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3 years ago

If y=1/2x-2 determine the value of y when x=-12

Mathematics

2 answers:

Amanda [17]3 years ago

7 0

Answer:

-8

Step-by-step explanation:

first you substitute x for -12:

y=1/2(-12)-2 which simplifies to

y=-6-2 so

y=-8

vfiekz [6]3 years ago

4 0

Answer:

y = -8

Step-by-step explanation:

Step 1: Plug in -12 for x

y = 1/2x - 2

y = 1/2(-12) - 2

y = -6 - 2

y = -8

Answer: y = -8

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The number of apples in a box decreased from 150 to 135. What is the percent decrease of the number of apples in the box?

goblinko [34]

Answer:

10% decrease

Step-by-step explanation:

The formula for percent change is:

$\frac{\textrm{New}-\textrm{Old}}{\textrm{Old}} \times 100$

Therefore, for this example:

$\frac{\textrm{New}-\textrm{Old}}{\textrm{Old}} \times 100=\frac{135-150}{150} \times 100=-10\%$

The negative value indicates that the change was a decrease. Therefore, there was a 10% decrease.

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3 years ago

How is the series 8 + 14 + 20+ ... + 296 represented in summation notation?

drek231 [11]

Answer: 26

Step-by-step explanation:

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2 years ago

Read 2 more answers

$10,000 is invested at two different rates. $2,500 is invested at 4%, and the rest is invested at 5%. How much interest is earne

worty [1.4K]

I'm assuming this is a yearly interest.

2500*.04=100
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so that would be $475 earned from interest

3 0

3 years ago

Please explain your answer as well, THANKS!!!

dusya [7]

Answer:

11,232,000

Step-by-step explanation:

The key to this problem is knowing "repetition is NOT ALLOWED".

For the first 3 letters slot:

For the 1st slot, we can pick any of the 26 alphabets

For the 2nd slot, we can pick any of the 25 remaining alphabets (since 1 is already taken)

For the 3rd slot, we can pick any of the 24 remaining letters (since 2 is already taken)

For the three digits slot:

For the 1st slot, we can pick any one of the 10 digits

For the 2nd slot, we can pick any one of the 9 digits left, since 1 is taken already

For the 3rd slot, we can pick any one of the 8 digits left, since 2 is already taken

The number of license plates, thus, would be all of these multiplied together:

26 * 25 * 24 * 10 * 9 * 8 = 11,232,000

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3 years ago

Assume that Emily (who has CF, a recessive disease (aa)) decides to have children with a man who does not have CF and who has no

alukav5142 [94]

Answer:100%. Probability

Step-by-step explanation:

Emily = aa

Man = AA

After crossing the two, the result wI'll be Aa, Aa, Aa, Aa

Since every result has a carrier(a) in it, makes it 100% probability.

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3 years ago