MATHEMATICS HIGH SCHOOL

If two lines intersect, what angle measures will add to 180°?adjacent angles
supplementary angles
vertical angles
opposite angles

Answers

Answer 1
Answer: Answer= Supplementary Angles

Supplementary angles are two angels whose sum is 180°
Answer 2
Answer:

Answer:

adjacent angles

supplementary angles

Step-by-step explanation:

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What multiplies to equal 50, but adds to equal 12?

Answers

5 because 5x10=50 and 7+5=12
Nothing. If you are factoring you are going to need to use the quadratic formula for this problem.       

___% of 750 = 37.5

20

15

10

7

5

Answers

Answer:

let y% of 750 = 37.5

y = 3750/750

= 5
I think is 5 not sure

In the exponential growth formula, P= (Psubscript0) (r) ^t , t represents...(A) the initial population
(B) the population after time
(C) the rate of increase
(D) the time

Answers

Answer:

It's D.

Step-by-step explanation:

D. The  t  s the time where t = 0 corresponds to the  initial population.

Factoring the difference of two squares x^2-1

Answers

difference of 2 perfect squres
if yo have
a^2-b^2 that equals (a-b)(a+b)

x^2-1^2=(x-1)(x+1)
tada
(X^2-1^2) (x-1)(x+1) I hope that is good!

For the coordinates of P and M (the midpoint) are given. Find the coordinates for Q.P(-2, 3) and M (5, 1)

Answers

Given an endpoint and a midpoint, to look for the other endpoint, the midpoint formula is merely manipulated. The average of the x-coordinates for P and Q have to equate to the x-coordinate of M. The same is applied to the y-coordinates. This is shown below:

X-coordinates:

(-2 + Qx)/2 = 5
(-2 + Qx) = 10

Qx = 12

Y-coordinates:

(3 + Qy)/2 = 1
3 + Qy = 2

Qy = -1

Therefore, Q has the coordinates (12 , -1)

a sweater was on sale for 40% off the regular price.Ella saved $20 by buying the sweater on sale. What was the regular price of the sweater?

Answers

The sweater has a discount with is 40% of the regular price.
She saved 20 dollars on  the sweater that she bought.
Let's solve for the original price of the sweater then,
=> 20 dollars = 40%.
Let's look for the 60%.
=> 20 / 4 = 5 dollars is the 10% of the sweater's original price.
=> 5 dollars * 10 = 50 dollars
=> Thus the original price of the sweater is 50 dollars.
If you divide 20 by 40% (20/.4) you get 50. The original price was $50 :)
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