Step-by-step explanation:
3(4 *to the power of 2* - 3*to the power of 2*)
24-23 x 3
3*to the power of 3* - 3*to the power of 2
(6*to the power of 2* - 3) (9*to the power of 2* - 70)
- (6²-3)(9²-70)
- (36-3)(81-70)
- (33)(11)
- 363
Hence, Option d. is the correct answer because it gives answer 3 when it is solved.
Answer:
63/64
Step-by-step explanation:
cross multiplication
7*9=63
8*8= 64
Answer:
B or D
Step-by-step explanation:
best bet is B
Answer:
10x + 12 and 6x² + 11x - 7
Step-by-step explanation:
The perimeter (P) of a rectangle is calculated as
P = 2l + 2w ( l is length and w is width )
= 2(2x - 1) + 2(3x + 7) ← distribute parenthesis
= 4x - 2 + 6x + 14 ← collect like terms
= 10x + 12
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The area (A) of a rectangle is calculated as
A = lw
= (2x - 1)(3x + 7) ← expand using FOIL
= 6x² + 14x - 3x - 7 ← collect like terms
= 6x² + 11x - 7
