Simplify the following polynomial expression. (5x^4-9x^3+7x-1)+(-8x^4+4x^2-3x+2)-(-4x^3+5x-1)(2x-7)

Answers

Answer 1

Answer:

Answer:

5x^4 - 37x^3 - 6x^2 + 41x - 6

Step-by-step explanation:

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How do u multiply 1.75 times 35?

Answers

Multiplication of decimals is the same as multiplying whole numbers, except when you are done you just count the decimal places in the muliplicands and put the same number of decimal places in the answer. See the picture.

Final answer:

To multiply 1.75 by 35, use the distributive property: multiply 1.75 by 5 and 30 separately, then add the products.

Explanation:

To multiply 1.75 by 35, you can use the distributive property. Start by multiplying 1.75 by 5, which gives you 8.75. Then, multiply 1.75 by 30, which gives you 52.5. Finally, add the two products together to get the final answer: 8.75 + 52.5 = 61.25.

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the bottom of a ladder must be placed 5 feet from a building. the ladder is 14 feet long. how far above the ground does the ladder touch the wall?

Answers

$h^2+5^2=14^2\n h^2+25=196\n h^2=196-25\n h^2=171\n h=3√(19)$

Answer:

Hope this helps

A non-scale model of the earth has a diameter of 12 in. Within an outer clay layer, there is a core made of a golf ball with a diameter of 2 in.What is the volume of the clay? Use 3.14 to approximate pi and round your answer to one decimal place.

Answers

fist find volume of whole
find volue of golf ball
volume of sphere=4/3 times pi times r^3

diameter=2radius
divide 2
diameter/2=radius
12/2=6=radius

4/3 times 3.14 times 6^3=904.32

whole volume=904.32

volume of golve ball
4/3 times 3.14 times 2/2=4.18666
subtract

904.32-4.18666=900.133333

the asnwer is 900.13 in^3

HELP!!! On a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 50º. What is the measure of the third angle?

Answers

sum of all angles in a triangle must equal 180

so

180 - (30 + 50)
= 180 - 80
= 100

answer:
third angle = 100

Remember that all of a triangle angles have to add up to 180 degrees. In that case, let's solve!: 30+50=80 180-80= 100

So the third angle is equal to 100. I hope this helped!!

The farmer harvested 5000 bushels of barley from 40 acres. The crop produced an average of how many bushels of barley for each acre?

Answers

5000 divided by 40 is 215. Therefore, he produced 215 bushels of barley per acre.

Final answer:

To find the average number of bushels of barley per acre, divide the total number of bushels by the number of acres. In this case, the average bushels per acre would be 125 bushels per acre.

Explanation:

To find the average number of bushels of barley per acre, divide the total number of bushels by the number of acres.

Formula: Average bushels per acre = Total bushels / Total acres

In this case, the average bushels per acre would be 5000 bushels / 40 acres = 125 bushels per acre.

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8.88 x 10,000 really confused with this one on my homework, can you guys anseer and explain why? would really help!

Answers

When multiplying by a number that is 1 with 0's on the end, you move the decimal to the right by how many zeros there are.

Because 10,000 has 5 0's, we move the decimal 5 places to the right.

8.88 => 88800

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