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Svetlanka [38]
3 years ago
6

115 students could sign up to hear three different speakers for career day. 70 students heard the nurse speak, 52 heard the fire

fighter, and 78 heard the webmaster. Some students heard more than one speaker. The results are shown in the table below.
___________________________________
Number of students | Speaker
15 | All three
20 | Nurse and firefighter
30 | Webmaster and nurse
12 | Firefighter only
Mathematics
1 answer:
Anastasy [175]3 years ago
7 0
What is the question?
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Point m is the midpoint of ab¯¯¯¯¯ . am=3x+3, and ab=8x−6. what is the length of am¯¯¯¯¯¯ ?
LuckyWell [14K]
As given m is a midpoint of ab. So am is half of ab.

So we can write

am =  \frac{ab}{2}

As given am = 3x+3 , ab = 8x - 6.

So 3x+3 = \frac{8x - 6}{2}

3x+3 =  \frac{2(4x - 3)}{2}

3x+3 = 4x - 3

3+3 = 4x - 3x


6 = x

So x = 6.

So length of am = 3x+3 = 3*6 + 3 = 21
5 0
3 years ago
Help marking brainly
Aneli [31]

Answer:

34

9 + 25

Step-by-step explanation:

Step 1: Define expression

a² + b²

a = 3

b = 5

Step 2: Substitute

3² + 5²

Step 3: Evaluate

9 + 25

34

5 0
3 years ago
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The figure shows a square with sides of length 1 and a diameter of length x.
alexandr1967 [171]

Answer:

  • √2 units

Step-by-step explanation:

It should be diagonal not diameter.

The diagonal of the square is √2 time the side.

The side given 1 unit, then the diagonal is x = √2 units

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3 years ago
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Two similar cylinders have surface areas of 24π cm2 and 54π cm2. The volume of the smaller cylinder is 16π cm3. What is the volu
Svetach [21]

Answer:

the answer is 54pi cm^3

Step-by-step explanation:

I'm smart

7 0
3 years ago
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How to do these problems
Blababa [14]
What problems do you need help with I dosen't show???
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3 years ago
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