A cell phone company charges $400 for a new phone and $50 for a monthly plan. If C (t) is a rational function that represents the average monthly cost of owning the cell phone, what is the range of the function?
R: ℝ
R: (–∞, ∞)
R: (0, 400)
R: (50, 450)

Answers

Answer 1

Answer:

its c

Step-by-step explanation:

Answer 2

C. R: (0, 400)

What is a rational function?

In mathematics, a rational function is any function that can be described by using a rational fraction, which is an algebraic fraction such that each the numerator and the denominator are polynomials. The coefficients of the polynomials need no longer be rational numbers; they'll be taken in any field k.

A rational function is one that can be written as a polynomial divided by a polynomial. for the reason that polynomials are defined everywhere, the domain of a rational feature is the set of all numbers except the zeros of the denominator. example 1. f(x) = x / (x - 3). The denominator has only one 0, x = 3.

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Related Questions

Hi! ❤️ sending love to all

I’m wishing for some super needed help here

Answers

Answer:

SEE THE IMAGE FOR ALL ANSWERS.

Which of the equations below could be the equation of this parabola?
Vertex
(0, 0)
0
10
ОА
A. x = - 1 2 3 4
B. y = - 1/2 x ²
C. x = 1 / 4²
Do y = x

Answers

Answer:

the answer is "B"

the "a" (as in ax^2) is negative thus the parabola "goes downward"

Step-by-step explanation:

The equation of parabola is,

y = - 1/2x²

What is Parabola?

A parabola is a U-shaped plane curve where any point is at an equal distance from a fixed point (known as the focus) and from a fixed straight line, which is known as the directrix.

We have to given that;

In a parabola,

Vertex = (0, 0)

Since, We know that;

Standard form of equation of parabola is,

y = a (x - h)² + k

Where, (h, k) = (0, 0) = vertex

Hence, We get;

y = a (x - 0)² + 0

y = ax²

Here, A point on parabola is, (2, - 2)

- 2 = a (2)²

a = - 2 / 4

a = - 1/2

Hence, The equation of parabola is,

y = - 1/2x²

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If $875 is put in the bank and each year the account carns 9% simple interest, then how much interest will be earned in
four years?

Answers

Answer:

$315. 9% of 875 is 78.75. 9% x 4 years = 36%. 36% of 875= 315. (bonus: 875 + 315 = 1,190.)

Step-by-step explanation:

hope this helps

What is the radius of the circle? Example how you know..

Answers

Answer:

r=7

Step-by-step explanation:

C is at x=1 at circle side is at 8

8-1= 7

so, r=7

Answer:

The radius of the circle is 7 units.

Step-by-step explanation:

Radius is the measure from the center point of a circle to a point on the outside edge. Since you have coordinates, you can find the radius using distance formula.

You could also just count how many units are between the center and the edge to get 7 units because 8 - 1 = 7

2.

Match the graph of the function with the function rule.

A. [tex]y=\frac{1}{4}[/tex]·4^x

B. y = 1 • 4x

C. [tex]y=\frac{1}{2}[/tex]·4^x

D. y = 2 • 4x

Answers

Answer:

C) [tex]y = \frac{1}{2}[/tex] × [tex]4^x[/tex]

Answer:

C.    y= 1/2*4^x

Step-by-step explanation:

Subtract 4 3/4 - ( -1 1/12 ) Enter your answer as a simplified mixed number by filling in the boxes

Answers

Answer:

The answer is 5 5/6

Step-by-step explanation:

A restaurant owner collected data about the types of items customers ordered. The table shows the probability that a customer will order each type of item when they visit the restaurant. Move words to the table to describe the likelihood of a customer ordering each item. Soft Drink Dally Special Dessert Appetizer 0.80 0.25 0.48 0.06 Probability that a customer will order Likelihood that a customer will order Certain Impossible Likely Unlikely Neither-likely nor unlikely​

Answers

Using probability concepts, it is found that the matchings are:

Soft Drink - Likely.Dally Special - Unlikely.Dessert - Neither likely nor unlikely. Appetizer - very unlikely.

------------------------

Probabilities assume decimal values between 0 and 1.The closer the probability is to 1, the more likely the event is to happen.

