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Alex Ar [27]
3 years ago
15

Yong is measuring two pyramids whose bases are rectangles.

Mathematics
1 answer:
ElenaW [278]3 years ago
7 0

Answer:

Answer is 7/2 cm

Step-by-step explanation:

1. Set a ratio

7=\frac{3V}{l*w}:h=\frac{3V}{l*2w}

2. Move 2w from denominator to LHS (Left hand side)\frac{7}{2}w=\frac{3V}{l}

\frac{7}{2w}=\frac{3V}{l}

3. The four options are 7/4, 7/2, 14 or 28 cm

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12% less since faster
100%-12%=88%

88% of 4 min and 23 sec=
0.88 times 263 seconds=
=231.44=3 minutes and 50 seconds rounded

3 mins, 50 seconds
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3 years ago
What is the correlation coefficient for the data shown in the table?
xxTIMURxx [149]

Answer:

The correlation coefficient is -1

Step-by-step explanation:

Here, we want to get the correlation coefficient for the given dataset

from the table, what do we observe?

As x is increasing by 5 units;

y is decreasing by 5 units

What this mean is that there is a negative correlation between both

Thus, what we have here is that, since the rate of increase/decrease on both ends is of equal magnitude but opposite signs, we can conclude that the correlation coefficient is -1

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A section of the crust moves under another section of crust without changing the land
Alex17521 [72]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
21 Last year Chelsea and Sonya took 236 pictures during Thanksgiving. This year Chelsea and Sonya each took the same amount of p
Leokris [45]

Let 'c' represent the number of pictures Chelsea took.

Let 's' represent the number of pictures Sonya took.

For last year's Thanksgiving, c + s = 236

For this year's Thanksgiving, let 'x' represent the number of photos taken in total. x = c + s, where c and s are two integers that are the same (c = s).

And we know that for both years, c + s + x = 500.

As we know that c + s is already 236 from last year, we can remove c + s from the equation in bold and replace it with 236 instead.

236 + x = 500.

Now we have to isolate the x term.

x = 500 - 236

x = 264.

We know that x = c + s, where c and s are the same, so we can just use one of the variables and double it (so you either get 2c or 2s - it doesn't matter which one you pick because they're both the same).

2c = 264

c = 132

c = s

s = 132.

Both took 132 pictures this year.

4 0
3 years ago
M5+m2+m3=180 whays the rwason
Marta_Voda [28]

Answer: 45

Step-by-step explanation: the fub

6 0
3 years ago
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