I have a homework problem on functions, its a expondental problem how do i right a equation for it

Answers

Answer 1

Answer: if the teacher said to yes but if she didnt no but just incase show your proof so that the teacher knows your follopwing in class

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The cost of a telephone call is 75 cents plus 25 cents per minute. Write an algebraic expression that models the cost of a telephone call that lasts t minutes.

Answers

y=.75x+.25

.75(1)+.25= $1.00
x= the number of phone calls y= the total

75 + 25 x t = Answer

Example:
t= 2 minutes
75 + 25 x 2 = $2.00

Help me again and ty.

Answers

I believe the answer is c

Write 22.056 in an expanded form

Answers

We know the first place after decimal is tenths

The second place after decimal is hundredths

The third place after decimal is the thousandths place

So for 0.056

0 is at the tenths place

5 is at the hundredths place

and 6 is at the thousandths place

Expanding 22.056 we get

22.056 = 20 + 2 + 0.05 + 0.006

22.056 = $20+2+(5)/(100)+(6)/(1000)$

20.000 + 2.000 + .050 +.006

If x = − 8 and y = 2, evaluate the following expressions: (4y)² −(2x)² =

Answers

Answer:

-192

Step-by-step explanation:

x = -8

y = 2

(4y)² −(2x)² =

(4(2))² −(2(-8)² =

(8)² − (-16)² =

64 − 256 = -192

Determine which ordered pair is a solution of y=8x.A. (0,8)
B. (-1,8)
C. (1.5,10)
D. (2,16)

Answers

we know that

If the ordered pair is a solution of the equation, then the ordered pair must satisfied the equation

we will proceed to solve each case to determine the solution of the problem

we have

$y=8x$ -------> equation $1$

case a) $(0,8)$

$x=0\ny=8$

For $x=0$

substitute the value of x in the equation $1$ and then compare the values of y

$y=8*0=0$

$0\neq 8$

The ordered pair case a) is not solution

case b) $(-1,8)$

$x=-1\ny=8$

For $x=-1$

substitute the value of x in the equation $1$ and then compare the values of y

$y=8*(-1)=-8$

$-8\neq 8$

The ordered pair case b) is not solution

case c) $(1.5,10)$

$x=1.5\ny=10$

For $x=1.5$

substitute the value of x in the equation $1$ and then compare the values of y

$y=8*1.5=12$

$12\neq 10$

The ordered pair case c) is not solution

case d) $(2,16)$

$x=2\ny=16$

For $x=2$

substitute the value of x in the equation $1$ and then compare the values of y

$y=8*2=16$

$16=16$

The ordered pair case d) is a solution

therefore

the answer is

$(2,16)$

y = 8x
y = 8(2)
y = 16
(x, y) = (2, 16)

The answer is D.

68 days increased by 75%

Answers

68×75=5100
5100÷100=51
68+51=119

answer-119
hope it helps

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