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sasho [114]
3 years ago
15

Trey took 5/4

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

3/4 more hours

Step-by-step explanation:

Hours taken to clean bedroom = 5/4

Hours taken to clean den = 1/2

How much more = 5/4 - 1/2

5-2/4 (common denominator)

3/4 more hours (It's a propper fraction, so we can't write it as a mixed number)

Answer from Gauthmath

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Three friends grow groups of sunflowers. Some think that Anna’s flowers are the tallest because the mean height of her flowers i
algol [13]
We have to find the graph where the mean of the flower heights is higher and the median is lower.

1st graph
M = ( 3 + 3 + 3 + 3 + 3 ) / 7
M = 15 / 7
Medium = 3
15 / 7 < 3 ( False )
2st graph
M = ( 2 + 6 + 2 + 1 + 1 + 3 ) / 6
M = 15 / 6
Medium = 4 / 2 = 2
15 / 6 > 2
So this is the requested chart.
Hope this helps, good studies.
7 0
3 years ago
The scores on a test are normally distributed with a mean of 78 and a standard deviation of 13. Find the score that is 2 standar
Veronika [31]

Answer:

52

Step-by-step explanation:

Given that :

Mean (m) = 78

Standard deviation (s) = 13

Score that is 2 standard deviations below the mean

Using the relation :

Zscore = (x - m) / s

2 standard deviations below the mean means a Zscore of - 2

Hence,

-2 = (x - 78) / 13

Cross multiply

-2 * 13 = x - 78

-26 = x - 78

x = - 26 + 78

x = 52

Score which is 2 standard deviations below the mean is 52

4 0
3 years ago
For this exponential function what is the output value (y) when the input value (x) is 0?
Alenkinab [10]

Answer:

12

Step-by-step explanation:

y^0=1\\5^0=1\\12*1=12

6 0
3 years ago
I need help with number 4 please you don't need to explain ​
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I need some love in my life
8 0
3 years ago
A circle has a circumference of 18. It has an arc of length 6. What is the central angle of the arc, in degrees?
nadya68 [22]
Circumference: 2πr C=18 so r= 18/2π= 9π

Arc length = rθ 6=(9π)θ θ=6/9π

Convert to degrees by multiplying by 180/π

6/9π x 180/π = 120 degrees
4 0
3 years ago
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