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3 years ago

Simplify this expression. If it is already simplified, then write it as it is.

Mathematics

1 answer:

kirill [66]3 years ago

7 0

Answer:

18x^5 +28x^2

Step-by-step explanation:

20x^2 + 14x^5 + 8x^2 + 4x^5

Combine like terms

20x^2 + 8x^2 + 4x^5+ 14x^5

28x^2 + 18x^5

We usually write the highest power term first

18x^5 +28x^2

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Find the value of r so the line that passes through each pair of points has the given slope.

3241004551 [841]

Answer:

r = 1

Step-by-step explanation:

slope = change in y / change in x, so:

change in y / change in x = 2/3

5 - r / 7 - 1 = 2/3

5 - r / 6 = 2/3

$\frac{5-r}{6}=\frac{2}{3}$

now solve this equation.

first, multiply both sides by 6 to get rid of the fraction:

$5 - r = 4$

subtract 5 from both sides

$-r=-1$

multiply both sides by -1

$r=1$

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2 years ago

Find the value of x that satisfy the inequality x + 2<7

earnstyle [38]

X+2 < 7
Subtract both sides by 2
x < 5
Any value where x was less than 5 would be correct.

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2 years ago

What’s the value of n in the equation-1/2(2n+4)+6=-9+4(2n+1)

klemol [59]

Answer:

n=13/7

Step-by-step explanation:

2n+4+6*2=-9*2+8(2n+1)

2n+4+12=-18+16n+8

16+18=16n-2n+8

34=14n+8

34-8=14n

26=14n

n=13/7

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2 years ago

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NNADVOKAT [17]

The answer is -130. hope this helps.

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There are 18 female students and 16 male students in a class. Which of the following expresses the ratio of female students to m

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9:8
9 female to 8 male

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2 years ago

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