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3 years ago

8

The slope of the line passing through the points (k, 1) and (5, -11) is perpendicular to the line 4x + 3y = -21. What is the val

ue of k?

1 answer:

pishuonlain [190]3 years ago

7 0

Answer:

21

Step-by-step explanation:

all the details are in the attached picture.

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The area of a trapezoid field is 480 square m. The distance between two parallel sides is 15 m and one of the parallel sides is

Makovka662 [10]

Answer:

44m

Step-by-step explanation:

area of a trapezoid = (a+b)* h/2

since the distance between two parallel sides is 15, that would be your height

plug everything in and you get:

480 = (20 + b) *15/2

b = 44

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4 years ago

У + 2х = 7<br> у = 3х – 3<br> What is the answer to this

Neko [114]

I think the correct answer is ( 2, 3 )

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3 years ago

Salina’s age is one-quarter the age of her aunt. If a represents her aunt’s age, which expression represents Salina’s age?

ch4aika [34]

Salina is 1/4 of age of unt
s=1/4 times a
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4 years ago

Read 2 more answers

On paper, make a rectangle that has points A and B as two of its vertices and has a perimeter of 40 units. Draw and label the tw

Westkost [7]

Answer:

$A(x,y),B(x+10,y),C(x+10,y-10) \:and\: D(x,y-10)$

Step-by-step explanation:

If a Rectangle has a perimeter of 40 units, then we can write that formula and find the a formula for the coordinates:

$\left\{\begin{matrix}w+l=20 & \\ w*l=100 & \end{matrix}\right.\Rightarrow w=20-l\Rightarrow (20-l)l=100\Rightarrow -l^2+20l-100=0\Rightarrow l^2-20l+100\Rightarrow (l-10)(l-10)\Rightarrow l=10\therefore l=10\: and\: w=10$

Therefore we can say:

$A(x,y),B(x+10,y),C(x+10,y-10) \:and\: D(x,y-10)$

Technically when $w=l$ in this rectangle is a square, a degenerate square.

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3 years ago

Pls help will give brainliest and 5star plss

guajiro [1.7K]

For 3. It is the fourth choice. This is because angle DGF is vertical angle and thus equal to angle EGB. Then angle BGF is supplementary to this angle.
So your answer is EGB+BGF=180

For 4. It is the first choice of 62 ft. It is the midpoint so is half the total line segment.

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3 years ago