Answer:
c. 1/4
Step-by-step explanation:
got right edge2021
The relative frequency for males in the age group 60-69 is 1/2. So, option A is the correct one.
Given that,
Total number of residents in the retirement home who are in the age group 60-69 = 10 + 10 = 20
Number of males who are in the age group 60-69 = 10
The formula to find the relative frequency is,
Relative frequency = Number of counts in the subgroup / Total counts
Substituting,
Relative frequency = 10/20 = 1/2
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The width of a rectangular room is 3 feet shorter than it is long. If the perimeter of the room is 42 feet, what is the width of the room? Show work
Answer:
Should be 9 feet.
Step-by-step explanation:
Well I just set up the equation 2x + 2(x-3) = 42 Then solved x and subtracted x by 9.
Answer:
9 feetStep-by-step explanation:
Let width be w and length be l
Then we have equations below:
w = l - 32(w + l) = 42Substitute l = w + 3 in the second equation and solve for w:
w + l = 21w + w + 3 = 212w = 21 - 32w = 18w = 18/2w = 9 feet4,509/10,000 as a decimal number.
Step-by-step explanation:
When dividing by 10,000, shift the decimal place 4 places to the left.
4509 => 0.4509
4,509/10,000 = 0.4509.
4,509/10,000 as a decimal number is 0.4509.
What are decimal numbers?Decimals are used to write a number that is not whole.
Given a fraction, 4,509/10,000
Dividing by 10,000, shift the decimal place 4 places to the left.
Therefore, 4,509/10,000 = 0.4509.
Hence, 4,509/10,000 as a decimal number is 0.4509.
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3. (04.04 MC)
Part A: A graph passes through the points (0, 2), (1, 3), and (2, 4). Does this graph represent a linear function or a non-linear function? Explain your answer in words
Part B: Write one example of a linear function and one example of a non-linear function.. (Use x and y as the variables) (10 points)
Answer:
Part A:
The graph passes through (0,2) (1,3) (2,4).
If the graph that passes through these points represents a linear function, then the slope must be the same for any two given points. Using (0,2) and (1,3). Write in slope-intercept form, y=mx+b. y=x+2
Using (0,2) and (2,4). Write in slope-intercept form, y=mx+b. y=x+2. They are the same and in graph form, it gives us a straight line.
Since the slope is constant (the same) everywhere, the function is linear.
Part B:
A linear function is of the form y=mx+b where m is the slope and b is the y-intercept.
An example is y=2x-3
A linear function can also be of the form ax+by=c where a, b and c are constants. An example is 2x + 4y= 3
A non-linear function contains at least one of the following,
*Product of x and y
*Trigonometric function
*Exponential functions
*Logarithmic functions
*A degree which is not equal to 1 or 0.
An example is...xy= 1 or y= sqrt. x
An example of a linear function is 1/3x = y - 3
An example of a non-linear function is y= 2/3x
f ( x ) = - x^3 + 3x^2 + 4x - 5
answear ?
Answer:
There are no like terms.
Step-by-step explanation:
The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 2135 miles, with a variance of 145,924. If he is correct, what is the probability that the mean of a sample of 40 cars would differ from the population mean by less than 29 miles
Answer:
0.36878
Step-by-step explanation:
Given that:
Mean number of miles (m) = 2135 miles
Variance = 145924
Sample size (n) = 40
Standard deviation (s) = √variance = √145924 = 382
probability that the mean of a sample of 40 cars would differ from the population mean by less than 29 miles
P( 2135 - 29 < z < 2135 + 29)
Z = (x - m) / s /√n
Z = [(2106 - 2135) / 382 / √40] < z < [(2164 - 2135) / 382 / √40]
Z = (- 29 / 60.399503) < z < (29 / 60.399503)
Z = - 0.4801364 < z < 0.4801364
P(Z < - 0.48) = 0.31561
P(Z < - 0.48) = 0.68439
P(- 0.480 < z < 0.480) = 0.68439 - 0.31561 = 0.36878
= 0.36878
Answer: 0.3688
Step-by-step explanation:
If you are rounding to the nearest 4 decimal places the correct answer is 0.3688
helpppppppppppppppppp
Answer:
0
Step-by-step explanation:
(2m)/(2m+3)-(2m)/(2m-3)=1
Simplifying the left hand first
(2m)/(2m+3)-(2m)/(2m-3) = {2m(2m-3) - 2m(2m+3)}/(4m²-9)
(4m²-6m-4m²-6m)/(4m²-9) = (-12m) / (4m²-9)
Now this equates to 1
(-12m) / (4m²-9) = 1
-12m = 4m²-9
4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.
4m²+ 12m -9 =0
m² + 3m + (3/2)²= 9/4 + 9/4
(m + 3/2)² = 18/4
m = √18/2 - 3/2 or m = -√18/2 - 3/ = 0.621 = -3.621
So we can say that the equation has NO extraneous solutions.
Answer = 0
(I'm pretty sure it's correct)
Solve and check: x + 10 + 4x + 90 = 180
Answer:
40
Step-by-step explanation:
⚠️PLEASE HELP!!⚠️
find the measures of the angles labeled in the figure below.
measure angle EFD
measure angle EHF
measure angle HFG
measure angle G
Answer:
Angle EFG= 90
Angle EHF= 130
Angle HFG=56
Angle G =74
Answer:
angle EFD = 90
angle HFG=56
angle EHF= 29
angle G=73
Step-by-step explanation:
angle EHF=180-51=29
In triangle FGH :
angle FHG = 51 (given)
angle HFG= 90-34= 56( angle EFG given 90)
angle HGF= 180-(51+56) (anglesome prop)
angle G=180-107=73
If y =- 5x + 3, find the value of x when y = 13.
Answer:
x=2
Step-by-step explanation:
You would first subsitute the y with 13. The you would subtract 3 from 3 and 13. Then you would have 10=5x. Then you would divide 5 by 5 and 10. You will get x = 2
:)
The locations of three fish relative to the water’s surface are –13 feet, –33 feet, and 22 feet. Which depth has the least absolute value?
Answer:
i think its -33 feet
Step-by-step explanation:
Solve for the value of m.
38°
(8m+4)°
Answer:
m = 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Equality PropertiesCombining Like TermsGeometry
Complementary Angles - Angles that add up to 90°Step-by-step explanation:
Step 1: Set Up Equation
The 2 angles must add up to 90°.
(8m + 4)° + 38° = 90°
Step 2: Solve for m
Combine like terms: 8m + 42 = 90Isolate m term: 8m = 48Isolate m: m = 6convert 1.97 kJ to calories
Answer:
0.4708413 is the answer
How many 2 and 2/3 yard pieces of rope can be cut from a bundle that has 21 yards of rope
Answer:
21 divided by 2 and 2/3 = 11.1666667
Step-by-step explanation:
Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are broadly defined according to four main preferences. Do married couples choose similar or different personality types in their mates? The following data give an indication.
Similarities and Differences in a Random Sample of 375 Married Couples
Number of Similar Preferences Number of Married Couples
All four 30
Three 128
Two 124
One 61
None 32
Suppose that a married couple is selected at random.
(a) Use the data to estimate the probability that they will have 0, 1, 2, 3, or 4 personality preferences in common. (Enter your answers to 2 decimal places.)
0 1 2 3 4
1 2 3 4 5
(b) Do the probabilities add up to 1? Why should they?
i. Yes, because they do not cover the entire sample space.
ii. No, because they do not cover the entire sample space.
iii. Yes, because they cover the entire sample space.
iv. No, because they cover the entire sample space.
(c) What is the sample space in this problem?
i. 0, 1, 2, 3 personality preferences in common
ii. 1, 2, 3, 4 personality preferences in common
iii. 0, 1, 2, 3, 4, 5 personality preferences in common
iv. 0, 1, 2, 3, 4 personality preferences in common
Answer:
a. Probability (0) = 36/375 = 0.096
Probability (1) = 61/375 = 0.162
Probability (2) = 124/375 = 0.330
Probability (3) = 128/375 = 0.341
Probability (4) = 30/375 = 0.08
b. iii) Yes, because they cover the entire sample space.
c. Obviously, the sample space in this problem is iv.
iv = {0,1,2,3,4} personality preferences in common.
