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icang [17]
3 years ago
11

If you have 18 questions how many do you need to get right to have 50 percent correct

Mathematics
1 answer:
MrRa [10]3 years ago
5 0
You would need exactly 9 correct questions to get a 50%.

We can find this by multiplying the total number of questions by the percentage we are looking for. 

18*50% = 9
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Sonia is standing 20 centimeters from the door.brice is standing 20 meters from the door.who is standing further from the door
Sever21 [200]
Hello!

Brice is standing further away from the door, because 20 metres are greater than 20 centimetres.

A lot greater, actually, because 20 metres = 2,000 centimetres.
6 0
3 years ago
Given each set of points, determine if AB and CD
tester [92]

Answer:

Paralell

Step-by-step explanation:

The line from A to B has a slope of 1

the Line from C to D had a slope of 1

since the slopes are equal the lines are paralell

7 0
2 years ago
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If a 200 N net force acts on a 500 grams car, what will the acceleration of the car be? ​
ladessa [460]

Answer:

The acceleration of the car will be 400 m/s².

Step-by-step explanation:

The acceleration of the car can be found using Newton second law:

F = ma

Where:

F: is the net force = 200 N

m: is the mass = 500 g

a: is the acceleration =?

Then, the acceleration will be:

a = \frac{F}{m} = \frac{200 N}{500 g*\frac{1 kg}{1000 g}} = 400 m/s^{2}  

Therefore, the acceleration of the car will be 400 m/s².

I hope it helps you!

4 0
3 years ago
What is 4.5a+7+3.5a+2
Nitella [24]

Answer:

8a+9

Step-by-step explanation:

You have to add the like terms.

4.5a+7+3.5a+2

4.5a+3.5a=8a

7+2= 9

8a+9

3 0
3 years ago
Find the side AB using the law of sines with the one of the sides 11 and the angles 82 and 44 degrees
Rasek [7]

Answer:

7.7

Step-by-step explanation: We are trying to find side c  or side AB

Using the law of sines formula,

a/sin a= b/sin b c/sin c we can solve for missing side.

We are  given side BC or side a which is 11

We also are given angle A is 82 degrees

Angle C is  44 degrees also.

So let set up a proportion.

11/sin 82= x/sin 44

11/sin 82× sin 44=x

x= 7.7

5 0
3 years ago
Read 2 more answers
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