Answers
Answer:
59°
Step-by-step explanation:
γ=cos^-1(18^2+22^2-20^2)/2*18*22)=58.99242°
Related Questions
albert needs to make a grade of more than 90 to get an a in his math class
Answers
5.6 is what percent of 70?
Answers
Answer:
8%
cba to explain loolll
According to Inc, 79% of job seekers used social media in their job search in 2018. Many believe this number is inflated by the proportion of 22- to 30-year-old job seekers who use social media in their job search. Suppose a survey of 22- to 30-year-old job seekers showed that 308 of the 370 respondents use social media in their job search. In addition, 281 of the 370 respondents indicated they have electronically submitted a resume to an employer.
A) Conduct a hypothesis test to determine if the results of the survey justify concluding the proportion of 22- to 30-year-old job seekers who use social media in their job search exceeds the proportion of the population that use social media in their job search. Use α = 0.05.
1) State the null and alternative hypothesis.
2) Find the value of the test statistic.
3) Find the p-value.
B) Conduct a hypothesis test to determine if the results of the survey justify concluding that more than 70% of 22- to 30-year-old job seekers have electronically submitted a resume to an employer. Using α = 0.05, what is your conclusion?
1) State the null and alternative hypothesis.
2) Find the value of the test statistic.
3) Find the p-value.
Answers
Answer:
A) i) Null hypothesis; p ≤ 0.79
Alternative hypothesis; p > 0.79
ii) test statistic = 2
iii) P-value = 0.02275
B) i) Null hypothesis; p ≤ 0.70
Alternative hypothesis; p > 0.70
ii) test statistic = 2.5
iii) P-value = 0.00621
Step-by-step explanation:
A) We are given;
Population proportion; p = 79% = 0.79
308 of the 370 respondents use social media in their job search. Thus;
Sample proportion; p^ = 308/370 = 0.8324
Let's state the hypotheses;
Null hypothesis; p ≤ 0.79
Alternative hypothesis; p > 0.79
Formula for the test statistic is;
z = (p^ - p)/√(p(1 - p)/n)
z = (0.8324 - 0.79)/√(0.79(1 - 0.79)/370)
z = 0.0424/0.021175
z = 2
From online p-value from z-score calculator attached and using; z = 2; significance value = 0.05; and one tailed distribution, we have;
P-value = 0.02275
B) similar to answer A above, Population proportion; p = 70% = 0.70
But 281 of the 370 respondents use social media in their job search. Thus;
Null hypothesis; p ≤ 0.70
Alternative hypothesis; p > 0.70
Also; Sample proportion; p^ = 281/370 = 0.7595
Formula for the test statistic is;
z = (p^ - p)/√(p(1 - p)/n)
z = (0.7595 - 0.70)/√(0.70(1 - 0.70)/370)
z = 0.0595/0.023824
z = 2.5
From online p-value from z-score calculator attached and using; z = 2.5; significance value = 0.05; and one tailed distribution, we have;
P-value = 0.00621
Please can someone help me with this
Answers
10x + 30
10(x+3)
10 x X = 10x
10 x 3 = 30
10x + 30
answer quick pls today
Answers
Answer:
60%
Step-by-step explanation:
Answer:
90%
Step-by-step explanation:
Suppose corn chips cost 32.5 cents per ounce. What would a bag of chips cost if it contained 19 oz? Round your answer to the nearest cent, if
necessary
Answers
Answer:
$6.18 :)
Step-by-step explanation:
617.5 cents would a bag of chips cost if it contained [tex]19[/tex] oz.
What is unitary method?Unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.
According to question,
Corn chips costs = [tex]32.5[/tex] cents per ounce.
A bag of chips of [tex]19[/tex] oz costs = 32.5 * 19
= 617.5 cents
Hence, 617.5 cents would a bag of chips cost if it contained [tex]19[/tex] oz.
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Pls help!!!
Factor each expression using the GCF. Check your work using the Distributive Property.
9. 3x + 12
10. 6x - 30
11. 20x - 16
12.-50x + 80
13. 77 + 22x
14. 21x - 14
Answers
it is not 8 oz plz help............
Answers
Answer:
12
Step-by-step explanation:
Team B has won 10 games in total how many games have the three teams won?
Answers
Answer:
If team B has won 10 games how many games were there in total u have to give the whole question only part of it...
Step-by-step explanation:
1 The number of guests, g, coming for dinner is not 8
2 the distance of the race d is at least 6 miles
what is the inequality for each of the solutions
Answers
Answer:
1. g < 8
2. d ≤ 6
Write the following series in sigma notation.
9+13+17+21+25+29+33
Answers
Answer:
147
Step-by-step explanation:
I WILL GIVE BRAINLIEST PLS HELP!!!!
The hypotenuse of ANY right triangle is [tex]\sqrt{2}[/tex] times the leg.
TRUE OR FALSE AND ALSO EXPLAIN
Answers
The points (10, -8) and (9, g) fall on a line with a slope of -6. What is the value of g?
Answers
Answer:
-2
Step-by-step explanation:
if you add 6 to -8 you get -2. also if you go on desmos and do the slope, you get -2
dose 1/2 divided by 2 equil 4
Answers
Answer:
1/2 divided by 2 equals to 0.25 (25/100).
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Students at a certain high school can choose from three different classes.9/10 of the students choose Spanish,37% choose French and 9/50 choose Chinese.
A.order the languages from the most number of students take to the one the least number students take. Justify your answer.
Answers
Answer:
1 Spanish 90%
2.French 37%
3. Chinese 18%
Step-by-step explanation:
9/10 .......... 90/100 ........... 90%
37%.................. 37%
9/50............. 18/100 .......... 18%
Find the area of the triangle
Answers
Answer:
50.4
Step-by-step explanation:
Sorry if this is wrong. I don't know the height.
solve the equation.
log 8 + log x = 1
Answers
Answer:
[tex]x = \frac{5}{4}=1\frac{1}{4}=1.25[/tex]
Step-by-step explanation:
Hope this helps.
Four fundamental factors affect the cost of money: (1) the return that borrowers expect to earn on their investments, (2) the preference of savers to spend their income in the current period rather than delay their consumption until some future period, (3) the risks associated with the investment, and (4) expected inflation. Consider the following statements that address these factors, and indicate which you think are true.
Statement 1: All things being equal, savers and investors expect to receive some amount of maturity premium as compensation for their deferred consumption.
Statement 2: Historical inflation rates, as opposed to expected future rates of inflation, should be used when calculating an investment’s nominal risk-free rate of return.
Statement 3: An investment that can provide a 10% return should attract more investment capital than an otherwise identical investment that can only provide a 6% return.
Statement 4: The inflation premium used to calculate the nominal interest rate on a five-year security should be equal to the rate of inflation expected in year 5 of the investment.
The true statements are:_______.
a. 1, 2, 3, and 4
b. 2 and 4
c. 1, 2, and 3
d. 1 and 3
Answers
Answer:
The true statements are 1 and 3
Step-by-step explanation:
Statement 1 -
All things being equal ,the savers and investors expect to receive some amount of maturity premium as compensation for their deferred consumption.
Statement 3 -
An investment that can provide a 10% return should attract more investment capital than an otherwise identical investment that can only provide a 6% return.
It is true because the return is higher than the return of identical investment therefore the higher returns will attract more investment.
Statement 2-
It is a false statement.
Historical inflation rates should not be used when calculating an investment’s nominal risk-free rate of return
But the real risk free rate and inflation premium is the part of prevailing interest rates that results from lenders compensating for expected inflation should be used
Statement 4-
It is a false statement.
The inflation premium used to calculate the nominal interest rate on a five-year security should not be equal to the rate of inflation expected in year 5 of the investment.
∴ we get
Statement 1 and 3 are true.
Marcus lives on a street where all the
house numbers are multiples of 9.
If the first number on the street is 9,
what are the next 3 possible house
numbers? Explain.
Answers
Answer:
18 27 36 you just have to do your count byes for 9
Second House: 18
Third House: 27
Fourth House: 36
Those would be the numbers because they are multiples of 9.
Emily pays $24 to rent a boat at the lake for up to 6 hours. She constructs the inequality and number line below to represent the number of hours, x, she can use the boat.
Answers
Answer:
Emily's inequality x < 6 is correct because the number of hours is less than or equal to.
Emily's number line is incorrect The endpoint is filled in and the number line is greater than the endpoint.
Step-by-step explanation:
Emily's Model:
x < 6
<----|----|----|----|----|----⊕----|----|----|----|----|----|----|----|---->
1 2 3 4 5 6 7 8 9 10 11 12 13 14
What Emily's model should look like to make the number line true:
x < 6
<----|----|----|----|----|----О----|----|----|----|----|----|----|----|---->
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Which of these is part of the solution for x > -5?
A
-15
B
-6
C
-5
D
5
Answers
Answer:
d
Step-by-step explanation:
because its reverse for negative the lower the better or in this case 5 because its on the other side of 0
Answer:
D. 5
Step-by-step explanation:
Jenny sold 3 pitchers of lemonade on Saturday morning. That afternoon, she sold 1/3 as much as she did in that morning. How many pitchers of lemonade did Jenny sell on Saturday afternoon?
Answers
Answer:
She sold 1 pitcher.
Step-by-step explanation:
1/3 of 3 is one
For a better look just zoom zoom
Answers
Answer: im late to this answer
Step-by-step explanation:
1.a)1,5
2.b)2,6
3.c)3,8
4.d)4,10
5.e)5,13
All the plotted points are on top.
A circus show started at 6:15 p.m and ended at 9:30 p.m. What was the duration of the show?
Answers
5 cm
12 cm
What is the area
of this rectangle?
And why
Answers
Answer:
60cm^2
Step-by-step explanation:
5X12=60
25x + 10y = 600
5x - 3y = 70
Answers
How do you divide fractions?
Answers
Answer:
The easiest way to divide fractions is to follow three simple steps:
1. Flip the divisor into a reciprocal.
2. Change the division sign into a multiplication sign and multiply.
3. Simplify if possible.
What is the equation of the line that passes through the point (-6,1) and has a
slope of -3/2
Answers
y-1=-3/2(x+6)
y-1=-3/2x-9
y=-3/2x-8
PLEASE HELP! PLEASE ALSO GIVE A GOOD EXPLANATION AND SHOW WORK! 45 points!!
Dalia is painting her room. After painting 1/10 of her room, Dalia has used 1/2 of a can of paint.
Select ALL of the true statements.
1. Painting 1/2 of Dalia's room requires 10 cans of paint.
2. Each can of paint will cover 1/20 of Dalia's room.
3. 3 cans of paint will cover 60% of Dalia's room.
4. Dalia's entire room requires 20 cans of paint.
5. Dalia's entire room requires 5 cans of paint.
Answers
Hence statement 3 and 5 are true from the equation given in question.
What is equation?The definition of an equation in algebra is a mathematical statement that proves two mathematical expressions are equal.
Types of Equations:
Linear Equation: More than one variable may be present in a linear equation. An equation is said to be linear if the maximum power of the variable is consistently 1.
Quadratic Equation: This equation is of second order. At least one of the variables in a quadratic equation needs to be raised to exponent 2.
Cubic Equation: A third-order equation is this one. At least one of the variables in cubic equations needs to be raised to exponent 3.
Rational Equation: A fractional equation having a variable in the numerator, denominator, or both is referred to as a rational equation.
Number of cans used 1/10 part of room = 1/2
No. of cans paints used 1 part = 1/2 / 1/10 = 5
∵ 1/2 can paint is used = 1/10
∴ 1 can paint used = (1/10)*2 = 1/5
∴ 5 cans = 100%
3 cans used = (3/5)*100 = 60%
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Each water bottle occupies 30 cubic inches. How may water bottles are in the box?
Answers
Answer:
well that depends on how big the box is.
Answer:
PETE water bottle 50 oz. (over 1.5 liters) 0.12 U.S. EPA PETE, 2 liter 1 bottle 0.13 U.S. EPA PET soda bottles, whole, loose 1 cubic yard 35 MN STATE PET soda bottles, whole, loose 1 gaylord 45 MN STATE PET soda bottles, whole, baled 30" x 48" x 60" 600 MN STATE PET soda bottles, whole, granulated 1 gaylord 725 MN STATE
Step-by-step explanation: