If amount of utility bill is normally distributed with a mean of $105 and a standard deviation of $20. What percentage of your bills would you expect to be between $85 and $125?
Answer:
68% of your bills between $85 and $125
Step-by-step explanation:
The Empirical 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.
In this problem, we have that:
Mean = $105
Standard deviation = $20
What percentage of your bills would you expect to be between $85 and $125?
85 = 105 - 20
125 = 105 + 20
Within one standard deviation of the mean, so by the Empirical Rule, 68% of your bills between $85 and $125
Please need help with one
the answer of m angle q is 77
Find the value of b. Round your answer to the nearest tenth.
Answer:
You need to include a picture because there is no figure. I don't know the other numbers of the angles orsides.
Step-by-step explanation:
What is the 30% of 150
Answer:
555#*6
Step-by-step explanation:
eat 10 pickels go to her party then eat 10 real pickels how many pickles did i have tn
Simplify the expression 8(2x - 6y + 3) using the distributive property. *
Answer:
16x - 48y +24
Step-by-step explanation:
We can use the distributive property to expand:
8(2x - 6y + 3)8 x 2x - 8 x 6y + 8 x 316x - 48y + 24Hope this helps!!
Answer:
(16x48y+3)
Step-by-step explanation:
tell me if u am wrong
and your final answer is -29
What is 26% of 480?
Please
Answer:
124.8 is 26% of 480.
Step-by-step explanation:
required percentage is :
26/100 × 48013 / 50 × 48013 / 5 × 48 124.8i hope it helped...
PLEASE I NEED HELP FAST!!! Solve for x. 8=2x+4.
Which of these triangles are definitely not congruent to any of the others?
Check all that apply. I think it’s c and d but I’m not sure!
Answer:
Your correct, it's C and D
Step-by-step explanation:
A and E are right triangles, so that's not the answer. B and F are isosceles triangles so that's not the answer. C and D are 2 DIFFERENT obtuse triangles so that's why C and D are the answers.
Lewis is hiking in a state park when he spots a brightly colored bird in a distant tree. Lewis is 60 feet away from the tree, and the bird is perched on a branch 22 feet above the ground. Lewis is 5 feet tall.
What is the angle of elevation, in degrees, of Lewis' line of sight to the bird?
Answer:
he is 77 feet away from mr. birdie
Step-by-step explanation:
Quite certain it'd be 15.8 degrees.
Think about it, we're trying to figure out his angle of sight. If his eyes are 5 feet above ground, and the bird is 22 feet off the ground, there's really only a 17 ft height difference between the two. After doing the formulas and all, we can see that the angle of his vision is approximately 15.8.
Need help will give brainliest
Answer:
thats answer is b
Step-by-step explanation:
7 plus 6 plus 11 is 24
8 plus 8 plus 10 is 26
so yes.
for every 5 coins Carmen gets, she gives her brother Frankis 2 coins. If Carmen gets 9 coins, how many do her brother have?
Answer:
6 coins
Step-by-step explanation:
For every 5 coins Carmen recieves, she gives off 2 to her brother, leaving her with 3 coins, 3x3=9, 2x3=6
Given the triangle below, what is m
if the cost of a tv starts at 1 million in 1995 then jumps to 1.3 million in 1998. how much would the estimated cost be in 2021?
Answer:
3.6million
Step-by-step explanation:
See image for explanation (gotten from Chegg tutor)
Answer:
3.6 million
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/ (o) (o) \
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8(4-x) = 7x+ 2 what is x equal too
Answer:
32-8x=7x+2
32-2=7x+8x
30=15x
30/15=x
2=x
Step-by-step explanation:
Explain how you change a decimal to a fraction.
Answer:
Decimals can be written in fraction form. To convert a decimal to a fraction, place the decimal number over its place value. For example, in 0.6, the six is in the tenths place, so we place 6 over 10 to create the equivalent fraction, 6/10. If needed, simplify the fraction.
Answer:
Decimals can be written in Fractions form. To convert a decimal to a fraction, place the decimal number over its place value . For example, in 0.6 the six is in the tenths place so we place 6 over 10 to create the equivalent fraction 6/10 if needed simplify the fraction
decide if each expression is equivalent to 2^6 or 4^4
Answer:
it's just asking if the expressions ( whatever those are) are equal to 2^6 (64) or 4^4 (256). I hoped this helped
What is 82×68 this is very hard
Answer:
5576
Step-by-step explanation:
Hope you have a good day, Loves!
