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adell [148]
3 years ago
14

Convert the degree measurement to radians Express answer multiples of Pi 126°

Mathematics
1 answer:
alexandr1967 [171]3 years ago
4 0

we know that there are 180° in π radians, so how many radians are there in 126°?

\bf \begin{array}{ccll} degrees&radians\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 180&\pi \\ 126&x \end{array}\implies \cfrac{180}{126}=\cfrac{\pi }{x}\implies x=\cfrac{126\pi }{180}\implies \stackrel{simplified}{x=\cfrac{7\pi }{10}}

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What is the value of the expression<br> below when x<br> =<br> 6 and y<br> -4 ?
tester [92]

Answer:

-2

Step-by-step explanation:

Plug in the respected values for x and y.

Divide and get -2

8 0
2 years ago
Help asap plz ill give a gold medal. the label on cars antifreeze claims to protect the car between -30celsius and 130celsius. t
irga5000 [103]
The inequality would start out looking like this:
-30\ \textless \  \frac{5}{9} (F-32)\ \textless \ 130
Now it's just a matter of solving the inequalities simultaneously. Get rid of the fraction by multiplying everything by 9:
-270\ \textless \ 5(F-32)\ \textless \ 1170
Then distribute the 5 into the parenthesis:
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4 0
3 years ago
Which angle measures create a triangle with three different side lengths?
Contact [7]

The 3 angles of a triangle add up to 180 degrees. If all 3 sides are different in length then the angles are also different.

Its choice 1

4 0
3 years ago
1-73.
cricket20 [7]

36inch - 2 feet

72inch - 4 feet

144inch - 8 feet

18 X 2 = 36

1 + 1 = 2

18 x 4 = 72

1 x 4 = 4

18 x 8 = 144

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8 0
2 years ago
A boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12 feet from the dock, the
Natali5045456 [20]

Given :

A boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12 feet from the dock, the length of the rope form the boat to the dock is 3 feet longer than twice the height of the dock above the water.

To Find :

The height of the dock.

Solution :

This will make a right angle triangle as given in link below .

Now , applying Pythagoras theorem :

(2h+3)^2=h^2+12^2\\\\4h^2+9h+9=h^2+144\\\\h^2+4h-45=0\\\\(h-5)(h+9)=0

Now , h = 5 or h = -9 .

Now , height cannot be negative .

So , height of the dock is 5 ft .

Hence , this is the required solution .

8 0
3 years ago
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