Answer:
14
Step-by-step explanation:
56 divided by 4 is 14
sume that the change in daily closing prices for stocks on the New York Stock Exchange is a random variable that is normally distributed with a mean of $0.35 and a standard deviation of $0.33. Based on this information, what is the probability that a randomly selected stock will close up $0.75 or mor
Answer:
0.1131 = 11.31% probability that a randomly selected stock will close up $0.75 or more.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Normally distributed with a mean of $0.35 and a standard deviation of $0.33.
This means that [tex]\mu = 0.35, \sigma = 0.33[/tex].
What is the probability that a randomly selected stock will close up $0.75 or more?
This is 1 subtracted by the p-value of Z when X = 0.75. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{0.75 - 0.35}{0.33}[/tex]
[tex]Z = 1.21[/tex]
[tex]Z = 1.21[/tex] has a p-value of 0.8869.
1 - 0.8869 = 0.1131
0.1131 = 11.31% probability that a randomly selected stock will close up $0.75 or more.
If 30 men can do a work in 8 days how many men can do the same work in 12 days
Answer:
Step-by-step explanation:
Please help just need to finish this class and I graduate thanos in advance
A while back, Caleb paid a car insurance
premium of $3,530 per year. Now he pays 20%
more. What does Caleb pay now?
$
Submit
HELPPP ILLL MARK BRAINLIEST
Which ordered pair represents a solution to both equations?
A (2, 0)
B (-3, -15)
C (0, -21)
D (3, 3)
See picture for Graph
A boat is heading towards a lighthouse, where Serenity is watching from a vertical distance of 141 feet above the water. Serenity measures an angle of depression to the boat at point A to be
9°. At some later time, Serenity takes another measurement and finds the angle of depression to the boat ( now at point B ) to be 61°. Find the distance from point A to point B. Round your answer to the nearest foot if necessary.
Please help me
All the pts I have
A boat is heading towards a lighthouse, where Serenity is watching from a vertical distance of 141, the distance from point A to point B. is mathematically given as
BC=78.1575
What is the distance from point A to point B.?Generally, the equation for the angle is mathematically given as
[tex]tan\theta=\frac{oop}{adj}[/tex]
Therefore
[tex]tan\theta=\frac{141}{AC}[/tex]
Therefore
[tex]AC=\frac{141}{tan 9}[/tex]
AC=890.2389
In conclusion, with triangle BDC
[tex]tan61=\frac{141}{BC}[/tex]
Therefore
BC=141/tan61
BC=78.1575
Read more about distance
https://brainly.com/question/989117
#SPJ1
hich of the following can be used to find how many milliliters are in 0.43 L?
Answer:
430ml
Step-by-step explanation:
there are 1000ml in 1L so take 0.43 times with 1000 to find the answer
HELP ASAP !!!!!!!!!!!!!!
Answer:
x = sqrt(17)
Step-by-step explanation:
Angle B is 90 degrees; the line BC is a radius of circle C and line AB is a tangent line of BC. Since they must be perpendicular, angle B is 90 degrees.
Now use the pythagorean theorem to solve for x.
c=9, a = 8, b= x
a^2+b^2=c^2
8^2+x^2=9^2
x=sqrt(81-64)
x=sqrt(17)
Find the surface area of the rectangular prism
Answer:
166 in^2
Step-by-step explanation:
Formula: A=2(wl+hl+hw)
w = 4
l = 7
h = 5
wl = 4 x 7 = 28
hl = 5 x 7 = 35
hw = 5 x 4 = 20
Then we add.
28 + 35 + 20 = 83
And the multiply by 2.
83 x 2 = 166
m-0.63>9.7 (need answer this is a test) i will give u brainliest if u answer right
m > 10.33 hope this helps
Marina starts with $20 in her bank account and she saves $5 each week. Robby has $100 in his bank account, and he saves $2.50 each week. After how many weeks will Macy and Robby have the same amount in their accounts and how much money will that be? Write a system of equations to solve.
Answer:
32 at 180
Step-by-step explanation:
HELP YO GIRL OT PLZZZZ!!!!!!!!
