Easy math. will give brainliest. luke is trying to lose weight. he currently weighs 250 lbs and is planning on losing 4 lbs a week. this can be modeled by the function f(x) = -4x + 250. his goal is to have lost 50 lbs in 10 weeks. is this possible? if not, what does he need to change? a) it is possible. b) it is not possible. he needs to lose at least 6 lbs a week. c) it is not possible. he needs to lose at least 5 lbs a week. d) it is not possible. he needs to lose at least 3 lbs a week.

C) It is not possible. He needs to lose at least 5 lbs a week

Step-by-step explanation:

This would not be possible. To know, you have to plug 10 into the function:

After getting this value, ou have to take it away from 250:

40 is less than 50, so he would have to lose more than 4 pounds a week

To see if losing 5 pounds is enough, replace the -4 from the function with a -5:

From here plug in 10 just like the previous time:

From here take 200 away from 250 to find the pounds lost in 10 weeks:

50 is equal to the goal of 50 pounds, so therefore, Luke nees to lose at 5 pounds a week

I hope this helps!

something that characterises a right triangle is the fact that we may use pythagoras' theorem to find any one of its sides given that we have the length of the other two sides. here, we have the length of the hypotenuse, √(87) yd, and one other side, √(23) yd, thus we can easily find the length of the remaining side using pythagoras' theorem as defined below:

c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

thus, given that c = √(87) and a = √(23), we may substitute these into the formula we defined above to get:

c^2 = a^2 + b^2

(√87)^2 = (√23)^2 + b^2 (substitute c = √87 and a = √23 into the equation)

87 = 23 + b^2 (evaluate (√87)^2 = 87 and (√23)^2 = 23 - remember that the square root of a number, squared will equal that very same number)

64 = b^2 (subtract 23 from both sides)

√64 = b (take the square root of both sides)

8 = b (evaluate √64 = 8)

therefor, the length of the unknown leg in the right triangle is 8 yd (first answer).

96 39 cause 135 -96=39 im smart (i used a calculater)