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3 years ago

15

Fill in the table with the rule y = 2x-2

1 answer:

qaws [65]3 years ago

6 0

Answer:

-8 is the first one.

Step-by-step explanation:

-3(2)-2

-6-2

Hopefully this helps you understand the rest (and I was just too lazy to do all of them).

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A number is shown in expanded form.

Nana76 [90]

20,809,204 is the answer because 20,000,000+800,000+9,000+200+4

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A triangle has side lengths of 7, 24, and 25. Is the triangle right, acute, or obtuse?

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I think that it's an obtuse triangle.

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Find the area of the triangle ABC with the coordinates of A(10, 15) B(15, 15) C(30, 9).

lions [1.4K]

Check the picture below. so, that'd be the triangle's sides hmmm so let's use Heron's Area formula for it.

$~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ (\stackrel{x_1}{10}~,~\stackrel{y_1}{5})\qquad (\stackrel{x_2}{15}~,~\stackrel{y_2}{15}) ~\hfill a=\sqrt{[ 15- 10]^2 + [ 15- 5]^2} \\\\\\ ~\hfill \boxed{a=\sqrt{125}} \\\\\\ (\stackrel{x_1}{15}~,~\stackrel{y_1}{15})\qquad (\stackrel{x_2}{30}~,~\stackrel{y_2}{9}) ~\hfill b=\sqrt{[ 30- 15]^2 + [ 9- 15]^2} \\\\\\ ~\hfill \boxed{b=\sqrt{261}}$

$(\stackrel{x_1}{30}~,~\stackrel{y_1}{9})\qquad (\stackrel{x_2}{10}~,~\stackrel{y_2}{5}) ~\hfill c=\sqrt{[ 10- 30]^2 + [ 5- 9]^2} \\\\\\ ~\hfill \boxed{c=\sqrt{416}} \\\\[-0.35em] ~\dotfill$

$\qquad \textit{Heron's area formula} \\\\ A=\sqrt{s(s-a)(s-b)(s-c)}\qquad \begin{cases} s=\frac{a+b+c}{2}\\[-0.5em] \hrulefill\\ a=\sqrt{125}\\ b=\sqrt{261}\\ c=\sqrt{416}\\ s\approx 23.87 \end{cases} \\\\\\ A\approx\sqrt{23.87(23.87-\sqrt{125})(23.87-\sqrt{261})(23.87-\sqrt{416})}\implies \boxed{A\approx 90}$

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2 years ago

K(t) = 10t - 19<br> k(-5) =

DanielleElmas [232]

Answer:

-69

Step-by-step explanation:

k(-5) = 10*-5 -19

= -50-19

=-69

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sesenic [268]

Step-by-step explanation:

I am thinking the X axis. if wrong, sorry. but I am really thinking that is the answer

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2 years ago