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3 years ago

Complete the equation of the line through ( − 8 , 8 ) (−8,8) and ( 1 , − 1 0 ) (1,−10). Use exact numbers.

1 answer:

4 0

$\bf (\stackrel{x_1}{-8}~,~\stackrel{y_1}{8})\qquad (\stackrel{x_2}{1}~,~\stackrel{y_2}{-10}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-10-8}{1-(-8)}\implies \cfrac{-18}{1+8}\implies \cfrac{-18}{9}\implies -2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-8=-2[x-(-8)] \implies y-8=-2(x+8) \\\\\\ y-8=-2x-16\implies y=-2x-8$

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WHAT IS 1598726887465*65489

coldgirl [10]

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3 years ago

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3 years ago

Please help! / 50 points

lutik1710 [3]

Answer:

Solution given:

radius [r]=4

height [h]=5

we have

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3 years ago

The area of the rectangle as a single expression

Ne4ueva [31]

Answer: $A=15x^2+6x-48$

Step-by-step explanation:

The area of a rectangle can be calculated with this formula:

$A=l*w$

Where "l" is the length and "w" is the width.

You can identify from the figure that the length and the width of this rectangle are:

$length=3(x+2)\\width=5x-8$

Then, you need to substitute this lenght and this width into $A=l*w$ :

$A=3(x+2)(5x-8)$

Now, apply Distributive property:

$A=(3x+6)(5x-8)\\\\A=15x^2-24x+30x-48$

Finally, you need to add the like terms. Then, you get:

$A=15x^2+6x-48$

5 0

3 years ago

4.OA.2: The Turner family uses 548 liters of water per day. The Hill family uses 3 times as much water per day. How much more wa

Anika [276]

Answer:

1096 more water

Step-by-step explanation:

Let;

x = the water used in general

but used 3 times of the original = 3x

3*(548) = 1644 water a day

How much more water =New - original

where:

new = 1644

original= 548

1644 - 548

=1096 more water

6 0

2 years ago