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2 years ago

What are the zeros of the function f(x)=x^2-64

Mathematics

1 answer:

Arte-miy333 [17]2 years ago

3 0

Answer:

8 and -8

Step-by-step explanation:

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I dont understand this problem

Fiesta28 [93]

Answer:

D and F

Step-by-step explanation:

$x^{2}+4x+4=12$ can be rewritten as $x^{2} +4x-8=0$ .

From there you can use the quadratic formula $x=\frac{-b±\sqrt{b^{2}+4ac } }{2a}$ (ignore the A, I can‘t seem to remove it), where a=1, b=4, and c=-8.

$x=\frac{-4±\sqrt{4^{2}-4(1)(-8)} }{2(1)}$

Then you get $x=\frac{-4±\sqrt{16+32}}{2}$

Then you get $x=\frac{-4±\sqrt{48} }{2}$

So $x=-2±\frac{4\sqrt{3} }{2}$

Which means $x=-2+2\sqrt{3}$ or $-2-2\sqrt{3}$ which are choices D and F.

8 0

2 years ago

Helpppppppppppppppppppppppp

wariber [46]

Answer:

3.8 million lbs in tons is equivalent to 1900 pounds

Step-by-step explanation:

2000 lbs is equal to 1 ton so 3800000 divided by 2000 equals 1900.

8 0

2 years ago

Read 2 more answers

Simplify using the distributive property 4(7 - 2)

solmaris [256]

Answer:

28-8 is the answer simplified but not yet complete

20 is the final answer

Step-by-step explanation:

Hope this helps :)

4 0

3 years ago

Add or subtrack<br>1. -16 +21<br>2.-13--12<br>3.-23-(-8)

konstantin123 [22]

Answer:

1. subtract

2. add

3. add

4 0

3 years ago

Read 2 more answers

What is 1/4 in the exponent of 3?

zimovet [89]

Answer:

1/4 to the 3rd power is 0.015625

Step-by-step explanation:

Im assuming that is what your asking, you worded it a little differently. When you figure out what the value of something is based on the power it is raised to, you multiply that number by itself the amount of the exponent.

1/4 x 1/4 x 1/4 = 0.015625

5 0

3 years ago