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2 years ago

What is the value of x?????

Mathematics

1 answer:

ioda2 years ago

5 0

x=4, because 10+(4*2)=10+8=18 and since it is a rectangle the sides are the same.

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Which equation represents a line through (-4, 3) that is perpendicular to y=x+7?

Oksana_A [137]

Answer:

B. y = -x - 1

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes, so the slope of the new line will be -1.

Plug the slope and the given point into y = mx + b to find b:

y = mx + b

3 = -1(-4) + b

3 = 4 + b

-1 = b

Then, plug this and the slope into y = mx + b

y = -x - 1

So, the correct answer is B, y = -x - 1

7 0

3 years ago

In parallelogram ABCD, LA = 120°. What is AD?<br> O80°<br> O 120°<br> O60°

erastovalidia [21]

Angle D is 60° because it is a supplementary angle, meaning 180 (straight line) - 120 (angle A) = 60°

3 0

3 years ago

Geri spent Friday, Saturday and Sunday selling a total of 24 magazines orders for her school.The amounts on those 3 days were co

ryzh [129]

The sale on Friday = x = 6

The sale on Saturday = x+2 = 6 + 2 =8

The sale on Sunday = x+4 = 6+4 =10

Step-by-step explanation:

Let x be the sale of Friday

Then

x+2 will be the sale of Saturday

x+4 will be the sale of Sunday

According to the given statement, that the total sales were 24

$x+(x+2)+(x+4) = 24\\x+x+2+x+4 = 24\\3x+6 = 24\\Subtracting\ 6\ from\ both\ sides\\3x+6-6=24-6\\3x=18\\Dividing\ both\ sides\ by\ 3\\\frac{3x}{3} = \frac{18}{6}\\x=6$

The sale on Friday = x = 6

The sale on Saturday = x+2 = 6 + 2 =8

The sale on Sunday = x+4 = 6+4 =10

Keywords: Linear equations

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Please Help....................................

vazorg [7]

The answer are:
(-4,5)

(2,2)

(-1, -3)

(3,4)

(2,-1)

(-5,6)

5 0

3 years ago

A metal rod is 7/8 Meters long. It will be cut into pieces that are each 1/56 meters long. How many pieces will be made from the

damaskus [11]

49 pieces because 7/8 is equivalent to 49/56. If each piece is 1/56, then there 49 of them.

6 0

2 years ago