3 years ago

Simplify -5 + 3d + 6 - 4d

Mathematics

1 answer:

tankabanditka [31]3 years ago

6 0

-5+3d+6-4d

anwers is 12/-30

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Help me with this!!!!

andrezito [222]

Answer: I think it would be 3.5

Step by Step Explanation: BRAINLIEST?!?

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3 years ago

Read 2 more answers

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

$z=\frac{x}{y}$

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

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

we have

$z=\frac{4}{3}$

$y=390\ cm^{2}$

substitute and solve for x

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

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

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

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3 years ago

Find the area of the composite figure below

andrew11 [14]

The correct answer is 108 I believe

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3 years ago

What is the answer on the picture?

Anika [276]

Answer:

......

Step-by-step explanation:

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3 years ago

Keiko invested 2875 in a savings account which earns 3.15 interest compounded semiannually. What will the account be worth in 7

WITCHER [35]

A=2,875×(1+0.0315÷2)^(2×7)
A=3,578.11

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4 years ago