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4 years ago

Simplify this expression 9+3x2

Mathematics

1 answer:

Len [333]4 years ago

8 0

9+3x^2

It's technically already in simplest form, except you usually put x first

=3x^2+9

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If g (x) = 3x²-4, then find g (-3)

Semenov [28]

Answer:

g(-3) = 23

Step-by-step explanation:

This question is telling us that x = -3. Knowing this, we can plug x into the equation and solve to find g(-3).

$g(-3) = 3(-3)^{2} -4$

$g(-3) =3(9)-4$ Square -3 to get 9

$g(-3) = 27-4$ Multiply 9 by 3 to get 27

$g(-3) = 23$ Subtract 4 from 27 to get 23

Thus, g(-3) is equal to 23.

I hope this helps! Good luck!

6 0

2 years ago

Trains Two trains, Train A and Train B, weigh a total of 300 tons. Train Ais heavier than Train B. The difference of their weigh

Leona [35]

Train A = 214

Train B = 86

Hope I helped!!! ^^

_______________

列車A = 214

列車B = 86

私が助けてくれたらいいのに！^ ^

3 0

3 years ago

Which angle measures create a triangle with three different side lengths?

Contact [7]

The 3 angles of a triangle add up to 180 degrees. If all 3 sides are different in length then the angles are also different.

Its choice 1

4 0

3 years ago

Geometry // help with this pleaseeee ASAP

babunello [35]

Answer:

A:SPA =CFA by AA

Step-by-step explanation:

Hopefully this helps

6 0

3 years ago

Help Sjsjjjsjajajahjajaja

motikmotik

Answer:

Step-by-step explanation:

${5}^{2} + {x}^{2} = {7}^{2} \\ 25 + {x}^{2} = 49 \\ {x}^{2} = 49 - 25 \\ {x}^{2} = 24 \\ x = \sqrt{24}$

have a nice day

6 0

3 years ago