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8_murik_8 [283]
3 years ago
15

- 4x + 8y = 20 ----4x + 2y = -30

Mathematics
1 answer:
snow_tiger [21]3 years ago
5 0

Answer:

40

Step-by-step explanation:

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Find the volume of a CUBE if its side length is : x+2 in polynomial form
goldfiish [28.3K]
Volume = Length x Length x Length

Volume :

(x + 2) (x + 2) (x + 2)

= (x² + 4x + 4)(x + 2)

= x³ + 2x² + 4x² + 8x + 4x + 8

= x³ + 6x² + 12x + 8

Answer: x³ + 6x² + 12x + 8
8 0
3 years ago
Which is equivalent?
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Answer:

A

Step-by-step explanation:

Given

\frac{x}{\sqrt{2} }

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= \frac{x\sqrt{2} }{\sqrt{2}(\sqrt{2})  }

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2 years ago
Convert 2 3/4 to a decimal number
Solnce55 [7]

Answer:2.75

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which point is 10 units from (2,5)
zalisa [80]

Answer:

All the points on (x - 2)² + (y - 5)² = 100

Step-by-step explanation:

It should be the circle with its center on point (2,5) and radius is 10.

(h , k) : center of circle (2,5)    h = 2     k = 5

r: radius     r = 10

Circle: (x - h)² + (y - k)² = r²

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5 0
3 years ago
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Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean te
Stells [14]

Answer:

the answer is 93

Step-by-step explanation:

mean of x,y,z

x+y+z

3 terms

(x+y+z)/3=mean

so

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count how many terms ther are (6 terms)

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add the like terms

(447+x)/6=90

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447+x=540

subtract 447 from both sides

x=93

4 0
2 years ago
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