------------------------

0.8 probability of a customers ordering a Soft Drink, which is a close value to 1, so Soft Drink - Likely.0.25 probability of a customer ordering a Dally Special, which is considerably less than 0.5, thus Dally Special - Unlikely.0.48 probability of a customer ordering a Dessert, which is around 0.5, thus Dessert - Neither likely nor unlikely.0.06 probability of a customer ordering an Appetizer, which is quite close to 0, so Appetizer - very unlikely.

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In a class of twenty-seven students, twelve are boys. What part of the
class consists of boys?

Answers

12/27 boys are in the class

What is the value of p?
A.60°
B. 40°
C. 90°
D. 50°

Answers

Answer:

D . p = 50

Step-by-step explanation:

To find the value of p we first need to find the values of inner angles

180 - 140 (linear pair)

= 40

180 -90 (linear pair)

= 90

now use angle sum property of triangle

40 + 90 + p = 180

130 + p = 180

p = 180 - 130

p = 50

I think the answer is 90

Geometry Review Homework

Answers

The answer would be 10 I believe.

Please answer this in less then 5 mins

Which is the best estimate for the capacity of a glass vase?

A. 200 ml
B. 500 ml
C. 5,000 ml
D. 5,000 kl

Answers

I think it is A, a glass of water can contain about 200-250 ml.

Answer:

D, x = 3

Step-by-step explanation:

to know if a line is parallel, we need to know what kind of line x = 6 is

we can use the mnemonic VUX/HOY to determine the slope, the type of line, and which axis it corresponds to. VUX/HOY stands for:

Vertical line

Undefined slope

X axis

Horizontal line

0 is the slope

Y axis

according to this, the equation x = 6 is a vertical line

now we can start eliminating answer choices

A. a line containing the point (6,2)

the point lies on the line x = 6, as the x-coordinate in the ordered pair is 6. this  is not parallel to the line

B. y = 6

this intersects x = 6 and is not parallel

C. y = 4

this intersects x = 6 as well and is not parallel

D. x = 3

this leaves us with x = 3, which is a vertical line as seen by the equation and therefore x = 3 is our answer

Step-by-step explanation:

A motorboat travels 448 kilometers in 8 hours going upstream and 440 kilometers in 5 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?

Answers

9514 1404 393

Answer:

boat: 72 km/hcurrent: 16 km/h

Step-by-step explanation:

The speed difference between boat and current is the upstream rate:

  (448 km)/(8 h) = 56 km/h

The sum of speeds of boat and current is the downstream rate:

  (440 km)/(5 h) = 88 km/h

The rate of the boat is half the sum of these:

  (56 +88)/2 = 72 . . . km/h

The rate of the current is half their difference:

  (88 -56)/2 = 16 . . . km/h

The rate of the boat is 72 km/h; the rate of the current is 16 km/h.

Round 17.20947 to the nearest
hundredth.

Answers

17.21

the 9 behind the 0 helps it go up to 1 !!

PLEASE HELP FAST ssss

Answers

Answer:

plane EBG

Step-by-step explanation:

plane C is also named plane EBG

[tex]\\ \sf\longmapsto Plane\:EBG[/tex]

We can't name it EBF as it is a axis and coplanar points Also nEF is not a satisfactory name .So the correct option is C

Can someone provide the steps on solving this?

Answers

9514 1404 393

Answer:

  857.4 ohms

Step-by-step explanation:

The new frequency is 50.2/61.4 times the old frequency. Since the reactance varies inversely with frequency, the new reactance will be 61.4/50.2 times the old reactance:

  reactance at lower frequency = (701 ohms)×61.4/50.2 ≈ 857.4 ohms

find the greatest common factor of 20 and 40​

Answers

Answer:

20,10,5,4,2,1

Step-by-step explanation:

Determine the value of x

Answers

x = a√2

a = 8

x = 8√2 ← the end answer

What is the solution to the equation 3(y-2)=2y-8 A.-2/5 B.-14 C. -2 D. -2 4/5 I NEED-HELP PLeAse

Answers

3(y - 2) = 2y - 8

3y - 6 = 2y - 8

3y - 2y = -8 + 6

y = -2

Answer: C

If you have $19 and spend $7, what fraction of money did you spend?

