Mathematics College
Answers
Answer 1
Answer:
The answer A,B,C
Related Questions
What is 20•0 only wrong answers
Answers
Answer:37
Step-by-step explanation:
The average worker in a manufacturing plant produces 27 units every hour the manager of the plant took a sample of 25 workers and gave them special training designed to increase their productivity after the special training was complete the 25 workers produced 28.2 units every hour with stand deviation of 2.9 what is the probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher
Answers
The probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher is 0.0192.
How to illustrate the information?
It should be noted that from the information, after the special training was complete the 25 workers produced 28.2 units every hour with stand deviation of 2.9.
Therefore, the probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher will be:
= 1 - P[(Z (28.2 - 27)/29/✓25)]
= 1 - P(Z < 2.07)
It should be noted that this will be looked on the distribution table.
= 1 - 0.9808
= 0.0192
Therefore, the probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher is 0.0192.
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solve for c enter thr number
Answers
Answer: c=√29
Step-by-step explanation:
We use Pythagoras' theorem:
[tex]c^2=5^2+2^2\\c^2=5*5+2*2\\c^2=25+4\\c^2=29\\[/tex]
Extract the square root of both parts of the equation:
[tex]\sqrt{c^2}=\sqrt{29} \\ c=\sqrt{29}[/tex]
If f(0) = 1, then the point is _ on the graph of f
Answers
If f (0) = 1, then the point is ( 0 , 1 ) on the graph of f (x).
A point on a graph is represented by the form:
( x , y ) where x is the abscissa and y is the ordinate of the function.
We are given a point on the graph of f ( x ) = y as:
f ( 0 ) = 1
Comparing it with f (x) = y, we get that:
x = 0
y = 1
so, the point will become:
( 0 , 1 )
Therefore, we get that, If f (0) = 1, then the point is ( 0 , 1 ) on the graph of f (x).
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rearrange the equation to make x the subject a=4x/t-p
Answers
If we rearrange the equation to make x the subject a=4x/t-p, then we will have [tex]x= \frac{a(t-p)}{4}[/tex]
How can the equation be re arrange to make x the subject a=4x/t-p?
from the question we were given the equation a=4x/t-p which is required to rearrange so that X can be made the subject of the formular, and this can be done below:
[tex]a=\frac{4x}{t-p}[/tex]
[tex]4x= a(t-p)[/tex]
[tex]x= \frac{a(t-p)}{4}[/tex]
Therefore If we rearrange the equation to make x the subject a=4x/t-p, then we will have , [tex]x= \frac{a(t-p)}{4}[/tex] because if we make the x the subject of the formular it will stay alone at the one side when all other term at the opposite side.
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NOTE; This is a complete question , no given option , even on internet.
Each month, Braxton uses an average of 8 ounces of lotion. Calculate Braxton's total monthly savings if he purchases the brand that has the lowest price per ounce versus the highest price per ounce.
Brand A: 24 ounces for $3.30
Brand B: 40 ounces for $4.60
a $0.18
b $0.75
с $1.30
d $1.50
Answers
Option a: Broxton have a monthly savings of $0.18 if he purchases the brand that has the lowest price per ounce versus the highest price
Given,
Braxton’s average monthly usage of lotion = 8 ounces
The amount of two different brands of lotion are given:
Brand A: 24 ounces for $3.30
Brand B: 40 ounces for $4.60
We have to find the monthly savings of Braxton if he purchases the brand that has the lowest price per ounce versus the highest price:
We have to calculate amount for one ounce for the two brands given:
Brand A:
24 ounces for $3.30
Amount for one ounce = 3.30/24
Amount for one ounce = $0.1375
Brand B:
40 ounces for $4.60
Amount for one ounce = 4.60/40
Amount for one ounce = $0.115
Now, we have to calculate the amount for 8 ounces.
Brand A:
8 x 0.1375 = 1.1
$1.1 for 8 ounces of Brand A lotion.
Brand B:
8 x 0.115 = 0.92
$0.92 for 8 ounces of Brand B lotion.
Now, we have to calculate the savings:
Brand A – Brand B
1.1 – 0.92 = 0.18
That is, Broxton have a monthly savings of $0.18 if he purchases the brand that has the lowest price per ounce versus the highest price.
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Yancey Smith works part-time as a sales assistant. Last week he earned $240. This week he earned $325. Yancey is single and claims 2 allowances. Using the percentage method, how much more will be withheld this week for federal income tax?
Answers
The answer is 17/48
If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.
based on the given conditions , formulates
1×(325-240)÷240
calculate the sum or difference 85/240
cross out the common factor 17/48
so therefore the answer will be 17/48
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:52:26 ATI
f(x) =
wer.
