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
ICE Princess25 [194]
3 years ago
12

Whats the vertex of the graph y=-x^2

Mathematics
1 answer:
yawa3891 [41]3 years ago
6 0
(0,0) you could use x=-b/2a but since your b term is nonexistant the whole term goes to 0 for the x value. Plug x=0 into the original equation which gives you another 0. ezpz
You might be interested in
on a lake, Carol rowed a boat for 1/8 mile. Then luke rowed the boat for 3/8 mile. how far did carol and like row in all? simpli
Semmy [17]

Answer:

Total = \frac{1}{2}

Step-by-step explanation:

Given

Carol = \frac{1}{8}

Luke = \frac{3}{8}

Required

How far did they row together

To do this, we simply add the distance they both covered.

Total = Carol + Luke

This gives;

Total = \frac{1}{8} + \frac{3}{8}

Take LCM

Total = \frac{1+3}{8}

Total = \frac{4}{8}

Simplify

Total = \frac{1}{2}

<em>Hence, they both rowed 1/2 mile</em>

7 0
3 years ago
Select all that apply.
ioda

Answer:

multiply 6:8 by 2

12:16

6 0
3 years ago
Find the quotient.<br> -245 - 35<br> a. -7<br> b. - 5<br> C. 5<br> d 7
DanielleElmas [232]

a. -7 is your answer dear.

Step-by-step explanation:

Ur complete Question is like -245/35 = -7

3 0
3 years ago
Read 2 more answers
Karen stacks a set of cans as shown. The top can has a diameter of 2 inches, the middle can has a diameter of 5 inches, and the
german

Answer:

Unknown

Step-by-step explanation:

What is the question? You have the information listed but you forgot to ask the question.

4 0
2 years ago
Assume that the empirical rule is a good model for the time it takes for all passengers to board an airplane. The mean time is 4
slamgirl [31]

Answer:

The interval that describes how long it takes for passengers to board the middle 95% of the time is between 40.16 minutes and 55.84 minutes.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 48, \sigma = 4.

Which interval describes how long it takes for passengers to board the middle 95% of the time?

This is between the 2.5th percentile and the 97.5th percentile.

So this interval is the value of X when Z has a a pvalue of 0.025 and the value of X when Z has a pvalue of 0.975

Lower Limit

Z has a pvalue of 0.025 when Z = -1.96. So

Z = \frac{X - \mu}{\sigma}

-1.96 = \frac{X - 48}{4}

X - 48 = -1.96*4

X = 40.16

Upper Limit

Z has a pvalue of 0.975 when Z = 1.96. So

Z = \frac{X - \mu}{\sigma}

1.96 = \frac{X - 48}{4}

X - 48 = 1.96*4

X = 55.84

The interval that describes how long it takes for passengers to board the middle 95% of the time is between 40.16 minutes and 55.84 minutes.

7 0
3 years ago
Other questions:
  • By the end of the round 3 of the handshaking activity in the Epidemiology Lab, eight people are infected (of the twenty four peo
    14·1 answer
  • Select all statements that are true about the linear equation. y=−2x+4
    12·1 answer
  • . Evaluate.<br>14.15 ÷ 5
    5·2 answers
  • The Molina family went to a concert together. They purchased 4 concert tickets for $25 each, 3 t-shirts for $15 each, and a post
    5·1 answer
  • The following observations are on stopping distance (ft) of a particular truck at 20 mph under specified experimental conditions
    9·1 answer
  • Multiple Choice Problems 10 - 14.
    15·1 answer
  • Complete the table:
    13·1 answer
  • PLZS HELP THIS IS MY LAST QUESTION!!
    5·2 answers
  • What is the slope of the line?
    8·1 answer
  • You work 6 days with 26.00 a day. How much money do you make in those 6 days
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!