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defon
3 years ago
15

The following table represents a proportional relation. Find the missing values:

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:16288.xy

Step-by-step explanation:

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Try -7 and 20
I’m sorry if this is wrong
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What is the circumference of a circle whose area is 100<img src="https://tex.z-dn.net/?f=%20%5Cpi%20" id="TexFormula1" title=" \
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S=100\pi\\\\ \pi r^2=100\pi \ |:\pi\\\\ r^2=100 \\\\ r=\sqrt{100} \ , \ r > 0\\\\ r=10\\\\ C=2\pi r=2\pi \cdot 10=20\pi
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3 years ago
Create a proportion using the form = to represent the following word problem.
Anna11 [10]
Answer :
x = 53.85

Step by step explanation:
If 78% of x (some numbers) is equal to 42, then we must set this as an equation to find it.

1) Rewriting 78% as a fraction and considering that when we say 78% of some number (x) we mean a product.
78% = 78/100 ➡️ 78/100x = 42

2) Then we can go on :
100 * 78/100x = 42 * 100
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3) Alternatively, simply dividing 42 by 0.78 (78%) would come to the same result :

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4 0
2 years ago
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How can you use the quadratic formula to complete a square?
Marina86 [1]
It has become somewhat fashionable to have students derive the Quadratic Formula themselves; this is done by completing the square for the generic quadratic equation ax2 + bx + c = 0. While I can understand the impulse (showing students how the Formula was invented, and thereby providing a concrete example of the usefulness of abstract symbolic manipulation), the computations involved are often a bit beyond the average student at this point.
6 0
3 years ago
Read 2 more answers
19)
Elena-2011 [213]

Answer:

The correct answer is: Option D) 5

Step-by-step explanation:

Given equation is:

3(x + 2) + x = 2x + 16

In order to find that which values of x makes the equation true, we have to put each value of x in the equation. When both sides of equations will be equal, that value of x will be true for the equation.

Putting x = 2

3(2 + 2) + 2 = 2(2) + 16\\3(4)+2 = 4+16\\12+2 = 20\\14 \neq 20

Putting x = 3

3(3 + 2) + 3 = 2(3) + 16\\3(5)+3 = 6+16\\17+3 = 22\\20 \neq 22

Putting x=4

3(4+2)+4 = 2(4)+16\\3(6)+4 = 8+16\\18+4 = 24\\22 \neq 24

Putting x = 5

3(5+2)+5 = 2(5)+16\\3(7)+5 = 10+16\\21+5 = 26\\26 = 26

The equation is true for x = 5

Hence,

The correct answer is: Option D) 5

6 0
2 years ago
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