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
Art [367]
3 years ago
12

If r and t are the measures of two acute angles so that r + t = 90° , then cos r equals:

Mathematics
1 answer:
Genrish500 [490]3 years ago
6 0
The answer is 3 okomokko
You might be interested in
In 2015, the price of a business math text rose to $200. This is 8% more than the 2014 price. What was the old selling price?
lakkis [162]
Old price=new price/(1+inflated rate)
=2000/(1+1.08)
=185.19 (approximately)
7 0
3 years ago
PLEASE HELP. What are some facts about the number 99 that would make you like it as your favorite number? Thank you in advance.
GalinKa [24]
1: That if you divide it by 3 you can get 33.
2. It's one away from 100. 
3. Some factors are 1, 3, 9, and 11.
5 0
3 years ago
4x + 5y = 12 and 3x + 4y = 9.25 . Solve for systems of equations
masha68 [24]

Answer:

y=1

x=7/4

Step-by-step explanation:

4x + 5y = 12

3x + 4y = 9.25

4x + 5y = 12

12x + 16y =37

-12x -15 y =-36

12x + 16y =37

y=1

x=7/4

8 0
3 years ago
Read 2 more answers
It is a 375-mile drive from San Francisco to Los Angeles. A map scale shows 2 centimeters equaling 10 actual miles. How long is
Arte-miy333 [17]
18.75 centimeters because it’s 37.5 divided by 2
6 0
3 years ago
6²-26+3
kifflom [539]
I’m pretty sure it’s d
7 0
3 years ago
Read 2 more answers
Other questions:
  • HELP PLEASE 50 points!!! Statistics
    14·2 answers
  • Any one please help thank you
    8·1 answer
  • David is preparing a report to show
    13·2 answers
  • At a certain middle school, there are 26 students per teacher in every homeroom. is the total number of students proportional to
    13·2 answers
  • Find the value of x?<br> x = ___ degrees
    11·2 answers
  • Just need help 1-3 because it’s not easy
    13·1 answer
  • What is the first step to solving the following equation?5x –11 = 42
    7·1 answer
  • There are 2 questions PLease help need it quickley will give brainiest
    11·1 answer
  • A little boy stands on a carousel and rotates around the road four times. The distance between the little boy and the center of
    11·1 answer
  • (3x²+3x+5)+(7x²-9x=8)=10x²-12x=13
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!