Hi, it is very simples.
Look :
2a - 9 = -85
Pass the term -9 to the left side of equation, but changing the sinal
2a = -85 + 9
Sum -85 +9 = -76
Then,
2a = -76
Nos, pass the 2 dividing -76
a = -76 ÷ 2
a = - 38
This is the answer to the yours question
Answer: C. Reasonable. The estimate sooms a little higher compared to the actual answer
Step-by-step explanation:
The actual answer to 359+558 is 917. On the other hand, 359 to the nearest ten is 360 while 558 to the nearest ten is 560. The addition of the numbers will be: = 360 + 560 = 920
The estimated answer is 920 while the actual number is 917. Therefore, the estimate is reasonable as the estimate sooms a little higher compared to the actual answer.
Answer:
Step-by-step explanation:
f(x) = 2(x − 1)² + 3
= 2 ( x² - 2x +1) +3
= 2x² - 4x +2 +3
f(x) = 2x² − 4x + 5 .....standard form.
Answer:
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