We use the <span>Pythagorean Theorem method.
</span><span><span>a^2 </span>+ <span>b^2 </span>= <span>c^2
</span></span>
9^2 + b^2 = 15^2
9^2 + 12^2 = 15^2
The length of side B is 12 cm
Answer:
the sum of the first 1000 positive integers is 500500
Step-by-step explanation:
Answer:
23/7
Step-by-step explanation:
7x + 15 = 38
subtract 15 from both sides : 7x+15-15=38-15
7x=23
divide both sides by 7: 7x/7 = 23/7
x=23/7
Answer: $2.80
Step-by-step explanation: .80×3 is 2.40 plus half of .80 is 2.80
Answer:
Step-by-step explanation:
a. 9(4x - 3y - 
)
36x - 27y - (
* )
36x - 27y - 
36x - 27y - 6
b. -2 (-6x + 3y - 1)
12x - 6y + 2
c. 
(20y - 4x - 13)
4y - 
x - 
- x + 4y -
d. 8(-x - 
)
-8x - 4
e. -8(-x - 
y + 
)
8x + 
y - 
8x + 6y - 28
Hope that helps!
