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
Studentka2010 [4]
3 years ago
9

Graph the function. f(x)=2x^2-5 please help ill give you brainliest

Mathematics
1 answer:
snow_lady [41]3 years ago
5 0

f(x)=2x^2+0x-5

Find the vertex

0/4=0=x

Input x into the equation to find y or f(x)

0+0-5=f(x)

(0,-5) = Vertex

Now find a random x coordinate to input into the equation.

Let's do 4.

32+0-5=f(x)=27

It may not look like a parabola due to it being uneven.

You might be interested in
Is b = 15 a solution to the equation 4b - 20 = 40?
irina [24]

Answer:

yes

Step-by-step explanation:

4 x 15 - 20 = 40

60 - 20 = 40

5 0
3 years ago
Read 2 more answers
A random sample of 40 binomial trials resulted in 14 successes. test the claim that the population proportion of successes does
mylen [45]

Using the z-distribution, since the p-value of the test is of 0.057 > 0.05, there is not enough evidence that the population proportion of successes does not equal 0.50.

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, we test if the proportion of successes equals 0.5, hence:

H_0: p = 0.5

At the alternative hypotheses, we test if it does not equal, hence:

H_1: p \neq 0.5

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

In which:

  • \overline{p} is the sample proportion.
  • p is the proportion tested at the null hypothesis.
  • n is the sample size.

For this problem, the parameters are given by:

n = 40, \overline{p} = \frac{14}{40} = 0.35, p = 0.5

Hence the test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

z = (0.35 - 0.5)/(0.5/sqrt(40))

z = -1.9.

<h3>What is the decision?</h3>

Using a z-distribution calculator, considering a two-tailed test, as we are testing if the proportion is different of a value, with z = -1.9, we get that the p-value of the test is of 0.057.

Since the p-value of the test is of 0.057 > 0.05, there is not enough evidence that the population proportion of successes does not equal 0.50.

More can be learned about the z-distribution at brainly.com/question/16313918

#SPJ4

5 0
1 year ago
Please answer for brainlesit
Brums [2.3K]

Answer:

(-3, -2) that is the answer please give me brainiest

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do we write equations in slop intercept form and how do we do this entire page?
Alla [95]
So,...
the slope intercept form is y = mx+b
  the m is the slope, and the b is the coordinate that intercepts the y-axis

so to start you off, 4x - 9y = 2

4x - 9y = 2
-4x            - 4y

-9y = -4y +2

divide both sides by -9

<u>-9y </u>= <u>-4y + 2</u>
 -9          -9

y = 4/9 x - 2/9

6 0
3 years ago
Pls help me for brainliest answer answer needs to be correct
ira [324]

Answer:

a) 17, 29, 41, 53, 65....

b) 12n + 5

3 0
3 years ago
Other questions:
  • PLZ help me i cant figure out these 2 questions!!!!!!!!
    15·2 answers
  • 7. The box plots show the average gas mileage of
    5·2 answers
  • Jackson's mom limits the amount of time he is allowed to play video games after Jackson plays for 9 minutes his mom tells him th
    8·1 answer
  • O is the center of the given circle. The measure of angle O is 128°. The diagram is not drawn to scale.
    10·2 answers
  • The answer to the question to my test
    9·1 answer
  • PLEASE HELP
    5·1 answer
  • Write the following equation in standard form. Then solve. 4q^2+2q=3q^2-4q+16
    6·1 answer
  • A bacterial culture starts with 800 bacteria and grows at a rate proportional to its size. After 6 hours there will be 4800 bact
    6·1 answer
  • How do you do Inequalities o-o help meh pleaseeeeeeeeeee
    5·1 answer
  • What is 12 to the exponent 263845
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!