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Novosadov [1.4K]
2 years ago
12

Hi if you know 8th grd math pls help

Mathematics
1 answer:
Kryger [21]2 years ago
4 0

Answer:

all correct except A.

Step-by-step explanation:

pls mark me brainly if u can

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The dot plot below represents a set of
mel-nik [20]
1, 3, 3, 4, 5, 6, each x is one of each number below
3 0
3 years ago
Quadrilateral CDEF is reflected across the x-axis and translated 3 units left to create quadrilateral GHJK .
PilotLPTM [1.2K]

Answer- KG⎯∥JH⎯

the given figure is a trapezium in which CF||DE

Reflection of figure CDEF and shifting it by 3 units does not change the shape of the figure but changes only its position in the x-y plane.

so, the shape of the figure GHJK will be same as that of CDEF.

so sides, KG⎯∥JH⎯

6 0
3 years ago
The mean hours of sleep that students get per night is 7 hours, the standard deviation of hours of sleep is 1.7 hours, and the d
densk [106]

Answer:

c. 3.6 and 10.4 hrs

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean 7, standard deviation 1.7.

For about 95% of students, nightly amount of sleep is between

7 - 2*1.7 = 7 - 3.4 = 3.6 hours

7 + 2*1.7 = 7 + 3.4 = 10.4 hours

So the correct answer is:

c. 3.6 and 10.4 hrs

5 0
3 years ago
FREE P0Ints FOR EVERYONE!
sashaice [31]

Answer:

hewo

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Can I get some help with these questions, please?
dangina [55]

17. The letter is J

The letter appears 3 times

18. Lefthanded students = 4 students

<h3>How to determine the factors</h3>

17. We have that 1/4 of the months of the year start with the same letter

It is important to note that:

January, June and July all start with the same letter

The letter is J

The letter appears 3 times

18. Total number of students = 24

5/ 6 are right handed

Right handed students = 24 × 5/ 6 = 4 × 5 = 20 students

Lefthanded students = 24 - righthanded students

Lefthanded students = 24 - 20

Lefthanded students = 4 students

Thus, we can see that the letter that appear in 3 months of the year is J

Learn more about word problems here:

brainly.com/question/13818690

#SPJ1

5 0
2 years ago
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