Answers

Answer:

I spent 7/19 of the money.

7/19 money was spent

The circumference of a circle is 6inches. What is the area of the circle

Answers

I got 2.864 hope this helps

How much time has passed? 8:45 to 12:30

Answers

8:45 → 9:00 (15 minutes)

9:00 → 12:00 (3 hours)

12:00 → 12:30 (30 minutes)

3 hours + 15 minutes + 30 minutes =

= 3 hours 45 minutes

Answer: 5:55 thats the anwers

Step-by-step explanation:

what is 550÷1000000??
This is a long division problem.​

Answers

Answer:

[tex]5.5*10^{-4}=\frac{11}{20000}=.00055[/tex]

Step-by-step explanation:

[tex]550/1000000=55/100000[/tex]          | Take one 0 from each side of the divider

Now that it's simplified, we can more easily solve the problem:

[tex]55/100000=5.5*10^{-4}[/tex]

We can also write this as a fraction or a decimal:

[tex]5.5*10^{-4}=\frac{11}{20000}=.00055[/tex]

The equation 2(5 + 7) = (2•5) + (2•7) illustrates what
property?

A) associative property
B) commutative property
C) distributive property
D) identity property

Answers

Answer:

It's C) distributive property

Step-by-step explanation:

You are distributing 2 to 5 and 7

The answer is C). ::))))

100 points

Given the following functions:

f(x)=x2

g(x)=x−3

Find the composition of the two functions and show your process:

g(f(x))

Answers

f(x)=x^2
g(x)=x-3
We want g(f(x))
So , we put f(x) into g(x)
The answer is
g(f(x)) = x^2 - 3

What is the volume?
10 ft
8 ft


Answers

Answer:

8×10=18 ft is answer I think

Dominic pays 7% interest on his $16,000 college loan and 12% interest on his $15,000 car loan. What average interest rate does he pay on the total $31,000 he owes? (Round your answer to the nearest tenth of a percent.)​

Answers

16,000 x .07 = 1,120
15,000 x .12 = 1,800
1,120 + 1,800 = 2,920
31,000/2920 = 10.616
11% interest

Order from least to greatest
√6, -5.25 , 3/2 , 5

Answers

-5.25, 3/2, (square root)6, 5

Answer: 5.25, 3/2, the square root of 6, 5

Step-by-step explanation:

Can anyone help me ? Thanks

Answers

Answer:

Third side is 10

6²+8²=h²

100=h²

h=10

If the points on a scatterplot are clustered in a pattern that extends from the upper left to the lower right, this would suggest that the two variables depicted are: ________

a. normally distributed.
b. positively correlated.
c. regressing toward the average.
d. negatively correlated.

Answers

Answer:

B

Explanation:

im doing this for points :D

Trey wrote a few steps to describe how carbon circulates between the atmosphere and living organisms. Step 1. Carbon enters the atmosphere as carbon dioxide from respiration and the burning of fossil fuels. Step 2. Plants absorb carbon dioxide in the air and use it to make their own food using photosynthesis. Step 3. Plant-eating animals consume the carbon stored in plants. If step 2 is removed, which statement best describes the effects of this missing step on the carbon cycle?

Answers

Answer:

Dead animals are buried and form fossil fuels, which produce carbon dioxide when burned.

When animals and plants are fossilized and buried under sediments, the higher pressure and temperatures turns them to oil, over time, that is mined and combusted for energy by humans. This plays a significant  role in the carbon cycle.

The best statement describing the effects of missing step 2 in Trey's description of the circulation of carbon between the atmosphere and living organisms is: there will be too much carbon dioxide in the atmosphere.

Carbon dioxide in the atmosphere is mostly used by plants to create their food through the well-known process of photosynthesis.

Without step 2, carbon dioxide will not be absorbed by plants through photosynthesis.  Therefore, the amount of carbon dioxide present in the air will be too much for other living things and animals.  The side effects include:

increase in global warming unsavory increase in ozone depletion worsening global environmental disasterslack of fossil fuel.

Thus, step 2 is an indispensable, necessary, important, and life-saving process in the carbon cycle.

Read more about the carbon cycle at https://brainly.com/question/14337456

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