Answer:
0.84 ; 0.0349545 ; symmetric
Step-by-step explanation:
Given that:
p = proportion of false alarm
Sample size (n) = 110
The mean of p
Since 84% of car buglar alarms turns out as false, then, the mean value of p = 0.84
To obtain the standard deviation ; we use the relation ;
√(p(1 - p) / n)
Standard deviation :
√0.84(1 - 0.84) / 110
√0.84(0.16) / 110
√0.1344 / 110
√0.0012218
= 0.0349545
np = 110 * 0.84 = 92.4 (distribution is symmetric or normal)
Can U help me please
Answer:
The equation that represents the relation between the figure number, x, and the number of the tiles, y is y = 2x + 1
Step-by-step explanation:
The slope-intercept form of the equation is y = m x + b, where
m is the slope ⇒ constant rate of changeb is the y-interceptIn the given pattern
∵ x represents the figure number
∵ y represents the number of tiles
∵ At x = 1, y = 3
∵ At x = 2, y = 5
∵ At x = 3, y = 7
∵ 5 - 3 = 2 and 7 - 5 = 2
→ That means the constant rate of change is 2
∴ m = 2
→ Substitute it in the form of the equation above
∴ y = 2x + b
→ To find b substitute x and y by the first figure
∵ x = 1 and y = 3
∴ 3 = 2(1) + b
∴ 3 = 2 + b
→ Subtract 2 from both sides to find b
∴ 3 - 2 = 2 - 2 + b
∴ 1 = b
→ Substitute it in the equation
∴ y = 2x + 1
The equation that represents the relation between the figure number, x, and the number of the tiles, y is y = 2x + 1
Bella had already read 20% of the book before her teacher assigned it to the class. She is choosing between two options to finish reading the book
. option 1: read 25% of the reminding pages each night
. option 2: read 24 pages each night
which option should bella use to finish the book in the least amount of time ?
Answer:
How big is the book?
If it has more than 96 pages remaining 25% each night is quicker if it has less that 96 or less remaining 24 pages a night is faster
Step-by-step explanation:
So let's say that there are 100 pages of the book Bella is reading. With this information, because she read 20% of the book, there is still 80% left.
Let's look at option 1: read 25% each night. Because 25% of 80 is 20, this would mean Bella would have to read 20 pages each night.
Let's look at option 2: read 24 pages each night.
With this information, we can already tell which option is going to get Bella to read the book faster.
Answer: Option 2.
Hope this helped you! Apologies if there are any mistakes! xoxo
-Sav
Which of these ratios is equivalent to 24 scarves to 8 hats?
3 to 1
O 2 to 3
03 to 2
0 1 to 3
Answer:
Equivalence= 3/1= 3
3 to 1
Step-by-step explanation:
Giving the following information:
Number of scarves= 24
Number of hats= 8
First, we need to divide the number of times that 8 hats enter in 24 scarves:
Number of times= 24/8= 3
Now, we know that 8 hats enter 3 times in 24 scarves. Therefore, the equivalence is:
Equivalence= 3/1= 3
3 to 1
PLS HELP THIS IS DUE IN 10 MINUTES!!!
Answer:
yes
Step-by-step explanation:
All linear functions crossing the origin are proportional.
HTH :)
Item 4
Amy raises $58.75 to participate in a walk-a-thon. Jeremy raises $23.25 more than Amy. Oscar raises 3 times as much as Jeremy. How much money does Oscar raise
Answer:
oscar raises 246 dollars.
Step-by-step explanation:
you add 23.25 to amys amount and then times that by 3 to find the answer.
Answer:
I think its 246
Step-by-step explanation:
if you add 58.75 to 23.25 you get you get 82 and when you multiply by 3 you get 246
Johannes needs to buy replacement team uniform
Answer:
D.
Step-by-step explanation:
(25 POINTS) Terry realized that 25% of his money was $12.50. He made a double number line to represent this. What number would go in the first missing box?
Answer:
you would double it A 0 12.50 25.00
B 0 25 50
Step-by-step explanation:
not 100% hope > helped
in how many ways can two coins fall?
3. Last month, Luiza's bank statement said that she had money in her account. Her bank balance was 109.32 rubles. This month, Luiza's bank balance is -87.12 rubles. What does this mean? *
Answer:
this means that she had spent 196.44 dollars
Step-by-step explanation:
109.32 (started off with)
-87.12(how much she ended up with)
we know that she went over cause she ended up with a negative so you just add how much she went over and how much she had orgiginally had
Which statements are true? Check all that apply
Answer:
1 1/2 >15
Step-by-step explanation:
HELP
Lin ran 2 ¾ miles in ⅖ of an hour. Noah ran 8 ⅔ miles in 4/3 of an hour.
Who ran faster, Noah or Lin?
How far would Lin run in 1 hour?
How far did Noah run in 1 hour?
How long would it take Lin to run 1 mile at that rate?
How long would it take Noah to run 1 mile at that rate?
