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3 years ago

Add the polynomials. (5x2−8x+8)+(6x3−5x) The sum is_____. (Simplify answer.)

1 answer:

4 0

The simplified answer is <span>(5x2−8x+8)+(6x3−5x) If you need the steps, I recommend you use Cymath.com it's super easy and great for math!</span>

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Simplify the answer

Andru [333]

Answer:

- 20 + 8i

Step-by-step explanation:

Noting that i² = - 1

Given

[(6i + 9) + (4i - 5)] × 2i ← evaluate the terms inside the square bracket

= ( 6i + 9 + 4i - 5 ) × 2i

= (10i + 4) × 2i ← multiply each term in the parenthesis by 2i

= 20i² + 8i

= 20(- 1) + 8i

= - 20 + 8i

8 0

3 years ago

As the values for one variable decrease from one person to another, the values for a second variable also tend to decrease. This

EleoNora [17]

Answer:

This is an example of an positive relationship.

Step-by-step explanation:

As the values for one variable decrease from one person to another, the values for a second variable also tend to decrease. This is an example of an positive relationship.

6 0

3 years ago

Hal has a steel barrel with a diameter of 6 feet that can be filled to a depth of 4.6 feet with oil. What is the volume of the b

scoray [572]

Answer:

129.996 cubic feet

Step-by-step explanation:

Assuming that the barrel is a perfect cylinder, we can use the formula to find the volume:

$\pi(r)^2(h)$

First, we have to find the radius, which is:

D = 2r

So the radius is 3 feet, since it is half of the diameter. Then, we plug in the values.

$3.14(3)^2(4.6)$

Now, we solve. Exponents are first...

3.14(9)(4.6)

Now multiply left to right.

28.26(4.6)

129.996 cubic feet

Therefore, the barrel can hold 129.996 cubic feet of oil. Hope this helps you!

3 0

3 years ago

at bingo Carol won 13 out of 25 games that she played . What percent of the games did she win?? ASAP

lana [24]

1325 also know as 4.7%

5 0

3 years ago

To go on the class trip, Chang needs at least $125. He has saved $45, and he makes $7 an hour at his job. What is the minimum nu

Marysya12 [62]

Answer:

Your answer is C. 12 hours

Step-by-step explanation:

125 = 7 + 45

125 - 45 = 7h

7 = 80

H = 80/7

H = 11.429 h

5 0

3 years ago

Read 2 more answers

Add the polynomials. (5x2−8x+8)+(6x3−5x) The sum is_____. ​(Simplify answer.)

Add the polynomials. (5x2−8x+8)+(6x3−5x) The sum is_____. (Simplify answer.)