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trasher [3.6K]
3 years ago
6

Choose the answer that correctly express this number in scientific notation

Mathematics
1 answer:
yawa3891 [41]3 years ago
7 0
I think it's B sorry if it's wrong.
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PLEASEEE HELP -7a + 2b
Y_Kistochka [10]

Answer:

There are no like terms.

so its -7a+2b

Step-by-step explanation:

5 0
3 years ago
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Solve the system by substitution.<br> y = 5x<br> y = 9x + 4
SVEN [57.7K]

Answer:

(-1, -5)

Step-by-step explanation:

\left \{ {{y=5x} \atop {y=9x+4}} \right.

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

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And the answer is (-1, -5)

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3 years ago
Please help<br> x2 + 14x + 37 = 0
tatiyna

Answer:

x = −37/16

This is the value of x which completes the equation properly, unless you mean x^2 instead of x2.

6 0
3 years ago
Please help... I'm stuck on number 44 and I can't remember how to do it
Leona [35]
3(x+4)=9
3x+12=9
3x=-3
x=-1

Hope this helps :D
3 0
4 years ago
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Algebra help please?
bija089 [108]
A. because your x= 0, 1, and -5
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