sydnul0olaYasmithay sydnul0olaYasmithay

15-08-2016
Mathematics

contestada

Which pair of angles has congruent values for the sin x° and the cos y°?
Select one:
a. 40°; 140°
b. 40°; 80°
c. 40°; 50°
d. 40°; 40°

Respuesta :

andriansp andriansp

19-08-2016

We need to remember that cos y = sin (90-y)

So , the angles that has congruent values for sin x and cos y is : C. 40° and 50°

cos 40 = sin (90 - 50)

cos 40 = sin 40

hope this helps

Answer Link

Otras preguntas

Consider the exponential function f(x) = 3 * (2.5)* - 4

An atom in an excited state of 4.9 eV emits a photon and ends up in the ground state. The lifetime of the excited state is 2.1 × 10⁻¹³ s. What is the energy of

The number of arrangements of the letters of the word 'HAVANA' in which the two N’s do not appear adjacently isA. 40B. 60C. 80D. 100

What is the most important reason to know how to interpret graphs?

Symmetry argument integral one third is a concept in which area of physics? a) Classical mechanics b) Quantum mechanics c) Thermodynamics d) Electromagnetism

list employees (first and last Name s) and their salaries of employees who have a salary higher than their managers. Use a correlated subquery In the Where claU

After 10 minutes at 750°C, recrystallization should be complete. The hardness of the annealed sample should have been somewhat greater than that of the original

Telephone calls arrive at a doctor's office at a constant rate with an average waiting time of 32 minutes between calls. Let x denote the waiting time until the

A plane is meters in the air flying parallel to the ground at a speed of m/s and is initially kilometers away from a radar station. a) True b) False

A syllogism is an example of what? A. a state of being B. a logical structure C. the freedom paradox D. Christianized philosophy