3 years ago

If f(x)= (2x)^2, find f(-4)

Mathematics

1 answer:

galina1969 [7]3 years ago

8 0

Answer:

f(-4)=16

Step-by-step explanation:

substitute x for -4

f(x)=(2x)^2

f(-4)=(2*-2)^2

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

f(-4)=16

You might be interested in

Answer please 7e^x=343

BartSMP [9]

Answer:

Step-by-step explanation:

7e^x=343

/7 /7

e^x=49

By trial and error, x must be between 3 and 4, but closer to 4.

Further trial and error says x must be between 3.8 and 3.9, but closer to 3.9

Another trial and error says x must be between 3.89 and 3.9.

The closest answer I got was 3.891821

4 0

3 years ago

HELLLLPPPPPPPP PLEASEEEEEEEEE

tatyana61 [14]

Answer:

10.5

Step-by-step explanation:

$KET\cong KIT...... (given)$

$\therefore KE \cong KI.... (csct)$

$\therefore m(KE) =m(KI)$

$\therefore 10x-34= 4x + 29$

$\therefore 10x-4x= 34 + 29$

$\therefore 6x= 63$

$\therefore x=\frac{63}{6}$

$\therefore x=10.5$

4 0

3 years ago

Perform the indicated operation. <br> 5/a - 3/b + 1/ab

MAVERICK [17]

The answer is 5b-3a+1/ab!

8 0

3 years ago

Read 2 more answers

Margaret asked her classmates how many pets they own. The responses are recorded in the table.

ad-work [718]

16/23 would be the answer

5 0

3 years ago

A pole that is 3.5 m tall casts a shadow that is 1.42 m long. At the same time, a nearby building casts a shadow that is 42.25 m

den301095 [7]

50 m tall is the final answer

6 0

3 years ago