FIRST ONE TO AWNSER AND CORRECT GETS BRAINLYIST AND ALOT OF POINTS!!!!!!!!!!!!!!
A. 16 in.3
B. 22 and one-half in.3
C. 200 in.3
D. 212 and one-half in.3
Answer:
C
Step-by-step explanation:
This is the answer because you have to use the formula of volume
which is L x W x H then you get your answer
It took 45 seconds to fill an 18 gallon container. At this rate how long will it take to fill a 40 gallon container
Answer:
[tex]18 \: gallons = 45 \: seconds \\ 40 \: gallons = ( \frac{40}{18} \times 45) \: seconds \\ = 100 \: seconds[/tex]
Solve the equation.Leave your answer as simplest form a fraction
Answer:
n = 15
Step-by-step explanation:
5/2 = n/6 Multiply both sides by 6
6 * 5/2 = 6 n/6
30/2 = n
n = 15
Consider a random variable Z which has a standard normal distribution (mu = 0, sigma = 1). Choose which of the following values would be equivalent to the following probability:
P (Z > 0.54)
A. P(Z > 0.54.
B. P(Z < 0.54).
C. 1 - P(Z < - 0.54).
D. 1 - P(Z < 0.54).
Answer:
A. P ( Z > 0.54) = 0,7054
B. P ( Z < 0.54) = 0.2946
C.1) 1 - 0.2946 = 0.7054
D.1) 1 - 0.2946 = 0.7054
Step-by-step explanation:
A) P ( Z > 0.54) = 1 - P ( Z ≤ 0.54)
P ( Z ≤ 0.54) = 0,2946 from z-table
P ( Z > 0.54) = 1 - 0,2946
P ( Z > 0.54) = 0,7054
B) P ( Z < 0.54) = 0.2946
C) 1 - P ( Z < - 0,54)
1 - 0.2946 = 0.7054
D) 1 - P ( Z < 0,54)
1 - 0.2946 = 0.7054
pls help asap thanks <3
Answer:59
Step-by-step explanation:
beacause you need to added them all together
A baker makes a circular cake that has a radius of 7 inches. If
the baker wants to cover the top of the cake with frosting, how
much frosting should the baker use?
9514 1404 393
Answer:
154 in²
Step-by-step explanation:
The area of the cake top is given by the formula for the area of a circle.
A = πr²
Here, it is convenient to use the approximation π ≈ 22/7, so we have ...
A = (22/7)(7 in)² = 154 in²
The baker should use 154 square inches of frosting for the top of the cake.
What is the third quartile, Q3, of the following distribution? 10,25,18,31,16,27,5,13,32,24,15,21,18,18,24,4,8,11,11,23
Find the simplified product
9514 1404 393
Answer:
(b) -30x²√(2x)
Step-by-step explanation:
Squares can be removed from under the radical.
Answer:
The answer is b on edg
Step-by-step explanation:
Just took the assignment
how can we get equation b from equation a ?
Answer:
Choose 1 answer: Multiply/divide both sides by the same non-zero constant. Multiply/divide both sides by the same variable expression.
Step-by-step explanation:
Answer:
Multiply/divide both sides by the same non-zero constant
hope this helps
have a good day :)
Step-by-step explanation:
The population of a city decreases by 3.1% per year. If this year's population is 142,000, what will next year's population be, to the nearest individual?
Answer:
100 - 3.1 = 96.9
142000 - 96.9 = 1410903.1
PLEASEEEEEE HELPPPP IM BEGGING ISOMEONE PLEASEEEE
Answer:
Reason : by ASA , x = 36
Step-by-step explanation:
∠ABC = ∠EBD (vertically opposite angle)
BC = BD = 54 (same length)
∠BAC = ∠BDE (alternate interior angles)
By ASA , ΔABC ≅ ΔDBE
[tex]54 \times x = 36 \times 54\\\\x = 36[/tex]
If CP = RS 3000 and SP=RS 3300 find profit percentage
Answer:
Step-by-step explanation:
CP=Rs 3000
SP=Rs 3300
since SP is greater than CP there is profit
profit%=sp-cp/cp*100%
=3300-3000/3000*100%
=300/3000*100%
=(300*100/3000)%
=30000/3000%
=10%
Answer:
10 percentStep-by-step explanation:
cp=Rs3000
sp=Rs3300
so cp<sp there is profit
profit=sp-cp
=Rs3300-Rs3000
=Rs300
Now
profit percent =profit × 100percent
cp
= 300 ×100
3000
=10percent
hope it helps
PLZ HELP!!!!!!!!!!!!!!!!
