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EastWind [94]
3 years ago
10

An astronaut is returning to earth in a spacecraft. If the spcecraft is descending at a rate of 13.81 kilometers per minute, wha

t will its change be in height after 5 1/2 minutes ?
Mathematics
1 answer:
aalyn [17]3 years ago
5 0

Answer:

-75.955 kilometers

Step-by-step explanation:

multiply the speed by the time to get distance

the spacecraft is descending, so change in height will most likely be answered as a negative number

13.81 × 5.5 = 75.955

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A poster shop will enlarge a photograph into a poster. Given the size of the photograph and the length of the poster, what is th
maw [93]

Answer:

Option A. k = 4.5, 54 cm

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

In this problem the constant of proportionality is equal to the scale factor

step 1

Find the scale factor

Let

k -----> the constant of proportionality

k=\frac{72}{16}=4.5 -----> ratio of the corresponding sides

step 2

Find the value of x

\frac{72}{16}=\frac{x}{12}\\\\x=4.5(12)\\\\x=54\ cm

therefore

k = 4.5, 54 cm

4 0
3 years ago
(3x+4)^2=14 what are the solutions?
kherson [118]
\bf (3x+4)^2=14\implies \sqrt{(3x+4)^2}=\pm\sqrt{14}\implies 3x+4=\pm\sqrt{14}
\\\\\\
3x=\pm \sqrt{14}-4\implies x=\cfrac{\pm \sqrt{14}-4}{3}\implies x=
\begin{cases}
\cfrac{\sqrt{14}-4}{3}\\\\
\cfrac{- \sqrt{14}-4}{3}
\end{cases}
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3 years ago
To mail some envelopes, Jason needs 16 stamps that cost 32¢ each and 8 stamps that cost 24¢ each. Which number sentence could be
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VikaD [51]
2.30 + 0.40(x - 1) < = 5.10
2.30 + 0.40x - 0.40 < = 5.10
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4 years ago
Whats a mode in math
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The number that appears in most often set of numbers, hope this helps ❤
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