4 years ago

I Don’t Understand this.

Mathematics

1 answer:

cupoosta [38]3 years ago

7 0

I think it's either B or C, not completely sure

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Which line is perpendicular to a line that has a slope of 1/2 ?

Lunna [17]

The answer is HJ i took the test and got it right :)

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4 years ago

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What value of b will make the expressions −12.8x+b and −3.2(4x−2.1)+2.4 equivalent?

telo118 [61]

$- 12.8x + b = - 3.2(4x - 2.1) + 2.4$

Distribute -3.2 through the parentheses

$- 12.8x + b = - 12.8x + 6.72 + 2.4$

Cancel equal terms on both sides of the equation

$b = 6.72 + 2.4$

Add the decimals

$b = 9.12$

<em>Thus, The expression are equivalent at b = 9.12...~</em>

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2 years ago

Multiply.

shtirl [24]

When you multiply a negative and a positive you will get a negative answer so 3*7 is 21 so -3 * 7 is -21

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3 years ago

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The the slope of a line is 2. Use the coordinates (3,10) of the labeled point to find the point slope equation of the line.How?

Ipatiy [6.2K]

The point slope equation of a line with slope m through point (h, k) is
y - k = m(x - h)

You have m = 2, h = 3, k = 10. Put those numbers in their place in the equation.
y - 10 = 2(x - 3)

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3 years ago

What are the x and y- intercepts for the line 4(y+3)=−2(x+6)?

Strike441 [17]

The x-intercept is (-12, 0)
The y-intercept is (0, -6)
Let me know if you want to see how I answered it

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3 years ago