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yanalaym [24]
3 years ago
10

PLEASE HELP NO TROLLS 5. Find the measure of angle A. *

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0
30 degrees. A triangle is 180. The right angle is 90.
90=7x-10+3x
add ten to both sides and combine like terms
100=10x simplify
10=x now substitute
3x
3(10)=30
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8 0
3 years ago
Da Shari wants to rearrange the four sweaters, two coats, and five jackets that are in her closet. If she puts a sweater first a
algol13

Solution:

Fabric possessed by Da. Shari = 4 Sweaters + 2 Coats + 5 Jackets= 11 in all

Arrangement that Da Shari wants to arrange 4 Sweaters + 2 Coats + 5 Jackets is to put  "a sweater first and a jacket last".

After putting a sweater first and jacket last , total fabric which needs to be arranged is (3 Sweaters + 2 Coats + 4 Jackets)=9 in all.

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4 0
3 years ago
Suppose x is a number such that 2x=x/2-6. Must it then be true that 3x=12. Explain your reasoning
KATRIN_1 [288]
2x = x/2 - 6.....multiply both sides by 2
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4x - x = -12
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x = -4

3x = 12......3(-4) = 12.....-12 = 12...false......so 3x = 12 is not true because x = -4



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