Answer:
square roots ?
Step-by-step explanation:
Penny Weights, use the weights of the post 1983 pennies to construct a 98% confidence interval estimate of the standard deviation of the weights of all post-1983 pennies. S=0.0165 n=37. Find confidence interval. a. 0.01231 < Ï < 0.2111 b. 0.01239 < Ï < 0.02111 c. 0.1391 < Ï < 0.2311 d. 0.001219 < Ï < 0.002111
Answer:
c. 0.1391 < Ï < 0.2311
Step-by-step explanation:
The formula for Confidence Interval is given as:
Mean ± z × Standard deviation/√n
Z score for 98% confidence interval = 2.326
Mean = Significance level = 100% - 98%
= 2% = 0.02
Standard deviation = S=0.0165
n= 37
Hence,
Confidence Interval =
0.02 ± 2.326 × 0.0165/√37
0.02 ± 0.0063094687
Confidence Interval
0.02 - 0.0063094687
= 0.1391
0.02 ± 0.0063094687
= 0.2311
Hence, the Confidence Interval = (0.1391, 0.2311)
= c. 0.1391 < Ï < 0.2311
What is the quotient оf (x - 3x + 3x2 - 3) - (x-1)? О - 2х - 3 x + 2x +7 - 3x 48 5 - 2x +3
Last week, a store sold laptops worth a total of $3, 885. Each laptop cost $555. How many laptops did the store sell last week?
Answer:
Should be 7
Step-by-step explanation:
Answer:
7 laptops
Step-by-step explanation:
3, 885 divided by 555= 7
Help plz:))) I’ll mark u brainliest ASAP 10 points(:(:
Answer:
G > F > H
Step-by-step explanation:
In a triangle, the largest side and largest angle are opposite eachother. Similarly, the smallest side and smallest angle are opposite eachother.
We have 3 sides of length 6 cm, 11 cm, and 12 cm. The angle opposite the 6 cm side is the smallest (H). The angle opposite the 14 cm side is the largest (G).
Slope intercept form of equation
Answer:
slope= 5/3 y-intercept=3
Step-by-step explanation: Equation= y=5/3x+3
Hope this helps
btw can i have brainliest?
A nail artist makes 33085 a year. If they get paid semimonthly, how much do they get each paycheck? Round to the nearest cent
Answer:
1378.54
Step-by-step explanation:
First multiply 12 by 4. You get 48 then divide it by 2 and You get 24. divide 33085 by 24 and you get 1378.54.
What is the effect on the graph of f(x)=1xf(x) = \frac{1}{x}f(x)=x
1 when it is transformed to g(x)=1x−7g(x) = \frac{1}{x} - 7g(x)=x
1−7?
A.
The graph of f(x) is shifted 7 units down.
B.
The graph of f(x) is shifted 7 units to the left.
C.
The graph of f(x) is shifted 7 units to the right.
D.
The graph of f(x) is shifted 7 units up.
Answer:
A
Step-by-step explanation:
Identify the ration numbers as a positive or negative.
Answer:
(From left to right) negative, negative, positive, positive, negative, positive, negative, positive
Zoe just lit a new candle and then let it burn all the way down to nothing. The length
of the candle remaining unburned, in inches, can be modeled by the equation
L = 9 – 0.5t, where t represents the number of hours since the candle was lit.
What is the y-intercept of the equation and what is its interpretation in the context of
the problem?
Answer:
9 which represents the the original length of the new candle
Step-by-step explanation:
Since there were 9 inches of candle remaining after 0 hours of burning, that means 9 represents the initial length of the candle, in inches.
What number makes a ratio equivalent to 7:15
Answer:
double those numbers:
14:30 is equivalent to 7:15
May I have brainliest please? :)
(4g^2 + 4g + 8) - (g + 3)
Answer:
4g²+3g+5
Basically factor the first equation and simplify.
Are these lines parallel, perpendicular, or neither? 3y=x+4 and 3x+y=1
Answer:
perpendicular
Step-by-step explanation:
3y = x + 4 in slope intercept form y = 1/3x +4/3
3x + y = 1 in slope intercept form y = -3x +1
the slopes are negative reciprocals of each other so they are perpendicular
Answer:
These lines are perpendicular
Step-by-step explanation:
3y=x+4
[tex]y = \frac{1}{3}x+\frac{4}{3}[/tex]
Slope (m1) = 1/3
3x+y=1
y = -3x + 1
Slope (m2) = - 3
m1 * m2 = [tex]\frac{1}{3}* -3[/tex]
= -1
So, these lines are perpendicular.
