1 year ago

Please answer number 8. I need help, I don’t understand.

Mathematics

1 answer:

Bond [772]1 year ago

6 0

Answer:

A=2πrh+2πr2 this is the surface are formula of a cylinder. You already know the scale ratio is 2.5 so the answer is (2.5*surface area formula). For the formula just plug in the values for the radius and the height that is given and solve.

Step-by-step explanation:

You might be interested in

Notice that the rule for each animal involves counting the number of chirps in different time intervals. For the Brookdale crick

shusha [124]

B= 15c maybe I think

8 0

2 years ago

In a competition, the ratio of the number of tickets Mark collected to the number of tickets Julia collected is 4:3. Julia colle

Afina-wow [57]

Answer: 84 tickets

Step-by-step explanation:

We are told the ratio of the number of tickets Mark collected to the number of tickets Julia collected is 4:3

$\frac{M}{J}=\frac{4}{3}$ (1)

In addition, we are told Julia collected 36 tickets:

$J=36$ (2)

Substituting (2) in (1):

$\frac{M}{36}=\frac{4}{3}$ (3)

Isolating $M$ :

$M=48$ (4)

Adding Mark's tickets to Julia's:

$M+J=48+36=84$

Therefore, both collected 84 tickets.

3 0

2 years ago

Kristy asks Lonnie to think of a number , Add 3 to it, multiply the sum by 2, and then subtract 6. Let n stand for lonnie's star

Zanzabum

Answer:

2(n+3) - 6 = 2n

Step-by-step explanation:

Let n stand for lonnie's starting number.

Kristy asks to add 3 to the number. It will become (n+3)

Now he ask to multiply the sum by 2. It will become 2(n+3).

Finally, he ask to subtract 6. It will become 2(n+3) - 6

The expression is : 2(n+3) - 6.

We can simplify it as follows :

= 2n+6-6

= 2n

Hence, the required expression is 2n.

7 0

2 years ago

Read 2 more answers

How do I divide 178.8 by 24?

Doss [256]

<span>7.45 is the final answer

178.8/ 24 = about 7.45</span>

4 0

2 years ago

Evaluate the following expression when x = 3 and y = 4:

OLEGan [10]

$\dfrac{ {3}^{2} + {4}^{3} }{2 + 3} \\ = \dfrac{9 + 64}{5} \\ = \dfrac{73}{5} \\ = 14.6$

Answer is C.

Hope this helps. - M

3 0

3 years ago

Read 2 more answers