Lin ran faster because if you convert 2/5=24mins 4/3=80mins and lin would run 2.5 miles in an hour and Noah would run 0.75 miles
Solve for X. - 7X - 50 less than or equal to -1 and -6X +70 greater than -2
Answer: x ≤ 7
Step-by-step explanastion: 7x-50≤ -1 and -6x +70> -2
Solve separately and then put back together
7x-50≤ -1
Add 50 to each side
7x-50+50≤ -1+50
7x ≤ 49
Divide each side by 7
7x/7 ≤ 49/7
x ≤ 7
-6x +70> -2
Subtract 70 from each side
-6x +70-70> -2-70
-6x> -72
Divide by -6, remembering to flip the inequality
-6x/-6 < -72/-6
x < 12
The first is more restrictive, and since it is an and, we use the more restrictive answer
what is 4^2 - (3.1 + 6.4) + 4.5
Answer:
11
Step-by-step explanation:
Answer
11
Step-by-step explanation:
(−5)(−0.4)(1.8)(−3.25)
Answer:
-11.7 is the correct answer. Hope this helps
Answer:
The answer is -11.7
Step-by-step explanation:
A circular pond has a radius of 35 feet. What is the diameter of the pond?
Answer:
I believe the radius is half the circle which makes the diameter 2x the radius which is 35+35= 70
Median for 5,8,10,1,7,6,15,8,6
Answer: 7
Step-by-step explanation: How I Got 7 is the median is the middle number of the data table so the median is always the middle number of the equation Hope This Helps ;)
The median is the middle number in a set of ordered numbers.
So let's first write our data set from least to greatest.
1, 5, 6, 6, 7, 8, 8, 10, 15
Since the 7 appears in the middle, it's our median.
someone pls help me asap!! :((
Step-by-step explanation:
To graph them, sub 2 random x/y numbers and find the corresponding coordinates then plot these 2 points on the axes then connect to form a straight line :)
Topic: coordinate geometry
If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!
Two elves can make 5 toys in 10 minutes
How many toys can four elves make in 30 minutes?
Answer:
Step-by-step explanation:
two elves 5 toys 10 minutes
four elves 10 toys 10 minutes
four elves 30 toys 30 minutes
what is the domain and range of the graph?
Answer:
Domain- {-2,0,2}
Range- {0,6,12}
Step-by-step explanation:
Answer:
Domain- {-2,0,2}
Range- {0,6,12}
Step-by-step explanation:
domain is x and range is y
Find the sum: 3 4/5+2 1/4 i need helpnplzzz
Answer:
6 1/20 or as a decimal 6.05
What is the factored form of 36x4 – 25?
(6x2 – 5)(6x2 + 5)
(6x2 – 5)(6x2 – 5)
(6x2 – 25)(6x2 + 25)
(6x2 – 25)(6x2 – 25)
Answer:
A.) (6x2 – 5)(6x2 + 5)
Step-by-step explanation:
y=-3/4x-2 convert into standard form (clear fraction)
Answer:
3x+4y=-8
Step-by-step explanation:
Clear the fraction, so multiply by 4, so, 4y=-3x-8
Then move x to the other side by adding 3x to both sides. 3x+4y=-8
A restaurant gets 593.31 every week. How much will they make in a year? Round your answer to the nearest cent
Answer:
30936.903999
Step-by-step explanation:
Answer:
They will make 28478.88
Step-by-step explanation:
First you multiply 12 by 4 because there is 12 months in a year and there is 4 weeks in one month. So next you will multiply 48 (that’s what 14 by 4 is), by 593.31. And you get 28478.88
PLEASE ANSWER THIS J WILL GIVE 10 POINTS AND BRAINLIEST PLEASE!!!!!
Answer:
The answer is D. I think that is righ.
Step-by-step explanation:
Solve. (x + 5)/3 = 4 for x.
Answer:
X = 7
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
Multiply each side by 3 to cancel out the 3 under x + 5. It should now look like this: x + 5 = 12Subtract 5 from each side, so it now looks like this: x = 7I hope this helps!
In AABC, a = 8, b = 5, and c = 9. What is the value of
angle B.
Which graph represents a function, f(x), that has a slope of 3 units and f(0) = 14?
Please help me
Answer:
A
Step-by-step explanation:
A number, n, is multiplied by -711. The product is -2155. What is the value of n?
Answer:
N equals 3.03 I rounded the answer
Step-by-step explanation:
hope that helps and please give me brianliest
Mathematics:If she uses 486.7 cm of paper to cover the lateral surface area of the cylinder,what is the diameter of the cynlinder?
Answer:
iiamdsjefej 444 i like milk
Step-by-step explanation:
wffdfe
Please help. You bought 4 notebooks for $0.89 each and some reams of paper at a cost of $1.69
each. If you spent a total of $13.70. how many reams of paper did you purchase?
Answer:
6 reams
4 x .89= $3.56
$13.70 - $3.56 = $10.14
$10.14 / $1.69 = 6
Step-by-step explanation:
Answer: 6
Step-by-step explanation
So you have bought 4 note books each for $0.89 each. Right off the bat we have to multiply the 0.89c by the number of books we bought which is 4.
$0.89 x 4 = $3.56
And contuniung in it says that you bought some reams of paper and a ream of paper costs $1.69. And they want to know how much you bought if you spent $13.70 in totall. So all we have to do now is sumbtract the amount of money spent on the 4 notebooks to see how much money is left.
$13.56 -$3.56 = $10.14
Now to find the final answer we have to divide the $10.14 by $1.69 no find out how much reams of paper we bough.
$10.14 ÷ $1.69 = 6
There for the total amount of reams of papar we bought is 6.