4 years ago

Use the Distributive Property to simplify the expression. 7(8+x+2)

Mathematics

1 answer:

lisov135 [29]4 years ago

5 0

Answer:

7x + 50

The drawings will help

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Tommy notices that he reads 2/3 page in one minute. At that rate, how long will it take him to read 12 pages?

Mars2501 [29]

It would take him 18 minutes to read 12 pages

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3 years ago

Two angles in a triangle measure 27° and 36°. What is the measure of the third angle?

kifflom [539]

Answer:

117 degrees

Step-by-step explanation:

The sum of all angles in a triangle equals 180 degrees. If you know two of the degrees, you can subtract them to get the third.

180 degrees - 27 degrees - 36 degrees = 117 degrees

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3 years ago

1,256,667 times 9,254,876 equals 11,630,297,258,292

kotykmax [81]

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Step-by-step explanation:

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3 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.

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3 years ago

Lori has 25 new stamps but she already has 15 old ones how many does she have in total

KonstantinChe [14]

She would have a total of 40 stamps.

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3 years ago