3 years ago

How do I do this, I need to show work

Mathematics

1 answer:

kenny6666 [7]3 years ago

3 0

Hello,

-2<1 ==> f(x)=3x²-1 =>f(-2)=3*(-2)²-1=3*4-1=12-1=11

You might be interested in

Help pls √-4 - √-25 Express complex numbers in terms of i

kow [346]

$i=\sqrt{-1}\\\\\sqrt{-4}=\sqrt{(4)(-1)}=\sqrt4\cdot\sqrt{-1}=2i\\\\\sqrt{-25}=\sqrt{(25)(-1)}=\sqrt{25}\cdot\sqrt{-1}=5i\\\\\sqrt{-4}-\sqrt{-25}=2i-5i=-3i$

5 0

2 years ago

Read 2 more answers

Which expression is NOT an expression equivalent to (32) (2) (33)? Select all that apply.

max2010maxim [7]

I think is OB, I’m not too sure tho

7 0

3 years ago

The sales tax on $350 is 22.75 find the sales tax rate

bogdanovich [222]

To find the tax rate when given the initial price of an object and the final tax value, you use the equation: $350 * X = $22.75 (where X is the sales tax rate). Then solve:
$22.75/$350 = .065

So the rate is 6.5%

3 0

3 years ago

Help!!!!!!!!!!!!!!!!!

Anna [14]

Pt=6.245cm, working shown in photo

5 0

3 years ago

I bought 6 packs of gummy bears. There were 25 gummy bears in each bag and 20% were yellow. Another 10% were white. How many mor

Vinvika [58]

Answer:

15 (I think)

Step-by-step explanation

6 x 25 = 150

20% of 150 = 30

10% of 150 = 15

30 - 15 = 15

Sorry if this is wrong.

Bye, have a great day/night.

3 0

2 years ago

Read 2 more answers