3 years ago

Which equation represents a line that passes through (2,-1/2) and has a slope of 3

Mathematics

1 answer:

Kamila [148]3 years ago

7 0

Answer:

Step-by-step explanation:

The slope-point formula is y-y₁=m(x-x₁). So if you plug in your information you get C.

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Cos(x/3)cos(x/3)=1/2(1+cos(2x/3))

TEA [102]

This follows from the half-angle identity for cosine.

$\cos^2\theta=\dfrac{1+\cos2\theta}2$

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3 years ago

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use the associative property to write two different expressions that you can use to find the sum add 1, 3 and 25

Mekhanik [1.2K]

(1+3)+25=1+(3+25)

(25+1)+3=25+(1+3)

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2 years ago

Solve for x. 3x− 8 = −x −8

Harrizon [31]

Answer:

x=0

Step-by-step explanation:

Cancel -8 on both sides.

3x=−x

Subtract -x from both sides.

3x+x=0

Simplify 3x+x to 4x.

4x=0

Divide both sides by 4

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3 years ago

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220 is 20% of what number? Explain

Kitty [74]

0.20a=220

Where 0.20 is the decimal form of 20%
a is the unknown number

0.20a=220
------- -----
0.20 0.20
a=1100

220 is 20% of 1100.

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3 years ago

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Pls help I don’t know hot to multiply the last part 8 2

icang [17]

Answer:

8^2 = 64

Step-by-step explanation:

Hi! Okay, let's get started!

$8^{2}$ is what you need help with right?

So, that equals to 8 x 8.

8 x 8 = 64, so it would be 64

Hope that helps!

-Aphrodite :)

7 0

3 years ago