All categories

3 years ago

If f(x)=2x^2+1,what is f(x) when x=3

Mathematics

1 answer:

REY [17]3 years ago

4 0

Answer:

f(3) =19

Step-by-step explanation:

f(x)=2x^2+1

Let x = 3

f(3) = 2(3)^2 +1

Exponents first

=2(9) +1

Then multiply

=18+1

=19

You might be interested in

Solve this expression 8÷2*5+(6-4)

Annette [7]

Value of expression $\frac{8}{2}(5) + (6-4)$ is 22 .

Step-by-step explanation:

Here we have the following expression to solve :

8÷2*5+(6-4)

⇒ $(8/2)*5 + (6-4)$

⇒ $\frac{8}{2}(5) + (6-4)$

But 8 = 4(2) , So

⇒ $\frac{4(2)}{2}(5) + (6-4)$

⇒ $4(5) + (6-4)$

⇒ $20 + (6-4)$

⇒ $20 + 2$

⇒ $22$

Therefore, Value of expression $\frac{8}{2}(5) + (6-4)$ is 22 .

6 0

3 years ago

Find the missing side length.

LekaFEV [45]

I don’t know how those answers exist but the correct answer here is 10, 16-6 = 10 yds.

6 0

2 years ago

A- 13 B- 26 C- 52 D- there is not enough information

Yakvenalex [24]

Answer: the anwser is A. 13

7 0

3 years ago

A repair bill for a car is $648.45. The parts cost $265.95. The labor cost is $85 per hour. Write and solve an equation to find

zysi [14]

Answer:

( t - p ) / 85x = h

( t - 265.95 ) / 85x = h

648.45 - 265.95 / 85x = 3.32h

h = 3.32

Therefore ( t - p ) / 85x = 3.32

Step-by-step explanation:

648.45 - 265.95

282.50 /85

= 3.32 hrs

Finding equation to find hours can be shown as

( t - p ) / 85x = 3.32

How we found equation to find total

Parts = 19 x 14 - 5/100 = 266- 0.05

648.45 - 265.95 = 282.5

282.5/85 = 3.323 near to 3,233529

Labour = 85x = 17 (5 + x)

Equation = 17(5+ x) + 14(19) - 5/100 = 648.45 where x = 85

Equation = ( 85x x 3 1/3) + 265 - 19/20 = t

3 0

2 years ago

gavin's unpaid credit card balance is $2103.23 his APR is 14.4% what is his new balance if he made one new transaction for $390?

Tema [17]

Ummmmmmm let me think it 3765

5 0

3 years ago