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2 years ago

What is the answer to 7x+5-8x

1 answer:

8 0

Combine like terms. Remember that like terms are terms that are completely the same excluding the coefficient.

7x-8x=-1x

Final answer: -x+5

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Which multiplication expression is equivalent to x+8/x2 ÷ 2x+16/2x2

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Answer:

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2 years ago

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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 are some reasons to live I could use them right now

Yuliya22 [10]

Answer:

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Step-by-step explanation:

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2 years ago

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If a person can carry 40 pounds, and a group of people want to carry 86 pounds of stuff, how many people are necessary to carry

aliina [53]

Answer:

3 people

Step-by-step explanation:

Because 40+40 =80 also equals 2 people so if they can only do 80 together then you would need another person even if its 6 more pounds then 80.

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2 years ago

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yulyashka [42]

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