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Marina CMI [18]

3 years ago

5

How many solutions can be found for the equation 4z + 2(z - 4) = 3z + 11

2 answers:

Novosadov [1.4K]3 years ago

5 0

Answer:

one

Step-by-step explanation:

i just took the test

Gnom [1K]3 years ago

4 0

4z+2(z-4)=3z+11 perform indicated multiplication on left side

4z+2z-8=3z+11 combine like terms on left side

6z/-8=3z+11 add 8 to both sides

6z=3z+19 subtract 3z from both sides

3z=19 divide both sides by 3

z=19/3

z=6 1/3

So there is only one solution when z=6 1/3

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2 years ago

A bag contains 2 red, 5 blue, and 3 green marbles. A marble is chosen at random. What is the probability of NOT choosing a red m

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Step-by-step explanation:

Number of red = 2
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<u>Because</u><u> </u><u>probability</u><u> </u><u>is</u><u> </u><u>always</u><u> </u><u>one</u><u>(</u><u>1</u><u>)</u><u>.</u>

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1 year ago

What is X squared +3x-70

Aleksandr-060686 [28]

Answer:

x = 7, x = -10

Step-by-step explanation:

$x^2+3x-70 = 0$

Use the quadratic formula.

$x = \frac{-3 + \sqrt{3^2-4(1)(-70)} }{2(1)} \\x = \frac{-3 - \sqrt{3^2-4(1)(-70)} }{2(1)} \\$

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You can also factor if you want - that is a faster method.

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Step-by-step explanation:

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51% is the acceptance rate.

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2 years ago

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