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3 years ago

Which product is negative?

Mathematics

1 answer:

larisa [96]3 years ago

6 0

B because the multiplication has different signs

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Could someone help me? Why does x^4 * x^-4 = 1?

Alika [10]

Answer:

Step-by-step explanation:

when you have a negative exponent, you are going to have a fraction. Example: 2^4 * 2^-4= 2^4 is 16 2^-4 is 1/16.

You get the 16 but because it was a negative exponent, the 16 goes on the bottom. 16 as a fraction is 16/1.

When you multiply 16/1 and 1/16. It comes up to 16/16 or 1.

Does this help?

7 0

3 years ago

Read 2 more answers

Given the function f(x) = -2x2 + 4x - 7, find f(-4). -55 -7 25

Neko [114]

Answer:

f(-4)= -55

Step-by-step explanation:

We want to find f(x), or y, when x is equal to -4.

Therefore, we can substitute -4 in for x in the function.

f(x) = -2x^2 + 4x - 7

Substitute -4 in for x

f(-4) = -2(-4^2) + 4(-4) - 7

Evaluate the exponent

f(-4)=-2(16)+4(-4)-7

Multiply -2 and 16

f(-4)= -32+4(-4)-7

Multiply 4 and -4

f(-4)=-32-16-7

Subtract

f(-4)=-55

7 0

3 years ago

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To rent a jet ski the Delta Water company charges a flat fee of $25 plus $7.50 per hour. If you rented a jet ski for a day of fu

Aleksandr [31]

You were using it for 6 hours because 70-25 is 45 and if you divide 7.50 and hour and 45 it’s 6

5 0

3 years ago

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PLEASE ANSWER ASAP !!!!!

tester [92]

Answer:

Domain:

3,6,12,18

Range:

5,7,9,10

Not a function

Step-by-step explanation:

X= Domain

Y= Range

The input 6 is pared with both 5 and 10

7 0

3 years ago

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Madison received a share of $4230 for a fishing competition. She deposited it in the bank and left it for 3 years accumulating s

Elis [28]

Answer:

$4785.68

Step-by-step explanation:

Original amount: $4230

Interest for 1 year: 4.2%

First year;

$4230 + (4230 \times \frac{4.2}{100}) \\ = 4230 + 177.66 \\ = 4407.66$

Second year;

$4407.66 + (4407.66 \times \frac{4.2}{100} ) \\ = 4407.66 + 185.12172 \\ = 4592.78172$

Third year (total balance after 3 years);

$4592.78172 + (4592.78172 \times \frac{4.2}{100} ) \\ = 4592.78172 + 192.89683224 \\ =4785.67855224$

Round the number;

$4785.68

YOUR ANSWER hope this helps :))

6 0

3 years ago

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