Answer:
B) 119.1
Step-by-step explanation:
First, find your circle area
[tex]A=\pi r^{2} \\A=\pi 7^{2} \\A=153.9[/tex]
Then get the area of the square, we will worry about the tringles on each side in the last step.
l=12
w= 14 (Radius of circle times 2)
A=wl
A=14*12
A=168
Now the triangle
h=14 (Radius of circle times 2)
b=(27 - 12) / 2 = 7.5 ( total length 27 minus 12 divided, by 2 since there's 2 triangles on each side.
[tex]A=h\frac{b}{2} \\A=14\frac{7.5}{2} \\A=52.5[/tex]
Now add 2 triangles, the square and substract the circle
52.5+52.5+168 = 273
273 - 153.9 = 119.1 in^2
Which answers describe the shape below?
Answer:
That would be E. trapezoid
Step-by-step explanation:
Answer:
E is the answer thank me later
40 POINTS!!!!! Find the value of x in the triangle shown below.
Answer:
a
Step-by-step explanation:
18 packs of socks fit into a box.
There are 7 boxes.
How many packs of socks are there in total?
Answer:
no. of packs in one box = 18
no. of boxes = 7
total no. of packs of socks = 18*7
=126
Answer:
126 packs
Step-by-step explanation:
1 box = 18 packs
7 boxes = ? packs
7 * 18 = 126 packs
) If the pattern shown continues, how many black keys appear on a portable keyboard with 49 white keys? Suggestion: use equivalent ratios or a rate table to confirm your answer.
Answer:
35
Step-by-step explanation:
Here we see 5 black keys for every 7 white keys.
So the ratio is 5:7
If we need 49 white keys, find the amount we scale the original ratio by:
49/7 = 7
So we are scaling by a factor of 7.
The number of black keys would be 5 * the scale of 7. = 35
So there should be 35 black keys.
Using proportions, it is found that 35 black keys appear on a portable keyboard with 49 white keys.
This question is solved by proportions, applying a rule of three.The equivalent ratio given, from the picture, is that for 7 white keys, there are 5 black keys. Hence, how many black keys will be there when there are 49 white keys?The rule of three is:
7 white keys - 5 black keys
49 white keys - x black keys
Applying cross multiplication:
[tex]7x = 49 \times 5[/tex]
Simplifying both sides by 7:
[tex]x = 7 \times 5 = 35[/tex]
Hence, 35 black keys will appear.
A similar problem, also involving proportions, is given at https://brainly.com/question/24372153
slope= -1/2, y-intercept = 4
Answer:
y=-1/2x+4
Step-by-step explanation:
y=mx+b
where m=slope and b=y-intercept
so
y=-1/2x+4
Anders throws a 10-faced dice with numbers from 1 to 10. Then he spins a coin.
b) Find the probability of scoring: i) a head and a multiple of 3 ii) a tail and a prime number
Answer:
3/20
1/5
Step-by-step explanation:
Sample space :
10 - faced die :
(1, 2, 3, 4,5, 6, 7,8, 9, 10)
Coin = (H, T)
P(H) = 1/2
Multiple of 3 = 3, 6, 9 = 3
P(Multiple of 3) = 3 / 10
P(H and multiple of 3) = 1/2 * 3/10 = 3 /20
2.)
P(tail) = 1/2
Prime numbers = (2, 3, 5, 7) = 4
P(A prime number) = 4 / 10
P(tail and prime number) = 1/2 * 4 /10 = 4 /20 = 1/5