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4 years ago

What is -x^2 if x=-2

Mathematics

2 answers:

maksim [4K]4 years ago

8 0

4. You substitute the x with -2, which means the problem is -(-2^2).

yanalaym [24]4 years ago

4 0

Answer:

-4

Step-by-step explanation:

plug in -2

-(-2)^2 = -4

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on the first of january 2014, carol invested some money in a bank account. The account pays 2.5% interest per year. On the first

almond37 [142]

Answer: £23,360

Step-by-step explanation:

You can use algebra to solve this.

Assume that the original investment is x.

In the beginning of 2015 the balance had increased by 2.5% which is denoted as:

= 1.025x

Carol then withdrew a thousand:

= 1.025x - 1,000

This value then increased by 2.5% again by the beginning of 2016:

= 1.025 * (1.025x - 1,000)

Relevant expression therefore is:

1.025 *(1.025x - 1,000) = 23,517.60

1.025x - 1,000 = 23,517.60/1.025

1.025x = ‭22,944‬ + 1,000

x = 23,944/1.025

x = £23,360

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3 years ago

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vichka [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

The domain of an exponential function is _______

Pie

$\bold{Heya}$ ~

Your answer will be is :

$\large{ \green{ \bold{ \underline{ \underline{ \overline{ \overline{ \red{All \: Real \: Numbers \:.}}}}}}}$

$\large{ \green{ \bold{ \underline{ \underline{ \overline{ \overline{ \red{Possible \: Real \: Numbers \:.}}}}}}}$

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And, also Happy The New Year !

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3 years ago

-4 × 7 with an absolute value is?

Sergeeva-Olga [200]

Your answer is 28.

If the equation is in an absolute value, you do the operation like normal and then take the positive version of the number because an absolute value is just how far on a number line the number is from zero and distance cannot be measure in negative numbers.

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4 years ago

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BaLLatris [955]

Answer:

136°

Step-by-step explanation:

Look at the attached paper for the steps.

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2 years ago

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