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
swat32
3 years ago
13

If the ordered pairs(a,3)and (2,b) belong to the set {(x,y):y=2x-3},find the value of a,b​

Mathematics
1 answer:
denis23 [38]3 years ago
3 0

Answer:

a=3

b=1

Step-by-step explanation:

3=2a-3 => a=3

b=2*2-3 = 1

You might be interested in
What happens to the slope when a line with positive slope gets close to vertical
Nuetrik [128]
The value of the slope increases and becomes closer to infinity
4 0
3 years ago
Express 0.38 as a fraction
torisob [31]
The decimal 0.38 is represented as the fraction 19 over 50
5 0
3 years ago
Read 2 more answers
The heights of baby giraffe are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If 100 b
ANEK [815]

Answer:

P(\bar X

And we can solve this using the following z score formula:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And if we use this formula we got:

z = \frac{63-63.6}{\frac{2.5}{\sqrt{100}}}= -2.4

So we can find this probability equivalently like this:

P( Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(63.6,2.5)  

Where \mu=63.6 and \sigma=2.5

We select n =100. Since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

We want this probability:

P(\bar X

And we can solve this using the following z score formula:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And if we use this formula we got:

z = \frac{63-63.6}{\frac{2.5}{\sqrt{100}}}= -2.4

So we can find this probability equivalently like this:

P( Z

4 0
3 years ago
Every delivery order from a pizzeria has a delivery charge of $1.50. How many dollars b is the total bill for a delivery of one
Charra [1.4K]

Answer:

p+1.50=b

Step-by-step explanation:

Hope it helps (;

7 0
3 years ago
Surface area,<br>pls help ​
erastovalidia [21]
192
Solution
(2ft)x(12ft)x(8ft)
Answer
192
Sana po makatulong
5 0
2 years ago
Other questions:
  • Julie spends$5.62 at the store. michael apends 5 times as much as julie. jeremy spends $6.72 more than michal. how much does eac
    9·2 answers
  • Aleka and Helene both opened savings accounts that earn 2.5% interest a year. Aleka puts $2,500 into her account. Helene put $1,
    7·1 answer
  • Given a circle with radius of 6 which is the length of an arc measuring 30
    6·1 answer
  • Verify the identity:<br> tan(x+pi/2)=-cotx<br><br> please!!
    7·1 answer
  • Alright well here goes another one
    12·2 answers
  • Can somebody explain this to me
    15·1 answer
  • 6 – 2x = 24<br> -6<br> - 6<br> 2x = 18<br> 2 2<br> x = 9<br> Is this statement true or false?
    13·1 answer
  • PLS HELP ME!!! 10 points for the answer and an explanation.
    8·1 answer
  • Which of the following is the expanded form of a number? Select all correct answers.
    12·1 answer
  • Luis was hired to make some jewelry for a special occasion. He needs to make the jewelry out of an alloy that is 54%silver and h
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!