1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ratling [72]
2 years ago
10

Which function has a domain of all real numbers?

Mathematics
1 answer:
lubasha [3.4K]2 years ago
5 0
The answer of this question is gonna be A
You might be interested in
A car and a motorcycle leave the city at the same time and drive to a lake that is 120 km away. The speed of the motorcycle is 2
iris [78.8K]

Answer:

  • 40 km/h and 60 km/h

Step-by-step explanation:

Let the speed of the car is x, then the speed of motorcycle is x + 20

The distance = 120 km

<u>Time:</u>

  • 120/x = 120/(x + 20) + 1
  • 120(x + 20) = 120x + x(x +20)
  • 120x + 2400 = 120x + x² + 20x
  • x² + 20x = 2400
  • x² + 2*10x + 10² = 2500
  • (x + 10)² = 50²
  • x  + 10 = 50
  • x = 40

Speed of the car is 40 km/h

Speed of the motorcycle is 60 km/h

3 0
3 years ago
Read 2 more answers
HELP ME ASAP HELP ME ASAP HELP ME ASAP
Anon25 [30]

Answer:

First, plot the y-intercept. The y-intercept is 1, so plot the point (0,1).

Then go up 2 points and to the right 3 points and plot a point there. (3,3)

We go to the right because the slope is positive.

Draw a line through the two points.

Step-by-step explanation:

y = mx+b

m = slope

b = y-intercept

8 0
3 years ago
Need help ASAP!!!!!!
trapecia [35]

Answer:

see explanation

Step-by-step explanation:

x² + 3x + 7 = 5 ( subtract 5 from both sides )

x² + 3x + 2 = 0 ← in standard form

(x + 2)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x ( zero product rule )

x + 2 = 0 → x = - 2

x + 1 = 0 ⇒ x = - 1

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

x² - 2 = - 2x² + 5x ( subtract - 2x² + 5x from both sides )

3x² - 5x - 2 = 0 ← in standard form

(3x + 1)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = - \frac{1}{3}

x - 2 = 0 ⇒ x = 2

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

(x + 3)² + 4x = 0 ← expand left side using FOIL and simplify

x² + 6x + 9 + 4x = 0

x² + 10x + 9 = 0 ← in standard form

(x + 9)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x + 1 = 0 ⇒ x = - 1

4 0
3 years ago
Which function is described by values in the table?
Sveta_85 [38]

One way to approach this problem is to go ahead and find the actual equation in slope-intercept form.


The slope of the line thru (3,6) and (5,4) is m = (6-4) / (3-5), or -2/2, or -1.

Subbing the known values of m, x and y, we get:

4 = -(5) + b. Then b = 9.

The correct equation (representing the data values in the table) is y = -x + 9.


7 0
3 years ago
Can a parent be 2 times as older as the kid
Serhud [2]
Well yeah it depends on the kids age and the parents age to
8 0
3 years ago
Other questions:
  • Someone help me please
    5·1 answer
  • Which of the following graphs show a proportional relationship?
    14·2 answers
  • One baseball team played 40 games throughout their entire season. If this baseball team won 14 of those games, then what percent
    12·1 answer
  • I need help on this question
    11·1 answer
  • What is a + 1/10 = 5/10 (need fast)
    11·2 answers
  • Pumpkin pies are normally sold for 82 cents. They are now on sale for 55 cents. If Riley buys one, then how much will Riley save
    9·2 answers
  • Fraction subtract 4/5-1/6​
    8·1 answer
  • Asphere with a radius of 7 m. What is the volume of the figure? Round your answers to the nearest tenth, if necessary.
    6·1 answer
  • Simplify 5^-2 x 5^5 x 5
    8·1 answer
  • Jace took a taxi from his house to the airport. The taxi company charged a pick-up fee of $4.40 plus $2.25 per mile. The total f
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!