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3 years ago

15-(4m - 5) = 32 please help me

Mathematics

2 answers:

atroni [7]3 years ago

7 0

The answer is = -3, hope this helps!

Sav [38]3 years ago

7 0

Answer:

m = -3

Step-by-step explanation:

15 - (4m - 5) = 32 (Given)

15 - 4m + 5 = 32 (Distributed)

20 - 4m = 32 (Added like terms)

20 - 4m - 20 = 32 - 20 (Subtract 20 on both sides)

-4m = 12 (Simplify)

-4m/-4 = 12/-4 (Divide -4 on both sides)

m = -3 (Simplify)

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3 years ago

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Write an equation in slope intercept form of the line shown (1,-3) (3,1)

OLga [1]

Answer:

y = 2x - 5

Step-by-step explanation:

Using the slope intercept formula y2 - y1 / x2 -x1...

You get a slope of 2 so y = 2x +b

Then to find b the intercept, you plug in one of the coordinates like so...

1 = 2(3) + b

Then solve to get an intercept of -5.

So the slope-intercept form would be...

y = 2x - 5

3 0

3 years ago

The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is y + 7 = (x – 10). What is the stan

Crank

Answer:

Step-by-step explanation:

We are given coordinates of the line passed through (–5, –1) and (10, –7) .

Applying slope formula,

$Slope=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-5,\:-1\right),\:\left(x_2,\:y_2\right)=\left(10,\:-7\right)$

Therefore,

$m=\frac{-7-\left(-1\right)}{10-\left(-5\right)}$

$m=-\frac{2}{5}$

Therefore, slope is $m=-\frac{2}{5}$ .

Applying point-slope form $y-y_1=m(x-x_1),$ we get

$y+7 = -\frac{2}{5}(x-10)$

$y+7=-\frac{2}{5}(x-10)$

On multiplying both sides by 5, we get

$5(y+7)=5\times-\frac{2}{5}(x+1)$

5y+35=-2(x-10)

5y+35=-2x+20

Adding 2x on both sides, we get

5y+25+2x=-2x+20+2x

2x+5y+35=20

Subtracting 35 from both sides, we get

2x+5y+35-35=20-35

2x+5y=-15.

Therefore, required equation is :

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2 years ago

Please help me on this question. I forgot how to do it

NeTakaya

Answer:

141

Step-by-step explanation:

Area of triangle = 24

Area of Trapezoid= 117

117+24

141

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3 years ago

Write the equation in standard form<br> using factoring.<br> f(x) = (2x<br> +<br> 1)(x – 4)

klemol [59]

Answer:

2x^2-7x-4

Step-by-step explanation:

=2x^2-8x+x-4

=2x^2-7x-4

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3 years ago