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stellarik [79]
3 years ago
9

What is the answer to 9x + 10 = -8

Mathematics
2 answers:
Bess [88]3 years ago
8 0
Answer: the answer should be x=-2
Kryger [21]3 years ago
8 0

Answer:

x = -2

Step-by-step explanation:

9x+10=-8~(Given)\\\\9x+10-10=-8-10~(Subtract~10~on~both~sides)\\\\9x=-18~(Simplify)\\\\\frac{9x}{9}=\frac{-18}{9}~(Divide~9~on~both~sides)\\\\x=-2~(Simplify)

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Multiply and give the answer in scientific notation: (2.3 x 10-3)(3 x 108) A) 6.9 x 105 B) 6.9 x 1011 C) 6.9 x 10-5 D) 6.9 x 102
Furkat [3]

Answer: A) is the right answer. 6.9\times10^{5}


Step-by-step explanation:

Given product : 2.3\times10^{-3}\times3\times10^8

To multiply above expression, first we need to combine like terms and then we need to use the law of exponents.

2.3\times3\times10^{-3}\times10^8\\=(2.3\times3)\times(10^{-3}\times10^8)\\=6.9\times10^{-3+8}......[\text{by law of exponents }a^n\cdot\ a^m=a^{m+n}]\\=6.9\times10^{5}

Thus, the answer is 6.9\times10^{5}.


8 0
3 years ago
What percentage describes the probability of an impossible event
stich3 [128]
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7 0
3 years ago
If |x| = 2 does X = 2 or x = -2? What is the solution to x = -2?
Effectus [21]
Both solutions are x<span> = 2 and x = -2 are correct

because
</span>when x = 2 ,  |2| = 2
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7 0
3 years ago
4. Julie saw 3 eagles each day she went bird-watching. How<br> many eagles did Julie see in 6 days?
Umnica [9.8K]

9514 1404 393

Answer:

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Step-by-step explanation:

Assuming Julie went bird-watching on each of those 6 days, she saw a total of ...

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