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3 years ago

Please Help me with this question i don't even know what to do.

Mathematics

1 answer:

Gekata [30.6K]3 years ago

4 0

Answer:

D is the answer

Step-by-step explanation:

Step 1 :

Equation at the end of step 1 :

((0 - 5x2) - 8x) - 11 = 0

Step 2 :

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

-5x2 - 8x - 11 = -1 • (5x2 + 8x + 11)

Trying to factor by splitting the middle term

3.2 Factoring 5x2 + 8x + 11

The first term is, 5x2 its coefficient is 5 .

The middle term is, +8x its coefficient is 8 .

The last term, "the constant", is +11

Step-1 : Multiply the coefficient of the first term by the constant 5 • 11 = 55

Step-2 : Find two factors of 55 whose sum equals the coefficient of the middle term, which is 8 .

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Svetlanka [38]

The last one is you’re anwser 16p 3 slices a piece

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3 years ago

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if a cone-shaped hole is 3 feet deep and the circumference of the base of the hole is 44 ft, what is the volume of the hole? use

Ymorist [56]

To find the volume of the whole, you will use the formula for finding the volume of a cone. V = 1/3 x r^2 x h.

You will first need to find the radius by using the information given about the circumference and the circumference formula.

C = pi x d
44 = 22/7 d
d = 14 feet.

Then use the diameter to find the radius of 7 feet.

V = 1/3 x r^2 x h
1/3 x 7^2 x 3
V = 49 cubic feet

3 0

3 years ago

Answer:

tekilochka [14]

Answer:

Grapes 12 lbs

Apples 20 lbs

Oranges 6 lbs

Cantaloupe 15 lbs

Peaches 15 lbs.

Step-by-step explanation:

Sammy has bought 12 lbs of Grapes.

Now, weight ration of Apples to Grapes is 5 : 3

Therefore, he bought Apples of $\frac{12 \times 5}{3} =20$ lbs

The wight ration of Grapes to Oranges is 4 : 2

Therefore, he bought Oranges of $\frac{12 \times 2}{4} =6$ lbs

Again, the weight ratio of Cantaloupe to Apples is 3 : 4

Therefore, he bought Cantaloupe of $\frac{20 \times 3}{4} =15$ lbs

Finally the weight ratio of Oranges to Peaches is 2 : 5

Therefore, he bought Peaches of $\frac{6 \times 5}{2} =15$ lbs

(Answer)

5 0

3 years ago

A college writing seminar increased its size by 50% from the first to the second day. If the total number of students in the sem

slava [35]

10 students on the first day

7 0

3 years ago

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3. JK Rowling and R.L. Stine are both reading the Hunger Games. J.K. reads 35

Crank

Answer:

Part A:

For J.K. Rowling: 17.5pages/hour

For R.L. Stine: 15pages/hour

Part B:

J.K. Rowling will finish the book first.

Step-by-step explanation:

Part A:

The rate of change in this case represents how much changes a variable in a specific period of time. The variable is the amount of pages.

You have to calculate the amount of pages that J.K. Rowling and R.L. Stine read in one hour.

For J.K. Rowling, 35 pages every 2 hours can be written as:

If you divide 35/2 you can obtain the amount of pages in one hour:

17.5pages/hour (17.5 pages per hour)

For R.L. Stine, 45 pages every 3 hours can be written as:

If you divide 45/3 you can obtain the amount of pages in one hour:

15pages/hour (15 pages per hour)

Part B:

In order to calculate who will finish the hunger games first, you have to calculate the amount of time needed to finish the book.

For J.K. Rowling:

You have to multiply 355 pages by (because in one hour she reads 17.5 pages) to obtain the amount of hours

For R.L. Stine:

You have to multiply 355 pages by (because in one hour he reads 15 pages) to obtain the amount of hours

So, J.K. Rowling will finish the book first because she needs less time than R.L. Stine.

5 0

3 years ago