Angles α and β are the two acute angles in a right triangle. use the relationship between sine and cosine to find the value of β if β < α. sin( x 2 + 2x) = cos(2x + 3x 2 ) a) 15° b) 37.5° c) 52.5° d) 75°

The answer is c hope this helps god bless and have a nice day sirr

B) 37.5

Step-by-step explanation:

Sine and cosine of complementary angles. therefore

(x/2 + 2x)+(2x+ 3x/2) = 90 which means x=15 then 15/2 + 2x = 37.5

2(15) + 3(15)/2 which means x=52.5 therefore B=37.5

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

a c

step-by-step explanation: