Answer:
A. The answer is 7.4x10^3
Answer:
5/4
Step-by-step explanation:
2 1/2=5/2
(5/2)(1/2)=5/4
Answer:
x= -8 , y = 5
x= 25/4 , y = 1/4
Step-by-step explanation:
substitute first eqn into the second eqn:
(7 - 3y)^2 -y^2 = 39
49 - 42y + 9y^2 - y^2 = 39
8y^2 - 42y +10 =0
4y^2 - 21y + 5 = 0
(4y-1) (y-5) = 0
y= 1/4 , 5
when y=1/4
x = 7- 3/4
=25/4
when y= 5
x = 7- 15
= -8
Answer:
(9,5.5)
Step-by-step explanation:
The answer should be 23. Not sure if you have multiple choices, or have to show the work, but 23 is the answer.