Answer:
24
Step-by-step explanation:
You need to plug in 3 for all of the x-values
That looks like 2(3)^2 + 5(3) - 9
Then if you simplify it is 2(9) + 15 - 9
Then simplify one last time and you get a final answer of 24
Answer:
5 x^2 - 32
Step-by-step explanation:
Simplify the following:
3 x^2 + 2 x^2 - 32
Grouping like terms, 3 x^2 + 2 x^2 - 32 = (2 x^2 + 3 x^2) - 32:
(2 x^2 + 3 x^2) - 32
2 x^2 + 3 x^2 = 5 x^2:
Answer: 5 x^2 - 32
X^2-16 is a difference of squares of the form:
(a^2-b^2) which always factors to:
(a+b)(a-b), in this case we have:
(x+4)(x-4), we are told that width is (x+4) so the length is:
(x-4)
Answer:
C 24 ft wide, 18 ft deep
Step-by-step explanation:
there are 4 (2) in 8, so 4 x 6 = 24
there are 3(2) in 6, so 3 x 6 = 18
The larger scale drawing will be 24ft x 18 ft
Answer:
122,850 yd³
Step-by-step explanation:
The polyhedron is a right triangle prism
Area of the right triangle prism = ½*a*c*h
a = 91 yd
c = 60 yd
h = 45 yd
Volume = ½*91*60*45
= 122,850 yd³
