Please help! I've been on this question for more than an hour...
You pick a card at random. Without putting the first card back, you pick a second card at random.
What is the probability of picking an even number and then picking an even number?
Simplify your answer and write it as a fraction or whole number.
Answers
1/6 and you got the comment why
Answer:
1/6
Step-by-step explanation:
Out of these four card choices, for the first pick there are two even cards and four cards in total. This means that on the first pick there is a 2/4=1/2 chance that you pick an even card. On the second pick, if you do not replace the card, then there is 1 even card remaining, and 3 cards in total, leaving a probability of 1/3. Multiplying these two probabilities together, you get an overall chance of 1/6. Hope this helps!
Related Questions
A graph shows the horizontal axis numbered 2 to 8 and the vertical axis numbered 10 to 50. A line increases from 0 to 4 then decreases from 4 to 9. Which type of function best models the data shown on
Answers
Answer:
quadratic
Step-by-step explanation:
The Quadratic function is the best models for the given graph.
What is quadratic function?A quadratic function is a "polynomial function with one or more variable in which highest exponent of variable is two".
According to the question,
Horizontal axis or x-axis quadratic function of numbered 2-8 and vertical axis or y-axis quadratic function numbered to 10-50.
In order to find the best models function is quadratic function.
f(x) = ax²+bx+c a < 0
Domain = All real numbers
Range y ≤ f(-[tex]\frac{b}{2a}[/tex])
Increases on left of x = -[tex]\frac{b}{2a}[/tex]
Decreases on right of x = -[tex]\frac{b}{2a}[/tex]
The vertex of the parabola lies on the axis of the parabola so the graph of the quadratic function increases on one side axis and decreases on the other side.
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geometry please help!!
Answers
Write a function with no horizontal shift for the sinusoid shown.
Answers
We have been given graph of a sinusoidal function. We are asked to write function formula for our given graph.
We know that [tex]\sin(0)=0[/tex] and [tex]\cos(0)=1[/tex]. We can see that our given function is starting at origin, so our graph is sine function.
We know that general form of sine is [tex]y=A\sin[B(x-c)]+D[/tex], where,
A = Amplitude,
Period: [tex]\frac{2\pi}{B}[/tex]
C = Horizontal shift,
D = Vertical shift.
We have been given that function has no horizontal shift, so the value of C is 0.
We can also see that midline of our function is x-axis, so there is no vertical shift as well that is [tex]D=0[/tex].
We can see that function goes up to 1 from midline and goes down to [tex]-1[/tex] from midline, so amplitude of function is 1 that is [tex]A=1[/tex].
We can see that period of our given function is [tex]4\pi[/tex] because it completes one cycle from [tex]-\pi[/tex] to [tex]3\pi[/tex]
[tex]4\pi=\frac{2\pi}{B}[/tex]
[tex]B=\frac{2\pi}{4\pi}=\frac{1}{2}[/tex]
[tex]y=\sin(\frac{1}{2}x)[/tex]
We can see that our function is reflected about x-axis, so our function will be [tex]y=-f(x)[/tex].
[tex]y=-\sin(\frac{1}{2}x)[/tex]
Therefore, our required function is [tex]y=-\sin(\frac{1}{2}x)[/tex].
A used car dealer prices her cars so that she makes a minimum profit of 15% on each car sold. If she acquired a car for $4,500, which inequality can be used to determine the acceptable selling prices, p, of that car? 1.15 p less-than-or-equal-to 4,500 1.15 p greater-than-or-equal-to 4,500 p less-than-or-equal-to 1.15 (4,500) p greater-than-or-equal-to 1.15 (4,500)
Answers
Answer:
[tex]p\geq 1.15(4,500)[/tex]
Step-by-step explanation:
If she makes a minimum profit, we need to use the symbol [tex]\geq[/tex], which indicates minimum quality.
Let's call [tex]p[/tex] profit, so the inequality which represent this problem would be
[tex]p\geq 1.15(4,500)[/tex]
The price of the car is multiplied by 1.15, because she must add her profit comission which is 0.15 or 15%.
