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melamori03 [73]
3 years ago
9

A school cafeteria wants to survey a random sample of 50 students about the quality of food. During one lunch period, every 5th

student who walks through the cafeteria door is surveyed until 50 students are selected. Which of the following statements is true about this sample?
Mathematics
1 answer:
Kitty [74]3 years ago
6 0

Answer:

B

Step-by-step explanation:

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Jackson invested $8,800 in an account paying an interest rate of 7% compounded
meriva

Answer:

$21,860

Step-by-step explanation:

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3 years ago
What is the inradius of a triangle with side lengths 9, 40, and 41?
Mars2501 [29]

Answer: 20.5

Step-by-step explanation:

From the measure of the length of the sides of the triangle, 9, 40 and 41 we can infer that the triangle is a right angled triangle. 9-40-41 is a Pythagorean triplet.

In a right angled triangle, the circumradius is half the hypotenuse.

In the given triangle, the hypotenuse = 41.

Therefore, the circumradius is  41÷2= 20.5 units.

6 0
3 years ago
Solve: 6(1-3x) +2(2x-3)=0​
Radda [10]

Answer:

x = 0

Step-by-step explanation:

→ Expand out the brackets

6 - 18x + 4x - 6  = 0

→ Collect all the like terms

-12x = 0

→ Now solve

x = 0

7 0
2 years ago
Read 2 more answers
Solve using the elimination method. <br> show your work <br> 2x - y = 6 <br> x + y = 6
bekas [8.4K]

Answer:

x=4, y=2

Step-by-step explanation:

2x - y = 6  

x + y = 6

Add these together to eliminate y

2x - y = 6  

x + y = 6

-----------------

3x = 12

Divide by 3

3x/3 = 12/3

x=4

But we still need y

x+y =6

4+y =6

Subtract 4 from each side

4+y-4 = 6-4

y=2

7 0
3 years ago
(7w+4h)+ 5(2w+3h)- 2(w+h)
jasenka [17]
7w + 4h + 10w + 15h - 2w - 2h
= 15w + 17h
3 0
3 years ago
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