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2 years ago

The table displays the scores of students on a recent exam. Find the mean of

1 answer:

5 0

The answer is 44.5. You would add all of the numbers shown above. This would get you a sum of 623. You would then count how many numbers there are in the question which is 14. Then divide 623 and 14 to get an average if 44.5

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you have decided to purchase a car for $15,699. the credit union requires a 10% down payment and will finance the balance with a

ycow [4]

Its D! Hope this helps :))

8 0

2 years ago

in the figure below trianglePQM and triangleQRP are right triangles. the measure of lineQM is 6 and the measure of lineQP is 8.

Kipish [7]

Answer:

Option 4 is correct. The length of PR is 6.4 units.

Step-by-step explanation:

From the given figure it is noticed that the triangle PQR and triangle MQR.

Let the length of PR be x.

Pythagoras formula

$hypotenuse^2=base^2+perpendicular^2$

Use pythagoras formula for triangle PQM.

$PM^2=QM^2+PQ^2$

$PM^2=(6)^2+(8)^2$

$PM^2=36+64$

$PM^2=100$

$PM=10$

The value of PM is 10. The length of PR is x, so the length of MR is (10-x).

Use pythagoras formula for triangle PQR.

$PQ^2=QR^2+PR^2$

$(8)^2=QR^2+x^2$

$64-x^2=QR^2$ .....(1)

Use pythagoras formula for triangle MQR.

$MQ^2=QR^2+MR^2$

$(6)^2=QR^2+(10-x)^2$

$36=QR^2+x^2-20x+100$

$36-x^2+20x-100=QR^2$ .... (2)

From equation (1) and (2) we get

$36-x^2+20x-100=64-x^2$

$20x-64=64$

$20x=128$

$x=6.4$

Therefore length of PR is 6.4 units and option 4 is correct.

3 0

2 years ago

Help me pleasee..........

frozen [14]

Answer:

V is 60 degree because the v is in the line of 60

5 0

3 years ago

Does anyone know what 0.03 divided by 18 is and could you pls show the work?

Flauer [41]

The answer is 0.0016 or 0.0017

6 0

3 years ago

Given two points (2, 7) and (1, -2) on a line, calculate the slope of the line.

Kipish [7]

Answer:

Step-by-step explanation:

Slope of line passing through (2, 7) and (1, -2) = (-2-7)/(1-2) = 9

7 0

2 years ago