Answers
One would expect the foreword of a book to be found:
C. At the beginning of the book
What is the foreword in a book?The foreword in a book refers to the introductory part of the book that is written by an expert on the subject discussed by the book. The foreword of a book is located at the beginning part of the book and it provides reasons that readers should consider reading the book.
The foreword is not meant to dissuade the readers but to encourage them on the importance and content of the book. It is logical then to expect this feature of books to be located at the beginning of the book.
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Related Questions
I need help in this one! Thank you!
Answers
Answer:
Grey dice. White dice
1 1. 52 2. 65 3. 16 4. 2Step-by-step explanation:
Flip them around, this one really got me lol
which expressions are equivalent to 7^-2 times 7^6?
Answers
The expressions presented in options A and D are equivalent to the given expression.
Power Rules
Knowing some of the main power rules.
Multiplication with the same base: you should repeat the base and add the exponents.Division with the same base: you should repeat the base and subtract the exponents.Power. For this rule, you should repeat the base and multiply the exponents.Exponent negative - For this rule, you should write the reciprocal number with the exponent positive.Zero Exponent. When you have an exponent equal to zero, the result must be 1.An algebraic expression is considered equivalent when they are equal.
Thus, for solving this question, you should:
identify which power rules you will applysolve each expression of the questioncheck with the results is equal to the given expression: [tex]7^{-2}*7^6=7^4[/tex]Let's solve each option.
Option A[tex]\frac{7^2}{7^{-2}}[/tex]= 7² *7²= [tex]7^4[/tex] - this equation is equivalent to the given algebraic expression.
Option B[tex]\frac{7^6}{7^{-2}}=7^6*7^2=7^8[/tex] - this equation is not equivalent to the given algebraic expression.
Option C[tex]7^{-12}=\frac{1}{7^{12}}[/tex] - this equation is not equivalent to the given algebraic expression.
Option D(7²)2= [tex]7^4[/tex] - this equation is equivalent to the given algebraic expression.
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A huge fish tank has a leak. 19.414 gallons of water has leaked out. Only 91,468 gallons of water remains in the tank. How many gallons of water was in the tank before the leak?
Answers
Answer:
there were 91,487.414 gallons of water in the tank before the leak.
Step-by-step explanation:
To find out the number of gallons of water that was in the tank before the leak, you can use the following equation:
Number of gallons before the leak = Number of gallons after the leak + Number of gallons leaked
Plugging in the values given in the problem, we get:
Number of gallons before the leak = 91,468 gallons + 19.414 gallons
Solving this equation gives us:
Number of gallons before the leak = 91,487.414 gallons
So there were 91,487.414 gallons of water in the tank before the leak.
the air temperature is 70 degrees, and the relative humidity is 90%. which conclusion can be made?(1 point)
Answers
The conclusion that can be made from the given observations is that the dew factor temperature is 90% of the air temperature.
Humidity is the quantity of water vapor withinside the air. If there is lots of water vapor withinside the air, the humidity might be high.
The temperature have to upward push so as for air to come to be saturated with water vapor.
The air holds little water vapor and is rather dry.
The quantity of water vapor withinside the air is 90% of what the air can hold.
The dew factor temperature is 90% of the air temperature.
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Kareem cannot decide which of two washing machines to buy. The selling price of each is $385. The first is
marked down by 30%. The second is marked down by 20% with an additional 10% off. Find the sale price of each
washing machine. Use pencil and paper. Explain why Kareem should buy the first washing machine rather than the
second if the machines are the same except for the selling price.
Answers
Answer:
$385 discounted by 30% the final price would be $269.50
$385 discounted by 20% the final price would be $308.00
$385 discounted by 10% the final price would be $346.50
Step-by-step explanation:
Answer:
The first option is cheaper and hence Kareem should buy it.--------------------------------------
The selling price is $385.
Option 130% off ⇒ $385×(1 - 0.3) = $385×0.7 = $269.5Option 220% off ⇒ $385×(1 - 0.2) = $385×0.8 = $30810% off ⇒ $308×(1 - 0.1) = $308×0.9 = $277.2As we see the first option is cheaper:
$269.5 < $277.2About how much longer is QT than RS? Use an approximation rounded to the nearest tenths place
Answers
Answer:
Step-by-step explanation:
the zip codes of a sample of 345 customers at pet shop are an example of qualitative variables. True or False
Answers
False, the zip codes of a sample of 345 customers at pet shop are not an example of qualitative variables
The zip codes of a sample of 345 customers at a pet shop are an example of quantitative variables because they are numerical values that can be measured and compared. Qualitative variables, on the other hand, are categorical variables that describe a characteristic or attribute of a person, place, or thing, such as gender, color, or nationality. They cannot be measured numerically and are often described using words or labels.
Qualitative Variables: Qualitative variables are variables that are not numerical or quantifiable. Examples of qualitative variables include gender, race, eye color, ethnicity, nationality, marital status, and religious preference.
Quantitative Variables: Quantitative variables are variables that are numerical or quantifiable. Examples of quantitative variables include height, weight, age, income, income level, GPA, number of children, and number of hours worked.
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Add.
(3x²-2x) + (4x - 3)
A. 3x² + 2x - 3
B. 3x² - 6x +3
C. 12x³-14x² + 6x
D. 7x² - 5x
Answers
25. The value of y is directly proportional to x. Y =
54, when x = 9. What is the value of y when x
= 3.5?
Answers
Answer:
y = 21
Step-by-step explanation:
You need to find k
y = x
54 = 9k Divide both sides by 9
6 =k
y = 6(3.5)
y = 21
i really need help plsss help me
Answers
The linear equation that represents the total cost of the gas will be y = 15.7x.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
The cost of two gallons of gas is $31.40. Then the rate (slope) is given as,
m = $31.40 / 2
m = $15.7 for each gallon
Let 'x' be the number of gallons of gas and 'y' be the total cost. Then the equation is given as,
y = 15.7x
The linear equation that represents the total cost of the gas will be y = 15.7x.
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Ashley is going to invest in an account paying an interest rate of 5.6% compounded continuously. How much would Ashley need to invest, to the nearest dollar, for the value of the account to reach $2,080 in 16 years?
Answers
Rounding to the nearest dollar, Ashley would need to invest $1,062 to reach $2,080 in 16 years at an interest rate of 5.6% compounded continuously.
How can you figure out compound interest in mathematics?Compound interest (CI) is calculated as CI = P(1 + r/100)n - P. To calculate the compound interest value, first compute the amount and then deduct the principal from it.
To find the amount Ashley needs to invest, we can use the formula for continuously compounded interest:
A = P * e^(rt)
where A is the final amount, P is the principal (the initial investment), r is the interest rate, and t is the time in years.
We know that A = $2,080 and r = 5.6% = 0.056, and we want to solve for P. We can rearrange the formula to solve for P:
P = A / e^(rt)
Plugging in the values, we get:
P = $2,080 / e^(0.056 * 16)
The value of e^(0.056 * 16) can be calculated using a calculator or computer, and it is approximately 1.96. Plugging this in, we get:
P = $2,080 / 1.96 = $1062.24
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calculate the double integral. 6x 1 + xy da, r = [0, 6] × [0, 1] r
Answers
The value after double integration is 45.73
We can evaluate rectangle integrals in any order we like in Cartesian coordinates. We treat the other integral as a constant regardless of which integral we assess first; this is something to keep in mind while choosing the order of integration.
We want that x to be constant; we can easily integrate with respect to y. So we will evaluate y first. We get:
[tex]\int\limits^ \int\limits^ \frac{6x}{1+xy} dA=6\int\limits^6_0 \int\limits^1_0 {\frac{x}{1+xy} } \, dydx[/tex]
[tex]or, 6\int\limits^6_0 {[In(1+xy)}_{0} ^{1} ]} \, dx[/tex]
[tex]or, 6\int\limits^6_0 {In(1+x)} } \, -In 1dx[/tex]
[tex]or, 6\int\limits^6_0 {In(1+x)} } \, dx[/tex]
[tex]or,[(1+x)In(1+x)-(1-x)]^{6} _{0}[/tex]
[tex]or,[7In7-In1-7+1]\\or,6(7In7-6)\\or,45.73[/tex]
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Factor each of the following. Find your answer below and notice the letter next to it. Write this letter in each box containing the number of that exercise. 1. X2 + 13x 12 2. X2 + 7x + 12 3. X2 + 7x + 6 4. X2+5x+6 5. X2+8x+15 6. X2+8x+12 7. X2-3x-28 8. X2-8x-33 9. X2-2x-15 10. X2+8x-33 11. X2+2x-15 12. X2-8x+15 answer: a. (x+2)(x+3) E. (x+1)(x+6) D. (x+4)(x+5) U. (x+4)(x+3) C. (x+2)(x+6) R. (x+1)(x+15) S. (x+1)(x+12) N. (x+3)(x+5) I. (x-3)(x+5) W. (x-5)(x+3) T. (x-3)(x-5) F. (x+7)(x-4) K. (x+4)(x-7) H. (x-7)(x-4) L. (x-11)(x+3) B. (x-3)(x+11)
Answers
this letter in each box that contains the exercise's number. Factoring polynomials can be a tricky process, but it can be done with practice and a few key steps.
The first step is to identify if the polynomial is a prime or a composite. A prime polynomial cannot be factored, while a composite polynomial can be factored into two linear factors. Then, look for two numbers that can be multiplied together to give the constant term, and two numbers that add together to give the coefficient of the x-term. Once you have identified these numbers, factor out the greatest common factor and then separate the remaining terms into two binomials. Finally, use the distributive property to factor the binomials and simplify. The answers are: A. (x+2)(x+3) E. (x+1)(x+6) D. (x+4)(x+5) U. (x+4)(x+3) C. (x+2)(x+6) R. (x+1)(x+15) S. (x+1)(x+12) N. (x+3)(x+5) I. (x-3)(x+5) W. (x-5)(x+3) T. (x-3)(x-5) F. (x+7)(x-4) K. (x+4)(x-7) H. (x-7)(x-4) L. (x-11)(x+3) B. (x-3)(x+11)
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which model can be used to find 4/5 divided by 1/10
Answers
Answer:
8
Step-by-step explanation:
(4/5)/(1/10)
To solve, flip the second fraction, and instead of dividing, multiply:
(4/5)/(1/10) = (4/5) * (10/1)
Multiply straight across:
(4/5) * (10/1) = (4 * 10)/(5 * 1) = 40/5
SImplify. Divide:
40/5 = 8
8 is your answer.
Hope it helps
Katy invests £200000 in a savingsaccount for 4 years. The account pays compund interest at a rate of 1.5% per annum calculate the total amount of interest katy will get at the end of 4 years
Answers
Answer:
£12000
Step-by-step explanation:
1 year = 1.5%
4 years = 6%
6% = 0.06
200000 times 0.06 = £12000
So, Katy will get £12000 interest rate at the end of 4 years.
If you can, please give me a Brainliest; thank you, and have a good day!
Answer:
£3,137
Step-by-step explanation:
First year: £200000 x 1.5% = £3,000
Second year: £203,000 x 1.5% = £3,045
Third year: £206,045 (because of 203,000+3,045) x 1.5% = £3,090.675
Last year: £209,135.675 x 1.5% = approximately £3,137
Given g(x) = -2x + 1, solve for a when g(x) = 5.
Answers
g(5)= -10+1
g(5)= -9
= -9
In Diagram 2. find the value of x 119
Answers
The value of angle x that extends from the given polygon is 61°.
How to find the value of x?
If a line is divided into two angles, we can always find the other angle if we know the first, many angles on one side of a straight line can be handled with this method.Angles in a straight line are the total of all the angles that can be arranged in a straight line.Standing with your back to the North and turning to face East equals a 90° clockwise turn. If you turn 90 degrees more clockwise, you'll find yourself looking south. If you were to make two more turns like this, you would first face West and then North (the full turn). Therefore, a half turn is two lots of 90 degrees, or 180 degrees.A straight line's angles add up to 180 degrees.The angle of straight line will be 180°
119° + x = 180°
x = 180° - 119°
x = 61°
Hence, the value of x that extends from the given polygon is 61°.
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x-2y<-6 what does y equal?
Answers
Answer:
[tex]y > 3+\frac{x}{2}[/tex]
Hope this helps!
Answer: x<2y-6
Step-by-step explanation:
x-2y<-6
=(x-2y)+6<-6+6
=x-2y+6<0
=(x-2y+6)+(2y-6)<2y-6
=x-2y+6+2y-6<2y-6
=x-2y+2y+6-6<2y-6
=x<2y-6
2. in a random sample of 1200 persons aged 65 and over, the proportion with osteoarthritis was found to be 0.115 (or 11.5%) (a) what is the standard error for the estimate of the proportion of all person aged 65 and over with osteoarthritis?
Answers
The standard error for the estimate of the proportion of all persons aged 65 and over with osteoarthritis is 0.0092.
The subset chosen from the larger set to make assumptions is known as a random sample. Standard Error can be defined as the term that measures the accuracy of the sample distribution which represents the population.
We know that,
Standard Error = √ ( P ( 1 - P ) / n ) → 1
As per the given question,
n = 1200P = 0.115Substitute the values in 1,
Standard Error ( SE ) = √ ( P ( 1 - P ) / n )
= √ ( 0.115 ( 1 - 0.115 ) / 1200 )
= √ ( 0.115 ( 0.885 ) / 1200 )
= √ ( 0.101775 / 1200 )
= √ ( 0.0000848125)
Standard Error ( SE ) = 0.0092093702 ≅ 0.0092
Therefore, 0.0092 is the standard error for the estimate of the proportion of all persons aged 65 and over with osteoarthritis.
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send help im abt to expire
i don't understand what this is-
Answers
Answer:
y < -1x + 2
y [tex]\geq \\[/tex] 2x + 4
Step-by-step explanation:
The steps taken to find the two inequalities are on the GraphInequalities worksheet. The derived equations are graphed on DESMOS and attached, for comparison.
The basic steps are to find the slopes of the two lines and to identify the y-intercepts from the graph. The inequalities can be assigned based on the darkened areas and presence of either a solid or dashed line. All are outlined in the worksheet.
Can square root of 34 be simplified?
Answers
Answer:
are you stupif? no dumas
Step-by-step explanation:
jim is considering pursuing an ms in business analytics degree. he has applied to two different universities. the acceptance rate for applicants with similar qualifications is 30% for university x and 45% for university y. what is the probability that jim will be accepted at both universities?
Answers
The probability of acceptance of Jim at both the University as per given acceptance rate is equal to 0.135.
As given in the question,
Acceptance rate of Jim application at University x is equal to 30%
Acceptance rate of Jim application at University y is equal to 45%
Probability of acceptance of application in University x is:
P(x) = 30 /100
= 0.30
Probability of acceptance of application in University y is:
P(y) = 45 /100
= 0.45
Probability of acceptance of application at both the University is:
P(x and y) = P(x) × P(y)
= 0.30 × 0.45
= 0.135
Therefore, the probability of acceptance application at both the University is equal to 0.135.
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i've asked 55 students on monday whether they did their homework over the weekend. 17 of them said they did. find a 67% confidence interval for the proportion of students who will tell me that they did their homework over the weekend.
Answers
We are 67% confident that the proportion of students who are tell me that they did their homework over the weekend.0.087 with a margin of error of 0.0175
Find the confidence interval ?In statistics, a confidence interval describes the likelihood that a population parameter would fall between a set of values for a given percentage of the time.
Confidence ranges that include 95% or 99% of anticipated observations are frequently used by analysts.
87/1000 = 0.087
We have a 67% confidence level that the percentage of left-handed students is 0.087, with a 0.0175 margin of error.
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13−0.75w+8x13, minus, 0, point, 75, w, plus, 8, x when w=12w=12w, equals, 12 and x=\dfrac12x=
2
1
x, equals, start fraction, 1, divided by, 2, end fraction.
Answers
The result after evaluating the expression is: 8
What is equations?
There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. Mathematical algebraic equations typically have one or more variables.
For this case we have the following expression:
13-0.75w + 8x
We must evaluate for the following values:
w = 12
x = 1/2
Substituting the values we have:
13- 0.75 * (12) + 8 * (1/2) = 8
The result after evaluating the expression is: 8
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please help this is a checkpoint and it's due January 4
Answers
Answer:
a) [tex]\frac{5}{6}[/tex]
b) 18
Step-by-step explanation:
The unit rate is [tex]\frac{5}{18}[/tex].
This means that in 1 hour, you will travel [tex]\frac{5}{18}[/tex] of a mile.
distance = rate x time
d = [tex]\frac{5}{18}[/tex] x 3
d = [tex]\frac{5}{18}[/tex] [tex](\frac{3}{1})[/tex]
d = [tex]\frac{15}{18}[/tex] Divide the numerator and denominator by 3 to simplify.
d = [tex]\frac{15}{18}[/tex] ÷ [tex]\frac{3}{3}[/tex] = [tex]\frac{5}{6}[/tex]
d = rate x time
5 = [tex]\frac{5}{18}[/tex]t Multiply both sides by [tex]\frac{18}{5}[/tex]
[tex]\frac{18}{5}[/tex] [tex](\frac{5}{1})[/tex] = [tex]\frac{18}{5}[/tex][tex](\frac{18}{5})[/tex]t
18 = t
(b) assume 90 companies were included in the sample. what is the test statistic? (round your answer to three decimal places.)
Answers
A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive office (CEO) was at least nine years.
a) The hypotheses that can be used to challenge the validity of the claim made by the shareholders' group.
H₀ : u ≤ 9
Hₐ : u > 9
So, the correct option is option (A).
b) T- statistic value is -2.571 for a sample of 90 companies.
c) The critical value for t i.e P-value is 0.0059
d) P-value < α = 0.01, implies reject the null hypothesis. We can conclude that the mean tenure of a CEO is significantly lower than 9 years. The claim of the shareholders group is not valid. So, the correct option is option(D).
We have given that,
x-bar= 7.27 , σ = 6.38, n = 90
a) Test that the mean tenure for a chief executive officer (CEO) was atleast nine years .
Null and alternative hypothesis is
H₀ : u <= 9
Hₐ : u > 9
b) test statistic:
t =( x-bar - μ ) /σ/√n
=> t = (7.27 - 9 )/6.38/90
=> t = - 1.73/0.67251
=> t = -2.571
c) P-value :
P-value = P( tₙ₋₁ < t) = P(t₉₀₋₁ < t )
=> P-value = P( t₈₉< - 2.571)
=>P-value = P( t₈₉ >2.571)
=> P-value = 1 - P( t₈₉< 2.571)
P-value = 1 - 0.9941 = 0.0059
d) Significance level, = 0.01
we see that p-value= 0.0059 < 0.01
Decision : Reject the null hypothesis H₀
We have no evidence to support the claim.
Hence, we calculate all the required result.
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Complete Question :
A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive office (CEO) was at least nine years. A survey of companies reported in The Wall Street Journal found a sample mean tenure of x = 7.27 yearsfor CEOs with a standard deviation of
s = 6.38 years.
(a)Formulate hypotheses that can be used to challenge the validity of the claim made by the shareholders' group. multiple choice:
i)H0: μ ≤ 9
Ha: μ > 9
ii)H0: μ ≥ 9
Ha: μ < 9
iii) H0: μ > 9
Ha: μ ≤ 9
iv)H0: μ < 9
Ha: μ ≥ 9
v) H0: μ = 9
Ha: μ ≠ 9
(b)Assume 90 companies were included in the sample. What is the test statistic? (Round your answer to three decimal places.)
c)What is the p-value for your hypothesis test? (Round your answer to four decimal places.)
p-value =
(d) At = 0.01,what is your conclusion? MULTIPLE CHOICE:
Do not reject H0. We cannot conclude that the mean tenure of a CEO is significantly lower than 9 years. The claim of the shareholders group is valid.Reject H0. We can conclude that the mean tenure of a CEO is significantly lower than 9 years. The claim of the shareholders group is not valid.
Assuming Ash Ave. and Maple are parallel then the length of Ash Ave is ? mi. Enter a number answer only to the nearest tenth
Answers
Answer:
11.25. or 11.3 miles
Step-by-step explanation:
Because Ash Ave. and Maple are parallel, this means that you have a pair of similar right triangles. Therefore, you can set up a proportion and solve for the length of Ash Ave.
6 miles/9 miles = 7.5 miles/x miles
x=11.25 miles
-(4x+20) < −7(x + 15/7)
Answers
Answer: x < 5/3
Step-by-step explanation:
-(4x + 20) < −7(x + 15/7) ............................ Question
-4x - 20 < -7(x + 15/7) ................................ Distribute
-4x - 20 < -7x - 15 ...................................... Distribute
-4x - 20 + 20 < -7x - 15 + 20 ................... Add 20 to both sides
-4x < -7x + 5 ............................................... Simplify
-4x + 7x < -7x + 5 + 7x ............................. Add 7x to both sides
3x < 5 .......................................................... Simplify
3x / 3 < 5 / 3 .............................................. Divide both sides by the same factor
x < 5/3 ......................................................... Simplify
SHOW WORK FOR BRAINLIST AND HEARTS!
Answers
The value of the function h(x) = -3(x - 1) + 4 when x is -5 is 19.
How to find the value of the function?It is important to note that a function is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario.
In this situation, the function is given a :
h(x) = -3(x - 1) + 4
When x = -5. This will be:
h(-5) = -3(-5 - 1) + 4
= -3(-6) + 1
= 18 + 1
= 19
The value is 19.
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An agent is paid a commission of 2% on the total sales in a year and a bonus of 0.5% on the excess of sales over Rs. 9,00,000. Find how much he receives as commission if the bonus amounts is Rs. 1500.
Ans:Rs.24000
Answers
commission + bonus = 0.02 * total sales + 0.005 * (total sales - 9,00,000)
Since the bonus is given for the sales above Rs. 9,00,000, we can substitute the value of the bonus into the equation above:
1500 = 0.005 * (total sales - 9,00,000)
Solving this equation for total sales, we find that the total sales is Rs. 24,00,000.
The commission on this amount of sales is 0.02 * 24,00,000 = Rs. 4,800.
Therefore, the agent receives a total of Rs. 4,800 + Rs. 1,500 = Rs. 6,300 as commission.