Therefore, the right answer is the last choice.
Answer:
D
Step-by-step explanation:
i did the same thing
Solve similar triangles can someone please answer
Answers
Answer:
Step-by-step explanation:
[tex]\frac{XY}{PQ}=\frac{YZ}{QR}\\\\\frac{19.5}{6.5}=\frac{10.5}{k}\\\\[/tex]
Cross multiply,
19.5*k = 10.5 * 6.5
[tex]k =\frac{10.5*6.5}{19.5}\\\\k=3.5[/tex]
Tenemos tres tipos de aceites, 5000 l de aceite tipo A, 2500 l de aceite tipo B y 245 l de aceite tipo C. Si los quiero envasar en recipientes de igual capacidad y los mas grandes posibles, ¿cuántos recipientes necesito?
Answers
Answer:
5 liters.Step-by-step explanation:
To solve this problem, we need to find the Greatest Common Factor (GCF) which is the greater factor possible in common for all three numbers 5000, 2500 and 245 liters.
5,000 | 2
2,500 | 2
1,250 | 2
625 | 5
125 | 5
25 | 5
5 | 5
1
So, [tex]5,000 = 2 \times 2 \times 2 \times 5 \times 5 \times 5 \times 5[/tex], [tex]2,500 = 2 \times 2 \times 5 \times 5 \times 5 \times 5[/tex]
245 | 5
49 | 7
7 | 7
1
[tex]245 = 5 \times 7 \times 7[/tex]
As you can observe, the greatest common factor is 5, because it's the greater number in common for all three numbers.
Therefore, the greatest recipient possible must be 5 liters capacity.
Find the obsolete value
l-9l 2. l64l 3. l-22l
Answers
Answer:
see below
Step-by-step explanation:
The absolute value means take the non negative value
l-9l = 9
l64l =64
l-22l=22
Answer:
1. 9 2. 64 3. 22
Step-by-step explanation:
The obsolute value is how far away the number is from zero
For example:
I-94I is 94
but
-I94I is -94
if the negative is outside the equation then its a negative
Which of the following is a binomial with degree 4?
A. 4x4 − 5x3 + 2x2 − x + 1
B. 3x4 + 1
C. 4x − 3
D. A binomial cannot have degree 4.
Answers
Answer:
the answer is A
Step-by-step explanation:
hope it's help
Crunch Bunch cereal boxes come in two sizes. The mini cereal box of Crunch Bunch is a reduction of the standard box.
Answers
Answer:
Despite the full question not being in place the anwser your looking for is 10 inches.
Answer:
10 inches
Step-by-step explanation:
What are the answers
Answers
Answer:
Insert question here--->
Step-by-step explanation:
In the diagram below of circle O, OB and OC are radii, and chords AB, BC,
and AC are drawn.
B
С
Which statement must always be true?
1) ZBAC & ZBOC
2) MZBAC -
3) ABAC and ABOC are isosceles.
4) The area of ABAC is twice the area
of ABOC.
m_BOC
Answers
Answer:
It would be number 2. measure of angle BAC is equal to half the measure of angle BOC.
Step-by-step explanation:
This is because of inscribed angles.
In the diagram below of circle O, OB and OC are radii, and chords AB, BC, and AC are drawn. The correct statement is B. m < BAC = 1/2 m < BOC.
How to explain the circle?From the information given, (a + b) + (a + c) + (b + c) = 180°
2a + 2b + 2c = 180°
2a + 2b = 180° - 2c
2(a + b) = 180° - 2c
Therefore, m < BAC = 1/2 m < BOC.
In conclusion, the correct option is B.
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The height of players on a football team is normally distributed with a mean of 74 inches, and a standard deviation of 1 inch. If there are 50 football players on the team, how many are less than 74 inches tall?
