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Mars2501 [29]
3 years ago
9

Help with how to do this angle problem

Mathematics
2 answers:
LuckyWell [14K]3 years ago
8 0

Answer:

75

Step-by-step explanation:

180-105=75

shutvik [7]3 years ago
6 0

Answer:

122

Step-by-step explanation:

Angles of a quadrilateral add up to 360 then let the angle with x be y

So

119+78+105+y=360

302+y=360

y=360-302

y=58

Now

x+y=180 (angles on a straight line)

x+58=180

x=180-58

x=122

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Vesnalui [34]

Answer:

1. (x+3)(x+1)

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3. (r-2)(r-1)

4. (x-5)(x-1)

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6. (x-11)(x-11)

7. (t-6)(t+2)

8. (p-8)(p-8)

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5 0
3 years ago
Tara standing 20 feet from a tree and the angle of elevation is 72°. About how tall is the tree?
Zinaida [17]

Answer:

Approx 61.554 feet

Step-by-step explanation:

Since we are dealing with the opposite and adjacent sides, we will use tangent as our ratio.

Since the angle of elevation is 72 degrees, the left side of our equation is tan(72).

The right side of the equation is opposite over adjacent.

x/20

Set these equal to each other.

tan(72) = x/20

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20 tan(72)=x

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4 0
3 years ago
Simplify -5(20 + 3).
sammy [17]
Whenever a number is beside a parenthesis without a sign it means multiplication. So you would use PEMDAS work in parenthesis then exponents, multiplication (from left to right) addition and subtraction (from left to right). so you would add 20+3 and get 23 then multiply that by -5 to get -115 as your answer.
4 0
3 years ago
Read 2 more answers
Simplify the following expression
vova2212 [387]

Answer:

A.( 3m+28)/4

Step-by-step explanation:

So basically since it is addition we just add 9 to -2 to get 7. So then the equation becomes (3m/4)+7. Then we will multiply 7 by 4 to get common denominator so it will be (3m+(7*4))/4 which is (3m+28)/4.

7 0
3 years ago
Anjali paid $8 for a salad. She now has<br> $37. With how much money did she start?
sleet_krkn [62]

Answer:

Below.

Step-by-step explanation:

37+8= 45

45-8=37

so 45.

8 0
3 years ago
Read 2 more answers
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