All categories

3 years ago

Which graph is a parabola?

Mathematics

1 answer:

Alexandra [31]3 years ago

4 0

Parábola graph is when you’re finding the vertex and y-intercept

You might be interested in

The 6 participants in a 200-meter dash had the following finishing times (in seconds): 27, 28, 27, 25, 24, 31 Assuming that thes

ollegr [7]

Answer:

Standard deviation of the population is 2.4

Step-by-step explanation:

Finishing times of 6 participants in 200 meter dash has been given as 27, 28, 27, 25, 24, 31.

We have to calculate the standard deviation of the population formed by these timings.

Formula of standard deviation is

$\sigma=\sqrt{\frac{\sum(x-\mu)^{2}}{n} }$

where $\sigma$ = standard deviation

$\mu$ = mean of the data

n = number of scores in the sample

Mean of given data = $\frac{27+28+27+25+24+31}{6}=27$

$\sum(x-\mu)^{2}=(27-27)^{2}+(28-27)^{2}+(27-27)^{2}+(25-28)^{2}+(24-27)^{2}+(31-27)^{2}$

= $0+1+0+4+9+16$

= 30

Now $\frac{\sum(x-\mu)^{2}}{n}=\frac{30}{6}=5$

$\sigma=\sqrt{5}$ = 2.236 ≈ 2.24

Therefore, standard deviation of the given data is 2.24

5 0

3 years ago

Which solid figure has six vertices?

koban [17]

A triangular prism has six vertices.

8 0

3 years ago

a couch ,a love seat,and a chair cost $1565.the couch costs twice as much as the chair,and the love seat costs $ 400 more than t

Art [367]

I'm guessing you are having a problem with translating the problem into an equation you can solve. To help this what you can first do is underline the important parts of this problem. twice as much, 400 more,
Lets look at this
First Let the chair=x
Next we know the couch cost twice as much as the chair
So now we know we should let the couch=2x
Lastly the love seat is 400 more than the couch. couch+400is the same thing as saying 2x+400
NOw 1565=chair(x)+couch(2x)+love seat(2x+400)
So that means 1565=x+2x+2x+400
Combine like terms and you now have 1565=5x+400
Now you isolate the variable by subtracting 400 from both sides which is 1165=5x Then you divide both sides by 5 and get 223=x

5 0

3 years ago

If a van traveled 150 miles in 3 hours, how many miles could the van travel in 6 hours?

telo118 [61]

Answer:

300 because if he traveled 150 in 3 to find six just multiply by 2

8 0

3 years ago

Read 2 more answers

- 3(4 - 9)<br><br> Evaluate.

snow_lady [41]

Answer: