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defon
3 years ago
12

Find cos(ZA). Choose 1 answer:

Mathematics
1 answer:
lbvjy [14]3 years ago
3 0

Answer: option A. 24 / 25

Step-by-step explanation:

Cos (Z) = Adj / Hypo

Cos (Z) = 24 / 25

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The perimeter of an isosceles triangle is 65 centimeters. Find the length of the two equal sides when each is 10 centimeters lon
natita [175]

Answer: the length of each of the two equal sides is 25 centimeters

Step-by-step explanation:

Let x represent the length of each of the two equal sides. This means that the total length of the two longer sides is 2x.

Let y represent the length of the third side.

The perimeter of a triangle is expressed as the sum of the length of each side of the triangle. The perimeter of the isosceles triangle is 65 centimeters. It means that

2x + y = 65 - - - - - - - - - 1

Each of the equal sides is 10 centimeters longer than the third side. This means that

x = y + 10

Substituting x = y + 10 into equation 1, it becomes

2(y + 10) + y = 65

2y + 20 + y = 65

2y + y = 65 - 20

3y = 45

y = 45/3 = 15

Substituting y = 15 into x = y + 10, it becomes

x = 15 + 10 = 25

5 0
3 years ago
Which is the best approximation for the value 140
zzz [600]
140 is a composite number. Factor pairs: 140 = 1 x 140, 2 x 70, 4 x 35, 5 x 28, 7 x 20, 10 x 14. Factors of 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140. Prime factorization: 140 = 2 x 2 x 5 x 7, which can also be written 140 = 2² x 5 x 7
4 0
3 years ago
What is the Diference? Complete the equation​
horrorfan [7]

Answer:

-3/5

Step-by-step explanation:

First, make the mixed fraction into an improper fraction:

-1 2/5 = -(5/5 + 2/5) = -(7/5)

Note that two negatives = one positive:

- (-4/5) = + 4/5

Combine the terms. Subtract the numerators:

-(7/5) + (4/5) = (-7 + 4)/5 = -3/5

-3/5 is your answer.

~

7 0
3 years ago
Read 2 more answers
A. A game uses spinner A below. If a player spins a 1, he or she wins
rjkz [21]

Answer:

1/4

Step-by-step explanation:

There are 4 slot, he/she need 1 slot to win, so 1/4

3 0
3 years ago
Emily will earn $40 every time one of her songs is played in a commercial and she will earn $120 every time one of her songs is
Akimi4 [234]

Answer:

If you multiply 40$x9 you get 360$. Then you do 120$x2 you get 240$. All together you have 600$ from 2 movies and 9 commercials. That is the 11 commercials and movies they were talking about and there's your answer.

7 0
3 years ago
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