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soldier1979 [14.2K]
3 years ago
15

How do this equation????

Mathematics
2 answers:
Pepsi [2]3 years ago
8 0
So what you do is you circle 7m -15 8m +20 and -m then you combine like terms which is 7m, 8m -m. -m has a -1 in front so you do 7 + 8 -1 which equals. 14 so then you combine -15 and 20 so -15 + 20 equals 35 so m= 35 hope this helps :)
Phoenix [80]3 years ago
5 0
I believe this should help. :)

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Damm [24]

Answer: Choice D.  6.44 \times 10^{-4}

========================================================

Work Shown:

We multiply the coefficients 9.2 and 7 to get 64.4, which is the same as 6.44*10^1 in scientific notation. When multiplying exponential expressions with the same base, we add the exponents

This is what the steps could look like

\left(9.2 \times 10^{-9}\right)\times\left(7 \times 10^{4}\right)\\\\\left(9.2\times7\right)\times\left(10^{-9} \times 10^{4}\right)\\\\\left(64.4\right)\times\left(10^{-9+4}\right)\\\\\left(6.44\times 10^{1}\right)\times\left(10^{-5}\right)\\\\6.44\times\left(10^{1}\times 10^{-5}\right)\\\\6.44\times\left(10^{1+(-5)}\right)\\\\6.44\times 10^{-4}\\\\

The final result is in scientific notation as the coefficient c is restricted such that 0 \le c < 10

7 0
3 years ago
Solve : sin 3x + cos 3x=0​
klemol [59]

sin(3)+cos(3)sin(3)tan(3)3=0=−cos(3)=−1=−4+,∈ℤ=−12+3
sin⁡(3x)+cos⁡(3x) =0 sin⁡(3x) =−cos⁡(3x) tan⁡(3x) =−1 3x =−
π
4
+kπ,k∈
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Since −<<
−
π
<
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<
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−
2
≤
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≤
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. Thus, the solution set is
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4 0
3 years ago
A smoothie recipe calls for 1/3 cup yogurt for each smoothie. How many cups of yogurt are needed to make 7 smoothies?
KonstantinChe [14]
U do 1/3 x 7/1 which then u do 1 x 7 which is 7 then do 3 x 1 which is 3 so it is 7/3
6 0
4 years ago
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olganol [36]
13 across and 3 down
4 0
4 years ago
A car went 64 miles on 2 gallons of gas in the morning, 16 miles on 1/2 gallon of gas at noon, and 32 miles on 1 gallon of gas a
Marina86 [1]

Answer:

Yes,

Step-by-step explanation:

You take 64 miles for 2 gallons and divide it by 2. And it leads up to 32 miles and 1 gallon. Now you divide that by 2 again and get 16 miles and 1/2 gallon. So, to check that you can take 16+16 and you get 32 and take 32+32 and you get 64.

7 0
3 years ago
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