Use the figure shown to determine which trigonometric ratio is incorrect?

a. sin 30°= 4/8
b. cos 60°=4/8
c. sin 60°= square root of 48 over 8
d. tan 30°= square root of 48 over 8

Option d is incorrect.

Step-by-step explanation:

See the diagram attached.

a. . Hence, this is correct.

Here, sin Ф is given by perpendicular divided by the hypotenuse.

b. . Hence, this is also correct.

Here, cos Ф is given by base divided by the hypotenuse.

c. . Hence, this is also correct.

d. . Hence this is not correct.

Here, tan Ф is given by perpendicular divided by base.

Therefore, option d is incorrect. (Answer)

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

46 dollars is the answer.

step-by-step explanation:

6*6 = 36,         36+10=46