2 years ago

F(x)=3x²+4x-1evaluate f(-2)

Mathematics

1 answer:

gtnhenbr [62]2 years ago

6 0

Answer:

Step-by-step explanation:

f(-2) = 3(-2)^2 + 4(-2) - 1

= 12 - 8 - 1

= 3.

You might be interested in

X^lg(x)=100^x find x

Wittaler [7]

$x^lg(x)=100^x$

$X^lg(x)=100^x:x$ $|Solve \ for \ x|$

$|Use \ logarithms \ of \ both \ sides \ of \ the \ base \ 10|

$

$lg (x ^ lg (x)) = lg (100x)

$

$lg ^ 2 (x) = 2 + lgx$

$lg 2 ^ x-lg x -2 = 0$

$lg x = 2 x = 100$

$lg x = -1 x = \dfrac{1}{10} = 0.1$

3 0

2 years ago

A car has four wheels. How many wheels are there for twelve cars?

Kryger [21]

Answer:

4x12=48

Step-by-step explanation:

1 car=4 wheels

12cars= 48 wheels

5 0

1 year ago

Can you please help really, please?

Tanya [424]

For lesson 4 10^15/10^4= 10^11 because when you are dividing with exponents you have to subtract the bottom exponent with the top one so 15-4=11; 10^15/10^4=10^11

4 0

2 years ago

Read 2 more answers

Metric mania How many shoes would it take to make 1 kilometer

Lady_Fox [76]

Answer:

Well since my shoe is 8.5 inches, you will take 4 whole shoes to make a meter. Therefore, you will have to take 4,000 shoes to make a kilometer because 1 kilometer=1000. (:

Step-by-step explanation:

4 0

2 years ago

The amount 6.40 is 4% of what price

lys-0071 [83]

Answer:

160

Step-by-step explanation:

6.4 = 0.04x

6.4 / .04 = 160

4 0

2 years ago

Read 2 more answers

F(x)=3x²+4x-1evaluate f(-2)​

F(x)=3x²+4x-1evaluate f(-2)