1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erastovalidia [21]
3 years ago
15

Select the angle that correctly completes the law of cosines for this triangle. 72 + 252 – 2(7)(25)cos ___ = 242 A. 180° B. 90°

C. 16° D. 74°
Mathematics
1 answer:
meriva3 years ago
7 0

Answer:

x =76.45 degrees

Step-by-step explanation:

72 + 252 – 2(7)(25)cos _x__=242

combine like terms

324-350cosx = 242

subtract 324 from each side

-350x = -82

divide by -350

cos x = -82/-350

cos x = 82/350

take the arccos of each side

arccos (cos x) = arccos (82/350)

x =76.45 degrees


You might be interested in
7x=5+5x x equals what
dybincka [34]

7x=5+5x

x=5/2

It could also be 2 1/2

3 0
3 years ago
Which angles are supplementary angles?
Tpy6a [65]

Answer:

Supplementary angles are two angles with a sum of 18 0 ∘ 180 ^\circ 180∘ . A common case is when they lie on the same side of a straight line.

Answer - KJM and KJH

If i'm wrong please tell me

5 0
3 years ago
Complete the equation of the line through (-9,-9)(−9,−9)left parenthesis, minus, 9, comma, minus, 9, right parenthesis and (-6,0
saw5 [17]

Answer:

The equation of the line is;

y = 3x + 18

Step-by-step explanation:

We want to write the equation of the line through (-9,-9) and (-6,0)

we start by calculating the slope of the line

m = (y2-y1)/(x2-x1) = (0+ 9)/(-6+9) = 9/3 = 3

The general equation of the line is;

y = mx + c

y = 3x + c

To get c, we use any of the points

we substitute for example -6 for x and 0 for y

0 = 3(-6) + c

c = 0 + 18 = 18

So the equation of the line is;

y = 3x + 18

4 0
2 years ago
In the figure below, which term best describes point L?
Kipish [7]

The term that best describes the point L is (d) the centroid

<h3>How to determine the point L?</h3>

From the figure, we can see that:

The three lines drawn from point L divide the sides of the triangles into equal segments.

Also, the lines from point L are perpendicular to the sides.

The above description represents the definition of a centroid

Hence, the term that best describes the point L is (d) the centroid

Read more about centroid at:

https://brainly.in/question/4730518

#SPJ1

4 0
2 years ago
1. What percent of 25 is 14?
bagirrra123 [75]

Answer:56%

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Hozumi is working on a homework problem. She needs to solve an equation and has
    5·2 answers
  • Solve for x in the equation x^2-4x-9=29
    13·2 answers
  • When can a kite also be called a square?
    12·1 answer
  • Can someone please help me solve this system of equations
    14·1 answer
  • Adults tickets for the school musical sold for $3.50 and students tickets 11. sold for $2.50. Three hundred twenty-one tickets w
    13·1 answer
  • Please help me in this question.I need it right now!!!
    7·1 answer
  • Can anyone help me with this I need help
    10·1 answer
  • The distance Jane jogs in 20 minutes is 8 miles. At this rate, how many miles will he run in 60 minutes?
    12·2 answers
  • Aura built a scale model of a building using a scale in which 4 inches represents 60 feet. The height of the building is 420 fee
    8·1 answer
  • I NEED HELP ASAP PLEASEEEE
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!