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Ad libitum [116K]
3 years ago
7

Stephen was thinking of a number. Stephen adds 7.9 to the number, then doubles the result to get an answer of 20. Form an equati

on with x from the information
Mathematics
1 answer:
a_sh-v [17]3 years ago
3 0

Answer:

Step-by-step explanation:

2(x+7.9)=20

x+7.9=20/2=10

x=10-7.9=2.1

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Which of the following equations is equivalent to S=pi r^2 h
lara31 [8.8K]

The equation that is equivalent to S=pi r^2 h is h = S/pir^2

<h3>Subject of formula</h3>

This is a way of representing a variable with another. Given the equation

S=pi r^2 h

We are to make 'h" the subject of the formula.

Divide both sides by pir^2

S/pir^2 =pi r^2 h/pir^2

h = S/pir^2

Hence the equation that is equivalent to S=pi r^2 h is h = S/pir^2

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2 years ago
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Answer:

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2 years ago
Quadrilateral ABCD ​ is inscribed in a circle.
alexdok [17]
When a quadrilateral is inscribed in a circle, the opposite angles are supplementary.

x + 2 + 3x + 6 = 180
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7 0
3 years ago
PLZ PLZ HALP!!
bogdanovich [222]

Answer:

(A) - (5)

(B) - (4)

(C) - (1)

(D) - (2)

Step-by-step explanation:

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(D) We are given the polynomial (x+2)²(x+1)²

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