Answer:
2
Step-by-step explanation:
2x + 4 = 8
subtract 4 from both sides
2x = 4
divide by 2
x = 2
Answer:
15 degrees Fahrenheit
Step-by-step explanation:
Subtract the temperatures
The equation at the right has been incorrectly solved, the answer to this is b = -7
Answer:
Volume of the cylinder is 75.43
Step-by-step explanation:
Volume of Cylinder is 
where r is base radius = 2 and h is the height = 6
(22/7) × 2² × 6
= (22/7) × 4 × 6
= (22/7) × 24
= 528/7
= 75.43
Step-by-step explanation:
log <base a> b = x
means
a^x = b
So
3^2 = x^2+7x+21
x^2 + 7x + 21 - 9 = 0
x^2 + 7x + 12 = 0
(x+3)(x+4)
x = -3 or -4
