3 years ago

Multiply and simplify the following: Y=(3x+2)(2x-5)

Mathematics

1 answer:

Lana71 [14]3 years ago

7 0

Answer: x-10

Step-by-step explanation: 3x*2x= 10x; 3x*(-5)= -15x; 2*2x= 4x; 2*(-5)= -10

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Write an appropriate direct variation equation if y = 8 when x = 4.

Snowcat [4.5K]

$\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we know that } \begin{cases} y=8\\ x=4 \end{cases}\implies 8=k4\implies \cfrac{8}{4}=k\implies 2=k \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=2x~\hfill$

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4 years ago

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butalik [34]

Answer:

Step-by-step explanation:

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3 years ago

What must be true for lines a and b to be parallel lines? Select two options.

USPshnik [31]

The answer is 58 degrees so e

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2 years ago

Connor has a bottle of blue glitter that is 7/8 full and a bottle of red glitter that is 1/3

bezimeni [28]

Answer:

13/24

Step-by-step explanation:

You subtract the 2 quantities

7/8 - 1/3

Lowest common denominator is 24

7/8 = 21/24

1/3 = 8/24

21/24 - 8/24= 13/24

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3 years ago

Same side exterior angles if m<1=4x+15 and m<8=3x+11, solve for the value of x

ella [17]

Answer:

x = 22

Step-by-step explanation:

same- side exterior angles are supplementary, thus

4x + 15 + 3x + 11 = 180, that is

7x + 26 = 180 ( subtract 26 from both sides )

7x = 154 ( divide both sides by 7 )

x = 22

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4 years ago