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2 years ago

5. Use the law of Cosines to find each missing sides. Round to the nearest tenth

Mathematics

1 answer:

stellarik [79]2 years ago

8 0

The measure of angle x will be 88 degrees. Then the correct option is C.

The complete question is attached below.

<h3>What is law of cosine?</h3>

Let there is a triangle ABC such that |AB| = a units, |AC| = b units, and |BC| = c units and the internal angle A is of θ degrees, then we have:

2ab cos θ = a² + b² – c²

The triangle is shown below.

Then the value of the variable x will be

2 · 7 · 10 · cos x = 7² + 10² – 12²

140 · cos x = 49 + 100 – 144

cos x = (149 – 144) / 140

x = 87.95 ≈ 88°

Then the correct option is C.

Learn more about law of cosines here:

brainly.com/question/17289163

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The first step to solve 2x - 5 = 13 is:

Triss [41]

Answer: First add 5 to both sides

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2 years ago

The density of a certain material is such that it weighs 3 grams per fluid ounce of

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About 101.44 grams per liter

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2 years ago

What is the slope of the table x= 2, 0, -2, -4 y= 6, 1, -4, -9

Murrr4er [49]

Answer:

The slope of the table is $m=\frac{5}{2}$ or $m=2.5$

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have the following ordered pairs

(2,6),(0,1),(-2,-4) and (-4,-9)

take two points

(2,6) and (-4,-9)

substitute in the formula

$m=\frac{-9-6}{-4-2}$

$m=\frac{-15}{-6}$

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6 0

3 years ago

A television network, Network A, is scheduling its fall lineup of shows. For the Tuesday night 8 p.m. slot, Network A has sel

Mazyrski [523]

Answer:

The number of viewers Network A expects will watch their show is 1.4 million viewers.

Step-by-step explanation:

The expected value is calculated by multiplying the possible outcomes by the probability of their occurrence and adding the results

Therefore, we have the expected value given by the following expression;

Estimated network A viewers where network B schedule top show = 1.1 million viewers

Estimated network A viewers where network B schedule a different show = 1.6 million viewers

Probability that Network B will air its top show = 0.4

Probability that Network B will air another show = 0.6

We therefore have;

Expected value, E of Network A viewers is therefore;

E = 1.1 × 0.4 + 1.6 × 0.6 = 0.44 + 0.96 = 1.4 million viewers.

Network A expects 1.4 million viewers will watch their show.

3 0

3 years ago

What is 5 minus 7/16

nekit [7.7K]

$Hello.
$
$Convert.$
$5 = 80/16$
$80/16 - 7/16 = 73/16$
$Simplify.$
$73/16 = 4 \frac{9}{16}$
$Thus, 5 - 7/16 = 4 \frac{9}{16}$
You're welcome.

3 0

3 years ago