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crimeas [40]
4 years ago
7

Hi plz halp me I don’t understand and plz do step by step

Mathematics
1 answer:
miv72 [106K]4 years ago
7 0
First multiply (4x5)
Then find 2 cubed = 2x2x2= 8
Then divide 20 by 2= 20/2=10
Then 10-8= 2

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Sarah needs to make 20 same-size tablecloths using 35 yards of fabric. How many inches of fabric will she use per tablecloth?
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Answer:

63 inches per tablecloth.

Step-by-step explanation:

35 / 20 = 1.75 yards per tablecloth,

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6 0
3 years ago
Michael is painting a cylindrical tank with a radius of 15 feet and a height of 60 feet. He must determine the surface area of t
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Answer:

7069.5 ft^2

Step-by-step explanation:

Step one:

given data

dimension

radius of 15 feet

height of 60 feet

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substitute

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4 0
3 years ago
Read 2 more answers
(5-x)(5+x)=(x-4)²-7<br> Helpp((
hoa [83]
   
\displaystyle\\&#10;(5-x)(5+x)=(x-4)^2-7\\\\&#10;5^2 - x^2 = x^2-8x + 16 -7\\\\&#10;-x^2 -x^2+8x + 25 -16+7=0\\\\&#10;-2x^2 + 8x +16=0\\\\&#10;x_{12}=  \frac{-b\pm  \sqrt{b^2-4ac} }{2a}= \frac{-8\pm \sqrt{64-4\cdot(-2)\cdot 16} }{2\cdot(-2)}=\\\\&#10; = \frac{-8\pm \sqrt{64+ 128} }{-4}= \frac{-8\pm \sqrt{192} }{-4}= \frac{-8\pm \sqrt{64\cdot 3} }{-4}=\\\\&#10;=\frac{-8\pm 8\sqrt{ 3} }{-4}=2\mp 2\sqrt{ 3}\\\\&#10;\boxed{\bf x_1 = 2-2\sqrt{ 3}}\\\\&#10;\boxed{\bf x_2 = 2+2\sqrt{ 3}}



8 0
4 years ago
Please help me!!!!
antiseptic1488 [7]

Answer:

Step-by-step explanation:

1. 10.01

6 0
4 years ago
Read 2 more answers
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