4 years ago

Find the radius of each circle. 17) circumference = 62.8 mi

Mathematics

1 answer:

kirill [66]4 years ago

3 0

IM IN 6TH GRADE. I DUNNO?

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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.

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3 years ago

Tell me something you have wanted to say but never told anyone.

Stells [14]

I’m not that smart i just get answers off the internet

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ABC Insurance offers an annuity with a minimum interest rate of 4% APR for

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Based on the graph what are the approximate solutions to the equation -2x+4=(0.25)x?

konstantin123 [22]

4=2.25x add 2x on both sides
1.78=x subtract 2.25 on both sides

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3 years ago

If f(x)equals 2xminus5 and k(x)equals f(xplus3), write the equation for k(x).

ololo11 [35]

F(x)=2x-5
k(x)=f(x+3)=2(x+3)-5=2x+6-5=2x+1

k(x)=2x+1

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