3 years ago

Elsa needs to memorize words on a vocabulary list for French class. She has memorized

Mathematics

2 answers:

Ganezh [65]3 years ago

6 0

24 words on the list

kondaur [170]3 years ago

3 0

There are 24 words on the list. You just have to multiply 12 by 2.

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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

In the problem 4x + 10 list a term, factor, coefficient, and constant.

kifflom [539]

term- 4x and 10

This is because to be a term it has to be + or -

Factor- 4x+10

This is because that is what is happening in the problem

Coefficient- 4y

I don't know what the constant would be, But I hope that this helps you

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3 years ago

The sum of two numbers is 55. The larger number is 19 more than the smaller number. What are the numbers?

n200080 [17]

Answer:18

Step-by-step explanation:

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3 years ago

Plz solve i need this done today

garik1379 [7]

D,A,B,C i think this is correct !

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3 years ago

This month you make $3,881 from liquor salesfrom food, and from your gift shop. your monthly sales goal is $25,000, did you meet

katrin2010 [14]

Answer:

Step-by-step explanation:

If you add all the sales you do not meet your goal of $25,000

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2 years ago