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Svetllana [295]

2 years ago

7

You took a 5-question multiple choice quiz with 4 choices for each question. If you guess at random on each question, what is th

e probability that you get at least one question correct?

1 answer:

Arturiano [62]2 years ago

5 0

Answer:

80%

Step-by-step explanation:

4/5=80% chance of getting one correct

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lorasvet [3.4K]

Answer:

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Step-by-step explanation:

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2 years ago

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Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4 given the same value of y?

liq [111]

Answer:

C

Step-by-step explanation:

Since y will have same value, y doesn't really matter. Thus,

We can solve for y in the 2nd equation as:

-3x - y = 4

-3x - 4 = y

Now we can plug it into the first and solve for x:

-9x + 4y = 8

-9x + 4(-3x - 4) = 8

-9x - 12x - 16 = 8

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Correct answer is C.

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2 years ago

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Using this data, how many plots would be found on 6 and 1/2?

galben [10]

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Step-by-step explanation:

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2 years ago

Make g the subject of the formula in w = 7 - sqrt g

sukhopar [10]

Answer: g = w² - 14w + 49

$w=7-\sqrt{g}\\\\=> \sqrt{g} =7-w \\\\g=(7-w)^{2}=49-14w+w^{2}$

Step-by-step explanation:

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2 years ago

Simplify this equation for a line (y+1)=2(x+5) Give your answer in the form Y=_x+_

Fantom [35]

I'm pretty sure it would be y=2x+9

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2 years ago