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3 years ago

Solve the system of equations.x=y−98x−y=0X=?Y=?

Mathematics

1 answer:

Nataly [62]3 years ago

3 0

Answer:

X = 9/7

Y = 72/7

Step-by-step explanation:

You need to subtract equation 1 by equation 2 to get rid of y. Then substitute your answer to find y.

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Gerardo made the following scores on his first semester science tests: 80, 85, 85, 87, 97, 100. Which measure would he use in su

Elza [17]

The mean is 89 the median is 86 the mode is 85 Hope this helps!

(technically the mean is like 88.7 so I just rounded up to get 89)

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3 years ago

What is the area of a parallelogram with a base of 20 cm and a height of 12 cm?

AURORKA [14]

62.8cm^2 I think that's the answer

6 0

4 years ago

Help me and i’ll mark you brainliest plus you get 20 points !!!!

Anton [14]

Answer:

Angle bisector

Step-by-step explanation:

Find the measure of the angle COA. By angle addition postulate,

$m\angle COX=m\angle AOX+m\angle COA$

From the diagram,

$m\angle COX=80^{\circ}\\ \\m\angle AOX=40^{\circ},$

then

$80^{\circ}=m\angle COA+40^{\circ}\\ \\m\angle COA=80^{\circ}-40^{\circ}=40^{\circ}$

Find the measure of the angle BOA. By angle addition postulate,

$m\angle BOX=m\angle AOX+m\angle BOA$

From the diagram,

$m\angle BOX=60^{\circ}\\ \\m\angle AOX=40^{\circ},$

then

$60^{\circ}=m\angle BOA+40^{\circ}\\ \\m\angle BOA=60^{\circ}-40^{\circ}=20^{\circ}$

Find the measure of the angle COB. By angle addition postulate,

$m\angle COX=m\angle BOX+m\angle COB$

From the diagram,

$m\angle BOX=60^{\circ}\\ \\m\angle COX=80^{\circ},$

then

$80^{\circ}=m\angle COB+60^{\circ}\\ \\m\angle COB=80^{\circ}-60^{\circ}=20^{\circ}$

This means, the measures of angles COB and BOA are the same and are equal half the measure of angle COA, so angles COB and BOA are congruent. This means, the ray OB is the angle bisector of angle COA

6 0

3 years ago

Help maybe , I appreciate it ???

algol [13]

The answer is 48 because if a right angle is 90 degrees and angle one 42 then you do 90-42 and you get 48 for angle 2.

3 0

3 years ago

6=p*36. <br><br> **HINT** 17% IS NOT THE ANSWER AS TESTED!

grin007 [14]

Divide both sides by 36
6/36 = p
1/6 = p

3 0

4 years ago