3 years ago

Simplify this expression. -12 - 3 • (-8 +(-4)^2 - 6) + 2

Mathematics

1 answer:

Karolina [17]3 years ago

8 0

Answer

-16

Step By Step explanation

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Answer asap please!!

skad [1K]

Answer is B. 11. The square root is roughly 10.5, so you round up and get 11

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3 years ago

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damaskus [11]

The answer is C hope this can help

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3 years ago

Using the quadratic formula, what is the value of x for x^2-4+5=0

PSYCHO15rus [73]

value of x is: x= i and x= -i

Step-by-step explanation:

We need to find the value of x from $x^2-4+5=0$ using quadratic formula.

The term is: $x^2+1=0$

The quadratic formula is:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\$

Where a = 1, b=0,c=1

Putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{0\pm\sqrt{(0)^2-4(1)(1)}}{2(1)}\\x=\frac{\pm\sqrt{-4}}{2}\\x=\frac{\pm2i}{2}\\x=\pm i$

So, value of x is: x= i and x= -i

Keywords: Quadratic formula

Learn more about quadratic formula at:

#learnwithBrainly

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3 years ago

A ball is shot straight up into the air from the ground with initial velocity of 45ft/sec. Assuming that the air resistance can

Nesterboy [21]

V2^2 = V1^2 - 2gh

=> 0 = 44^2 - 2 (32.2) h 

=> h = 44^2 / 64.4 = 30.062 ft

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3 years ago

5x 3. + 4x2-9 2x+1 2x2+x-3

irakobra [83]

Answer:

~Re-write the equation~

SOLVE:

5x(3)+4x (2-9)+(2x+1)+(2x2+x-3)

5(1)(3)=15

4(2-9)=8+36=44

2x+1=3

2x2+x-3:4(1)-3=1

15+44+3+1

ANSWER=63x

Step-by-step explanation:

I wasn't quite sure because of the way you wrote it but here's an answer!

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2 years ago