Subtract t2 + 5t - 6 from t2 - 8t - 7. a) 13t - 1 b) 13t + 13 c) −13t - 1 d) −13t + 13

C

Step-by-step explanation:

t² - 8t - 7 - (t² + 5t - 6)

= t² - 8t - 7 - t² - 5t + 6 ( collect like terms )

= - 13t - 1 → C

c. 65°

step-by-step explanation:

we are given a triangle with two known angles, 62° and 53°, while the third angle x is unknown and we are to find its value.

we know that the sum of angles in a triangle is equal to a total of 180 degrees. so we can write it as:

x + 62° + 53° = 180°

solving to find the value of x:

x = 180 - (62 + 53) = 65°

therefore, the value of x in this triangle is 65°.

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.