Answers
Answer:
Step-by-step explanation:
Let x be the random variable representing the height of players on the football team. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/(σ/√n)
Where
x = sample mean
µ = population mean
σ = standard deviation
n = number of samples
From the information given,
µ = 74 inches
σ = 1 inch
n = 50
x = 74 inches
the probability that a player is less than 74 inches tall is expressed as
P(x < 74)
For x = 74,
z = (74 - 74)/(1/√50) = 0
Looking at the normal distribution table, the probability corresponding to the z score is 0.5
Therefore,
P(x < 74)
The players less than 74 inches is
0.5 × 50 = 25 players
what is (1−2g+4h)x5
Answers
Answer:
-10g+20h+5 is the answer when you do distribution.
The table shows Peter's net worth statement. Assets are shown as positive numbers, and liabilities are shown as negative numbers. The value of Peter's house is not given. Peter's net worth is $101,800. Based on the information in the table, what is the current value of Peter's house?
Answers
Answer:
Value of House = $98000
Step-by-step explanation:
The sum of all of the assets and liabilities + value of the house = $101,800
Value of House + $900 - $3400 + $16900 - $16300 + $4500 + $1200 = $101,800
=> Value of House + $3800 = $101,800
=> Value of House = $101,800 - $3800
=> Value of House = $98000
The current value of Peter's house will be $98000.
A table is given which shows Peter's net worth and assets are shown as positive numbers, and liabilities are shown as negative numbers.
We have to find out the current value of Peter's house if , Peter's net worth is $101,800.
What will be the resulting value ; 35 - 10 - 5 + 10 = ?
The resulting value will be 30.
As per the question ;
The sum of all of the assets and liabilities plus value of the house is equal to $101,800.
Assume value of house = x
⇒ x + $900 - $3400 + $16900 - $16300 + $4500 + $1200 = $101,800
⇒ x + $3800 = $101,800
⇒ x = $101,800 - $3800
⇒ x = $98000
Thus , the current value of Peter's house will be $98000.
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What is slope? Provide two examples of realistic situations where slope manifests itself. In each example make sure to state what units the slope is expressed in.
Answers
Answer:
1. A slope is a surface of which one end or side is at a higher level than another; a rising or falling surface.
"he slithered helplessly down the slope"
Some real life examples of slope include: in building roads one must figure out how steep the road will be. skiers/snowboarders need to consider the slopes of hills in order to judge the dangers, speeds, etc. when constructing wheelchair ramps, slope is a major consideration.
Juan uses 1/5 liter to water a small plant and uses 1/2 liter to water a large plant now he has 2/10 liters left in a pitcher how much did Juan have in the beginning
Answers
Answer:
9/10
Hope this helps :)
What would be the mass of 234 ml of water??
Answers
Answer:
0.233298 kg is the mass of 234 ml of water
Step-by-step explanation:
Mathematically,
mass = density * volume
henry, to get the mass of that volume, we shall need to multiply it by the density of water.
The density of water is 997 kg/m3
To achieve consistency in units, we shall convert 234 ml to m3
Mathematically 1ml = 1 * 10^-6 m^3
Thus, 234 ml = 234 * 10^-6 m^3
Therefore the mass of water will be = 234 * 10^-6 * 997 = 0.233298 kg
f(x) = 2(x − 5), find f(8).
Answers
Answer:
6
Step-by-step explanation:
f(8)=2(8-5)
f(8)=2(3)
f(8)=6
have a great day
A jacket usually sells for $57.00. If the jacket is 40% off, and sales tax is 5%, what is the total price of the jacket, including tax?
Answers
Answer: $35.91
Step-by-step explanation:
Since the jacket is 40% off, we multiply the original price by 60% to get the price remaining. ($57 x 0.6 = $34.20)
Then, we multiply the new price by 105% (includes the 5% sales tax) to get the total price. ($34.20 x 1.05 = $35.91)
Yesterday, two friends went into a bank to open savings accounts. Megan started by putting $80 in her account, and she will deposit an additional $15 each week. Noah made no initial deposit, but he will add $25 more each week. In a few weeks, the friends will have the same account balance.
Answers
Answer:
8 weeks
Step-by-step explanation:
We are to find the number of weeks that they will have the same account balance.
Let the number of weeks be x.
