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harkovskaia [24]
2 years ago
5

Just testing the app​

Mathematics
1 answer:
dimaraw [331]2 years ago
3 0
Noice Brainy is good becuase it gives answers out for free but there is a limit sometimes
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I need help on these questions please
Paraphin [41]

Answer:

Step-by-step explanation:

1). In ΔABC,

   For angle A as a reference angle,

   Opposite side of ∠A → BC

   Adjacent side of ∠A → AC

   Hypotenuse → AB

2). By using tangent ratio in ΔYWZ,

    tan(72°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

    tan(72°) = \frac{12}{x}

    x = \frac{12}{\text{tan}(72)}

    x = 3.899

    x ≈ 3.9

3). By using sine rule in ΔKNM,

    tan(x°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

    tan(x) = \frac{20}{58}

    x = \text{tan}^{-1}(\frac{20}{58} )

    x = 19.03

    x ≈ 19.0°

4). By applying cosine ratio in ΔJKF,

    tan(70°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

    tan(70) = \frac{60}{x}

    x = \frac{60}{\text{tan}(70)}

    x = 21.838

    x ≈ 21.8

7 0
3 years ago
Giving brainliest *easy*!!
Norma-Jean [14]

Answer:

452.16 square yards

Step-by-step explanation:

The equation for the SA of a sphere is A=4πr2

Substituting r = 6 yards : A= 4 * 3.14 * 6^2 = 452.16 square yards

6 0
3 years ago
Read 2 more answers
Multiply. 1 1/2 x 3 2/3
sasho [114]

Answer:

5.5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Given a:b and b:c, find a:b:c. Write the ratio in simplest form. a:b=6:10 and b:c=21:33
kherson [118]

Answer:

a:b = 6:10 = 3:5 = 21:35

b:c = 21:33 = 7:11 = 35:55

a:b:c = 21:35:55

7 0
3 years ago
QUICK
Anvisha [2.4K]
Multiply 20 and 12 then divide hope this helps :)
7 0
3 years ago
Read 2 more answers
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