If product of two slopes is (-1), then they are perpendicular lines.
If both lines have same slope, then they are parallel.
Olivia typed 2 pages in 12 minutes. How long will it take her to type 10 pages at this rate?
Answer:
60
Step-by-step explanation:
If Olivia typed 2 pages in 12 minutes, this means that she can type 1 page in 6 minutes. Since we're looking for the amount of time it would take her to type 10 pages, we multiply 6 by 10 to get 60.
Answer:
60 minutes
Step-by-step explanation:
if Olivia writes 2 pages in 12 minutes that means she writes 1 page in 6 minutes. 6 minutes per page times 10 pages equals 60 minutes for 10 pages.
Which of the following demonstrates the Commutative Property of addition?
4+2=2+4
0(3+1) = 0
(1+2) + 3 =
1 + (2+3)
a*1= a
Answer:
To my calculations, I think its the first one, 4+2=2+4
I hope this helps! ^^
Apologizes if you get it wrong-
Step-by-step explanation:
Help pleaseeee xxxxxxxxx
which of the following is a true statement about a rhombus? a) the diagonals are congruent b) The opposite angles are supplementary c) all four angles are congruent d) the diagonals are perpendicular
Answer:
B
Step-by-step explanation:
X+2y=-9
Solve for Y km
Answer:
y = - 1/2x - 4.5
Step-by-step explanation:
Step 1:
x + 2y = - 9 Equation
Step 2:
2y = - x - 9 Subtract x on both sides
Answer:
y = - 1/2x - 4.5 Divide 2 on both sides
Hope This Helps :)
Please help!!!!!!!!!!!!!!!!!!!!!!!!
the answer is A cuz non of the number are repeated
A local club had a fundraiser to raise money for 15 different programs. They
raised $1,275. The club wants each program to get the same amount of money.
How much should each program receive?
Answer:
The answer is 85. each program gets $85 each.
Step-by-step explanation:
Divide 1275 and 15
4(x + 63x
Part A If a and b are different real numbers, what is the form of the solution of this equation?
A. a=a
B. a= b
C. x= a
D. X=-X
Part B How many solutions does this equation have? Enter the answer in the box.
Your beginning balance on your lunch account is $42. You buy lunch for $1.80 every day and sometimes buy a snack for $0.85. After 20 days, you have a balance of $0.05. How many snack did you buy?
Answer:
53 snacks
Step-by-step explanation:
3/8 divided by 1/2 equals what
Answer:
0.75 or 3/4Step-by-step explanation:
3/8 = 0.375
1/2 = 0.5
0.375 ÷ 0.5 = 0.75
3/8 ÷ 1/2 = 3/4
Hope this helps! <3
Arrow is planning to bake approximately 305 cookies. If 3 pounds of cookie dough make 96 cookies, how many pounds of cookie dough should he make?
Answer: 10
Step-by-step explanation: 96 divided by 3 is 32
32 x 10 = 320 you can't get exactly 305.
What is a solution to (x + 6)(x + 2) = 60?
Answer:
x=4 or -12
Step-by-step explanation:
Questions in the picture
Answer:
This is not a function. This is because if there are any repeating x values (the first values of each set) it is not a function. It is okay for there to be repeating y values (the second values of each set) but not x values.
Step-by-step explanation:
I am guessing the question is if this is a function.
During the summer, the town pool is open for 7 1/2 hours during the day. Each lifeguard works a shift for 3/4 of an hour. How many shifts are there during the day? do it in fraction form
can someone please help?
What is the slope of the line through (13,6) and (13,-11)
Answer:
Undefined
Step-by-step explanation:
A quiz had 20 questions. Andre scored 16 of them correctly. What was
Andre's percent score? *
Answer:
80%
Step-by-step explanation:
16 divided by 20
How many solutions does the equation 3x-9=3(x-3) have ?
Answer:0
Step-by-step explanation:
3x^9=3(x-3
We move all terms to the left:
3x^9-(3(x-3)=0
Answer:
1 solution which is infinite solutions
Step-by-step explanation:
There is only one solution to this because if we simplify both sides of the equation, we get 3x-9=3x-9. When we add 9 to both sides we are left with 3x=3x and subtracting 3x from both sides will make the equation 0=0 which is infinite solutions. This is the only answer/solution we can get from this problem