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Advocard [28]
3 years ago
11

What is the mean for 46 47 52 55 64 69 70 78

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0

answer: 60.125

step-by-step explanation:

46 + 47 + 52 + 55 + 64 + 69 + 70 + 78 is 481, then you divide it by the amount of numbers you have which is 8 and you get 60.125

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Using 10% as a benchmark, 20% of 390 can be found by adding 38 + 40.<br> True<br> O False
taurus [48]

Answer:

The answer is false! Good luck my guy

Step-by-step explanation:

5 0
2 years ago
The area of the region under the curve of the function f(x) = 5x + 7 on the interval [1, b] is 88 square units, where b &gt; 1.
djverab [1.8K]
We are given the area of the region under the curve of the function f(x) = 5x + 7 with an interval [1, b] which is 88 square units where b > 1 

We need to find the integral of the function f(x) = 5x + 7 with the limits 1 and b 

5/2 x^2 + 7x (limits: 1, b)

substitute the limits:

5/2 (1^2) + 7 (1) - 5/2 b^2 + 7b = 0

solve for b

Then after solving for b, this would be your interval input with 1: [1, b].<span />
4 0
3 years ago
Read 2 more answers
Can anybody explain to me what this question mean so it says "8 more than a number n is written ___________ in algebraic form"
Umnica [9.8K]

Answer:

They want you to put it into an expression so that it could be expressed. So, 8 more than n would be 8+n.

Hope This Helps!!! :D  

3 0
3 years ago
Read 2 more answers
Question 4
Ilia_Sergeevich [38]

Answer:

2

Step-by-step explanation:

Given

See attachment for chart

Required

Number of off days

To do this, we simply calculate the expected value of the chart.

This is calculated as:

E(x) = \sum x * f

Where

x = days

f = chances

So, we have:

E(x) = 0* 0.3 + 1 *0.2 + 2 * 0.25 + 3  * 0.2 + 4  * 0.02 + 5 * 0.01 + 6 * 0.01 + 7 * 0.01

E(x) = 1.56

E(x) \approx 2

3 0
2 years ago
I can't solve it, so, here goes nothin'. "Some people are on a train, 19 people get off at one stop, then, the next one 13. Now
Stolb23 [73]

19+13=32

32+63=95

95-4=91

91+10=101

This means that 101 people are now on the bus.

HOPE THIS HELPS <3

4 0
2 years ago
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