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adoni [48]
2 years ago
13

A) 90

Mathematics
1 answer:
Alenkinab [10]2 years ago
6 0
We know that AB is perpendicular to CD. (that was given) 

Perpendicular angles are 90 degrees because two straight lines (180) crossed make 4 90 degree angles. 

180+180=360

90*4=360    See the similarities?

7x+6= 90 degrees

Subtract 6 on both sides. 

7x=84

Divide both sides by 7.

x=12

"B" is the correct answer.

I hope this helps!
~kaikers

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Bobby will buy coffe and hot chocolate for his co-workers each cup of coffe costs $2.25 and each cup of hot chocolate costs $1.5
snow_lady [41]
He buys three cups of hot choclate cause 1.50*3= 4.50
and he buys 5 cups of coffe cause 2.25*5=11.25
and 11.25 + 4.50=15.75

3 0
3 years ago
Rebotar Inc.makes basketballs.Their fixed costs are $3,450.
melomori [17]

Answer:

<em>Since the profit is positive, Rebotar not only broke even, they had earnings.</em>

Step-by-step explanation:

<u>Function Modeling</u>

The costs, incomes, and profits of Rebotar Inc. can be modeled by means of the appropriate function according to known conditions of the market.

It's known their fixed costs are $3,450 and their variable costs are $12 per basketball produced and sold. Thus, the total cost of Rebotar is:

C(x) = 12x + 3,450

Where x is the number of basketballs sold.

It's also known each basketball is sold at $25, thus the revenue (income) function is:

R(x) = 25x

The profit function is the difference between the costs and revenue:

P(x) = 25x - (12x + 3,450)

Operating:

P(x) = 25x - 12x - 3,450

P(x) = 13x - 3,450

If x=300 basketballs are sold, the profits are:

P(300) = 13(300) - 3,450

P(300) = 3,900 - 3,450

P(300) = 450

Since the profit is positive, Rebotar not only broke even, they had earnings.

8 0
2 years ago
Let p=x^2-2 which equation is equivalent to (x^2-2)^2+18=9x^2-18 in terms of p
Bad White [126]

Answer:

The equivalent equation is p^2 + 18 = 9p

Step-by-step explanation:

p is given by the following relation:

p = x^2 - 2

And we are given the following equation:

(x^2 - 2)^2 + 18 = 9x^2 - 18

On the right side, we can simplify. So

(x^2 - 2)^2 + 18 = 9(x^2 - 2)

Replacing x^2 - 2 by p, the equation is:

p^2 + 18 = 9p

6 0
3 years ago
PLS HELP ME AND SHOW WORK.
mario62 [17]

Answer:

(x-2)^{2} +(y+6)^{2} =49

Step-by-step explanation:

equation of circle =

(x-h) ^{2} + ( y-k)^{2} = r^{2}

( h , k ) = center of origin

r^{2} = radius

origin = ( 2 , -6 )

radius = 7

(x-2)^2+(y+6)^2=49

3 0
3 years ago
The figure shows triangle PQR and some of its transformed images on a coordinate grid:
tangare [24]
A and b for a while lol
4 0
2 years ago
Read 2 more answers
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