3 years ago

Will mark 5 stars

Mathematics

1 answer:

lyudmila [28]3 years ago

8 0

R is also known as the correlation coefficient. Hence your statement is ...
B. False

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Varvara68 [4.7K]

Answer:

sure! whats the question?

Step-by-step explanation:

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3 years ago

Find the solutions for a triangle with a = 16, c =12, and B = 63º.

maks197457 [2]

Answer:

b. A = 71.6°; C = 45.40°; b =15.0

Step-by-step explanation:

The missing values can be found with the help of the Law of Cosine and properties of triangles:

Side b (Law of Cosine)

$b = \sqrt{a^{2}+c^{2}-2\cdot a \cdot c \cdot \cos B}$

$b = \sqrt{16^{2}+12^{2}-2\cdot (16)\cdot (12) \cdot \cos 63^{\circ}}$

$b \approx 15.022$

Angle A (Law of Cosine)

$\cos A = -\frac{a^{2} - b^{2}-c^{2}}{2\cdot b \cdot c}$

$\cos A = - \frac{16^{2}-15.022^{2}-12^{2}}{2\cdot (15.022)\cdot (12)}$

$\cos A = 0.315$

$A= \cos^{-1} 0.315$

$A \approx 71.639^{\circ}$

Angle C (Sum of internal angles in triangles)

$C = 180^{\circ} - 63^{\circ} - 71.639^{\circ}$

$C = 45.361^{\circ}$

Hence, the right answer is B.

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3 years ago

What is the remainder when 4x^3+2x^2-18+38/x-3

Trava [24]

Answer:

The remainder is 2

Step-by-step explanation:

Hope this helps uwu

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3 years ago

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m_a_m_a [10]

Answer:

If you use the 3x to the 2y is will make more sense if u turn them into numbers instead of letters cause letters dont make much sense somtimes.

Step-by-step explanation:

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3 years ago

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Russell is eating at a restaurant. His total bill comes to $45.10. If Russell decides to leave a tip that is approximately 25% o

olga2289 [7]

Answer:

$11.28

Step-by-step explanation:

45.10 x 0.25

4 0

2 years ago