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zimovet [89]
3 years ago
13

Could some one help me pls :/

Mathematics
2 answers:
bixtya [17]3 years ago
8 0

Answer:

What do you need help with?

Step-by-step explanation:

damaskus [11]3 years ago
4 0
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Can anyone help me with this?
Neko [114]

Answer:

the answer would be 5

Step-by-step explanation:

because if there was 15 truth or false questions that would be 45 points and if there where 5 essay questions that would be 55 questions 45+55=100 points and 15+5 questions is 20 questions so there would be 5 essay questions.

3 0
1 year ago
A single microvillus is a rod-like structure that is 1.0 μm in height. It has a hemispherical top approximately 0.1 μm in diamet
gregori [183]

Answer:

so, the figure here is a cylinder with a semi sphere on the top, we know the height of whole structure, and the radius of the semi sphere, which is the same as the radius of the cylinder (you can see it because the radius of the semisphere is constant, and you can thin on it as half a sphere over a cylinder).

First, the cylinder will be the structure without the semi sphere, so his height will be te total height minus the radius of the semi sphere, which is 0.9μm.

so now we know the height and the radius of the cylinder, the surface or the sides of it is 2*3.14*r*h = 2*3.14*0.9μm*0.1μm = 0.5662μm^{2}.

3 0
3 years ago
What is the probability that a randomly selected senator is a Democrat or is up for reelection in November 2014? (Enter your pro
Vesna [10]

Answer: 20/33

Step-by-step explanation:

According to the table of statistics given for the politicians

number of Dem. Senator = 20

number of Rep. Senator = 13

Total for Senators = 33

Let E be the event,

The required probability is:

P(E) = P(Dem)

= 20/33

3 0
2 years ago
The graph below shows the amount of money Janet earned at her new job.
navik [9.2K]

Answer:

Janets earns $7.50 an hour.

Step-by-step explanation:

2 hours : 15 dollars

divide by 2

1 hour : 7.50 dollars

Hope dis helped!

6 0
3 years ago
Read 2 more answers
Solve the system using substitution 3x+7y=3<br> x-3y=-15
erik [133]

Answer:

3x+7y=3

x-3y=-15

2x+4y=-18

HOPE THIS HELPS!!!!!!!

6 0
3 years ago
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