Step-by-step explanation:
18.
4(c+5)-f⁴
4(-1+5)-4⁴
4(4)-4⁴
16-256
-240
19.
-3[(w-6)²+x]²
-3[(5-6)²+6]²
-3[-1²+6]²
-3[1+6]²
-3[7]²
-3(49)
-147
20.
3.5[h³-(3j/6)²]
3.5[3³-(3*-4/6)²]
3.5[27-(-12/6)²]
3.5[27-(-2)²]
3.5[27-4]
3.5[23]
80.5
21.
x[y²-(55-y^5)÷3]
-6[6²-(55-6^5)÷3]
-6[36-(55-7776)÷3]
-6[36+7721÷3]
-6[7757÷3]
-6[2585.66]
-15513.96
Answer:
look at the pictures
Step-by-step explanation:
HOPE THIS helps
Answer:
0.512a³ cubic units
Step-by-step explanation:
Given a cube of length, a, then when decreased by 20%, what's left is actually 80% of the original. So, for this case, we have a cube with a length of 80%(a) = 0.80a.
Now, to compute for the volume of a cube, we multiply the length three times to itself. Or, in other words, raise the length to the third power. That means the volume of the new cube is (0.8a)³ = 0.512a³ cubic units.
Using the formula of P(1 + r)^n = x where p represents the initial value, r represents the rate and n represents the number of years and x is our final output. We want to find P so we have to make it the subject of the equation.
1 + 0.04 = 1.04
1.04^18 = 2.025816515
Then divide the total amount by this to get 185,110.5454
Therefore the answer is $185,110.55
Hope this helps! :)
Answer:
B ($9.78)
Step-by-step explanation:
