Answer:
B. All real numbers greater than or equal to 1971 and less than or equal to 2001.
Step-by-step explanation:
Correct me if I'm wrong
Derrick started a new job at McDonald's. He makes $10 per hour. Which
equation models his total weekly earnings y, in terms of the number of
hours he works x? *
Answer:
10x=y.
Step-by-step explanation:
10 represents the amount he earns an hour. X represents the number of hours so 10x. 10 times the amount of hours equals y (total amount of money)
Answer:
y = 10x
Step-by-step explanation:
The total earnings, y, is equal to the hourly rate, 10, times x, the hours worked.
y equals 10 times x, or, in equation form, y = 10x.
I hope this helps ^^
In a congressional district, 55% of the registered voters are Democrats. Which of the following is closest to the probability of getting less than 50% Democrats in a random sample of size 100?
Is this an example of a sample proportion OR a sample mean?
Answer:
sample mean
Step-by-step explanation:
Using the normal distribution and the central limit theorem, considering that this is a sample proportion, as we are dealing with percentages, it is found that there is a 0.1562 = 15.62% probability of getting less than 50% Democrats in a random sample of size 100.
Normal Probability DistributionIn 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. By the Central Limit Theorem, the sampling distribution of sample proportions of a proportion p in a sample of size n has mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1 - p)}{n}}[/tex].In this problem:
55% of the registered voters are Democrats, hence [tex]p = 0.55[/tex].A sample of size 100 is taken, hence [tex]n = 100[/tex]The mean and the standard deviation of the sampling distribution of sample proportions are given by:
[tex]\mu = p = 0.55[/tex]
[tex]s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.55(0.45)}{100}} = 0.04975[/tex]
The probability of getting less than 50% Democrats in a random sample of size 100 is the p-value of Z when X = 0.5, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{0.5 - 0.55}{0.04975}[/tex]
[tex]Z = -1.01[/tex]
[tex]Z = -1.01[/tex] has a p-value of 0.1562.
0.1562 = 15.62% probability of getting less than 50% Democrats in a random sample of size 100.
To learn more about the normal distribution and the central limit theorem, you can take a look at https://brainly.com/question/24663213
solve for x and y x+y=a;x-y=b
Answer:
x = a + b - a/ 2
y = - b - a/ 2
Step-by-step explanation:
what two numbers multiply to 16 and add to -10?
Answer:
-2 and -8
Step-by-step explanation:
-2 x -8 = 16
-2 + -8 = -10
Answer:
1 and -16
Step by step:
1 x -16 = -16
1 + (-16) = -15
PLZ HELP! QUESTIONS ARE BELOW! :D
Answer:
2) A = 12 in.²
5) A = 737 in.²
6) A = 48 in.²
9) A = 2400 in.²
Step-by-step explanation:
2)
Trapezoid
base1 = 4 in.
base2 = 2 in.
height = 4 in.
A = (b1 + b2)h/2 = (4 + 2)(4)/2 = 12
A = 12 in.²
5)
rectangle + semicircle
A = LW + ½πr²
A = 29 * 20 + ½(3.14)(10²)
A = 580 + 157
A = 737 in.²
6)
A = 8 * 8 - 4 * 4
A = 48 in.²
9)
A = 50 * 60 - 20 * 30
A = 2400 in.²
cuanto es la raiz cuadrada de 123
Answer:
11.0905365064
11.1 (rounded)
Step-by-step explanation:
[tex]\sqrt{123} =11.090[/tex]
Answer:
Step-by-step explanation:
11.0905365064
No Solutions
2x + 9 + 3x + x =
One Solution
2x + 9 + 3x + x =
x +
Infinitely Many Solutions
2x + 9 + 3x + x =
Answer:
.
Step-by-step explanation:
HELPPP W TRIANGLE ABC graph!!??
