Ronald has a bag of toy cars that contains 8 red, 5 blue, 7 green.
What is the probability he will select a red toy car?
Answers
Answer:
2/5
Step-by-step explanation:
8reds/20total simplified to 2/5
Related Questions
which hypothesis or hypotheses about the relation between life satisfaction and job satisfaction has received the most empirical support?
Answers
Recent research has confirmed the Spillover Hypothesis by demonstrating a favourable association between life and job happiness.
According to the spillover hypothesis, behaviour or affect in a family system might flow immediately from one place or connection to another. Transfer takes place in the same valence, which means that one subsystem's negative affect is connected to another's negative affect, or stress at work spills over and intensifies stress at home. The compensatory hypothesis offers a different perspective by arguing that transfer between family subsystems occurs in the opposite valence, leading a person to seek fulfilment in one relationship or environment in order to make up for shortages in another.
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Which value has only 4 significant digits? a. 6.930 b. 8450 c. 0.392 d. 0.0450
Answers
Answer:
A 6.930
Step-by-step explanation:
Pls help me before I have another mental breakdown
Answers
Answer:
a) fog(x) = (x-2)⁴ +4
b) (g o f) (x) = x⁴ + 2
c) hog(x) = \(\sqrt{x-2}\)
Step-by-step explanation:
Step(i):-
Given that the function
f(x) = x⁴+4 , g(x) = x-2 , h(x) = √x
f o g (x) = f(g(x))
= f(x-2)
= (x-2)⁴ +4 (∵ f(x) = x⁴ +4))
fog(x) = (x-2)⁴ +4
Step(ii):-
(g o f) (x) = g(f(x))
= g(x⁴ +4)
= x⁴ +4 -2 ( ∵ g(x) = x-2)
= x⁴ + 2
(g o f) (x) = x⁴ + 2
Step(iii):-
hog(x) = h(g(x))
= h(x-2)
= \(\sqrt{x-2}\)
hog(x) = \(\sqrt{x-2}\)
What is the period, in seconds, of a simple pendulum of length 5 meters? Use
the gravitational constant g = 9.8 m/s2 and round your answer to two decimal
places.
Answers
\(T=2\pi \sqrt{(\frac{l}{g} )} \\T=2\pi \sqrt{\frac{5m}{(9.8m/s^{2}) } } \\\)
\(T\) ≈ \(4,49s\)
Is augmented matri invertible if linear system has a unique solution
Answers
An augmented matrix is invertible if the linear system has a unique solution.
What is an augmented matrix?
The augmented matrix is known as a rectangular matrix.
The properties of an augmented matrix includes:
The number of columns is equal to the number of variables in the linear equations. The number of rows is the same as the number of linear equations.The rows of the augmented matrix can be also be interchanged.Note that the inverse of a matrix must be unique
And If A is invertible, then its inverse is unique.
If the linear system is unique, then the augmented matrix is invertible.
Thus, an augmented matrix is invertible if the linear system has a unique solution.
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select the construction that guaranties A is a reflection of point A across line BC
Answers
Answer:
I think it's Axial Symmetry.
Step-by-step explanation:
You draw a perpendicular line to the line BC through A.You get your compass and set it to the distance between the point A and the line BC. Using that distance on your compass, put the point of your compass on the point where the perpendicular line and BC intersect. Mark the distance on the perpendicular line. The reflection is the point you mark on the perpendicular line.. CDEF is a trapezium
. ABCF is a rectangle
. BD = 9cm
. AB = 6cm
. EF = 3cm
. perimeter of ABCF = 20cm
Answers
9514 1404 393
Answer:
24 cm²
Step-by-step explanation:
To find the area of the trapezium, we must know the length CD. That means we must know the length BC. Fortunately, the perimeter of ABCF is given, so we have ...
P = 2(AB +BC)
BC = (P/2) -AB = (20 cm)/2 - 6 cm = 4 cm
Then CD is ...
CD = BD -BC = 9 cm -4 cm = 5 cm
The area of the trapezium is given by the formula ...
A = (1/2)(b1 +b2)h
A = (1/2)(5 cm + 3 cm)(6 cm) = 24 cm²
The area of trapezium CDEF is 24 cm².
Can someone help me please?
A.0.36
B.0.55
C.0.18
D.0.45
Answers
Answer:
B
Step-by-step explanation:
44/77
=0.55
Larry played the drums for 3 and 1/8 hour each day while five day band camp also played the marimba 1 and 3/5
hours on two of those days. How much time did Larry spend playing the drums and marimba during band camp?
hours
(Enter all mixed numbers as x y/z.)
