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Citrus2011 [14]
2 years ago
6

Please help............

Mathematics
2 answers:
BartSMP [9]2 years ago
5 0

Answer:

c

Step-by-step explanation:

My name is Ann [436]2 years ago
4 0

Answer:

Correct

Step-by-step explanation:

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G hiugw getwiuh gbrul giluhbgflkgfnj
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Simplify. –2 • (4) – 3 • (–5) = A. 55 B. 7 C. –23 D. –120
stepan [7]
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3 0
3 years ago
Solve.
lions [1.4K]

Answer:

b=9,a=12

Step-by-step explanation:

I solved by substitution:

b = 3/4a  ---> plug this into the other equation

a + b = 21   is now    a + 3/4a = 21

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6 0
3 years ago
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Hey need some help with this problem, its trigonometry with right triangles using SohCahToa if you can give me a hand it would b
Firlakuza [10]

For the given triangle, the value of x equals 30.9892 units.

Step-by-step explanation:

Step 1:

In the triangle, the angle is 40°, the opposite side has a length of 26 units, the adjacent side has a length of x units while the hypotenuse is not given.

To determine the value of x, we determine the value of the tan of the given triangle.

To calculate the tan of angle A we divide the opposite side's length by the the adjacent side's length.

tan A = \frac{oppositeside}{adjacent side}.

Step 2:

The length of the opposite side = 26 units.

The length of the adjacent side = x units.

tan A = \frac{oppositeside}{adjacent side}, tan 40 = 0.8390, tan A = \frac{26}{x} .

0.8390 = \frac{26}{x} , x = \frac{26}{0.8390} = 30.9892.

So x measures 30.9892 units.

6 0
3 years ago
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