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krok68 [10]
3 years ago
14

Help me pls, BRAINEST AWARD

Mathematics
1 answer:
Natali [406]3 years ago
4 0

Answer:

x = 3.7

Step-by-step explanation:

By applying sine ratio for the given angle B,

sin(39°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

sin(39°) = \frac{AD}{AB}

0.6293 = \frac{AD}{7}

AD = 4.41

By applying tangent ratio for the given angle C,

tan(50°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

1.19 = \frac{AD}{x}

1.19 = \frac{4.41}{x}

x = 3.7

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Hello : 
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3 years ago
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Answer:

Quadratic Equation:

3x^2=2x +5

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\Delta=\left(-2\right)^2-4\cdot \:3\left(-5\right)

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State that:

b^2-4ac

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b^2-4ac >0:\text{The equation has 2 real solutions}

By the way, solving the equation given:

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$x=\frac{2\pm\sqrt{64}}{6}$

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3 years ago
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Answer:

r =2.9985yd

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2(3.1415926)r = 18.84 yd

6.2831r = 18.84yd

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2 years ago
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<span>Let R=A AND (NOT B)] OR (NOT B)
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