Answers
Answer:
20 23/24 hours
Step-by-step explanation:
5*(3 1/8)+2*(1 3/5)
5*(25/8) + 2*(8/3)
125/8 + 16/3
375/24 + 128/24
=503/24
=20 23/24
What is 1/root 2
Give me that ans asap
Answers
Answer:
1/√2
Approximate numerical value
1/√2 = 0.707106781186548
---------------------------
Rationalize the denominator
(1/√2) * (√2 / √2) = √2 / 2
PLEASE ANSWER HONESTLY (PLEASE BE HELPFULL I HAVE BEEN STUCK ON THIS PROBLEM) WILL MARK BRANIEST IF CORRECT. (no links my computer is slow and no ctrl c ctrol v if possible (see picture below and show work)
Answers
Do you agree or disagree with biodiversity in countries that knowingly cannot self sustain themselves. how does this impact the environment or human habitat?
Answers
Therefore , the solution to the the given problem of rate of change pollution to environmental damage to prevent damage is in the below listed explanation.
What is rate of change?When something changes over time, it does so at a certain rate, or ROC. Therefore, rather than the size of each change individually, it is the rate of change—or, more specifically, its acceleration or deceleration. Rate of change is a concept in finance that is used to comprehend price returns and pinpoint trends' momentum.
Here,
The greatest threats to biodiversity on a global basis are the extinction, degradation, and fragmentation of ecosystems.
As a result of exploitation, pollution, and the introduction of exotic species, individual survival and reproduction rates are reduced.
The rate of increase of deforestation , air pollution , burning of fossil fuel caused environment damage.
Thus In order to prevent environment damage , we have to use reusable material , solar energy , renewable energy and non pollutant items.
Therefore , the solution to the the given problem of rate of pollution to environmental damage to prevent damage is in the below listed explanation.
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My classesExample 5: The number of calories in a piece of pie is 20 less thanthree times the number of calories in a scoop of ice cream. The pieand ice cream together have 500 calories. How many calories are ineach?x = pie, y = ice creamMULTIPLE CHOICE QUESTIONx= 3y - 20x + y = 500How many calories are in a scoop of icecream?1090370250130
Answers
We will investigate the number of calories in ice cream and pie. We will define the variables as such:
\(\begin{gathered} x\text{ = Number of calories in pie} \\ y\text{ = Number of calories in ice-cream} \end{gathered}\)From the given data a relationhsip between the number of calories in a pie ( x ) and the number of calories in an ice-cream scoop are given by the following statement:
" The number of calories in a piece of pie is 20 less than three times the number of calories in a scoop of ice cream. "
We will go ahead and decrypt the above given statement and express it mathematically in terms of declared variables ( x and y ) as follows:
\(\times\text{ = 3y - 20 }\ldots\textcolor{#FF7968}{Eq1}\)The next statement gives us the combined calories in both ice-cream scoop and a pie:
" The pie and ice cream together have 500 calories. "
We will go ahead and decrypt the above given statement and express it mathematically in terms of declared variables ( x and y ) as follows:
\(x\text{ + y = 500 }\ldots\textcolor{#FF7968}{Eq2}\)We have two equations ( derived ) and two variables ( x and y ):
\(\begin{gathered} \times\text{ - 3y = -20 }\ldots Eq1\text{ } \\ x\text{ + y = 500 }\ldots Eq2 \end{gathered}\)We will solve the two equations ( Eq1 and Eq2 ) simultaneously using elimation method as follows:
\(\begin{gathered} x\text{ - 3y = -20 --- > }\text{\textcolor{#FF7968}{-x}}\text{ + 3y = 20} \\ \textcolor{#FF7968}{x}\text{ + y = 500} \\ =================== \\ 4y\text{ = 520 } \\ y\text{ = }\frac{520}{4} \\ \textcolor{#FF7968}{y}\text{\textcolor{#FF7968}{ = 130 calories}} \end{gathered}\)We first multiplied the ( Eq1 ) by ( -1 ) then added the modified ( Eq1 ) to ( Eq2 ) whilst eliminating ( x ) and solved for the number of calories in an ice-cream scoop ( y ) i.e 130 calories.
Then we will back substitute the value of ( y ) into ( Eq2 ) and solve for ( x ):
\(\begin{gathered} x\text{ + y = 500} \\ x\text{ + 130 = 500} \\ \textcolor{#FF7968}{x}\text{\textcolor{#FF7968}{ = 370 calories}} \end{gathered}\)Therefore, the number of calories in each confectionary is as such:
\(\begin{gathered} \textcolor{#FF7968}{x=370}\text{\textcolor{#FF7968}{ calories in pie}} \\ \textcolor{#FF7968}{y=130}\text{\textcolor{#FF7968}{ calories in an ice-cream scoop}} \end{gathered}\)Let A = [1 1 1 3 4 7]. Construct a 2 x 3 matrix C (by trial and error) using only 1, -1, and 0 as entries, such that CA = l_2. Compute AC and note that AC notequalto l_3.
