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
vekshin1
2 years ago
9

Help please please please

Mathematics
1 answer:
madam [21]2 years ago
4 0

Answer: I think that the answer is 1,944 I think

Step-by-step explanation:  216 x 3 = 1,944

You might be interested in
Write an equation of each line in point-slope form. containing (2,1) and (3,4)
Leokris [45]

Answer:

y=3x-5

Step-by-step explanation:

This is the only line that will pass through these points.

7 0
2 years ago
Sponge Bob took 30 minutes to walk a mile last week.
sergey [27]
-20%
work:
(24-30):30*100=
(24:30-1)*100=
80-100=-20
6 0
3 years ago
Avoiding an accident while driving can depend on reaction time. Suppose that reaction time, measured from the time the driver fi
Nadya [2.5K]

Answer:

2.5% of drivers have a reaction time more than 2.14 seconds

16% of drivers have a reaction time less than 1.78 seconds

84% of drivers have a reaction time less than 2.02 seconds

Step-by-step explanation:

The Empirical Rule(68-95-99.7 rule) states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% are above.

In this problem, we have that:

Mean = 1.9s

Standard deviation = 0.12

What percentage of drivers have a reaction time more than 2.14 seconds?

2.14 = 1.9 + 2*0.12

So 2.14 is two standard deviations above the mean.

Of the 50% of the measures above the mean, 95% are within 2 standard deviations of the mean, so, below 2.14. The other 5% is above.

0.05*0.5 = 0.025

2.5% of drivers have a reaction time more than 2.14 seconds

What percentage of drivers have a reaction time less than 1.78 seconds?

1.78 = 1.9 - 0.12

So 1.78 is one standard deviation below the mean.

Of the 50% of the measures that are below the mean, 68% are within one standard deviation of the mean, that is, greater than 1.78.

100 - 68 = 32

0.32*50 = 0.16

16% of drivers have a reaction time less than 1.78 seconds

What percentage of drivers have a reaction time less than 2.02 seconds?

2.02 = 1.9 + 0.12

So 2.02 is one standard deviation above the mean.

Of the measures that are below the mean, all are below 2.02.

Of those that are above, 68% are below 2.02.

0.5 + 0.68*0.5 = 0.84

84% of drivers have a reaction time less than 2.02 seconds

5 0
3 years ago
How to write half of a number is equal to -5?
Oxana [17]
1/2x=-5 is the answer 
7 0
3 years ago
Read 2 more answers
He local zoo has 23 animals it can take on visits to schools and other community centers. How many ways can the zoo directors ch
dlinn [17]

Answer:

207

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Do 2 planes intersect at a point all the time?
    8·1 answer
  • A box contains 11 red chips and 4 blue chips. We perform the following two-step experiment: (1) First, a chip is selected at ran
    15·1 answer
  • What term is 1/1024 in the geometric sequence,-1,1/4,-1/6..?
    6·1 answer
  • I need help solving this
    6·1 answer
  • What is helpful Problem-solving
    12·1 answer
  • Since Jordyn and Teri have fewer rolls of kite string, they decide to tie their string together so their kite can fly higher. Wr
    7·1 answer
  • The football and soccer teams at Juan's middle school are selling movie tickets. He wants to determine the average
    9·1 answer
  • Please help am stuck on this
    13·2 answers
  • Help please asap and or ill eat your mom
    13·1 answer
  • Consider the linear equation y=4x-7 find the value of y that makes the given ordered pair a solution to the equation (3, y) Y=
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!