-(x+8)² + 4 for
for
Find f(-5)
x < -5
x ≥ 3
Answers
The value of f(-5) when we solve the function f(x) is -5.
What does the mathematical function mean?
A function is a statement, tenet, or rule that creates a correlation between two variables. In mathematics, functions are used often and are required to build complicated connections.
A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.
The function can be solved as:
[tex]f(x) = -(x+8)^{2} +4[/tex]
[tex]=-(-5+8)^{2}+4[/tex]
[tex]=-(3)^{2}+4[/tex]
[tex]=-9+4[/tex]
[tex]=-5[/tex]
Hence, f(-5) = -5
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Write an expression to represent the perimeter of:
Answers
The expression that represents the perimeter of the triangle in the image is: 7a - 2.
What is the Perimeter of a Triangle?
To find the perimeter of a triangle, add the lengths of the three sides of the triangle together. The sum of the three sides of the triangle is the perimeter of the triangle.
The triangle in the image has the following as the lengths of its sides:
2a - 32a3a + 1
Therefore:
The perimeter of the triangle = 2a - 3 + 2a + 3a + 1
Combine like terms
The perimeter of the triangle = (2a + 2a + 3a) + (- 3 + 1)
The perimeter of the triangle = 7a - 2
Therefore, the expression that represents the perimeter of the triangle in the image is: 7a - 2.
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1. Write a function that describes the area of the water puddle on the floor as a function of its
radius. Use function notation.
Answers
The area of the floor water puddle as a function of radius is 6860. The function notation is mgt∆x = (20 0.5t)g4∆t.
What is meant by function notation?
Function notation is a method for writing functions that are simple to read and understand. When we use function notation, the independent variable is typically x, and the dependent variable is F. (x).
Therefore,
The bucket moves upward at a rate of 40/10 = 4 meters per minute. If time is measured in minutes, the bucket is x = 4t meters above the ground at time t. Water is dripping out at a rate of 5/10 kg/minute. Because there is initially 20 kg of water in the bucket, there is m = 20 0.5t kg remaining at time t.
Consider the interval of time between t and t + t. During this time, the bucket moves ∆x = 4∆t meters. So the work performed during this interval is
mgt∆x = (20 0.5t)g4∆t,
The bucket is x = 4t meters
and the integral for the total work performed is
[tex]4 g \int_0^{10}(20-0.5 \cdot t) d t \\[/tex]
= [tex]4 g\left(20 t-\left.0.25 t^2\right|_0 ^{10}=700 g=700 \cdot(9.8)=6860\right. \text { joules. }[/tex]
Hence, The area of the floor water puddle as a function of radius is 6860.
The complete question is:
A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 40 meters above the ground. This takes ten minutes during which time 5 kg of water drips out at a steady rate through a hole in the bottom of the bucket. Find the work needed to raise the bucket to the platform
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I'm having trouble with this problem, if anyone could help I would really appreciate it. Thank you :)
Answers
The probability of the event of a wafer to be conforming and from lot A are as follows;
(a) P(A) ≈ 0.15541
(b) P(C) ≈ 0.84
(c) P(AC) ≈ 0.159
(d) P(A|C) ≈ 0.86
(e) P(C|A) ≈ 0.185
(f) E1 and E2 are independent events
How can the probability of an event be determined?
Probability is given by the ratio of the number of required outcomes divided by the number of possible outcomes.
(a) The number of wafers from lot A = 79 + 13 = 92
79+13+157+43+260+40 = 592
Which gives;
The probability that the wafer is from lot A is therefore;
P(A) = 92/592 ≈ 0.15541
(b) The conforming wafers = 79+157+260 = 496
Which gives;
P(C) = 496/592 ≈ 0.84
(c) The conforming wafers in lot A are 79
Therefore;
The probability that the wafer is from lot A and conforming is therefore;
P(AC) = 79/496 ≈ 0.159
(d) The probability that the wafer is conforming, given that it is from lot A is therefore;
P(A|C) = 79/92 ≈ 0.86
(e) The number of conforming wafers = 496
The probability that the wafer is from lot A given that it is conforming is therefore;
P(C|A) = 92/496 ≈ 0.185
(f) Independent events are events such that the occurrence of one does not impact the probability of the other.
Given that the occurrence of E1 changes the probability of event E2 if the wafer is not replaced, the events are not independent events.
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The vertices of a rectangle are A(− 4, 2), B(3, 2), C(3, − 5), and D(− 4, − 5). If the rectangle is dilated by a scale factor of 3, what will be the coordinates of vertex C′?
Answers
By using a dilation around the origin, the coordinates of vertex C' are C'(x, y) = (9, - 15).
What are the coordinates of a vertex of a rectangle?
