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disa [49]
3 years ago
12

Help, Explain too cuz I don't really get it.

Mathematics
2 answers:
MaRussiya [10]3 years ago
8 0

Answer:

So we know that these to shapes are scaled copies, so find two angles on them and see what they divid too. Example: A has 2.5 B has 5, if we divide 5 by 2.5 we get 2. And if we times 2.5 by 2 we get 5 as are total. We now know that 2 is going to be the number that helps us crack all of these angles.

<em>B ANSWERS: </em>

Because we know that 2.5 times 2 gets us 5 thats going to be the same answer for the angle on the right. In other words <u>5 is the answer for B's missing right angle.</u>

If we follow the same formula we get <u>3 for B's missing left angle. </u>

<em>A ANSWERS:</em>

This time instead of mutilplying we are dividing. 53/2 gives us 26.5, so <u>26.5 is the answer for the top right angle.</u>

<u></u>

Same dividing, <u>41 is the answer for the bottom left missing angle.</u>

<u></u>

monitta3 years ago
4 0

Answer:

The big polygon is double the size of the original, So the side question mark is 5 and the degrees is 1, 26.5 and 2, 41 degrees

Step-by-step explanation:

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An artist used a scale factor of 1 in=8 ft to create a model of a building. if the actual building has a height of 64 feet, how
nalin [4]

Answer:

<em>Okay, so what I think you mean to ask what the scale factor between the model and actual building</em> is, so i crunched the numbers. if 1 in equaled 8 feet and the actual thing was 64 ft, then we can just say that 64 divided by 12 is 5.3, so the model could be

5.3 ft. is the size of the model

BUT

you said how many feet are they apart so in inches its 705, in ft its 58.75

Step-by-step explanation:

a foot is 12 in.

64/12 is 5.3

64 ft is 768 inches, and 5.3 is 63.

768-63 = 705.

there are 705 inches in difference, in feet its 58.75

8 0
3 years ago
Thirty percent of a radioactive substance decays in four years.
wel

Answer:

The substance decays by 7.5% every year

Step-by-step explanation:

8 0
3 years ago
900 is what percent of 1200
xeze [42]

Answer:

75%

Step-by-step explanation:

900 /1200=  .75=75%

8 0
3 years ago
If I plan to run 400 yards and I have completed 80%, how many yards do I have left?
Dimas [21]

Answer:

You have 80 yards left to run.

Step-by-step explanation:

To solve this problem, we first must realize that if you have completed 80% of the run, that you have 20% left (this is because 100%-80% = 20%).  

Next, we must find 20% of 400 yards.  We must remember that in math, the word "of" represents multiplication.  We also know that 20% = 20/100 = 0.2.

To find 20% of 400 yards, we can perform the following operation:

20% * 400

0.2 * 400

80

Therefore, you have 80 yards left.

Hope this helps!

7 0
3 years ago
Match the lengths of the hypotenuse and one leg of a right triangle to the length of the other leg.
Lynna [10]
1. D
2. B
3. A
4. C
Basically always use a^2 + b^2 = c^2 it gives you your A and C so subtract your A from you C and you have your B
3 0
3 years ago
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