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Reika [66]
2 years ago
10

How do you find fh if ️fgh ~ ️kjh​

Mathematics
1 answer:
Lostsunrise [7]2 years ago
5 0
What is that ? are you joking ?
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What is the best estimate of 687 × 391?<br><br> 280,000<br> 210,000<br> 240,000<br> 180,000
ra1l [238]

Answer:

Step-by-step explanation:

Estimating a sum by rounding to get the best estimate is the goal of this lesson. Notice that we try to estimate. We don't need to have an exact answer!

Notice that for numbers with two digits, there can only be one estimate because you can only round to the tens place.

Estimate the following sums: 36 + 21, 74 + 15, and 85 + 24

36 + 21 = 40 + 20 = 60

74 + 15 = 70 + 20 = 90

7 0
2 years ago
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A survey was conducted to determine whether hours of sleep per night are independent of age. A sample of individuals was asked t
alekssr [168]

Answer:

Sleep hours per night is independent.

Step-by-step explanation:

Given the data:

Hours of Sleep 39 or younger 40 or older

> 6 _____38 36

6 to 6.9 _ 61 58

7 to 7.9 __76 74

8 or more 65 92

The Chisquare statistic is to be used to perform the analysis :

The hypothesis :

H0: Sleep hours per night is independent

H1: Sleep hours per night is not independent

χ² = (observed - Expected)² / Expected

To save computation time. We could use a Chisquare calculator to perform the analysis :

The test statistic = 4.0061

The degree of freedom = (row - 1) * (column - 1)

Degree of freedom = (4-1)*(2-1) = 3*1 = 3

The Pvalue = 0.261

Since, Pvalue > α ; We fail to reject the H0 ;and conclude that sleep hours per night is independent.

______________total ___%

> 6 _____38 36__ 74 __ 14.8

6 to 6.9 _ 61 58 __ 119 __23.8

7 to 7.9 __76 74___150__30

8 or more 65 92___157__31.4

_______240 _260__500_100

7 0
2 years ago
What is equivalent to 2/5
LuckyWell [14K]
There are many answers. I’ll give you three examples...

4/10
6/15
8/20

There is a pattern too, just a trick!
7 0
3 years ago
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What is The value of Y in this exponential growth function when X equals two y=1.5x
kow [346]

Y=3

Y=1.5x

If X=2 insert 2 into the equation

Y=1.5(2)
Y=3
5 0
3 years ago
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Can anybody help with this? Please!!
ArbitrLikvidat [17]
Cos is the adjacent (side next to the angle in question) divided by the hypotenuse (sloped side)
for angle K, this is therefore 7/25
5 0
3 years ago
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