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earnstyle [38]
2 years ago
6

Solve the following system by using substitution. 4x+2y=18 y=x+3

Mathematics
1 answer:
Kay [80]2 years ago
7 0
X=2, y=5 hope it helps
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In the right triangle below, tanA = 0.45. What is the approximate length of AB?
garik1379 [7]
In the right triangle ABC wherein AB is the hypotenuse, BC is the opposite and CA is the adjacent tanA=0.45. The approximate length of AB which is the hypotenuse is 22, Opposite (BC) is 9 and Adjacent (CA) is 20. You need to use pythagorean formula in getting the length of AB.

YOUR ANSWER IS (22).
6 0
3 years ago
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Sin(13pi/2) in periodic function
Nataliya [291]
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13pi/2 can be simplified onto 6 pi/2, so it goes around the unit circle 6 times and left with pi/2. the coordinates of pi/2 is (0,1). the trigonometric function sin is y/r. since r is always 1 on the unit circle, the answer is the y value, in this case it is 1.
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3 years ago
What is 75 equal to?<br><br> A.) 7x 5<br> B. 5x5x5x5x5x5x5<br> C.7x7x7x7x7<br> D. 5 ‘7
wariber [46]

Answer:

C

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5 0
3 years ago
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7. What's the sum of 2/5 and 2/4?
NISA [10]

Step-by-step explanation:

2/5+2/4 (find common denominator)

The common denominator is 20

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2/4 is 10/20 (multiply by 5)

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If you simplify 18/20 this would by 9/10 if you divide by 2

so the total is 18/20 or 9/10 simplified

Hope this helps!!!!

Have a nice day :)

5 0
3 years ago
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If a triangle has three congruent sides, how many congruent angles does it have?
gayaneshka [121]

Answer:

60°

Step-by-step explanation:

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brainliest plsss:)

5 0
3 years ago
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