Also if I'm right can you let me know please?
Also Also if I am right can I have Brainliest??
1 Which size Yogli Mogli which yogurt size gives you the best price per ounce?
Small 5 oz. cup for $2.50
Medium 10 oz cup for $3.49
Large 15 oz. cup for $5.99
Super Size 24 oz. cup for $6.59
a. Small
b. Medium
c. Large
d. Super Size
Plz respond quickly for the best answer
Liam opened a savings account with a $400 deposit and a simple interest rate of 7.5%. If the balance of the account is now $670 and there are no deposits or withdraws, how long ago did he open the account?
Answer:
If he deposited weekly, he would be depositing 9 dollars each week.
Step-by-step explanation:
Just thank me later and click the crown at the top of this answer if it helped ;)
WHAT IS 7352 divided by 45
Answer:
163.4
Step-by-step explanation:
Solve for x.
6
4
X
6
1
x = [?]
Enter the number, in decimal form,
that belongs in the green box.
9514 1404 393
Answer:
x = 3.6
Step-by-step explanation:
The angle bisector divides the segments proportionally. This means they satisfy ...
bottom segment / side segment = x/6 = (6-x)/4
Multiplying by 12 gives ...
2x = 3(6 -x)
2x = 18 -3x . . . . . eliminate parentheses
5x = 18 . . . . . . . . add 3x
x = 3.6 . . . . . . . . . divide by 5
_____
Alternate solution
I like to try to work these mentally. The total of side lengths is 10, so the total base length (6) is 6/10 = 0.6 times that. Then x will be 0.6 times the left side length: 0.6·6 = 3.6 = x.
4
A system of equations is shown below.
5x + 2y = -15
2x - 2y = -6
What is the solution to the system of equations?
A
(-3,0)
B
(0, -3)
С
(-3,6)
D (6,-3)
Answer:
the answer for this question is
A(-3,0)
what is the square root of 36
Answer:
6 !
Step-by-step explanation:
since 6 x 6 = 36, the square root is 6 !
square root is when u multiply two same numbers for the output... so like 49 would b 7, since 7 x 7 = 49 !!
im not sure if that makes any sense, but i hope it helps !!
Solve for x.
Your Answer:
Question 3 options:
Answer
I need help ASAP!!! pls help and if it is right then I will give brainliest answer.
4. A surgical patient needs to have her liquid intake carefully monitored. How many mL of fluid did she consume if she
drankL of water, a pint of milk, and 8 oz of juice?
Explain your answer !
( WILL GIVE BRAINLST)
Answer:
C) 1/3, 2, √7
Step-by-step explanation:
√7= 2.6
1/3= 0.3
2=2
1/3, 2, √7
C.
*if using a calculator*
1/3= .333
square root 7 equals about 2.646
therefore, we know .333 (1/3) is the smallest out of the numbers and 2.646 (sqr root 7) is the biggest.
*if you cannot use a calculator*
We know 1/3 is less than 1 because 3/3 would equal 1 and we only have 1/3.
We don’t know the square root of 7, however we know that it has to be between 2 and 3 because the square root of 4 is 2 and the square root of 9 is 3. 7 is between those two numbers, so therefore we know that the square root would have to be between 2 and 3.
Knowing that, we could figure out that since 1/3 is less than 1 it would be the smallest. Since the sqr root of 7 is between 2 and 3, it would be bigger than 2 and the biggest out of the 3.
Conclusion:
The order is 1/3, 2, sqr root 7
Select all the equations that describe each situation and then find the solution.
Kiran’s backpack weighs 3 pounds less than Clare’s backpack. Clare’s backpack weighs 14 pounds. How much does Kiran’s backpack weigh?
Answer:
Its 11
Step-by-step explanation:
Mei is trying to list as many prime numbers as she can for a challenge problem for her math class. She finds
that the polynomial expression n^2 - n +41 can be used to generate some, but not all. prime numbers. What is the
degree of Mei's polynomial?
can someone help me plz?!