Answer:
C
Step-by-step explanation:
Simplify 4.3^2-7?
= 4 × 3^2 - 7
= 4 × 9 - 7
= 36 - 7
= 29
Answer:
A) −20
Step-by-step explanation:
−5/3 (−2/3 )(−18)
Multiply the first and second terms. A negative times a negative is a positive
-5/3 * -2/3 = 10/9
10/9 * -18
Rewriting for easier math
-18/9 * 10
-2 * 10
-20
Answer:
1) 4.57
2) 5.4
3) .888
Step-by-step explanation:
7x-32=0
7x=32
32/7=4.57
X=4.57
5x-27=0
5x=27
27/5= 5.4
X= 5.4
9x-8=0
9x=8
8/9= .888
Answer is 16 because 16/4 = 4 + -12 = -8
Set up a system of equations:
x + y = 0.6
x - y = 7.2
You can solve using elimination. Add the two equations together:
2x + 0y = 7.8
2x = 7.8
x = 3.9
Then plug the number back into either of the two original equations to solve for y:
3.9 + y = 0.6
y = -3.3
The two numbers are 3.9 and -3.3
