tewwify tewwify
  • 16-02-2021
  • Mathematics
contestada

If cos x= sin(20 + x)° and 0° < x < 90°, the value of xis

Respuesta :

nes037 nes037
  • 16-02-2021

Answer:

draw a right angle triangle

Step-by-step explanation:

Let one of the angles be A  

cos A = sin (90-A)  

90 - x - 20 = x  

2x = 70  

x = 35 degrees

Answer Link

Otras preguntas

State the vertex and axis of symmetry of the graph of y=ax2+c. The vertex is ( , ) The axis of symmetry is x=
Find 2 values for x for which f(x)=-28
How long will it take u to drive 120 miles at the speed of 15 miles per hour
Express $112 for 14 hours as a unit rate. A) $112/week B) $14/hour C) $8/hour D) $6/hour
Help me so confused?
Minne lives 200 miles away from her grandmother. It took her 5 hours to drive this distance. Write an equation that can be used to find R, the rate of travel??
necklace maker Nancy uses 32 beads for each necklace she makes. her latest shipment of beads had 1,799 beads in it. how many necklaces can she make
7.) based on what you have seen what is the overall chemical equation for cellular respiration?
the quotient of a number and 6 decreased by 10 is equal to 2
find the first 4 terms of the sequence defined by the explicit rule f(n)=7(n-1)-10. Is it an arithmetic sequence?