There are 10 balls with different sizes. You take 4 random balls out of the 10 balls each time and then put them back. What is the probability that you will take the smallest ball at least once during 4 tries?
The probability of taking the smallest ball at least once during 4 tries can be calculated as 1 minus the probability of not taking the smallest ball in any of the 4 tries. Since each try is independent and the probability of not taking the smallest ball in a single try is 9/10, the probability of not taking it in all 4 tries is (9/10) * (9/10) * (9/10) * (9/10) = 0.6561. Therefore, the probability of taking the smallest ball at least once during 4 tries is 1 - 0.6561 = 0.3439, or approximately 34.39%.
To find the probability of not taking the smallest ball in any of the 4 tries, we need to calculate the probability of not selecting the smallest ball in each try and then multiply them together.
In each try, there are 9 balls remaining that are not the smallest ball, out of a total of 10 balls. Therefore, the probability of not taking the smallest ball in a single try is 9/10.
Since the tries are independent events, we can multiply the probabilities together to find the probability of not taking the smallest ball in all 4 tries.
After calculating this probability, we subtract it from 1 to obtain the probability of taking the smallest ball at least once during the 4 tries.
In this case, the probability of not taking the smallest ball in all 4 tries is (9/10) * (9/10) * (9/10) * (9/10) = 0.6561.
Finally, subtracting this value from 1 gives us the probability of taking the smallest ball at least once, which is 1 - 0.6561 = 0.3439, or approximately 34.39%.
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Please answer ASAP I will brainlist
Answer:
Step-by-step explanation:
To interchange Row 1 and Row 2 of the given matrix, the indicated row operation can be performed as follows:
Original matrix:
8 -2 1 7
2
9
4 5
1
4
-4 9
Interchanging Row 1 and Row 2:
2
8 -2 1 7
9
4 5
1
4
-4 9
The transformed matrix after interchanging Row 1 and Row 2 is:
2
8 -2 1 7
9
4 5
1
4
-4 9
A total of 27 students are in your class. There are nine more males than females.
How many females are in your class?
what is 34.6285 rounded to the nearest hundreds
Answer:
34.63
Step-by-step explanation:
The 2 in 34.6285 marks the hundredths place
We can round by seeing what number is to the right of it which is 8.
Since 8 is larger than 5, we round up by 1.
Thus, 34.63 is our answer
The answer is:
34.63
Work/explanation:
Rounding to the nearest hundredth means rounding to 2 decimal places (DP).
So we have 2 decimal places, and the 3rd one matters too because it will determine the value of the 2nd DP.
The third DP is 8. Since it's greater than 5, then the value of the 2nd DP will be rounded up. I will add 1 to it.
Remember that we round up when the digit that we're rounding to is followed by another digit that is greater than or equal to 5.
So we round :
[tex]\bf{34.6285 =\!=\!\!\! > 34.63}[/tex]
Therefore, 34.6286 rounded to the nearest hundredth is 34.63.Determine the surface area and volume
Answer:
Volume : 300
Surface Area : 280
Step-by-step explanation:
Volume : 6*5*10
Surface Area : 50+50+30+30+60+60
Lola has 37 in Saint in her pocket. Then she finds these coins in the couch
Answer:
?
Step-by-step explanation:
?
Two roll of electric wire contain 80m 20cm and 86m 56cm of wire respectively. what is the total length of electric wire of both the roll? Express the Result in metres
The total length of electric wire in both rolls is 166.76 meters.
To find the total length of electric wire in both rolls, we need to add the lengths of the two rolls together.
The first roll contains 80m 20cm of wire. We can convert this to meters by noting that 1 meter is equal to 100 centimeters. Therefore, the length of the first roll is:
80m 20cm = 80 meters + (20 centimeters / 100) meters
= 80 meters + 0.20 meters
= 80.20 meters
Similarly, the second roll contains 86m 56cm of wire. Converting this to meters:
86m 56cm = 86 meters + (56 centimeters / 100) meters
= 86 meters + 0.56 meters
= 86.56 meters
To find the total length, we add the lengths of both rolls:
Total length = 80.20 meters + 86.56 meters
= 166.76 meters
Therefore, the total length of electric wire in both rolls is 166.76 meters.
