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3 years ago

If f(x) = 2х2 +1, what is f(x) when x = 3? оооо 19

Mathematics

1 answer:

jeka57 [31]3 years ago

7 0

Answer:

f(3) = 19

Step-by-step explanation:

Step 1: Define

f(x) = 2x² + 1

x = 3

Step 2: Substitute and Evaluate

f(3) = 2(3)² + 1

f(3) = 2(9) + 1

f(3) = 18 + 1

f(3) = 19

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Evaluate the following expression for x=-2 -4x+8+2x+3

sergiy2304 [10]

Answer:

Step-by-step explanation:

x = 2

-4x+8+2x+3 = ?

-4 (-2) + 8 + 2 (-2) + 3 =

= 8 + 8 - 4 + 3

= 16 - 4 + 3

= 12 + 3

= 15

hopefully this helped you :)

8 0

3 years ago

How many days will it take for a sum of $4,000 to earn $80 interest if it is deposited in a bank paying ordinary simple interest

Maksim231197 [3]

Answer:

It will take 146 days to earn an interest of $80.

Step-by-step explanation:

The simple interest formula is:

$I=\frac{P\times r\times t}{100}$

It is provided that:

I = $80

P = $4,000

r = 5% p.a.

Compute the time required as follows:

$I=\frac{P\times r\times t}{100}$

$t=\frac{I\times 100}{P\times r}$

$=\frac{80\times 100}{4000\times 5}\\\\=0.4\ \years\\\\=0.4\times 365\ days\\\\=146\ days$

Thus, it will take 146 days to earn an interest of $80.

4 0

2 years ago

Is it the one I have selected or the bottom one? I feel like a trick question

dangina [55]

Answer:

Step-by-step explanation:

It's number 5 if A player a value their piece as 25%, than player B will to because it was divide fair.

and number 3 player A must value their piece as exactly 25%

6 0

3 years ago

Need help plsssssss :(

ahrayia [7]

Supplementary angle must add up to 180 so the supplement will be 108 degrees. 180-72=108.

5 0

3 years ago

HELP RIGHT AWAY THANK YOU

Tems11 [23]

Answer:

$b^{6}$

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers