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
almond37 [142]
2 years ago
5

In triangle ABC, AC=13, BC=84, and AB=85. Find the measure of angle C

Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
3 0

Answer:

90°

Step-by-step explanation:

Angle C = arccos((84²+13²-85²)/(2×84×13))

= arccos(0/2184)

= arccos(0)

= 90°

Answered by GAUTHMATH

You might be interested in
Sophia took home 2/9 of the pizza that was left over from a party. The amount she took represents 1/2 of a whole pizza. The equa
andre [41]

Answer:

19/5

Step-by-step explanation:

i used a calculater

5 0
3 years ago
Nichole's rotating sprinkler waters her lawn up to a radius of 7 feet. What is the maximum number of square feet of lawn Nichole
Marysya12 [62]

Answer:

153.9 ft²

Step-by-step explanation:

Given that:

Radius of circular lawn = 7 feets

To obtain the maximum number of square feet of lawn Nichole can expect the sprinkler to cover ; find the area of the lawn

Area of a circle, A = πr²

A = π * 7 * 7

A = 153.93804

A = 153.9 ft²

5 0
2 years ago
Writing and Solving an Equation to Find Negative Integers Two negative integers are 5 units apart on the number line, and their
Shtirlitz [24]

Answer:

-23

Step-by-step explanation:

Let first negative integer = x

The second = x +5

Their product = 126, hence,

x * (x +5) = 126

x^2 + 5x = 126

x^2 + 5x - 126 = 0

Two numbers whose product gives - 126 and sun gives 5

x(x + 14) - 9(x+14) =0

(x - 9) = 0 or (x + 14) = 0

x = 9 or x = - 14

Since x is said to be a negative integer,, the our x = - 14

First integer = - 14

Second integer = (x + 5) = (-14 + 5) = - 9

Sum of both integers :

-14 + - 9 = - 23

3 0
3 years ago
What is the surface area of this design? Please show work!
choli [55]
There are 8 faces on the figure.
There are two of the same sides so we can multiply that by 2. That side equals 76 in. 76 x 2 = 152.
Then, there is another side that equals 4 x 4 which is 24.
Another side equals 4 x 6 which is 24.
Another one equals 6 x 6 which is 36.
Another side equals 6 x 6 which also equals 36.
Another side equals 10 x 6 which is 60.
The last side is 10 x 6 which equals 60.
Which should add up to 392 in. x^{2}
4 0
3 years ago
Raman has two daughters deepa and anju.Present age of raman is nine more than that twice the sum of deepa and anju.Five years he
Leya [2.2K]
The age of the Raman is 9.
7 0
3 years ago
Other questions:
  • 40 POINTS AVAILABLE!!!!!<br> Look at the pic below
    7·1 answer
  • 24 POINTS!!!!!!!!
    11·1 answer
  • brandy took 3 friends out for dinner. the cost of the meals was 46.50 . she left a 20% tip. what was the total cost including th
    9·1 answer
  • What is the value of the underlinef digit in the following number 2,983,785
    8·2 answers
  • Suppose that a Coke/Pepsi survey was conducted of 40 randomly selected individuals from Gainesville. Thirty people selected Coke
    15·1 answer
  • Find the missing exponent.
    6·2 answers
  • Find the missing length of the triangle 12 8 Y
    15·1 answer
  • The midpoint of AB is M(-2, 1) If the coordinates of AA are (-3, -5) what are the coordinates of BB?
    11·2 answers
  • Hey I need help The radius of a circle is 8 cm. Find its area in terms of π
    8·1 answer
  • I NEED HELP!!! PLS DUE TODAY!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!