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2 years ago

Please answer ! Polynomials and Factoring problems. Thank you!

Mathematics

1 answer:

Ratling [72]2 years ago

4 0

Answer: The answer to your first question is b^2+2b-8. You second answer is y^2-4y+3.

Step-by-step explanation: Now, these questions deal with the FOIL method commonly taught in schools. The FOIL method is to turn factored binomials back into quadratics. Let's first go over what FOIL means.
F - First. So you multiply the first terms in each set of parenthesis, so b times b and y times y make b squared and y squared.
O - Outer. Multiply the two outer terms together, so b times -2 and y times -3. Remeber to pay attention to your signs when you multiply during these probelms!
I- Inner. Multiply the two inner terms together. so 4 times b and -1 times y. Again, make sure the signs are incorporated!
L - Last. Multiply the last terms in the binomials. So 4 times -2 and -1 times -3.

Now that we have our numbers, we have expanded quadratics that look like these:
b^2 -2b+4b-8 and y^2-3y-y+3

Now combine the two middle terms into +2b and -4y, and your answers are b^2+2b-8 and y^2-4y+3.

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Find the difference. Do not round.<br><br> 12.39 - 1.504 =

VladimirAG [237]

<span>12.39 - 1.504 - Given subtraction problem that needs to be solve to find out the difference. NO need to round off the answer.
=> </span>12.39 - 1.504 = 10.886
10.886 - is the answer or the difference.

5 0

4 years ago

Read 2 more answers

What is the volume of this complex figure

andre [41]

The volume of the given figure is 210 cubic in..

We need to find the volume of the given figure.

<h3>What is volume?</h3>

Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface.

Divide the given figure into two convenient cuboids. That is one with dimensions length=4 in., breadth=2 in. and height=3 in. Another with length=4 in., breadth=4 in. and height=12 in.

We know that, the volume of cuboid =l×b×h cubic units.

Now, the volume of the cuboid=4×2×3=18 cubic in. and the volume of another

cuboid=4×4×12=192 cubic in.

The volume of the given figure=18+192=210 cubic in.

Therefore, the volume of the given figure is 210 cubic in.

To learn more about the volume visit:

brainly.com/question/1578538.

#SPJ1

5 0

2 years ago

LYou earn $11.25 per hour x at your summer job. Write and solve an inequality that represents the number of hours you need to wo

Kryger [21]

Answer:

53.3333333333333

Step-by-step explanation:

I just divied 600 with 11.25

7 0

3 years ago

Order these numbers from least to greatest<br><br> 151/20, 7 6/11, 7.32, 7.546

Anton [14]

Answer:

76/11 ; 7.32 ; 7.546 ; 151/20

Step-by-step explanation:

Given data:

The numbers are listed as below

151/20 ; 76/11 ; 7.32 ;7.546

The numbers are written in the same format that is in decimal form

7.55 ; 6.90901 ; 7.32 ; 7.546

Arranging the numbers starting with the least number

6.90901 ; 7.32 ; 7.546 ; 7.55

76/11 ; 7.32 ; 7.546 ; 151/20

Please note the value of 151/20 is exactly 7.550 which makes it larger than 7.546.

4 0

3 years ago

a laptop computer is purchased for $4500. Each year, its value is 80% of its value the year before. After how many years will th

motikmotik

Answer:

So after 7 year price of the laptop will be less than $1000

Step-by-step explanation:

We have given price of the laptop is $4500

Its price is 80% of if its value in every next year

So depreciation rate = 100 - 80 =20%

For depreciation we know that

$V=P(1-r)^n$

Here V is final value and P is present value

So $1000=4500(1-0.2)^n$

$0.2222=(0.8)^n$

Taking log both side

$log0.222=nlog0.8$

n = 6.74

So after 6.74 year the price of the laptop will be less than $1000

7 0

3 years ago