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2 years ago

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Mathematics

2 answers:

frutty [35]2 years ago

6 0

Answer:

1) There are two definitions Charlotte came up with to define the quantity:

• Number of new subscribers divided by number of posts

• Number of new subscribers divided by number of words

2) No. The definitions have opposite results

KonstantinChe [14]2 years ago

5 0

Answer:

I will help you, you moron

Step-by-step explanation:

For question 1, it is C and D the post and words

Question 2 it is B

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2/5da80% como ahora la cuenta

andreev551 [17]

I don't speak Spanish but I think that this is what you meant:
80 * 2/5 = 32
so 2/5 of 80 % is 32 % (80/5 * 2)

4 0

3 years ago

Say youre going to conduct a t procedure for the difference between the means of two populations. You decide the samples of size

stiv31 [10]

Answer:

all 3 are correct.

III

you're welcome

6 0

3 years ago

Solve the quadratic by quadratic formula below<br><br> x squared-14x=-49

lubasha [3.4K]

X^2-14x+49=0

Factor
(x-7)(x-7)

Check
-7-7=-14
-7*-7=49

Use ZPP
x-7=0
x=7

Final answer: x=7

5 0

3 years ago

Read 2 more answers

Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have a diameter of 1 foot. Th

Naya [18.7K]

Answer:

39.25 cubic feet of paint will be needed by Ellis.

Step-by-step explanation:

Volume of a cylinder:

The volume of a cylinder of radius r and height h is given by:

$V = \pi r^2h = 3.14r^2h$

How much paint will Ellis need to paint all the surfaces of the 10 fenceposts?

This is the combined volume of these 10 fenceposts.

They are each 5 feet tall and have a diameter of 1 foot.

Radius is half the diameter, so $r = \frac{1}{2} = 0.5$ . Also $h = 5$

10 fenceposts:

Each has the same volume, so:

$V = 10(3.14)r^2h = 31.4(0.5)^2(5) = 39.25$

39.25 cubic feet of paint will be needed by Ellis.

6 0

2 years ago

Solve for x.

lidiya [134]

Answer:

x = 1/4

Step-by-step explanation:

<u>Calculations:</u>

$7(x-3)+3(4-x)=-8$

$7x-21+12-3x=-8$

$4x-9=-8$

$4x=1$

$x=\frac{1}{4}$

7 0

2 years ago