Megan started by putting $80 in her account, and she will deposit an additional $15 each week. This means after x weeks, she will have:
80 + 15x
Noah made no initial deposit, but he will add $25 more each week. After x weeks, he will have:
25x
To find the number of weeks for their amounts to be the same, we equate their amounts to one another:
80 + 15x = 25x
Collexting like terms and solving for x:
80 = 25x - 15x
80 = 10x
=> x = 80 / 10 = 8 weeks
After 8 weeks, the money in their accounts will be the same.
For what value of b, would the equation 34(12x−9)+b4=5−3(2−3x) have infinitely many solutions? Enter the numerical value only
Answers
Answer:
23/16
Step-by-step explanation:
i looked it up on a website and got this question right on my test
The given expression is a linear function and has a unique solution.
Given,
For what value of b, would the equation 3/4(12x−9)+b/4=5−3(2−3x) have infinitely many solutions?
Functions is the relationship between sets of values. e g y=f(x), for every value of x there is its exists in set of y. x is the independent variable while Y is the dependent variable.
Here,
3/4(12x−9)+b/4=5−3(2−3x)
12x - 27 / 4 + b / 4 = 5 - 6 + 9x
12x - 9x = -1 + 27/4 - b / 4
3x = 23 - b / 4
Here the expression is a linear function of x, so the expression has a unique solution not infinitely many solutions.
Thus, the given expression is a linear function and has a unique solution.
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Find the percent of decrease from 84 gallons to 45 gallons. Round to the nearest tenth of a percent if necessary.
Answers
Answer:
0.5
Step-by-step explanation:
45/84=0.5357142857142857
1-0.5357142857142857=0.4642857142857143
Answer:
= 46%
Step-by-step explanation:
● Original = 84 gallons
● New = 45 gallons
● Decrease = 84 - 45 = 39 gallons
If 84 gallons = 100%
What about 39 gallons = ?
= (39 x 100) ÷ 84
= 3900 ÷ 84
= 46.42
= 46%
Express 0.82 as a percent
Answers
Answer:
82%
Step-by-step explanation:
an object is translated by (x + 4, y - 2). If one point in the image has the coordinates (5 , -3), what would be the coordinates of it’s pre-image?
Answers
Answer: (9,-5)
Step-by-step explanation:
(5+4,-3-2)= (9,-5)
A company is designing a new cylindrical water bottle. The volume of the bottle will be 230 cm cubed 3. The height of the water bottle is 7.3 cm. What is the radius of the water bottle? Use 3.14 for π.
Answers
Answer:
Step-by-step explanation:
I don't say you have to mark my ans as brainliest but if it has really helped you plz don't forget to thank me...
I need help with question 5 please
Answers
Answer:
4
Step-by-step explanation:
2, 4, 4, 5, 6, 8, 8, 9, 10, 12
Median: 7
Lower Quartile: 2, 4, 4, 5, 6
So, 4
The value of V-16 is not-4 because
O A. 1624
B. (-16) 2-4
C. 42 16
O D. (-4)2 = -16
Answers
Answer:
b plz mrk brainly
Step-by-step explanation:
Find the solution to x^2+2=27
Answers
Answer:
x = 5
Step-by-step explanation:
x^2 +2 = 27
x^2 = 27 - 2
x^2 = 25
x = [tex]\sqrt{25\\\\}[/tex]
x = 5
Answer: x equals 5
Step-by-step explanation:
27 minus 2 is 25, the square root of 25 is five.
What is the value of x
Answers
Answer: 0
Step-by-step explanation:
Evaluate for x =64
64 − 64
Answer:
x=29
Step-by-step explanation:
The first triangle:the unknown angle is 58°
180°-58=122
122+2x=180
2x=180-122
2x=58
x=58/2=29°
Dale made $273 dollars for 13 hours of work. At the same rate how much would he make for 8 hours of work.
Answers
Answer:
$168
Step-by-step explanation:
273 dollars for 13 hours of work is a unit rate of 273/13=21 dollars per hour. Multiplying this by 8 hours of work, you get 168 dollars. Hope this helps!