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AVprozaik [17]
3 years ago
15

is social media company conducted research on the number of our high school students are on social media and the hours of leaf t

hey receive based on the scatterplot in the image what is the best prediction of the number of hours a high school school student sleeps when he spends 1 hour and social media​

Mathematics
1 answer:
vekshin13 years ago
4 0

Answer:

8.5 hours

Step-by-step explanation:

Draw a line of best fit to predict

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Sin θ = 12/37. Find tan θ.
ivann1987 [24]

Answer:

B

Step-by-step explanation:

Use SOHCAHTOA.

sinθ = \frac{opposite}{hypotenuse}

Opposite side length= 12

Hypotenuse length = 37

Find the adjacent side length (b) using the Pythagorean theorem.

12^2 + b^2 = 37^2

b = 35

tanθ = \frac{opposite}{adjacent} = 12/35

Choice B is the correct answer.

6 0
3 years ago
Read 2 more answers
In the expression 2(4x + 6) = 78, what is the number you divide by at the end to get the answer?
Ilya [14]

Answer:

8

Step-by-step explanation:

first we will just solve the expression 2(4x +6)=78

1. use destributive property with 2(4x + 6)

2*4x=8x

2*6=12

(8x+12)=78

2. now that the expression is simplified down we will subtract 6 by 6 to isolate it  

6-6+=0

78-6=72

3. now we can divide 8x by 8 also divide 78 by 8

8x/8=0

78/8= 9.75

4 0
3 years ago
Why is the ? in the proportion below equal to QR? Explain why.
Artyom0805 [142]

9514 1404 393

Answer:

  A) SQ is the geometric mean between the hypotenuse and the closest adjacent segment of the hypotenuse.

Step-by-step explanation:

In this geometry, all of the right triangles are similar. That means corresponding sides have the same ratio (are proportional).

Here, SQ is the hypotenuse of ΔSQT and the short side of ΔRQS.

Those two triangles are similar, so we can write ...

  (short side)/(hypotenuse) = QT/SQ = QS/RQ

In the above proportion, we have used the vertices in the same order they appear in the similarity statement (ΔSQT ~ ΔRQS). Of course, the names can have the vertices reversed:

  QT/SQ = SQ/QR . . . . . QS = SQ, RQ = QR

__

When this is rewritten to solve for SQ, we get ...

  SQ² = QR·QT

  SQ = √(QR·QT) . . . . SQ (short side) is the geometric mean of the hypotenuse and the short segment.

8 0
3 years ago
Helppppppo...................​
natulia [17]

Step-by-step explanation:

Using the kinematics equation,

v = u + at

where v = Final speed = 15m/s

u = Initial Speed = 30m/s

t = time taken = 10 seconds

a = acceleration.

Substitute v , u and t to find a.

15 = 30 + 10t \\ 10t = 15 - 30 \\ 10t =  - 15 \\ t =  - 15 \div 10 \\  =  - 1.5 \frac{m}{ {s}^{2} }

5 0
3 years ago
Please help me find the volume
AveGali [126]

Answer:

4.124mm^3

Step-by-step explanation:

4 0
3 years ago
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