In this problem we find the four vertices of a rectangle and a scale factor and we are asked to determine the coordinates of the image of one of its vertices by using a dilation. Under the assumption of dilation about the origin, then the transformation rule is defined below:
C'(x, y) = 3 · C(x, y)
Where:
C(x, y) - Coordinates of the original point.C'(x, y) - Coordinates of the resulting point.
If we know that C(x, y) = (3, - 5), then the coordinates of vertex C' are:
C'(x, y) = 3 · (3, - 5)
C'(x, y) = (9, - 15)
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-6(w +5 ) +9<-51
Solve the inequality
Answers
Answer:
w>5
Step-by-step explanation:
Go onto symbolab it's a website good for solving math problems like this
IF THERE IS A COEFFICIENT, MULTIPLY THE WHOLE NUMBERS
Answers
Answer:
15 rt2
56 rt2
15 rt3
9 rt5
Step-by-step explanation:
[tex]3\sqrt{50} =3\sqrt{5*5*2} =3*5\sqrt{2} =15\sqrt{2}[/tex]
[tex]8\sqrt{98} =8\sqrt{2*7*7} =8*7\sqrt{2} =56\sqrt{2}[/tex]
[tex]5\sqrt{27} =5\sqrt{3*3*3} =5*3\sqrt{3} =15\sqrt{3}[/tex]
[tex]3\sqrt{45}=3 \sqrt{5*3*3} =3*3\sqrt{5} =9\sqrt{5}[/tex]
Is 0.375 rational or irrational
Answers
Rational numbers can be written as fractions. 0.375 can be written as a fraction. Therefore it’s a rational number.
0.375 is a rational numbers.
What are rational numbers?
A rational number is any number that can be expressed as a fraction, where both the numerator (the top number) and the denominator (the bottom number) are integers, where the denominator of the fraction is not equal to zero.
0.375 can be written as a fraction.
0.375 = 375/1000
Therefore 0.375 is a rational number.
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which are the partial products of 3,706×4?
Answers
The partial products of 3706 × 4 is ( 3000 × 4 ) + ( 706 × 4 ).
Calculating the productof two or more numbers is the procedure known as multiplication in mathematics. When two integers are multiplied together in mathematics, the result is a product or an expression that describes the factors to be multiplied.
The decimal numeral system is widely used to express both integer and non-integer numbers. The way of representing numbers in the decimal system is known as decimal notation.
The given product is 3706 × 4 and can be written as:-
3706 × 4 = [ 3000 + 706 ] × 4
3706 × 4 = ( 3000 × 4 ) + ( 706 × 4 )
Therefore, the partial products of the given expression is ( 3000 x 4 ) + ( 706 x 4 ).
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points B (-6, 0) and C(-1, -5) are translated to B' and C', respectively.
What are the coordinates of B' and C'?
Answers
Answer: The answer would be for "B" that it's 6 units to the left and 0 units down and for "C" It would 1 to the left and -5 units down!
Step-by-step explanation: I used a graph to help me determine these coordinates :D
0.983/0.3 in fraction form
Answers
Answer:
983/300 or 3 83/300
Step-by-step explanation:
Multiply to move the decimal, therefore giving you a whole number.
there are ten birdbaths in a park. on the first day of spring, the birdbaths are filled. Several weeks later, the overall change in the water level is found. the results are shown in the table. what is the range of the data?
Answers
Based on the change in the water levels of the ten birdbaths in the park, the range of the data is 4.2.
How to find range?
To find the range of a distribution of numbers, you need to subtract the smallest number from the largest number.
The largest number in the distribution of birdbaths is 2.6 and the smallest number in the distribution is -1.6
The range is therefore:
= 2.6 - (-1.6)
= 2.6 + 1.6
= 4.2
The range of numbers are:
2.2, 0.3, -1.5, 2.6, 1.9, 0.4, 0.6, -1.6, 2.5, -0.6
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You started this year with $447 saved and you continue to save an additional $27 per month. Write an algebraic expression to represent the total amount of money saved after m months.
Answers
Answer:
s = 13m + 384
hope this helped <3
Which expression is equivalent to quantity negative three and one fourth times d plus three fifths end quantity minus quantity two and seven eighths times d plus seven tenths end quantity?
A negative forty nine over 8 times d minus one tenth
B forty nine over eight times d minus one tenth
C negative three eighths times d minus one and three tenths
D negative three eighths times d minus one tenth
Answers
C is the correct answer...
21. A room has a rectangular floor plan as laid out below. Answer the following questions. What is the perimeter of the room in feet?
Answers
Answer:
[tex]50ft[/tex]
Step-by-step explanation:
you have to find the missing side by subtract
[tex]14.8 - 7 = 7.8[/tex]
and
[tex]10.2 - 4.5 = 5.7[/tex]
then you add all these to find the perimeter
[tex]p = 14.8 + 4.5 + 7.8 + 5.7 + 7 + 10.2 [/tex]
[tex]p = 50ft[/tex]
do not leave out your signs
19/22
How many solutions?
