Answer:
A right angle measures 90°.
A supplementary angle is twice the measure of a complementary angle.
Step-by-step explanation:
Answer:
Piano Play has the better deal
Step-by-step explanation:
Piano Play has the better deal because it has a lower unit rate
Make Music’s unit rate is 52.5 when you divide $525 by 10 hours
Piano Play’s unit rate is $45 when you divide $540 by 12 hours
Answer:
17.3
Step-by-step explanation:
To solve this equation, you need to use the pythagorean theorem which is:

a= length
b= height
c= hypotenuse
First, substitute in your values for the equation:

Then, use the squares in the equation:

Then, subtract 100 from both sides to isolate b:

Finally, square root both sides to get your answer:

Then round to the nearest tenth which gives you 17.3.
Answer:
Midpoint coordinates are 
Step-by-step explanation:
The Coordinates of R = (-8,3)
The Coordinates of S = (9, -7)
Let M be the mid point of M and its coordinates by (x,y)
Now, by mid point formula,

⇒
So, the midpoint coordinates are 