Answer:
A
Step-by-step explanation:
Using the pythagorean theorem, 
we plug the numbers in; 
9+36=c^2
45=c^2
sqr root of 45 is 
next find the positive perfect sqr root of 45 which will be 9.
9 goes into 45 5 times so it will be 
Sqr root of 9 is 3 so it will be 
Answer:
3 miles per hour
Step-by-step explanation:
his speed is 12/4 (or 3) miles an hour. What you do, is you have to multiply 15 by four to go from 15 min to one hour, and you also have to multiply 3/4 by four.
D. None of these.
Equilateral is the only triangle that has all the sides that are equal to each other. Hope this helped you :)
You will have to multiply 80 and the percentage. First you will have to change the percentage to a decimal which in this case it will be 0.39 ( for the first one) so then multiply it so it will be 80x0.39=31.2 and you will do the same with the others just replace the numbers with the one that you are doing hope this helps.
Answer:
y = 
x + 7
Step-by-step explanation:
Given
x = 3t ( divide both sides by 3 )
x = t
Substitute this value into y = 2t + 7
y = 2 × x + 7 = x + 7
