Answer:
F(-3)=12
F(2)=7
F(0)=3
F(5)=28
Step-by-step explanation:
-3×2= -6
-6-27= -33
so if we peak option B.
(-3x +91)(x+31)
solving it
-3x (x+31)+91(x+31)
-3x^2 -93x +91x +2821
we will take (-93x+91x)= -2x
so it's going to be
-3x^2 -2x +2821
this is a quadratic equation hence
2+/-√-2^2-(4×-3×2821)divided by 2×-3
2+/-√4+33852divide by -6
2+/-√33856 divide by -6
2+/- 184 divided by -6
2+/- 30.67
when you add you'll get
32.67
round it off and you get 33
which is the same as what we got at the top
so expression B is the same as
-3×2-27 which is 33
Answer:
Step-by-step explanation:
At = 2*(h×w + h×l + w×l)
= 2*(4.8×3.1 + 4.8×7.2 + 3.1×7.2)
= 2*(14.88 + 34.56 + 22.32)
= 2*71.76
= 143.52 cm²
Answer:
The cube root would be 9. Cubed is just like squared, but a number multiplied 3 times to get the number 729.
Step-by-step explanation:
A way to solve it is:
729 / 3 = 243
243 / 3 = 81
81 / 3 = 27
27 / 3 = 9
9^3 = 729
9 • 9 = 81
81 • 9 = 729
1) simplify 2^3 to 8
8+3^2-10
2) simplify 3^2 to 9
8+9-10
3) simplify 8+9 to 17
17-10
4) simplify
7
Answer: 7