Seudónimo Seudónimo

09-03-2015
Mathematics

contestada

If ƒ(x) varies directly with x and ƒ(x) = 32 when x = -8, then what is ƒ(x) when x = 4?
A. -12
B. -1
C. -16
D. -8

Respuesta :

konrad509 konrad509

09-03-2015

[tex]f(x)=kx\\ 32=-8k\\ k=-4\\ f(x)=-4x\\\\ f(4)=-4\cdot4=-16[/tex]

Answer Link

Otras preguntas

Noa buys 6 items that each cost $4.25 and 3 items that each cost $6.75. How much does Noa spend in total? A$20.25 B$25.50 C$38.25 D$45.75

When Bill makes a sandwich, he may choose from among 3 kinds of rolls, 4 varieties of meat, and 2 types of sliced cheese. If he chooses one roll, one meat, and

Find the value of the missing coefficient in the factored form of 27f^3 + 125g^3. 27f^3+125g^3=(3f+5g)(9f^2-?fg + 25g)^2

If f = {(4, 2), (6, 1), (8, 4), (10, 2), (12,5)}, what is the range?

Can someone please help me out with this question??

What similarities, if any, do you think exist between a human’s reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?

What is the primary cause for the change in seasons? A. the tilt of Earth’s axis B. the distance of Earth from the Sun C. the position of the Moon between Ea

Determine the solution for x2 + 36 > 12x

What is the measure of the radius of circle m? see picture

A U.S. exporter has a Thai baht account receivable resulting from an export sale on June 1 to a customer in Thailand. The exporter signed a forward contract on