-3,4. i adding this cause this answer needs atleast 20 characters
2. A jeweler bought an antique watch for $500. He then sold it in his store $850. What was the percent of change in the price of the watch? Show work here A. 41.2% decrease B. 41.2% increase C. 70% decrease D. 70% increase
Answer:
70% increase
Step-by-step explanation:
I WILL GIVE BRAINLIEST PLEASE HELP FULLY (pt 2)
2. Mauricio plans on retiring in 20 years, and he wants to double his money by that time. He has contacted various banks, looking for a CD that compounds interest monthly, and to calculate what annual interest rate he needs, he is using the rule of 72. (3 points: Part I – 1 point; Part II – 1 point; Part III – 1 point)
Part I: What is the rule of 72? To represent the annual interest rate, use r.
Part II: What equation can Mauricio set up to solve for the annual interest rate he needs to double his money by the time he retires?
Part III: What annual interest rate does Mauricio need to double his money by the time he retires?
Answer: What expression can Melanie write to figure out how much her ... Mauricio plans on retiring in 20 years, and he wants to double his money by that time. He has contacted various banks, looking for a CD that compounds interest monthly, and to calculate what annual interest rate he needs, he is using the rule of 72.
Step-by-step explanation: I did what I could man
HELP THE TEACHER IS ASKING FOR MY ANSWERS CUZ I WAS SUPPOSED TO DO IT AND I NEVER WAS PREPARED PLSSS HELP IM NEXT PLS DRAW IT FOR MEE :( EVEN IF ITS EDITED I WOULD APPRECIATE TYSM HAVE A GOOD DAY! (And if u don’t know 1 u don’t have to do both only one but pls try :(
Answer:
Hey I did a few for you :)
Step-by-step explanation:
Hope this helps!
Have a nice day<3
easy algebra question below first correct answer gets brainliest if you put a link you will be blocked and reported
Answer:
option d is the correct answer
Find measure of angle WZY.
Answer:
the answer is 4
Step-by-step explanation:
8x-1=5x+11
3x=12
x=4
What do the signs need to be to multiply to get a positive and add to get a negative ?
An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, the altitude cuts the base into two equal segments. The length of the altitude is 26 inches, and the length of the base is 18 inches. Find the triangle's perimeter. Round to the nearest tenth of an inch.
Answer:
if it was 29inches it would be 78.7
Step-by-step explanation:
The given altitude and the base length of the triangle can be used for
finding the lengths of the other two sides.
The perimeter of the triangle is approximately 73.0 inches
Reasons:
The altitude is the perpendicular bisector of the base of the triangle
Length of the altitude = 26 inches
Length of the base of the triangle, b = 18 inches
Required:
The perimeter of the triangle
Solution:
The base length of the two congruent triangles formed are [tex]\dfrac{18 \, cm}{2}[/tex] = 9 cm
each.
Therefore;
The length of the hypotenuse side, L, is given by Pythagoras's theorem as
follows;
L² = 9² + 26² = 757
The hypotenuse side, L = The length of the equal sides of the isosceles triangle
Therefore, the perimeter of the triangle, P = b + 2·L
Which gives;
To the nearest tenth, the perimeter of the triangle, P = 18 + 2·√(757) ≈ 73.0
The perimeter of the triangle, P ≈ 73.0 inches
Learn more here:
https://brainly.com/question/19267912
which of with of the following would be the most appropriate unit to weigh a single medicinal pill
Answer:
hi, I need the weights provided in the question to answer this question
20 points!! Pls help me out!!
Answer: C. J=5
Step-by-step explanation: Hope this help :D
A letter is chose at random from the word PROGRESSIVENESS. Find the probability that the letter is an E, given it is a vowel.
