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Alja [10]
3 years ago
6

Expand the polynomial (x^(2)+xy-y^(2))(x+y)

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
6 0

Answer:

It's already expanded.

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Please Guys<br><br><br> -4n(5n+6)-5(3+3n)
Ratling [72]

Answer:

I tried this but i got it wrong it is not b on the test thing

Step-by-step explanation:

oop

5 0
3 years ago
The planner needs a clearance of 9 feet under the arch has the planner met the minimum
BlackZzzverrR [31]

Yes, the planner has met the minimum height, as the minimum height was 9 feet and the maximum height of the arc is 9.6 feet

<h3>How to explain the information?</h3>

As we can see that at the mid value, for x=4, the value of f(x)=9.4

It means that the maximum height occurs at mid of the arc where it is height is 9.6 feet above the ground.

It means that the planner has met the minimum height, as the minimum height was 9 feet and the maximum height of arc is 9.6 feet

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8 0
2 years ago
Two painters can paint a room in 4 hours if they work together. The less experienced painter takes 3 hours more than the more ex
Lady bird [3.3K]
I believe it 5 hours
8 0
3 years ago
Select the interval where f is negative.
sineoko [7]

Answer: I guess B

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
As a block of ice melts it changes from 1 3/4 lb to 1/4 lb and takes 1/4 hr. What is the rate the ice changes?
Nutka1998 [239]

The rate at which the ice changes is -3/8 lb per hr

<h3>What is the rate the ice changes?</h3>

The given parameters are:

Changes =1 3/4 lb to 1/4 lb

Time = 1/4 hr.

The rate the ice changes is calculated as:

Rate = Change/Time

So, we have

Rate = (1/4 lb - 1 3/4 lb)/(1/4 hr)

Evaluate the difference

Rate = (-1 1/2 lb)/(1/4 hr)

Evaluate the quotient

Rate = -3/8 lb per hr

Hence, the rate at which the ice changes is -3/8 lb per hr

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8 0
2 years ago
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