3 years ago

Plz help me with this!!!

Mathematics

1 answer:

const2013 [10]3 years ago

7 0

The perimeter of parallelogram WXYZ is 22

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What is A decreased by 20% and then increased by 20% of that? Please show your work.

umka21 [38]

$Answer: \\ A - 20\%A = A - 0.2A = 0.8A \\ 0.8A + 20\%0.8A = 0.8A + 0.2 \times 0.8A = 0.8 + 0.16A = 0.96A$

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3 years ago

DOG A dog is leashed to the corner of a house. How much running area does the dog have? Explain how you found your answer.

Eduardwww [97]

Answer:

The area will be $\frac{3\pi r^{2} }{4}$ where r is the length of the leash.

Step-by-step explanation:

The area of a circle is pi times the radius squared. One forth of that area is not available for the dog to run: its the corner of the house. so what's left is 3/4 of the area of the circle. (3/4)πr²

Since the length of the leash is not given in the question, no specific Area can be answered. Once that value is substituted for r, the actual area can be calculated.

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3 years ago

James invested $250 in a savings account for 16 years. At the end of 16 years, his savings account had $700 in it.

Nikolay [14]

I=Prt
700=(250)*r*(16)
700=4000*r
700/4000-(4000*r)/4000
0.175=r
17.5%=r

The simple interest rate is 17.5%

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3 years ago

The population of California is 3.7 x 107 people. The population of Colorado is 5.0 x 106 people. What is the difference in size

zalisa [80]

Answer:

Step-by-step explanation:

3.7 × 107 = 395.9

5.0 × 106 = 530

530 - 395.9 = 134.10

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3 years ago

Help me with my math please, it’s 6th grade

sashaice [31]

The one that has -7 and -13 on the first line.

Itd be the 2nd answer from the top.

8 0

3 years ago