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2 years ago

Question 1 (15 points)

Mathematics

2 answers:

marta [7]2 years ago

6 0

Answer:

For each situation, decide if it requires Noah to calculate surface area or volume. Explain your reasoning.

Noah is planning to paint the bird house he built. He is unsure if he has enough paint.

Noah is planning to use a box with a trapezoid base to hold modeling clay. He is unsure if the clay will all fit in the box.

Step-by-step explanation:

Dmitry_Shevchenko [17]2 years ago

6 0

Answer:

For each situation, decide if it requires Noah to calculate surface area or volume. Explain your reasoning.

Noah is planning to paint the bird house he built. He is unsure if he has enough paint.

Noah is planning to use a box with a trapezoid base to hold modeling clay. He is unsure if the clay will all fit in the box.

Step-by-step explanation:

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Step-by-step explanation:

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Mother knows best :)

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3 years ago

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

Find the scale factor

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

Find the area of the larger figure

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

A group of forest rangers work 5 days per week. It takes them 3 days to plant trees on 1/3 acre. What is the unit rate in acres

Talja [164]

I would say 5/9 acres a week

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3 years ago