3 years ago

If f(x) = 7x^2 -4, find f(2)

Mathematics

2 answers:

pogonyaev3 years ago

7 0

Step-by-step explanation:

f(x)= 7x²-4

f(2)= 7(2)²-4

= 7(4)-4

=28-4

=24

liberstina [14]3 years ago

4 0

Answer:

f(2)= 7 x^2 -4

7 x 4= 28 - 4= 24

anwer: 24

Step-by-step explanation:

I hope this help you.

You might be interested in

GIVING 100 POINTS FOR THESE 3 PROBLEMS

mart [117]

Answer:

Step-by-step explanation:

$A=\frac{a+b}{2}*h=\frac{4+7}{2}*3=16.5cm^2$

$A=\frac{ab}{2} =\frac{4*6}{2} =12in^2$

$A=wl=6*5=30in^2$

$12+30=42in^2$

$A=\frac{a+b}{2}h=\frac{28+40}{2}*30=1020ft^2$

Wall = A= $\frac{ab}{2} =\frac{6*30}{2}=90ft^2$

6 0

3 years ago

Read 2 more answers

Find the value of x. The figure is not drawn to scale.

mr_godi [17]

Answer:

The answer is 22.2

Step-by-step explanation:

the outer angles always equal 360, so all of those added together should equal 360, and when you sole the equation, you get 22.2

4 0

4 years ago

Solve the system of equations.<br> 5y – 4c = -7<br> 2y + 4x = 14

Lesechka [4]

$c=\frac{5y}{4\\} + \frac{7}{4\\}$

$x=-\frac{y}{2} + \frac{7}{2}$

Step-by-step explanation:

if 'c' is meant to be another 'x' the answer is

(3, 1)

x = 3,y = 1

4 0

3 years ago

When a metallic ball bearing is placed inside a cylindrical container, of radius 2 cm, the height of the water, inside the conta

Elan Coil [88]

It will be 1.2 cm,......

7 0

4 years ago

Given 9______

34kurt

7____ is the one that couldn't used to complete a table of eqiuvalent ratios

7 0

3 years ago

Read 2 more answers