2 years ago

If (x)= 2x square minus 1,then f(-3)

Mathematics

2 answers:

viva [34]2 years ago

4 0

Answer:

17.

Step-by-step explanation:

f(x) = 2x^2 - 1

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

= 2 * 9 - 1

= 18 - 1

= 17

Hope this helps!

krok68 [10]2 years ago

4 0

Hope it will help u....

You might be interested in

PLEASE HELP ME ASAP NEED IN FIVE MIN. PLEASE NO LINKS OR FILES. I WILL MARK BRIANYLEST AND I AM GIVEING 10 EXTRA PIONTS AS WELL.

grigory [225]

Answer:

Mode :))))))))))))))))))))

Step-by-step explanation:

7 0

2 years ago

To download movies off the Internet you must pay $1.99 per movie plus a one time fee of $5.50 write an expression to show the to

MrRissso [65]

1.99<span>x + 5.50 = Total cost</span>

4 0

3 years ago

Find the surface area of each figure round your answers to the nearest hundredth if necessary

Wewaii [24]

Answer: 410 square km

Step-by-step explanation:

The area of each of the triangles with their base on the 10 km side is $A=\frac{1}{2}(10)(13.4)$ , so their combined area is $(10)(13.4)=134$ .

The area of each of the triangles with their base on the 12 km side is $\frac{1}{2}(12)(13)$ , so their combined area is $(12)(13)=156$ .

The area of the bottom rectangular face is $10(12)=120$ .

So, the total surface area is $120+156+134=\boxed{410 \text{ km}^{2}}$

3 0

1 year ago

What is the range of f(x) = 3x + 9?

11Alexandr11 [23.1K]

There is no restriction upon the domain, the x values, and is all real numbers or (-oo,+oo)

From such it is clear that the domain also contains all real numbers.

The range of f(x) is (-oo,+oo)

8 0

2 years ago

It’s urgent please help

Inessa [10]

Answer:

domain is always the x values and y values are the range of x.

It's option A

5 0

3 years ago