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Maru [420]
2 years ago
12

The mark obtained by six boys in a test are 20,25,15,30,28 and 16. Find the mean mark.​

Mathematics
1 answer:
omeli [17]2 years ago
8 0

Answer:

22.3333333

Step-by-step explanation:

Mean = the sum of all of the numbers divided by the amount of numbers given. The sum (134) was divided by the number of numbers (6) to get 22.3333333. This is not 22 and 3 repeating, since my calculator would've rounded the last digit to 4.

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Find the equation of the line through point (10,4) and parallel to 3x+5y=8.
Gnom [1K]
Parallel = same slope
Find slope of 3x + 5y = 8
Turn into y = mx + b
5y = -3x + 8
Divide by 5
y = -3/5x + 8/5
Slope is -3/5
Y = -3/5x + b, find y intercept
Plug in the point
4 = -3/5(10) + b
4 = -6 + b, b = 10
Final equation: y = -3/5x + 10
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What’s the exact value of Cos(127.5)? Using trig identities like half angle and PLEASE EXPLAIN
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Step-by-step explanation:

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Step-by-step explanation:

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4 years ago
Help me yall this for me aint it.
aleksandrvk [35]

Answer:

20(4 + 5)

Step-by-step explanation:

GCF is just the biggest number each value can be divided by. Here, it's 20, so that goes outside of the parenthesis. Now, what can you multiply by 20 to get 80? 4, so that goes in the second box. What can you multiply by 20 to get 100? 5, so that goes in the last box. You can check your answer by doing 80 + 100 = 180; 20(9) = 180.

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Describe the solutions of 5 <n​
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