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2 years ago

What is m∠Q ?

Mathematics

2 answers:

ddd [48]2 years ago

7 0

Unlike the previous problem, this one requires application of the Law of Cosines. You want to find angle Q when you know the lengths of all 3 sides of the triangle.

Law of Cosines: a^2 = b^2 + c^2 - 2bc cos A

Applying that here:

40^2 = 32^2 + 64^2 - 2(32)(64)cos Q

Do the math. Solve for cos Q, and then find Q in degrees and Q in radians.

n200080 [17]2 years ago

4 0

Answer:

I just took the test the answer is 30.8

Step-by-step explanation:

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Help Please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Kamila [148]

Answer:

x = 80°

Step-by-step explanation:

Angle on a straight line = 180°

(x + 40)° + (x - 20)° = 180°

x + 40° + x - 20° = 180°

2x + 20° = 180°

2x = 180° - 20°

2x = 160°

x = 160°/2

x = 80°

Check:

(x + 40)° + (x - 20)° = 180°

(80° + 40°) + (80° - 20°) = 180°

120° + 60° = 180°

180° = 180°

3 0

2 years ago

What is the slope of the line that contains the points (0,-8) and (4,1)?

eduard

The slope of the line is:(1-(-8))/4-0=9/4

7 0

2 years ago

Solve for x. Round all answers to the nearest tenth. 9 X 12

maria [59]

Step-by-step explanation:

x=54

use pyth then the other line = 15

then 15÷90 = 9÷x

then x = 54

8 0

3 years ago

Read 2 more answers

What is the value of x? 4. = 50-12 Enter your answer in the box. x =

Dimas [21]

The question doesn’t make much sense. Do you mean x=50-12? If so, x=38

3 0

2 years ago

A coffee pot holds 2quarts of coffee. How much is this in cups

Kobotan [32]

Answer:

8 cups

Step-by-step explanation:

1 quart = 4 cups

2 quarts = x cups

x = # of cups

$\large \textsf{$\dfrac{1}{2}$} = \large \textsf{$\dfrac{4}{x}$} \implies \normalsize \textsf{cross multiply}\\\\\large \textsf {$x$ = 8}$

Therefore, there are 8 cups in 2 quarts.

Hope this helps!

3 0

1 year ago