Step-by-step explanation:
In this question, we are asked to calculated the probability of preferences in common.
As we know, the general formula for probability is:
Probability = Number of favorable outcome/ Total number of favorable outcomes
Data Given:
For 0 = 36
For 1 = 61
For 2 = 124
For 3 = 128
For 4 = 128
Total = 375 Married Couples
Probability (0) = Number of favorable outcomes/ Total Number of Favorable outcomes
Probability (0) = 36/375 = 0.096
Similarly,
Probability (1) = 61/375 = 0.162
Similarly,
Probability (2) = 124/375 = 0.330
Similarly,
Probability (3) = 128/375 = 0.341
Similarly,
Probability (4) = 30/375 = 0.08
b. Total Probability can never be greater than 1 and less than 0.
So, Probabilities of the sample will add up to 1
iii) Yes, because they cover the entire sample space.
Total Probability = P(0) + P(1) + P(2) + P(3) + P(4) = 1
Total Probability = 0.09 + 0.16 + 0.33 + 0.34 + 0.08 = 1
c. Obviously, the sample space in this problem is iv.
iv = {0,1,2,3,4} personality preferences in common.
2 x 10 + 4 x 1 + (7 x 1/10) + (4 x 1/100) + (5 x 1/1000) in standard form
Answer:
4949/200=
Step-by-step explanation:
(SAT Prep) Find the value of x
X=25°
................
expand and simplify 2(5x+4)+3(2x+1)
pls help me
Step-by-step explanation:
2(5x + 4) + 3(2x + 1)
= 10x + 8 + 6x + 3
= 16x + 11.
Rotate 90 clockwise wxyz
Answer:
Rotate 90 clockwise wxyz
Step-by-step explanation:
Order the following integers from least to greatest:
-25, -41, 36, –38, 28 and 16
Answer:
-41, -38, -25, 16, 28, 36
Step-by-step explanation:
Compute the multifactor productivity measure for each of the weeks shown for production of chocolate bars. What do the productivity figures suggest? Assume 40-hour weeks and an hourly wage of $12. Overhead is 1.5 times weekly labor cost. Material cost is $6 per pound.Week Output (units) Workers Material (lbs)1 30,000 6 4502 33,600 7 4703 32,200 7 4604 35,400 8 480
Answer:
Week 1 =3.03
Week 2 =2.99
Week 3=2.9
Week 4=2.83
Step-by-step explanation:
Computation for the multifactor productivity measure for each of the weeks shown for production of chocolate bars.
Using this formula
Week Multifactor productivity measure = (Output / Total Cost)
Where:
Output represent Quantity produced
Total cost represent Labor cost + Material cost + Overhead
Let plug in the formula
Week 1= 30,000/(40*12*6)+[(40*12*6)1.5]+(450*6)
Week 1 =30,000/(2,880)+(2,880*1.5)+2,700
Week 1 =30,000/(2,880+4,320+2,700)
Week 1=30,000/9,900
Week 1 =3.03
Week 2= 33,600/(40*12*7)+[(40*12*7)1.5]+(470*6)
Week 2 =33,600/(3,360)+(3,360*1.5)+2,820
Week 2=33,600/(3,360+5,040+2,820)
Week 2=33,600/11,220
Week 2 =2.99
Week 3= 32,200/(40*12*7)+[(40*12*7)1.5]+(460*6)
Week 3 =32,200/(3,360)+(3,360*1.5)+2,760
Week 3=32,200/(3,360+5,040+2,760)
Week 3=32,200/11,160
Week 3=2.9
Week 4= 35,400/(40*12*8)+[(40*12*8)1.5]+(480*6)
Week 4 =35,400/(3,840)+(3,840*1.5)+2,880
Week 4=35,400/(3,840+5,760+2,880)
Week 4=35,400/12,480
Week 4=2.83
Therefore the multifactor productivity measure for each of the weeks shown for production of chocolate bars is :
Week 1 =3.03
Week 2 =2.99
Week 3=2.9
Week 4=2.83
help meee if answer correctly I will follow you and make you brilliant
Answer:
a = 2; b = -1; and c = 3
Step-by-step explanation:
Please see attached image for the step by step answer
Chuck has a gross pay of $815.70. By how much will Chuck’s gross pay be reduced if he has the following items withheld? federal tax of $56 Social Security tax that is 6.2% of his gross pay Medicare tax that is 1.45% of his gross pay state tax that is 19% of his federal tax a. $73.04 b. $129.04 c. $235.51 d. $273.38 Please select the best answer from the choices provided A B C D
Answer:
B $129.04
Step-by-step explanation:
Just took the exam on edgu
Answer:
B
Step-by-step explanation:
SOMEONE PLEASE HELP
help
Answer:
K1. 25 K2. 25 K3. 22.5 K4. 22
Step-by-step explanation:
im kinda confused what its asking
can someone please help me with this question?
