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
Katena32 [7]
2 years ago
8

I need help on this question don't understand this at all

Mathematics
1 answer:
Debora [2.8K]2 years ago
4 0

Answer:

F (3)=-1

Step-by-step explanation:

The domain consists of the pre-images and the range has the images. We have the f (3)=-1 since -1 is the image of 3. When we are looking for the function of a number and we are given a diagram of such, we just need to take the value of the number it is pointing to.

You might be interested in
How many seconds until the ball touches the ground
neonofarm [45]

Answer: 6.06 seconds

Step-by-step explanation:

This will not factor. The ball will hit the ground 6.06 seconds after thrown.

7 0
3 years ago
Hunter wants to prove to his parents that playing computer games while he studies for tests will help him get better grades. He
mars1129 [50]

His mistake was that he did not use a random sample. His tried to show that playing games would give him higher grades which his study does not decisively conclude because the people around him that play games are likely to be in the same academic caste as him, which skews his data. Choice B would be the best because he's not testing any variables, rather just collecting the unadultered data of the group.

7 0
3 years ago
.8x-.3y=5<br> 1.4x-.9y=11
PolarNik [594]

Answer:

(x,y)=(-22/49,-5566/147)

Step-by-step explanation:

6 0
3 years ago
Does anyone know how to solve this math equation?
garik1379 [7]

Answer:

x = 8; y = -6

Step-by-step explanation:

We have a system of equations.

\dfrac{3(x - 2)}{2} - \dfrac{y - 2}{4} = 11

\dfrac{2(x + 2)}{5} - \dfrac{y}{3} = 6

First, let's multiply both sides of each equation by the LCM of both denominators of that equation to eliminate all denominators.

First equation:

8 \times \dfrac{3(x - 2)}{2} - 8 \times \dfrac{y - 2}{4} = 8 \times 11

12(x - 2) - 2(y - 2) = 88

12x - 24 - 2y + 4 = 88

12x - 2y = 108

6x - y = 54

The equation above is the simplified first equation.

Second equation:

\dfrac{2(x + 2)}{5} - \dfrac{y}{3} = 6

15 \times \dfrac{2(x + 2)}{5} - 15 \times \dfrac{y}{3} = 15 \times 6

6(x + 2) - 5y = 90

6x + 12 - 5y = 90

6x - 5y = 78

The equation above is the simplified second equation.

The simplified system of equations is:

6x - y = 54

6x - 5y = 78

The x term of both equations is 6x. If we multiply both sides of the second equation by -1 to get a first term of -6x, then when it is added to 6x, the x terms are eliminated.

Now we rewrite the first simplified equation as it is. Below it, we write the second equation multiplied by -1 on both sides. Then we add the equations.

6x - y = 54

-6x + 5y = -78

Add the equations to get:

4y = -24

y = -6

Now we substitute -6 for y in the first simplified equation and solve for x.

6x - y = 54

6x - (-6) = 54

6x + 6 = 54

6x = 48

x = 8

Solution: x = 8; y = -6

6 0
3 years ago
What single decimal multiplier would you use to increase by 7% followed by a 4% decrease?
Nostrana [21]

Answer: To increase an amount by 7%, you would want to use 1.07 as the multiplier. To decrease it, you would use 0.93

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • I need help on 15 a,b,c
    10·2 answers
  • 5th grade balance the checkbook
    5·2 answers
  • PLZ HELP ASAP GEOMETRY
    5·2 answers
  • A wheel has a diameter of 20 feet. What is the minimum number of complete revolutions that the wheel must make to roll at least
    14·2 answers
  • PLZZZZ HELP WILL MARK BRAINLIEST!
    5·1 answer
  • Sue made a batch of snack mix for the party. She combined 12 ounces of mixed nuts, 20 ounces of cereal, and 8 ounces of pretzels
    9·1 answer
  • Rashawn kept a record of how many hours he spent listening to music for 6 days during school vacation and displayed his results
    11·2 answers
  • Show work / explain it​
    15·1 answer
  • ^ means to the power, / indicationg fraction.
    13·1 answer
  • Which of the following equations has the same solution as m-(-62) = 45?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!