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
attashe74 [19]
3 years ago
15

Which of the following statements is true?

Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0

Answer:

The answer is d.

Step-by-step explanation:

As we know, sin x= cos (90°-x)

sin 18° = cos (90°-18°)

= cos 72°.

Similarly, sin 72°= cos (90°-72°)

= cos 18°

But, sin 55°= cos (90°-55°)

= cos 35°

You might be interested in
Solve the system of equations using substitution. Show your work<br> y=2x + 3<br> y=3x + 1
FrozenT [24]

Answer:

x=2 and y=7

Step-by-step explanation:

Step: Solvey=2x+3for y:

y=2x+3

Step: Substitute2x+3foryiny=3x+1:

y=3x+1

2x+3=3x+1

2x+3+−3x=3x+1+−3x(Add -3x to both sides)

−x+3=1

−x+3+−3=1+−3(Add -3 to both sides)

−x=−2

−x

−1

=

−2

−1

(Divide both sides by -1)

x=2

Step: Substitute2forxiny=2x+3:

y=2x+3

y=(2)(2)+3

y=7(Simplify both sides of the equation)

3 0
3 years ago
Answer quick please.
Brilliant_brown [7]

Answer

The Answer is A C D

Step-by-step explanation:

4 0
2 years ago
Please help with this math problem! The intersection of GK and HL is point P. Which triangle must be an isosceles triangle? *loo
Whitepunk [10]

None of the triangles listed has two equal base angles or two equal side lengths, therefore: D. No triangle is isosceles.

<h3>Properties of an Isosceles Triangle</h3>
  • An isosceles triangle has two base angles having equal angle measure.
  • The side lengths that are opposite each of the equal base angles are also congruent to each other.

Thus, none of the triangles listed has two equal base angles or two equal side lengths, therefore: D. No triangle is isosceles.

Learn more about isosceles triangle on:

brainly.com/question/11884412

5 0
2 years ago
A local theater charges $26 for each adult ticket and $17 for each student ticket. For one show, the theater took in $988 from a
mamaluj [8]
So what you would do is divide 988 by 26 and divide 731 by 17 and those two numbers you would add which gives you the amount of people that attended the performance
4 0
3 years ago
Read 2 more answers
LaToya had a large collection of basketball cards. She decided to give half of them to her friends, Aaron, and a fourth of them
Savatey [412]
1-1/2-1/4=1/4  If 75 is 1/4, then just divide to get the whole thing.  75/1/4=200
She had two hundred cards to start with.  Hope this helps!!!
5 0
3 years ago
Other questions:
  • Your cell phone plan gives you 500 minutes monthly. If you have used 310 minutes already and there is a week left in this month,
    15·2 answers
  • Suppose the time that it takes a certain large bank to approve a home loan is Normally distributed with mean (in days) μ and sta
    9·1 answer
  • For the function f defined b f(x)=x^2+2x+3 find f(-x), -f(x), and -f(-x).
    5·1 answer
  • W(x) = 2x + 5; Find w(x + 2)
    5·1 answer
  • the difference between seven times one number and three times a second number is 25. The sum of twice the first and five times t
    11·1 answer
  • The product of two consecutive negative integers is 1122. What are the numbers? The product of two consecutive negative integers
    6·1 answer
  • Simplify the expression. - 17b + a +235 + 240​
    9·2 answers
  • Help! <br> serious answers only please!!!
    11·2 answers
  • George and Lea each toss a tetrahedral die with faces numbered 1 through 4, and then multiply the two resulting numbers. If the
    11·1 answer
  • Please Solve this question. whoever answers my question gets 10 points with heart and brainlist (if there's two answers) Thank y
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!