so

z^{2}=\frac{x}{y}

we have

z=\frac{4}{3}

y=390\ cm^{2}

substitute and solve for x

(\frac{4}{3})^{2}=\frac{x}{390}

(\frac{16}{9})=\frac{x}{390}

x=390*16/9=693.33\ cm^{2}

4 0
3 years ago
What is the slope of the line shown below?
Thepotemich [5.8K]

Answer:

○ A. \frac{6}{5}

Step-by-step explanation:

Starting from the y-intercept of [0, 5], you do \frac{rise}{run}by either moving six blocks <em>south</em><em> </em>over five blocks <em>west</em><em> </em>or six blocks <em>north</em><em> </em>over four blocks <em>east</em><em> </em>[<em>west</em><em> </em>and <em>south</em><em> </em>are negatives].

I am joyous to assist you anytime.

3 0
3 years ago
Bob’s car needs a new transmission, a repair that will cost $1,763.00. Bob does not have enough money in his savings account to
Inessa [10]
171.87*12=2062.44
2062.44-1763=299.44
5 0
3 years ago
Read 2 more answers
WHOEVER ANSWERS THE QUESTION FIRST WILL GET 15 POINTS!!!!!
nevsk [136]

Answer:

b

Step-by-step explanation:

the answer is b

in the problem you can put the expression into a calculator and you will get the answer 3

in option b, y+2=3 bc a variable is always equal to one so your basically adding 1+2 which is equal to 3

I HOPE I HELPED A BIT<3

5 0
2 years ago
Roy weighs 150 pounds and plans to lose 1.5 pounds a week. Luis weighs 200 pounds and plans to lose 2.5 pounds a week.
solniwko [45]

Answer: when Luis is on his his 10th week of lossing weigh and when roy is on his 9th week they will weigh the same

Step-by-step

4 0
3 years ago
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