Answer:
acd
Step-by-step explanation:
4. Provide an appropriate response. Round to the nearest hundredth.
(1 point)
In a certain town, 40% of adults have a college degree. If four adults from the town are
selected at random, the probabilities that 0, 1, 2, 3, or 4 of them will have college degrees are
provided in the accompanying table. Find the standard deviation for the probability
distribution
Х P(x)
0 0.1296
1 0.3456
2 0.3456
3 0.1536
4 0.0256
According to the discrete distribution given, the standard deviation is of: 0.98.
The expected value of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability, hence:
[tex]E(X) = 0.1296(0) + 0.3456(1) + 0.3456(2) + 0.1536(3) + 0.0256(4) = 1.6[/tex]
The standard deviation is the square root of the sum of the multiplication of each probability and the difference squared between the observation and the mean, hence:
[tex]\sqrt{V(X)} = \sqrt{0.1296(0-1.6)^2 + \cdots + 0.1536(3-1.6)^2 + 0.0256(4-1.6)^2} = 0.98[/tex]
The standard deviation is of 0.98.
A similar problem is given at https://brainly.com/question/25650097
operación de calculo 40+30+18=
40 + 30 + 18
= 70 + 18
= 88
Answer:
88
Step-by-step explanation:
40+30+18=70+18=88
A person bikes 2
1
2
miles at a constant rate in
1
8
of an hour.
What distance, in miles, does the person bike in an hour?
Answer:
The person bikes 20 miles in an hour
Step-by-step explanation:
HELPPP LAST ATTEMPT!!
Answer:
Step-by-step explanation:
I answered this same question but uhm it’s (-6,3) just click on my pfp to see where I answered it :3
Solve for the measure of angle G in degrees.....
Answer:
Angle G = 76 degrees
Step-by-step explanation:
66 + 2x + x = 180
66 + 3x = 180
3x = 114
x = 38
2(38) = 76
Answer:
76 degrees is the answer hope this help if I'm wrong I'm so sorry
simplify this algebraic expression completely 5y - 3(y+2)
Answer: 2y - 6
Step-by-step explanation:
This problem utilizes the Distributive Property of Multiplication. It states that: a(x + y) = ax + ay.
Thus, utilizing this property (distributing -3), change the equation into:
5y - 3y - 6
Then, simply combine like terms to get:
2y - 6
Hope it helps :) and let me know if you want me to elaborate.
YALL PLS HELP IM GOVE BRAINLIST PLSSS
Answer:
If the wheels of diameter of 20 inches rotate 37 times then she will travel 2325.71 inches or 59 m.
Step-by-step explanation:
pls mark as brainliest need to rank up
25
A man earns N 5,000.00 for 10
days work. How should he earn in
14 days, if working at the same
rate
Answer:
N 7,000.00
Step-by-step explanation:
He earns N 5,000.00 for 10 days of work so divide the 5,000.00 by 10
5,000.00/10= 500.00 ; this is the amount of money he makes in 1 day
Then multiply this amount make in 1 day by 14 to find how much the man makes in 14 days.
500.00*14=7,000.00
Therefore, the man makes N 7,000.00 in 14 days.
Felisa read the first 60 pages of a book in 3 days. She reads the last 90 pages in 6 days. Are these reading rates equivalent? Explain your reasoning.
Translate the following verbal statement into an algebraic equation and then solve:
Mariah bought a bookcase on sale for $340, which was two-fifths of the original price. What was the
original price of the bookcase?
Answer:
x times 0.4 = 340
x = 850
Step-by-step explanation:
340 / 0.4 = 850
5 kilograms = ...... grams (Conversion factor: 1 kg = 1,000 g)
Answer:
5000 g
Step-by-step explanation:
1 kg = 1000 g
5 kg is 5 times 1 kg
5 * 1 kg = 5 * 1000 g
5 kg = 5000 g
Help! Will give brainliest!
9514 1404 393
Answer:
$5,336
Step-by-step explanation:
The formula for an ordinary annuity is ...
A = P((1 +r)^t -1)/r
We want to find P when A=70000, r=0.059, t=10
P = Ar/((1 +r)^t -1) = 70000(0.059)/(1.059^10 -1) ≈ 5336
Owen must contribute $5,336 each year for 10 years to have $70,000.
_____
Additional comment
If this is an annuity due, with contributions made at the beginning of the year, the above contribution amount can be divided by 1.059. That will give $5038 as the contribution amount.
For the triangle shown on the left,
find the length of the side labeled x
find the measure of angle A in degrees
Answer:
The mesure for angle A is 60 degrees. The leangth for side X is 28
Step-by-step explanation:
A large bottle contains 1.7 liters of olive oil. A medium-sized bottle has 0.2 times the amount of olive oil as
the large bottle.
How much more olive oil does the large bottle contain than the medium-sized bottle?
There are
more liters of olive oil in the large bottle than the medium-sized bottle.
Answer:
1.36
Step-by-step explanation:
Medium Bottle hold .34. Take this and subtract from 1.7 and get 1.36
Please help me out guys! Giving brainliest, liking the answer, and giving a five stars to whoever gives an actual answer. (Please help my grades are closing) ty :)
Answer:
A. y = 3x
Step-by-step explanation:
A proportional relationship is described by an equation of the form ...
y = kx
The equation of answer choice A is in that form with k=3. It describes the relationship as proportional.
__
Answer choice B gives a single point on the position versus time graph. There is nothing to indicate it is part of a proportional relation.
Answer choice C tells you the relationship between time and distance (speed) is not constant. That assures you the relationship is NOT proportional.
Answer choice D does not tell you that the time starts counting when the turtle starts at the rock. It tells you the relation is linear, but does not tell you the relation is proportional.
The radius of the earth is approximately 6400 km. The equator is the circle around the earth dividing it into the northern and southern hemisphere. (The center of the earth is also the center of the equator.) What is the length of the equator?
Use 3.14 for .Round your answer to the nearest ten thousand.
Answer:
Length of equator = 40212.39 km
Step-by-step explanation:
Hope this helps! Please mark brainliest for you can! :)
Answer:
40,000 km
Step-by-step explanation:
The circumference is given by the formula ...
C = 2πr
For the given values of π and radius, the circumference is ...
C = 2·3.14·6400 km = 40,192 km
Rounded to the nearest 10,000, the length of the equator is 40,000 km.
_____
Additional comment
The original definition of the meter was 1/10,000,000 of the distance from the north pole to the equator, through Paris. Essentially, the polar circumference of the earth was defined as about 40,000 km. The polar distance in the southern hemisphere will differ from that in the northern hemisphere, and apparently, the chosen longitude also makes a difference. All of these are different from the equatorial circumference. That definition has long been superseded.
What is the least number by which 700 should be multiplied to make it a prefect cube?
The answer is Too make 700 a perfect square is 7
The finishing times for a race happen to be normally distributed with a mean of 10.2 seconds and a standard deviation of 1.4 seconds. Find the cut off score for the top 10%. Interpret this result.
Using the normal distribution, it is found that the cut off score for the top 10% is of 8.4 seconds. It means that a person with a time of 8.4 seconds or lower is in the faster 10% of runners.
In a normal distribution 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]
It 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, which is the percentile of X.In this problem:
Mean of 10.2 seconds, hence [tex]\mu = 10.2[/tex]Standard deviation of 1.4 seconds, hence [tex]\sigma = 1.4[/tex].The lower the times, the faster the runners are, hence, the cut off score for the top 10% is the 10th percentile, which is X when Z has a p-value of 0.1, so X when Z = -1.28.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-1.28 = \frac{X - 10.2}{1.4}[/tex]
[tex]X - 10.2 = -1.28(1.4)[/tex]
[tex]X = 8.4[/tex]
The cut off score for the top 10% is of 8.4 seconds. It means that a person with a time of 8.4 seconds or lower is in the faster 10% of runners.
A similar problem is given at https://brainly.com/question/24663213
Christopher bought 15 feet of fabric from Walmart. The fabric cost $1.75
per foot, including sales tax. If Christopher gave the cashier $30, how much
change should he receive?
