2 years ago

⚠️⚠️PLEASE HELP!!!!!⚠️⚠️

Mathematics

1 answer:

deff fn [24]2 years ago

7 0

Answer: B : The high temperature in Memphis decreased steadily.

Step-by-step explanation:

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45% of the 647 students at Royal Oak High attended the football game. How many students did not attend?

Lostsunrise [7]

First multiply
.45*647= 291.15
291.15 is the number of people that attended
subtract 291.15 from 647 and you get 355.85 wait.. but that's not possible so just round it so the answer to your question is 355 people did not attened

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3 years ago

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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).

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3 years ago

What is the common factor among xy2 and x2y ?

Nikolay [14]

Answer:

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What is the value of 6z÷22+5y when y=3 and z=6 ?

Mnenie [13.5K]

The must be b because I got 16.66666

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Joanna made $104.50 for working 11 hours this week. How much money will she make if she works 15 hours?

Brut [27]

104.5/11=9.5
9.5x15=$142.50

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