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
iogann1982 [59]
2 years ago
15

What is 1+2? I need to know!!

Mathematics
2 answers:
nydimaria [60]2 years ago
7 0
The answer is 3 :))))))
Virty [35]2 years ago
4 0

Answer: It equals 12 Just kidding it equals 3

You might be interested in
4x−19=−3x−12<br> What is the value of x?
marin [14]

Answer:

X = 1

Step-by-step explanation:

1) Move the 3x to the left hand side and change its sign:

4x-19+3x=-12

2) Move 19 to the right hand side and change its sign:

4x+3x=-12+19

3) collect the like terms:

4x+3x= 7x

-12+19= 7

4) Divide both sides by 7

X = 1

8 0
2 years ago
Read 2 more answers
in one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean
VARVARA [1.3K]

Answer:

a=1050 -0.126*218=1022.53

So the value of height that separates the bottom 45% of data from the top 55% is 1022.53.  

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 energy consumption of a population, and for this case we know the distribution for X is given by:

X \sim N(1050,218)  

Where \mu=1050 and \sigma=218

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.55   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.45 of the area on the left and 0.55 of the area on the right it's z=-0.126. On this case P(Z<-0.126)=0.45 and P(z>-0.126)=0.55

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=-0.126

And if we solve for a we got

a=1050 -0.126*218=1022.53

So the value of height that separates the bottom 45% of data from the top 55% is 1022.53.  

8 0
3 years ago
Can someone PLEASE help me with this question, I've been having trouble for half a hour. Thank you!
ioda
The answer is D  6,804 square inches
the surface area of one net is 1,056
you multiply it by the number of packages and you get 6,804

5 0
3 years ago
Read 2 more answers
Use skip counting and the number line to find the missing number.<br> 3X__=12
loris [4]

Answer:


Step-by-step explanation:

3 times 4 is 12. you can solve this by dividing 12 by 3, or by skip counting and using repeated addition.

7 0
3 years ago
Write in point-slope form an equation of the line passing through (-4, 10) and (-6, 15). Show your work.
Neporo4naja [7]
This is how it is done. Let me know if you have questions...

6 0
3 years ago
Other questions:
  • Suppose the spread of a direct contact disease in a school is modeled by the exponential function P(t) =
    14·1 answer
  • Find the unit rate. $68 for 8 1/2 hour
    7·1 answer
  • PLEASE HELP ME !! Carter has 3 statues of various sizes in his garden. Statue A is one foot taller than statue B. Statue is one-
    11·1 answer
  • Kurt’s ending balance on April 30 was $331.36. Add or subtract the items in his check register, shown below, to find his balance
    10·1 answer
  • Select all of the coefficients in the expression.
    14·1 answer
  • A total of 68 hikers went on a trip to Blue Hill Mountain. If 32 of the hikers were boys, how many hikers were girls?
    7·2 answers
  • Please help i will give brainliest... what letter goes with each line?
    13·1 answer
  • Can anyone solve this
    6·2 answers
  • How do you do basic algebra?
    15·1 answer
  • A 11-foot ladder iS placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!