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Soloha48 [4]
3 years ago
12

How many places do you need to move the decimal to the right to write

Mathematics
1 answer:
GenaCL600 [577]3 years ago
6 0

Answer:

7 places.

Step-by-step explanation:

There are seven zeros, so in powers of ten notation it is written as 10^{-7}

2.1 \times 10^{-7}

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Which of the following is a factor of 2x2–7x–15?
zimovet [89]

Answer:

hello :  x - 5

Step-by-step explanation:

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5 0
3 years ago
PLS HELP
Charra [1.4K]

Answer:  -418, 728, 446, -429, 1159, -696

Step-by-step explanation:

1. n = -199 - 219 = \boxed{-418}.

2. m = 438 - (-290) = 438 + 290 = \boxed{728}.

3. 128 - (-318) = 128 + 318 = \boxed{446}.

4. The sum of 429 and 429 is 429+429 = 858. We need to subtract this from 429, so 429 - 858 = \boxed{-429}.

5. The sum of 510 and 319 is 510+319 = 829. Subtracting -330, we get 829 - (-330) = 829 + 330 = \boxed{1159}.

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4 0
2 years ago
If the average (arithmetic mean) of 2, 7, and x is 12, what is the value of x?
posledela

Answer:

27. (2+7+27=36 36÷3=12) 36=total of the three numbers, 3=Amount of numbers, 12=Average

5 0
3 years ago
HELP ASAP (1O BRAILY/POINTS FOR ANSWER)
shutvik [7]

Step-by-step explanation:

x + y = 3 ---------------- eqn 1

y = -6x + 3 ------------- eqn 2

Substitute y for -6x + 3 in equation 1

x + -6x + 3 = 3

x - 6x + 3 = 3

-5x + 3 = 3

Collect like terms

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Divide both sides by -5

x = 0

Hope this helped!

5 0
3 years ago
Read 2 more answers
What is 6x(13-6) =7 squared?
Novay_Z [31]
6 × (13 - 6) = 42, not 7, but 7² is 49 and 42² is 1,764.
I hope this helps!
4 0
3 years ago
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