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3 years ago

Write the equation of the line that passes through the point ( − 8 , 2 ) and is perpendicular to the line y = 8

Mathematics

1 answer:

GarryVolchara [31]3 years ago

6 0

Answer:

x=-8

Step-by-step explanation:

y=8 is a horizontal line crossing the y-axis at 8

A line perpendicular to this would be a vertical line crossing the x-axis at -8

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Find the coordinates of the missing endpoint if B is the midpoint of AC. C(-5,4), B(-2,5) I need the steps and answer pls and ty

mylen [45]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
A&({{ x}}\quad ,&{{ y}})\quad 
% (c,d)
C&({{ -5}}\quad ,&{{ 4}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-5+x}{2}~,~\cfrac{4+y}{2} \right)=\stackrel{B}{(-2,5)}\implies 
\begin{cases}
\cfrac{-5+x}{2}=-2\\\\
-5+x=-4\\
\boxed{x=1}\\
----------\\
\cfrac{4+y}{2}=5\\\\
4+y=10\\
\boxed{y=6}
\end{cases}$

3 0

3 years ago

What is the input variable,x, for this situation?

Radda [10]

Answer:

input

Step-by-step explanation

Because it is a causal relationship between x and y

4 0

4 years ago

Which of the following has two congruent parallel discs for bases? A.Cylinder B.Cone C.Prism D.Pyramid

tresset_1 [31]

A cone and a pyramid don't have parallel base, they have a base with a vertice.
A prism and a cylinder have parallel bases. But the bases of a prism are not disc-shape. The bases of a cylinder are.

The answer is a. cylinder

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4 years ago

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Explain how you would find the perimeter of this triangle.

Lynna [10]

Answer:

15.4

Step-by-step explanation:

$\frac{u}{4}$ = tan51.3° ⇒ u = 4tan51.3° ≈ 5

$\frac{4}{v}$ = cos51.3° ⇒ v = $\frac{4}{cos51.3}$ ≈ 6.4

P ≈ 4 + 5 + 6.4 = 15.4

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2 years ago

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zhuklara [117]

We know that
Mean and median both try to measure the central tendency in a data set.The mean is commonly used, but sometimes the median is preferred.
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therefore
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3 years ago

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