4 years ago

a triangle has the following measurements : a=19 b=25 c=31 use the law of cosines to find the missing measurements

1 answer:

4 0

Sides:
a = 19 m
b = 25 m
c = 31 m

Angles:
A = 37.7843 °
B = 53.7236 °
C = 88.492 °

Other:
P = 75 m
s = 37.5 m
K = 237.418 m2
r = 6.33114 m
R = 15.5054 m

You might be interested in

If 2x − 4(x + 1) = −12, evaluate x2 − 1.

Vlad [161]

2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
2x-4x-4=-12
-2x=-12+4
-2x=-8
x=-8/-2
x=4

2) we evalute x²-1
x²-1=4²-1=16-1=15

Answer: 15

6 0

3 years ago

Is it a function or non function?

bonufazy [111]

Answer:

function.............

6 0

3 years ago

Read 2 more answers

Jen traveled a distance of 170 miles in 2 hours and 45 min. Express her speed, in miles per hour to the nearest tenth

sweet-ann [11.9K]

Jen is going around 85mph

8 0

3 years ago

How can you tell if a mixture is homogenous or heterogeneous?

irinina [24]

A homogeneous mixture has the same uniform appearance and composition throughout. Many homogeneous mixtures are commonly referred to as solutions. A heterogeneous mixture consists of visibly different substances or phases. The three phases or states of matter are gas, liquid, and solid.

4 0

3 years ago

A car travels 14km in 25mins . Find out how far the car can travel in 5 hours if the speed remains the same ?

jekas [21]

<h3><u>Answer :- </u></h3>

168 km ...

<h3><u>Explanation :- </u></h3>

It is given that the car travels 14km in 25 minutes..

Now , assume that the distance the car travel in 5 hours be x..

Since 1 hour = 60 minutes..
5 hours = 300 minutes ..

• Thus , The two given statements are :-

14km -----------------> 25 minutes..
And, x km -------------> 300 minutes..

The distance travelled by car and the time taken by the car is directly proportional to each other....

$\frac{14}{25} = \frac{x}{300}$

$= x = 168km$

• Hence , Car can travel 168km in 5 hours ..

Hope this helps you :)

6 0

2 years ago