3 years ago

If f(x)=2x^2 +3x what is f(9)

Mathematics

1 answer:

Semmy [17]3 years ago

4 0

Answer:

f(9) = 189

Step-by-step explanation:

Plug 9 into x

f(9) = 2(9)^2 + 3(9)

f(9) = 2(81) + 27

f(9) = 162 + 27

Thus, f(9) = 189

You might be interested in

Please, help me, im really desperate for help.<br><br> Max answer choices is 3

steposvetlana [31]

Answer:

I would say A, B, D

Step-by-step explanation:

I am bad at this sorta stuff so i am very very sorry if its wrong!!! :(

5 0

2 years ago

A researcher observes the level of aggression of six 5-year-old boys over the course of a school day. The number of incidents fo

Elodia [21]

Answer:

$Mean = 7$

Step-by-step explanation:

Given

$Data: 2, 4, 6, 12, 8, 10.$

Required

Determine the mean

The mean of a data is calculated as thus:

$Mean = \frac{\sum x}{n}$

In this case:

$n = 6$

So, the formula becomes:

$Mean = \frac{2+4+6+12+8+10}{6}$

$Mean = \frac{42}{6}$

$Mean = 7$

3 0

2 years ago

Josie needs to rent a car from SureRide Car Rentals. The cost of renting a car iS a

telo118 [61]

Answer: y = 0.75x + 80

Step-by-step explanation:

let x = 1 mile

y = 0.75x + 80

5 0

2 years ago

Pls help will give brainliest

lana [24]

Answer: The answer is B

Step-by-step explanation: 122 >7 (z+8) -5 (6+z). Then switch them, 7 (z+8) -5 (6+z) <122. Expanded: 7 (z+8) -5 (6+z) <122:v 2z+26

2z+26<122, subtract 26 from both sides: 2z+26-26<122-26

Simplify: 2z<96, divide both sides by 2: 2z over 2 < 96 over 2

and finally simplified: Z<48

HOPE THIS HELPED YOU OUT!

IF NOT SORRY!

6 0

3 years ago

Identify the range of the following numbers 7 9 15

Deffense [45]

8 is your range, 15-7= 8.

7 0

3 years ago

Read 2 more answers