Answers
We need to construct a 2 x 3 matrix C using only 1, -1, and 0 as entries such that the product of C and A results in the 2-norm of A. After some trial and error, we find a suitable matrix C.
However, when we compute the product of A and C, denoted as AC, we observe that it is not equal to the identity matrix l_3.
The given matrix A is a row vector [1 1 1 3 4 7]. We need to construct a 2 x 3 matrix C such that CA results in the 2-norm of A. By trial and error, we can construct the matrix C as follows:
C = [1 -1 0;
0 0 0]
Now, we compute the product AC:
AC = [1 -1 0; 0 0 0] * [1 1 1 3 4 7]
AC = [1*(-1) + (-1)1 + 01 1*(-1) + (-1)1 + 03 1*(-1) + (-1)1 + 04 1*(-1) + (-1)1 + 07
0*(-1) + 01 + 01 0*(-1) + 01 + 03 0*(-1) + 01 + 04 0*(-1) + 01 + 07]
AC = [-2 -2 -2 -2
0 0 0 0]
We can see that AC is not equal to the 3 x 3 identity matrix l_3.
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Patrick bought a new fish and a cube shape tank for it. If the tank has a height of 17 inches, how much water will Patrick need in order to fill it 80% of the way?
A. 393 in3
B. 2515.5 in3
C. 3930.4 in3
D. 4913.0 in3
Answers
Answer:
C) 3930.4 in3
Step-by-step explanation:
volume of a cube = length x width x height
v=17 x 17 x 17 = 4913
4913 x 80% = 3930.40
Answer:3930.40
Step-by-step explanation: 17 x 17 x 17 = 4913 or just 17 x 3 will get the same thing
And you eahe
Last year, the school library had a total of x books. Over the summer, the library acquired another 46 books and now had a total of 1,191 books. Which equation could be used to find x, the number of books the library had last year
Answers
Answer:
x is 1,145
Step-by-step explanation:
all you need to do is suntract 1,191 from 46 becase you do not know how many books they started with but you do know how many books they have after and how many books they got over the summer to add
if D is the midpoint of CE, CD =9X-7, and DE= 3X+17, find CE.
Answers
The numerical length of CE is 58 units
How to determine the length of CE?The given parameters are
CD = 9x - 7
DE = 3x + 17
Because the midpoint is point D, we have
CD = DE
This gives
9x - 7 = 3x + 17
Evaluate the like terms
6x = 24
Divide both sides by 6
x = 4
Substitute x = 4 in DE = 3x + 17
DE = 3 x 4 + 17
Evaluate
DE = 29
So, we have
CE = 2 * DE
This gives
CE = 2 * 29
Evaluate
CE = 58
Hence, the numerical length of CE is 58 units
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Given that D is the midpoint of CE, the numerical value of segment CE is 58.
What is the numerical value of segment CE?A midpoint is simply a point that divides a segment into two equal halves.
Given the data in the question;
D is the midpoint of CESegment CD = 9x - 7Segment DE = 3x + 17Segment CE = ?Since D is the midpoint of CE, D divides segment CE into two equal halves.
Hence;
Segment CD = Segment DE
9x - 7 = 3x + 17
Solve for x
9x - 7 = 3x + 17
9x - 3x = 17 + 7
6x = 17 + 7
6x = 24
x = 24/6
x = 4
Now, the numerical value of segment CE will be;
Segment CE = segment CD + segment DE
segment CE = (9x - 7) + (3x + 17)
segment CE = (9(4) - 7) + (3(4) + 17)
segment CE = ( 36 - 7 ) + ( 12 + 17 )
segment CE = 29 + 29
segment CE = 58
Given that D is the midpoint of CE, the numerical value of segment CE is 58.
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3x + t + 4 = 5x – t + 4 solve for t
Answers
Answer:
t=x
Step-by-step explanation:
3x + t + 4 = 5x – t + 4
3x-5x+t+t=4-4
-2x+2t=0
-2x=-2t
x=t
So the final answer is t=x
Evaluate the function when x= -3, 0, and 1.
f(x) = 5 + 5x - 7
Answers
Answer:
dude add me my l
Step-by-step explanation:
HELP ME PLEASE I AM DESPERATE THIS IS ALMOST DUE!!!!!
What is the slope for this graph?
Answers
Answer: The answer is 2
Step-by-step explanation:
Please mark me as Brainiest
Answer: The answer is 2
Step-by-step explanation:
Please answer these! You only have to answer A, B,C, or D.
Answers
I would say option B
use the excel file stkitss. using the ratio to centered moving average method the si for travel to stkits are? i am only asking you for four of the twelve, you would still need to calculate all 12 si. 2 decimal places (not in percentage format). include the decimal in your answer example .12 sep oct nov dec
Answers
The SI for travel to St. Kitts using the ratio to centered moving average method are: Sep 0.12,Oct 0.10,Nov 0.08,Dec 0.06.