Answer:
1/2
Step-by-step explanation:
you are going from 20 to 10, meaning you have to multiply by a 1/2. This means that the scale factor is 1/2! Brainly pls!
Kevin works at a restaurant. He stacks glasses as shown below. Let x be the number of glasses and f(x) be the height of the stack. If 5.5-inch glasses with 1.2-inch lips are stacked vertically, which table correctly models this situation?
Answer:
[tex]f(x) = 5.5x + 1.2 \\ \: is \: the \: required \: situation.[/tex]
As per the given condition f(x) = 5.5x +1.2 inch will be the required model.
What is function?" A function is a mathematical expression to represent the relation between one or more variable."
According to the question,
x represents the number of glasses
f(x) represents the height of the stack
height of the glass = 5.5inch
stack vertically with height = 1.2 inch
Therefore,
Required model
f(x) = 5.5x +1.2
Hence, f(x) = 5.5x +1.2 inch will be the required model.
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Are 4x, 4y, and 4xy like terms?
In algebra, like terms are terms that have the same combination of variables raised to the same powers. Let's determine whether 4x, 4y, and 4xy are like terms.
The term 4x consists of the variable x raised to the power of 1, while the term 4y contains the variable y raised to the power of 1. Thus, both 4x and 4y have the same combination of variables raised to the same power. Therefore, they can be considered like terms. On the other hand, the term 4xy consists of both the variables x and y, each raised to the power of 1.
Although it includes both x and y, the arrangement of the variables is different from the previous terms. This means that 4xy is not a like term to either 4x or 4y. In conclusion, among the given terms, 4x and 4y are like terms, while 4xy is not. It is important to identify like terms in algebra to simplify expressions and combine similar terms for easier calculations.
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translate the sentence into an equation
Eight times the sum of a number and 6 is 9.
use the variable w for the unknown number
Answer:
8(w+6)=9
You must add parentheses to show the order in which you will complete the problem. Because it says “eight times the sum of a number and 6” you have to find the sum first, then multiply 8.
If a system of two linear equations has no solutions, which of the following statements describes the graph of the two corresponding lines in the xy-plane?
a. The lines are coinciding
b. The lines intersect at only one point
c. The lines are parallel
d. The lines are perpendicular
Explain why you picked your answer:
From the linear equation, the option that describes the graph of the two corresponding lines is C. The lines are parallel.
Based on the complete information, it should be noted that the lines are not coinciding and they don't intersect at only one point.
Rather, it can be deduced that the graph of the two corresponding lines in the xy-plane are parallel.
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On which number line are -9 and its opposite shown?
Answer:
Step-by-step explanation:
The answer is c.
this is because the sections on the line are counting by 3 and 3 away from -12 is -9. it's opposite is shown on the right of this line as shown to the right.
There are six wires which need to be attached to a circuit board. A robotic device will attach the wires. The wires can be attached in any order, and the production manager wishes to determine which order would be fastest for the robot to use. Use the multiplication rule of counting to determine the number of possible sequences of assembly that must be tested. (Hint: There are six choices for the first wire, five for the second wire, four for the third wire, etc.)
Answer:
[tex]S=720[/tex]
Step-by-step explanation:
From the question we are told that
Six wire are attached to a circuit board
Generally using multiplication rule
Let number of possible sequence be given as S
Mathematically
[tex]S=6! =6*5*4*3*2*1=720[/tex]
Therefore
Number of possible sequence [tex]S=720[/tex]