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Alika [10]
3 years ago
5

Select the expression equivalent to (-2x + 8.1y) - (-9x + 5.3y).

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0
ANSWER
D.) 7x+2.8y

Hope this helped!
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1.625

Step-by-step explanation:

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I have to determine whether the sides of the triangle form a pythagorean triple.​
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Step-by-step explanation:

How do you know if side lengths form a Pythagorean triple?

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Volume? Correct answers please
goldfiish [28.3K]

Answer:

V = 1385.44

Step-by-step explanation:

The equation for volume is V = π r 2 h! Where V = volume, r = radius <em>(half the diameter)</em>, and h = height. Now lets substitute what we know into this equation!

<em>Since we are giving the diameter (14) we must divide by 2 to find the radius.</em>

                         14 ÷ 2 = 7

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V = ?

Time to plug these values in!

V = π 7^{2} (9)

<em>We have to distribute </em><em>pi to 7 square that term </em><em>and then </em><em>multiply the value by 9</em><em>. </em>

<em />

V = 1385.44

Hope this Helps! :)

<em>Have any questions? Ask below in the comments and I will try my best to answer.</em>

-SGO

7 0
3 years ago
Describe and correct the error in finding the solution of the equation 2x=6x
kipiarov [429]
The error is that both sides of the equation have a variable. So if you were to combine your like terms, then you'd leave one side without a number and if your teacher is saying there is a left over number then it will be 0
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4 ....,..........................................

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