2/5
4/15
1/5
3/5
Answer:
1/5
Step-by-step explanation:
there is 3 e's out of a 15 letter word
reduces down to 1/5
What two numbers multiply to get 18 but add to get -12
Answer:
-6+3[tex]\sqrt{2}[/tex] and -6-3[tex]\sqrt{2}[/tex]
Step-by-step explanation:
xy = 18
x+y = -12
y = -12-x
substitution method:
x(-12-x) = 18
-12x - x² - 18 = 0
-x² - 12x - 18 = 0
-(x² + 12x + 18) = 0
used quadratic formula:
(-12±√144 - 4(18)) ÷ 2
(-12 ± [tex]\sqrt{72}[/tex]) ÷ 2
(-12 ± 6[tex]\sqrt{2}[/tex]) ÷ 2
= -6 ± 3[tex]\sqrt{2}[/tex]
5. y=12
Point:
Slope:
What are or is the point. And what’s the slope
Answer:
Slope=0
Step-by-step explanation:
Point=Y
Please help ASAP (pic) will give brainilest
Answer:
493,864$
Step-by-step explanation:
17,638x28$
do you need a pic (to show my work) or are you talking about your pic
Consider two functions: g(x)=−x^2−6x and the quadratic function f(x) shown in the table.
Which statements are true?
Answers:
f(x) is greater than g(x) on the interval (0,3)
g(3) is less than f(3)
The average rate of change of f(x) is greater than g(x) on the interval [0,3]
Answer:
The average rate of change of f(x) is greater than g(x) on the interval [0,3]
Step-by-step explanation:
:)) Hope it helps!!
30 is what percent of 500
Answer:
6%
Step-by-step explanation:
30/ 500 = x/100
30*100= 3,000
3,000 / 500 = 6
it would be 6% hope this helps
what do I do and how
Answer:
f(x) is another way of saying "y", but when x is replaced with a number, it just means that x = that number.
Since A says to find f(7), it means that in this scenario, x = 7. So, 2x - 5 is turned into 2(7) - 5, which equals 14 - 5, which equals 9.
So, f(7) = 9.
You can then apply this to the rest of the numbers you are given.
I hope this helps! :)
hii please help asap ill give brainliest thanks
Answer: A) Buddhism
Step-by-step explanation:
Answer:
Thee answer is A. Buddhism. Hope this helps!
Step-by-step explanation:
Find the image of D under the translation described by the translation rule T<-11, 8>
- E
- C
- A
- B
Answer:
B
Step-by-step explanation:
(x +(-11)) means that you move point D to the left by 11.
(y + 8) means that you move the point D up by 8
this will give you a point B
Brianna has a balance of $8,000 on her credit card. After talking to a financial advisor, Brianna decided to get a loan from the bank and discontinue using her credit card. The bank will charge Brianna 3.5% interest. Which of the following could be used to calculate the total repayment on Brianna’s loan after 4 years if she has a monthly payment of $178.85?
A. 4(178.85)
B. 4(12)(178.85)
C. 4(12)(178.85) − 8000
D. 4(8000)(0.035)
What is the advantage of valence number?
Answer:
The presence of many unpaired electrons in the valence shell of an atom enables it to form multiple bonds with other atoms. The paired electrons present in the valence shell do not take participate in the formation of chemical bonds as per the valence bond theory.
Megan's age is three years more than four times her daughter's age. If Megan's daughter's age is $d$ , Megan's age is
Answer: 4d + 3
Step-by-step explanation:
Megan's daughter's age = d
Based on the information given, since Megan's age is three years more than four times her daughter's age, this can be written mathematically as:
= (4 × d) + 3
= 4d + 3
Therefore, Megan's age is 4d + 3.
For example, if the daughters age is 7 years, Megan's age will be:
= 4d + 3
= 4(7) + 3
= 28 + 3
= 31 years
Solve the following equations mentally 1. 5 – x = 8 2. -1 = x – 2 3. -3x = 9 4. -10 = -5x
Answer:
1. 5 – x = 8 , x = -3
2. -1 = x – 2 , x = 1
3. -3x = 9 , x = -3
4. -10 = -5x , x= 2
Step-by-step explanation:
Answer:
1. x= -3 ,2. x=1 , 3.x= -3 ,4.x=2