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Papessa [141]
3 years ago
4

A survey was conducted at Springdale High to find the number of hours students sleep at night. The histogram shows the data coll

ected in this survey. Which statement about the number of hours students sleep is true? A. Seventeen students sleep between 6 and 8 hours at night. B. Seventeen students sleep for 6 hours at night. C. Ten students sleep for 4 hours at night. D. Six students sleep between 2 and 4 hours at night. E. Four students sleep for 10 hours at night.
Mathematics
2 answers:
Verdich [7]3 years ago
6 0
You have a histogram that we can not see so we can't answer your question.

Please edit your question to provide a picture of the histogram
Olin [163]3 years ago
6 0
I'm not for sure but I think it's D
You might be interested in
(This is a "show your work" type of assignment)
joja [24]

Answer:

Part 1) It is not possible to apply the Pythagorean Theorem to find the missing side, because is not a right triangle

Part 2) I would use the law of the cosine, because to apply the law of sine I would need to know the value of angle C or angle B

Part 3) The length of side CB is 369\ units

Part 4) The measure of angle C is 35\°

Part 5) The measure of angle B is 88\°

Step-by-step explanation:

Part 1) Can you use Pythagorean Theorem to find the missing side?

we know that

The Pythagorean Theorem is used in a right triangle

The triangle ABC of the figure is not a right triangle

therefore

It is not possible to apply the Pythagorean Theorem to find the missing side

Part 2) Would you use Law of Sine or Law of Cosine to find the length of side CB?    

I would use the law of the cosine, because to apply the law of sine I would need to know the value of angle C or angle B

Part 3) Find the length of side CB. Show your work and round your answer to the nearest whole number

Applying the law of cosine

BC^{2}=AB^{2}+AC^{2}-2(AB)(AC)cos(A)

substitute the values

BC^{2}=255^{2}+440^{2}-2(255)(440)cos(57\°)

BC^{2}=136,408

BC=369\ units

Part 4) Find the measure of angle C. (Hint: use the other “Law”). Round your answer to the nearest whole degree

Applying the law of sines

\frac{AB}{sin(C)}=\frac{CB}{sin(A)}

substitute the values

\frac{255}{sin(C)}=\frac{369}{sin(57\°)}

sin(C)=255*sin(57\°)/369=0.5796

C=arcsin(0.5796)=35\°

Part 5) What is the measure of angle B? Show your work and round your answer to the nearest whole degree.

Remember that

the sum of the interior angles of a triangle must be equal to 180 degrees

sp

substitute the values and solve for <B

57\°+

4 0
3 years ago
Does the picture below indicate that JAC DBE
Over [174]

Answer:

no

Step-by-step explanation:

The box in angle b means that it is a right angle and right angles are 90 degrees

The angle marked A is 93 degrees

The angles are not equal

6 0
3 years ago
A recipe used 1/4 cup of sugar for every 3 cups of flour. How much sugar was used for each cup of flour?
satela [25.4K]

Answer:

12 cups of sugar

Step-by-step explanation:

3÷0.25=12

1/4=0.25

3 0
3 years ago
How to do property eqautionseqautions
Tanya [424]

Answer:


Step-by-step explanation:


4 0
3 years ago
Jin drew 2 polygons. One of the polygons is shown. If Jin drew 9 sides and 9 vertices in all, which other polygon did he draw?
allsm [11]
Jin drew a honagon I which 9 sides and 9 vertices,Hope this helps!
8 0
3 years ago
Read 2 more answers
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