3x+8 = 9+ 3x
Infinitely many solutions
Answers
Answer: No solutions
Reason:
Subtract 3x from both sides. They cancel out and go away. The x term is fully eliminated and we're left with the equation 8 = 9, which is a false statement. Therefore, the original equation is always false regardless of what you pick for x. This is why there aren't any solutions.
Visually you can graph y = 3x+8 and y = 3x+9. You'll get parallel lines that never intersect. We need the lines to intersect if we wanted a solution point. Parallel lines have the same slope, but different y intercepts.
Because the system has no solutions, we consider the system inconsistent.
The dance team lines up in 4 rows of 6 dancers each. How many dancers are on the dance team?
? dancers
6 6 6 6
4 rows →. ^
6 dancers in each row
Answers
666666666‼️jdhsheehehehdhehebbdd
What is the solution of |X - 15 =-6
Answers
Answer:
x = 9
Step-by-step explanation:
Add 15 on both sides
[tex]x - 15 + 15 = -6 + 15[/tex]
Simplify it
[tex]-6 + 15 = 15 - 6 = 9\\x = 9[/tex]
Need Help
Apples cost $2/lb but 15 apples cost $4. How many pounds does an apple weigh?
A 2/15
B 15/2
C 1/15
D 1/30
E 15
Answers
Well, you start out by recognizing that 4/5ths of an ounce equals 1/5 of the apples weight. Therefore, you must multiply 4/5 by 5 to get the whole of the Apple. (1/5*5).
So, this is the lines,
4/5*5= 20/5, or 4 ounce
Another way, is with decimals, so
0.8*5=4.0
The Bryant family and the Parker family each used their sprinklers last summer. The Bryant family's sprinkler was used for 25 hours. The Parker family's
sprinkler was used for 40 hours. There was a combined total output of 1800 L of water. What was the water output rate for each sprinkler if the sum of the two
rates was 60 L per hr
Answers
The water output rate for Bryant family is 40L/hr and parkar family is sprinkler 20L/hr.
As in the given problem The Bryant family's sprinkler was used for 25 hours. let water output rate of bryant family is x L/hour.Thus total water output is 25*x L.
The Parker family's sprinkler was used for 40 hours.let water output rate of parker family is y L/hr.Total water output is 40*y L.
Thus 25*x+40*y=1800
and x+y=60
25x+25y=1500
solving linear equation we get y=20 L/hr
Thus x=60-20=40 L/hr.
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There is a bell at the top of the tower that is 50m high.The bell weight 180N. The has ___ energy
(Can u pls use GRESA?)
Answers
There is 9,000 Joule energy present in the bulb
Gravitational Potential Energy
The energy that an object store due to its height in a gravitational field is known as gravitational potential energy.
It can be calculated by using the equation below
U=m.g.h
Where:
m = mass of the object
h = height
g = acceleration due to gravity, or
Since the weight of an object of mass m can be calculated as:
W = m.g
The gravitational potential energy is:
U = W.h
The bell of weight W=180 N at the top of a tower is h=50 m high. Thus its energy is:
U = 180 N * 50 m
U = 9000 Joule
Hence, The bell has 9,000 Joule energy.
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State the property illustrated in the equation:
26 x (4x x y) = (26 × 4x) x y
O commutative property of multiplication
O property of multiplicative inverses
O associative property of multiplication
d
O distributive property
Answers
Answer:
O commutative property of multiplication
Step-by-step explanation:
Let's solve for x.
26(4xy)=(26)(4)xy
Step 1: Add -104xy to both sides.
104xy+−104xy=104xy+−104xy
0=0
It doesn't matter what order the numbers are multiplied in (commutative property), the result of multiplying 0 by anything (or anything by 0) is 0. No matter the type of number, whether it be an integer, fraction, decimal, or even imaginary, the product of that number and 0 is 0.
Aisha just received a $40 paycheck from her new job. She spends some of it buying music online and saves the rest in a bank account. Her savings is given by f(x)=40-1.25x, where x is the number of songs she downloads at $1.25 per song. Graph the function.
Answers
The graph of saving function f(x) = 40 - 1.25x has been plotted with a slope of -1.25.
How to plot a graph?
A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.
In order to plot the graph, we need to find out y's values corresponding to x's value
Given the function,
f(x) = 40 - 1.25x
Now to plot it we need to put x = 0
f(0) = 40 so y-intercept is (0,40)
Now keep f(x) = 0
Then 0 = 40 - 1.25x
x = 40/1.25 = 32
So x-intercept is (32,0)
So plot a straight line using points (0,40) and (32,0).
Hence "The graph of saving function f(x) = 40 - 1.25x has been plotted".
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