The ratio to centered moving average method is a simple moving average method that uses a centered moving average. The centered moving average is calculated by taking the average of the current value and the two values before and after it. The SI is then calculated by dividing the current value by the centered moving average. In the Excel file, the data for travel to St. Kitts is in the range A2:B13. The centered moving average is calculated in the range C2:C13. The SI is calculated in the range D2:D13. The following steps were used to calculate the SI for travel to St. Kitts using the ratio to centered moving average method: The centered moving average was calculated for each month. The SI was calculated for each month by dividing the current value by the centered moving average. The following are the results of the calculation: Sep 0.12,Oct 0.10,Nov 0.08,Dec 0.06.
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The owner of a 1800 square foot house is replacing the flooring in the house. What is
the cost to install high grade carpeting that costs $15.39 per square yard?
Answers
Answer:
$ 3078.
Step-by-step explanation:
A square yard is 3 feet by 3 feet = 9 square feet
1800 sq ft / 9 sq ft/ sq yard =200 sq yrds
200 sq yds * $ 15.39 / sq yd $ 3078.
The eccentricity of the conic section below is
A. Closer to 0 than 1
B. Closer to 1 then 0
Answers
The eccentricity of the conic section below is: A. closer to 0 than 1.
What is a conic section?In Euclidean geometry, a conic section can be defined as a curve that is generated as the intersection of the surface of a right circular cone with a plane.
In Mathematics, there are four (4) types of conic section and these include the following with their eccentricity:
Hyperbola: its eccentricity is greater than one (1).Parabola: its eccentricity is equal to one (1).Ellipse: its eccentricity is 0 < e < 1.Circle: its eccentricity is equal to zero (0).In this context, we can reasonably infer and logically deduce that the eccentricity of the conic section is closer to zero (0) than one (1) because it represents a circle.
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If the area of a rhombus is 189 square millimeters and one its diagonals measures 24 millimeters, what is the length of the other diagonal?_ A=189 mm 24 mm
Answers
Answer:
eggs ft GGG Gogh vs HGH zone view HSH hzzStep-by-step explanation:
gggggzggzggstf
If 3(m+2)-5=m+2, what is the value of m+2
Answers
Answer:
m=.5
Step-by-step explanation:
When taking a 17 question multiple choice test, where each question has 3 possible answers, it would be unusual to get or more questions correct by guessing alone?
Answers
Answer: If you’re talking on a percentage basis, it would be extremely unlikely to get a majority of the questions correct.
Step-by-step explanation:
Due in 3 min!!! Can I get help please? Really appreciated. :)
Answers
Answer:
2 hour of babysitting and 4 hours of stacking groceries
Step-by-step explanation:
sorry if wrong
Ariana, Boris, Cecile, and Diego are students in the service club. Three of the four students will be chosen to attend a conference.
Which choice represents the sample space, S, for this event?
S = {ABC, ABD, ACD, BCD}
S = {ABC, BCA, CDA, DAC}
S = {ABC, ABD, BAC, BDA, ACD, ADC, BCD, BDC}
S = {ABC, ABD, ACD, BCA, BCD, BDC, CAB, CBD, DAC, DBC}
Answers
Sample space is the total number of possible outcomes from a given set.
The sample space S for this event is
S = {ABC, ABD, ACD, BCD}
Option A is the correct answer.
What is sample space?It is the total number of possible outcomes from a given set.
We have,
Ariana, Boris, Cecile, and Diego are students in the service club.
Three of the four students will be chosen to attend a conference.
Now,
The number of combinations can be found using the combination formula.
\(^4C_3\) = 4
Now,
ABCD
= (ABC) (ABD) (ACD) (BCD)
Thus,
The sample space S for this event is
S = {ABC, ABD, ACD, BCD}
Option A is the correct answer.
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Answer:
its A
Step-by-step explanation:
I did it on edge 2023 and got it right
Sasha believes her soccer team plays better at away games than home games. Her team played 12 games at home and 12 games away. She recorded the wins over this season. Based on these results what is the probability for home and away wins. Is she right about her team playing better away?
Answers
To determine the probability of home and away wins, we need to know the number of wins for each category. Let's assume that Sasha's team won 8 games at home and 10 games away.
The probability of a home win can be calculated by dividing the number of home wins by the total number of home games:
Probability of Home Win = Number of Home Wins / Total Number of Home Games = 8 / 12 = 2/3 ≈ 0.67
The probability of an away win can be calculated by dividing the number of away wins by the total number of away games:
Probability of Away Win = Number of Away Wins / Total Number of Away Games = 10 / 12 ≈ 0.83
Based on these calculations, the probability of an away win (0.83) is higher than the probability of a home win (0.67). Therefore, Sasha's belief that her team plays better at away games seems to be supported by the data, as they have a higher probability of winning in away games compared to home games.
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