Answer:
B. 2,433,400 m^3
Step-by-step explanation:
V = (1/3)Bh
where B = area of the base of the pyramid, and
h = height of the pyramid
B = s^2 = (230 m)^2
h = 138 m
V = (1/3)(230 m)^2(138 m)
V = 2,433,400 m^3
Let s represent the length of any one side of the original square. The longer side of the resulting rectangle is s + 9 and the shorter side s - 2.
The area of this rectangle is (s+9)(s-2) = 60 in^2.
This is a quadratic equation and can be solved using various methods. Let's rewrite this equation in standard form: s^2 + 7s - 18 = 60, or:
s^2 + 7s - 78 = 0. This factors as follows: (s+13)(s-6)=0, so that s = -13 and s= 6. Discard s = -13, since the side length cannot be negative. Then s = 6, and the area of the original square was 36 in^2.
Answer:
Step-by-step explanation:
Answer:
b=7/33 c= 14/33
Step-by-step explanation:
Repeat all 21 they are repeating decimals
for b its 100x-x=21.21 repeating the 21 -0.21 repeating the 21 = 100x-1x=(21+0.21)-0.21= (100-1)x=21+0.21-0.21 [ stop repeating the 21's up to here] and 99x=21+0 = 99x=21 = 99x/99=21/99 both 99's cancel leaving 3x7 divided by 3x33 = x= cancel both 3's leaving 7 over 33 This should help you learn to solve c good luck
First lets subract 1.2 from each side to get
2.3x+2.5x=8-4.3x
Then Combine like terms to get
4.8x+8-4.3x
Then add 4.3 to each side
9.1x=8
x equals about 0.88