3) tan(?) = 9/21
? = arctan(9/21)
? ≈ 23.20°
4) sine and cosine are equal for complementary angles.
θ = 90° - 32°
θ = 58°
7x+1+10x-9=19x-18
add like terms
17x-8=19x-18
add 18 to both sides and subtract 17x from both
10=2x
divide by two
x=5
Step-by-step explanation:
cos=ROQ
Sin=QOP
HOPE THIS HELP
Answer:
k = 10
Step-by-step explanation:
The external angle of a triangle is equal to the two opposite interior angles.
∠MYZ is an exterior angle of the triangle, thus
4k + 5 + 6k + 10 = 115, that is
10k + 15 = 115 ( subtract 15 from both sides )
10k = 100 ( divide both sides by 10 )
k = 10
Answer: 2 1/2 inches
Step-by-step explanation:
Michael puts 3 beads next to each other which are on a peice of string to make a bracelet. A bead has a width of 5/6 inch. Total width of the three beads will be the number of beads multiplied by the width of each bead. This will be:
= 3 × 5/6
= 15/6
= 2 1/2
The total width of the bead are 2 1/2 inches