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3 years ago

Which equation represents a line that is perpendicular to the line with equation y=2x-8? Select all that apply

Mathematics

1 answer:

lianna [129]3 years ago

8 0

Answer:

B, C, E

Step-by-step explanation:

you need to find lines whose slope is the negative reciprocal of the slope from the line you are solving for. in this case, all lines with the slope -1/2 are Perpendicular to a line with the slope of 2

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When you reject the null hypothesis, you are stating that what you did in your study significantly changed your sample.

zhenek [66]

True lol yea I totally just didn’t randomly guess haha.

7 0

3 years ago

Use the distance formula to determine the distance between (-8,10) and (-6,7)

hjlf

Answer:

Distance: $\sqrt{13}$ units

Step-by-step explanation:

The distance formula is $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ where:

$d$ is the distance between points $(x_1,y_1)$ and $(x_2,y_2)$
$(x_1,y_1)$ are the coordinates of the first point
$(x_2,y_2)$ are the coordinates of the second point

We are given that:

$(x_1,y_1)=(-8,10)$
$(x_2,y_2)=(-6,7)$

To determine the value of our distance, $d$ , we plug in our given information into the formula and solve for

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$d=\sqrt{(-6-(-8))^2+(7-10)^2}$

$d=\sqrt{(-6+8)^2+(-3)^2}$

$d=\sqrt{(2)^2+(-3)^2}$

$d=\sqrt{4+9}$

$d=\sqrt{13}$

Therefore, the distance between $(-8,10)$ and $(-6,7)$ is $\sqrt{13}$ units.

See the attached graph for a visual.

5 0

3 years ago

The area of a square is 5 far more than the perimeter. Find the length of a side.

sweet [91]

The length of a side of square is 5.

Step-by-step explanation:

Given,

Area of square = a²

Perimeter of square = 4a

According to given statement;

Area of square = Perimeter + 5

$a^2=4a+5\\a^2-4a-5=0$

Factorizing the equation;

$a^2-5a+a-5=0\\a(a-5)+1(a-5)=0\\(a-5)(a+1)=0$

Either,

a-5=0 => a=5

Or,

a+1=0 => a= -1

As length of a side cannot be negative, therefore,

Length of a side of square = 5

The length of a side of square is 5.

Keywords: area, perimeter

Learn more about perimeter at:

#LearnwithBrainly

3 0

4 years ago

Determine by inspection whether the vectors are linearly independent. Justify your answer.

jekas [21]

Answer:

B. The set is linearly independent because at least one of the vectors is a multiple of another vector.

Step-by-step explanation:

A set of n vector of length n is linearly independent if the matrix with these vectors as column has none of zero determinant. The set of vectors is dependent if the determinant is zero. In the given question the vectors have no zero determinants therefore it is linearly independent.

7 0

4 years ago

Hey! I need help giving brainliest to correct answer plz try.

DanielleElmas [232]

Answer:

5/10

Step-by-step explanation:

hope this helped

8 0

3 years ago

Read 2 more answers