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2 years ago

Reflect B (2,7) over the y-axis

1 answer:

3 0

Q: Reflect B (2,7) over the y-axis

Answer:
(-2,7)

Hope this helps! Feel free to comment on this reply if you have any questions. :)

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In triangle ΔABC, ∠C is a right angle and CD is the height to

Zina [86]

Answer:

$m\angle CDB=90\\m\angle CBD=90-\alpha\\m\angle BCD=\alpha\\\\m\angle CDA=90\\m\angle CAD=\alpha\\m\angle ACD=90-\alpha$

Step-by-step explanation:

The triangles are drawn below.

CD is perpendicular to AB as CD is height to AB.

Therefore, angles $m\angle CDB=m\angle CDA=90$ °

So, triangles ΔCBD and ΔCAD are right angled triangles.

Now, from the right angled triangle ΔABC,

$m\angle A+m\angle B =90\\\alpha+m\angle B=90\\m\angle B=90-\alpha$

From ΔCBD,

$m\angle CBD$ is same as $m\angle B$ .

So, $m\angle CBD=90-\alpha$

$m\angle BCD+m\angle BDC =90\\m\angle BCD+90-\alpha=90\\m\angle BCD=\alpha$

Now, from ΔCAD,

$m\angle CAD$ is same as $m\angle A$

So, $m\angle CAD=\alpha$

$m\angle CAD+m\angle ACD =90\\\alpha+m\angle ACD=90\\m\angle ACD=90-\alpha$

Hence, the unknown angles of both the triangles are:

$m\angle CDB=90\\m\angle CBD=90-\alpha\\m\angle BCD=\alpha\\\\m\angle CDA=90\\m\angle CAD=\alpha\\m\angle ACD=90-\alpha$

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3 years ago

Which is the ratio 12 to 27 expressed as a fraction in lowest terms

raketka [301]

Answer:

4/9

Step-by-step explanation:

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3 years ago

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51450÷98 can u show me how

Andreas93 [3]

51450 divided by 98
is 525 with remainder 0

0 0 5 2 5
9 8| 5 1 4 5 0
0
5 1
0
5 1 4
4 9 0
2 4 5
1 9 6
4 9 0
4 9 0
0

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3 years ago

What is the measure of F?<br> 10

kolbaska11 [484]

Answer:

do you have a picture?

Step-by-step explanation:

I could use a picture

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3 years ago

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Which is an x-intercept of the continuous function in

arsen [322]

It’s (-1,0), because

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