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tatyana61 [14]
2 years ago
11

HELP!!!!I don’t get it. I need an explanation.

Mathematics
1 answer:
mestny [16]2 years ago
5 0

Answer: 9 is  -1

11 is -2 and 13 is -2

Step-by-step explanation:

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Help me please. I don't understand this.
navik [9.2K]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Apparently, you're being asked to identify the sequence of steps you would use to compute the volume of the pyramid.

It seems to be a good idea to start with the formula for the volume.

Then, recognize that you need to compute B, so make that computation. The area of the base (B) is the product of the base dimensions (14)(12).

Once you have the value of B, then you can put that, along with the value of h, into the original volume formula.

Evaluating it gives the volume in cubic units.

_____

<em>Additional comment</em>

If you're familiar with the pyramid volume formula, you know that you must compute B before you can make use of the formula. That makes the sequence be B=14(12); B=168; V=1/3Bh; V=1/3(168)(7).

However, if you're starting from scratch, it is probably good to begin with the volume formula. That is what tells you that you need to find B in the first place. This is the sequence we show below.

6 0
3 years ago
One number exceeds another by -1. the sum of the numbers is 5. what are the numbers?
maks197457 [2]
X-y=-1
x+y=5
y=x+1
x+x+1=5
2x+1=5
2x=4
x=2
y=x+1
y=2+1
y=3
4 0
3 years ago
Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only) (6 points)
mamaluj [8]

Answer:

x = 35.68533471.. degrees

Step-by-step explanation:

5-7-12 right triangle

According to Soh Cah Toa, the angle you are looking for is sin(x) = 7/12. Solve.

7 0
3 years ago
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Scorpion4ik [409]
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A boxer is put on a diet to gain 20 lb in four weeks. The boxer gains 4 1/3 lb the first week and 5 5/6 lb the second week. How
V125BC [204]

Answer:

9.8 lbs

Step-by-step explanation:

4 1/3 + 5 5/6= 10 1/6

20 - 10 1/6 = 9.8

7 0
3 years ago
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