O $2.40
$6.00
$8.55
O $3.75
Answer:
He should recieve 3.75 in change
Step-by-step explanation:
1.75x15=26.25
30-26.25=3.75
10,250 divided by 301
By which rule are these triangles congruent?
A)AAS
B)ASA
C)SAS
D)SSS
In ΔPQN and ΔSQN,
PN = SN (Given)
PQ = SQ (Given)
QN = QN (Common)
∴ ΔPQN ≅ ΔSQN (By SSS Criteria)
Option D is the correct answer.
Please mark as Brainlliest.
A committee including 2 boys and 2 girls is to be formed from a group of 6 boys and 5 girls. How many different committee can be formed from the group
Step-by-step explanation:
well, we need to multiply the possibilities of forming a group of 2 boys out of 6 with the possibilities to firm a group of 2 girls out of 5.
the first is 6 over 2
6! / (2! × (6-2)!) = 6×5/2 = 3×5 = 15
the second one is 5 over 2
5! / (2! × (5-2)!) = 5×4/2 = 5×2 = 10
so, these 15 possibilities combined with the 10 possibilities makes
15×10 = 150
possibilities to form this committee.
Subtract the sum of (-82) and 43 from (-33)
Answer:
6
Step-by-step explanation:
Prove that a line that divides two sides of a triangle proportionally is
parallel to the third side.
1.
1. Let ABC be a triangle. Segment
DE intersects sides AB and CA,
respectively and divides those
sides proportionally, As such,
ADIAB=AE/AC
2
2.
3. Triangles ADE and ABC are
3.
4.
4.
5. Segments DE and BC must be
to one
another
5. By the Converse of the
Theorem
Answer:
Step-by-step explanation:
If (from the image attached) DE is a line segment that divides the sides AB and AC proportionally in ΔABC then we can prove that line segment DE is parallel to BC using the parallel transversal theorem. Based the parallel transversal theorem, the triangles ABC and ADE are similar therefore angles are congruent and line DE must be parallel to line BC
Vocabulary How do you know if a situation represents a proportional relationship?
Answer:
write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.
Simplify
25⋅5⋅5⋅4
500
2000
2500
5000
Answer:
2500
Step-by-step explanation:
Use a calculator.
Answer:
5000
Step-by-step explanation:
i think this is correct if not very sorry
A football coach filled a water cooler with 37.85 liters of water before a game. The players drank 25.9 liters during their game. How many liters of water were left in the cooler?
Answer:
37.85 subtract by 25.9 that's how I got 11.95 liters left
Which statement represents the expression?
3×2+5
a.the product of 3 and the sum of 2 and 5
b.3 times the sum of 2 and 5
c.3 times 2 plus 5
d.the product of 3 and 2 combined with 5
Answer:
answer is D (the product of 3 and 2 combined with 5)
because, product of 3 and 2 = 3x2 = 6 and 6+5 = 11.
hope it helps u...
Answer:
c.3 times 2 plus 5
Step-by-step explanation:
pretty sure its right
Write an equation in slope-intercept form for the line perpendicular to y=2x−3 that passes
through the point (−3,−3).
Answer:
y = -1/2x - 9/2
Step-by-step explanation:
If two lines are perpendicular to each other, they have opposite slopes.
The first line is y = 2x - 3. Its slope is 2. A line perpendicular to this one will have a slope of -1/2.
Plug this value (-1/2) into your standard point-slope equation of y = mx + b.
y = -1/2x + b
To find b, we want to plug in a value that we know is on this line: in this case, it is (-3, -3). Plug in the x and y values into the x and y of the standard equation.
-3 = -1/2(-3) + b
To find b, multiply the slope and the input of x (-3)
-3 = 3/2 + b
Now, subtract 3/2 from both sides to isolate b.
-3 - 3/2 = b
-6/2 - 3/2 = b
-9/2 = b
Plug this into your standard equation.
y = -1/2x - 9/2
This equation is perpendicular to your given equation (y = 2x - 3) and contains point (-3, -3)
Hope this helps!
What is 2 - (7/8- 3/4)?
Answer:
15/8
Step-by-step explanation:
2-(7/8-3/4)=
2-(1/8)=
15/8
