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777dan777 [17]
3 years ago
12

2x2-3 evaluate each expression. Show your work

Mathematics
1 answer:
nirvana33 [79]3 years ago
5 0

Answer:

1

Step-by-step explanation:

2x2 = 4

4-3=1

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.875 written as a percentage
Alex17521 [72]

Answer:

87.5%

Step-by-step explanation:

to write a percentage as a number you move the decimal to the left 2 times.

7 0
3 years ago
Read 2 more answers
In the third degree polynomial function f(x) =x^3 + 4x, why are 2i and -2i zeros?
IgorC [24]

Answer:

We just need to evaluate and get f(2i)=0, f(-2i)=0.

Step-by-step explanation:

Since i^2=-1, then i^3=i^2i=-i, and we can apply this when we evaluate f(x) =x^3 + 4x for 2i and -2i.

First we have:

f(2i) =(2i)^3 + 4(2i)=2^3i^3+8i=8(-i)+8i=0

Which shows that 2i is a zero of f(x).

Then we have:

f(-2i) =(-2i)^3 + 4(-2i)=(-2)^3i^3-8i=-8(-i)-8i=8i-8i=0

Which shows that -2i is a zero of f(x).

4 0
4 years ago
Suppose you write a sum of numbers as a product of their GCF and another sum. What is the GCF of the numbers in the other sum? C
vivado [14]

Answer:

1

Step-by-step explanation:

7 0
3 years ago
What is [12÷(3-1)+4]×6​
erma4kov [3.2K]
The answer should be:

60

Hoped it Helped !!
6 0
3 years ago
Read 2 more answers
Could someone please help ?
blondinia [14]

Answer:

No

Step-by-step explanation:

Put x = 2 into both equations:

For x- 10 = 2-10 = 8 (Not  > 8)

For -0.5x-4 = -0.5*2-4 = -5 (Not < -8)

Hence, the answer is no.

4 0
3 years ago
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