Mathematics, 16.07.2019 06:00, ronny80

If y varies directly as x^2 and y = 144 when x = 4, what is the value of y when x = -5? a. -225 b. 225 c. 180 d. -180 select the best answer from the choices provided

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:00, maddynichole2017

Solve |2x - 5| = 4 if anyone could , that would be great

Answers: 1

continue

Mathematics, 21.06.2019 16:50, lunamoon1

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Answers: 1

continue

Mathematics, 21.06.2019 19:00, nicolemaefahey

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Answers: 1

continue

Mathematics, 21.06.2019 19:20, SmolBeanPotato

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

Answers: 1

continue

Do you know the correct answer?

If y varies directly as x^2 and y = 144 when x = 4, what is the value of y when x = -5? a. -225 b....