7*-4= -28 +4-12/2
-24-6
=-30
Solution: The needed answer for first blank is 1 and the needed a for second blank is 1.
Explanation:
The given equation is
.
The form of perfect square is
.
The given equation can be written as
.
To make the perfect square we can add or subtract
in the given equation. Where, a is coefficient of
and b is coefficient of x. In the parenthesis the coefficient of
is 1 and coefficient of x is 2.

So, the given equation is written as 

Therefore, the needed answer for first blank is 1 and the needed a for second blank is 1.
Answer: Yes.
Step-by-step explanation: If a number ends in 0, 2, 4, 6, or 8, the number even number.
Answer:
x = 12
Step-by-step explanation:
10x = 120 original equation
10x/10 = 120/10 divide both sides by 10
x = 12 simplify
Check work:
10(12) = 120
120 = 120 (true)
Answer:
904.78 m³
Step-by-step explanation:
V = 4/3 × π r³ = 4/3 × π × 6³ = 904.78