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Vesnalui [34]
3 years ago
8

Which ratios are equal to 64 when the scale factor is 8? Select all that apply.

Mathematics
1 answer:
Luden [163]3 years ago
5 0

Answer:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

Step-by-step explanation:

Suppose that we have a cube with sidelength M.

if we rescale this measure with a scale factor 8, we get 8*M

Now, if previously the area of one side was of order M^2, with the rescaled measure the area will be something like (8*M)^2 = 64*M^2

This means that the ratio of the surfaces/areas will be 64.

(and will be the same for a pyramid, a rectangle, etc)

Then the correct options will be the ones related to surfaces, that are:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

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stira [4]

The air force plane travelled for a total of 6.9 hours.

<u>SOLUTION: </u>

Given, An Air Force plane left Nairobi and flew west at an average speed of 159 mph.  A cargo plane left sometime later flying in the same direction at an average speed of 207 mph.  After flying for 5.3 hours the cargo plane caught up with the Air Force plane.  

We have to find the number of hours the Air Force plane flew before the cargo plane caught up.

Now, we know that, \text { distance travelled }=\text { speed } \times \text { time }

For air force plane \rightarrow \text { distance travelled }=159 \mathrm{x} \text { time taken by air force plane }

\text { For cargo plane } \rightarrow \text { distance travelled }=207 \times 5.3 \text { hours }

Now, when cargo plane caught the air force plane the distance travelled by the planes will be equal.

So, 159 \times \text { time taken by air force plane }=207 \times 5.3

\Rightarrow =\frac{207 \times 5.3}{159}

\Rightarrow =\frac{1097.1}{159}

Time taken by air force plane = 6.9  hrs

6 0
3 years ago
I NEED THE ANSWER AS SOON AS POSSIBLE PLEASE!!​
Anit [1.1K]

Answer:

\Large \boxed{\sf \ \ 4\sqrt{a^2+b^2}  \ \ }

Step-by-step explanation:

Hello,

You can use Pythagoras in the 4 right triangles.

For one triangle it comes \sqrt{a^2+b^2}.

Then for the polygon it gives 4\cdot \sqrt{a^2+b^2}.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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3 years ago
THIS IS WORTH 74 points
Debora [2.8K]

Answer:

Your answer is 163⁄200Step-by-step explanation:

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2 years ago
Leo's model airplane uses O.03 L of fuel each minute it flies.Lf the fuel tank holds O.5 L, how long can the plane fly without r
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Closest you can get w/out going over.

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Answer:

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Step-by-step explanation:

From the excerpt it can be seen that Giglamesh reaches to this top spot and asks for help. His friend Enkidu does the ritual just to support his ideas. He does all that it takes to have a dream and puts Giglamesh on the floor.

So it can be interpreted that friendships are supportive relationships.

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