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2 years ago

Tell whether the angles are adjacent or vertical. Then find the value

Mathematics

2 answers:

IceJOKER [234]2 years ago

6 0

Angles are vertical and
3x-4= 107
-4. -4
3x= 103
/3. /3
X= 34.333333

Valentin [98]2 years ago

3 0

The angles are adjacent but I don’t know the value for x I’m sorry

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Use the law of cosines to find the value of cos theta. round your answer to two decimal places

REY [17]

Answer:

The correct answer option is B. 0.21.

Step-by-step explanation:

We are to find the value of $cos \theta$ using the law of cosines.

We know that the formula of the cosine rule is given by:

$c ^ 2 = a ^ 2 + b ^ 2 - 2 a b cos C$

So substituting the given values in the above formula:

$10.9 ^ 2 = 5.8 ^ 2 + 10.5 ^ 2 - 2 (5.8) (10.5) cos C$

$118.81=33.64+110.25-121.8cosC$

$118.81 - (33.64+110.25) = -121.8cosC$

$118.81-143.86=-121.8cosC$

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7 0

2 years ago

Pls help me figure out the slope

cluponka [151]

Answer:

$m=\frac{-4}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-3, 1)

Point (2, -3)

Step 2: Find slope m

Substitute: $m=\frac{-3-1}{2+3}$
Subtract/Add: $m=\frac{-4}{5}$

7 0

2 years ago

39.39÷3 Show ur work plz

kiruha [24]

Answer:

13.13

Step-by-step explanation:

39.39 ÷ 3

13.13

There is not a lot of work

Looking at it we can tell that 3 will go into 3 one time, and 3 will go into 9 three times because:

1 x 3 = 3

3 x 3 = 9

3 0

2 years ago

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Zolol [24]

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2 years ago

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r-ruslan [8.4K]

Answer:

see picture below

Step-by-step explanation:

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1 year ago