3 years ago

How to check this answer 14+17=31

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

6 0

THE WAY YOU CHACK THE ANSWER IS BY SUBTRACTING 31-17 AND SEEING IF IT GIVES YOU 14 OR THE OTHER WAY AROUND

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(5+6b^3)^2 expand and combine like terms

Drupady [299]

Answer:

$( 5 + 6b^3)^2 = 36b^6 + 60b^3 + 25$

Step-by-step explanation:

$(a + b)^2 = a^2 + b^2 + 2ab$

So,

$(5 + 6b^3)^2 = (5)^2 + (6b^3)^2 + 2 (5)(6b^3)$

$= 25 + 36b^6 + 60b^3$

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2 years ago

An angle measures 54° less than the measure of a supplementary angle. What is the measure of each angle?

Katen [24]

X+x+54=180
2x+54=180
2x=126
x=63
63+54=117
one angle is 63, the other is 117

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2 years ago

Find a common difference of the arithmetic sequence -2, -1 4/5, -1 3/5, -1 2/5,

elixir [45]

Answer:

The common difference is $\frac{1}{5}$ or 0.2

Step-by-step explanation:

Given:

Arithmetic Sequence -2, -1 4/5, -1 3/5, -1 2/5,

First term = a₁ = -2

Second term = a₂ = $\frac{-9}{5}$

Third term = a₃ = $\frac{-8}{5}$

Fourth term = a₄ = $\frac{-7}{5}$

To Find:

Common Difference = d = ?

Solution:

Formula for Common Difference d , $\textrm{common difference}= \textrm{Second Term} -\textrm{First Term}=\textrm{Third Term}-\textrm{Second Term}$

$\textrm{common difference} = a_{2}- a_{1}= a_{3}- a_{2}=a_{4}- a_{3}$

∴ $d = \frac{-9}{5}-(-2)\\d=\frac{-9}{5}+2\\d=\frac{1}{5}\\ \therefore d =0.2\\$

The common difference is $\frac{1}{5}$ or 0.2

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2 years ago

Determine what type of decimal number each fraction converts to.

Y_Kistochka [10]

A: .44 (not repeating)
b: also .444 (repeating)
c: .41666666667 (repeating, I think)
d: .875 (not repeating)

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2 years ago

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The length of a photograph is 1 less than twice the width. The area is 45 cm squared. Find the dimensions of the photograph.

kkurt [141]

the lenght is 9 and the width is 5 so 9 by 5

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3 years ago

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