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
olganol [36]
3 years ago
5

Please answer question need answer asap

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

So for graphs, to tell if its a function is to see how many points are on the x-line for the coordinate. Functions will only have one point on each x-line.


With the top left, x = 0 has 2 points on it, so that is incorrect.

With top right, x = -1 has 2 points on it, so its incorrect as well.

Bottom left has 3 points on x = 0, so that's incorrect.

Bottom right, however, has no x-line where there are two or more points on it, so it is a function.

You might be interested in
Please help and show work
Eva8 [605]

Answer:

1) x(x+7)

3) (x+5)*(x+4)

4) (x-6)*(x-8)

5) x(2x+21)+11

6) 5(a-5)*(a+5)

7) (4x+3)*(2x-3)

8) 4( x²-6xy+8)

Step-by-step explanation:

4 0
3 years ago
A random sample of eighty-five students in Chicago city high schools takes a course designed to improve SAT scores. Based on the
erica [24]

Answer:

(B) The correct interpretation of this interval is that 90% of the students in the population should have their scores improve by between 72.3 and 91.4 points.

Step-by-step explanation:

Confidence interval is the range the true values fall in under a given <em>confidence level</em>.

Confidence level states the probability that a random chosen sample performs the surveyed characteristic in the range of confidence interval. Thus,

90% confidence interval means that there is 90% probability that the statistic (in this case SAT score improvement) of a member of the population falls in the confidence interval.

7 0
3 years ago
The running shoes Gina bought at a 20%-off sale were originally priced at $70. Before tax was added, how much money did Gina sav
il63 [147K]

gina saved $14

convert your percentage into a decimal: 20% converts to 0.20

then, just multiply 0.20 with 70. you should get 14.

8 0
3 years ago
Which is bigger 8 or -3
NikAS [45]

8 is the greatest

Note the sign, and look at it on a number line.

8 is bigger than -3 by 11

hope this helps

4 0
3 years ago
Read 2 more answers
If f(x)=3x+5 and q(x)=0, show that f(x)+q(x)=f(x).
alex41 [277]

Step-by-step explanation:

  • f(x)=3x+5
  • q(x)=0

f(x)+q(x)

➜3x+5+0

➜3x+5

➜f(x)

<h3>Hence proved</h3>
8 0
3 years ago
Other questions:
  • Express (picture) in a radical form.<br> please show how you go to the answer, thanks!
    14·1 answer
  • 28 1/2 divided by 1/2
    7·2 answers
  • The Clayton Valley Charter High Football team recently accepted 20 athletes. The 20 athletes are invited to a "meet and greet" i
    14·1 answer
  • What is the area of a parallelogram with a base of 12 ft and a height of 2 out of 3 ft?
    10·2 answers
  • Factor this polynomial. -3x^2-5x-2
    6·1 answer
  • See the picture below!!!
    12·1 answer
  • from a survey taken several years ago, the starting salaries of individuals with an undergraduate degree from business schools a
    9·1 answer
  • How does the graph of g (x) = StartFraction 1 Over x minus 5 EndFraction + 2 compare to the graph of the parent function f (x) =
    10·1 answer
  • PLZ HURRY will give BRAIN-LY-EST and 20 points if correct
    11·2 answers
  • Mike is catering a party. He plans on having 4 trays of 5 appetizers each on the buffet at the beginning of the party and will r
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!