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Select the incorrect phrases in the paragraph.
Given:
is a right angle
is a right angle
Prove:
Four lines M A, M B, M C, and M D that starts from point M are drawn such that angle A M C equals 90 degrees, and angle B M D equals 90 degrees.
1. Angle A M C is a right angle. It leads to angle A M B and angle B M C are complementary 2. Angle B M D is a right angle. It leads to angle B M C and angle C M D are complementary. 1 and 2 lead to Angle A M B which approximately equals angle C M D.
The proof is converted to paragraph form.
Which parts of the paragraph proof are incorrect?
is a right angleis given.
is a right angleis also given.Since
is a right angle,
and
are complementary.Since
is a right angle,
and
are complementary.By the Congruent Complements Theorem,
.
The incorrect phrases in the paragraph are as follows:
Since ∠AMC is a right angle, ∠BMC and ∠CMD are complementary.
Since ∠BMD is a right angle, ∠AMB and ∠BMC are complementary.
How to identify the wrong phrasesTo identify the wrong phrases, note that a right angle is an angle that forms 90° when inclined to another line. Also, complementary angles are those whose sum is 90°.
A close look at the angles will show that ∠BMD is a right angle but ∠BMC and ∠CMD are complementary. Also, the following is correct: ∠AMC is a right angle, ∠AMB and ∠BMC are complementary.
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I need help with 36 please I don’t understand
Answer:
36)
[tex]f(x) = \frac{1}{x + 3} - 1[/tex]
The equation of the function is y = 1/(x + 3) - 1
How to determine the equation of the transformationFrom the question, we have the following parameters that can be used in our computation:
The reciprocal function shifted down one unit and left three units
The equation of the reciprocal function is represented as
y = 1/x
When shifted down one unit, we have
y = (1/x) - 1
When shifted left three units, we have
y = 1/(x + 3) - 1
Hence, the equation of the function is y = 1/(x + 3) - 1
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Find the measurement of each angle in a triangle. You need to provide me 3 different measurement of angles. please help !!
Answer:
x=30 degrees, 2x=60 degrees, 3x=90 degrees
Step-by-step explanation:
in a triangle the sum of angles is 180 so
x+2x+3x=180
6x=180
x=180/6
x=30
so the angle x is 30 degrees, the angle that is 2x is 60 degrees and the angle the angle 3x is 90
Jessica and Barry squeezed oranges for juice. Jessica squeezed 23
5
cups of juice. Barry made 1
4
cup less than Jessica. Barry estimated that Jessica squeezed about 21
2
cups of juice.
Which is the best estimate for the amount of juice Barry made?
Jessica squeezed 235 cups of juice, Barry made 221 cups of juice, and the best estimate for the amount of juice Barry made is 198 cups.
Jessica and Barry squeezed oranges for juice. Jessica squeezed 235 cups of juice. Barry made 14 cups less than Jessica. Barry estimated that Jessica squeezed about 212 cups of juice. The best estimate for the amount of juice Barry made is 198 cups.
There are different ways to approach this problem, but one possible method is to use subtraction to find out how much juice Barry actually made, and then compare it to the estimated amount. If Jessica squeezed 235 cups of juice and Barry made 14 cups less, then Barry made 235 - 14 = 221 cups of juice.
This is the exact amount of juice that Barry made, but it may not be a convenient answer if we are looking for an estimate that is close to Barry's estimate of 212 cups of juice. One way to get such an estimate is to round 221 to the nearest ten or hundred. For example, if we round to the nearest ten, we get 220, which is only 8 cups away from Barry's estimate.
Alternatively, if we round to the nearest hundred, we get 200, which is only 12 cups away from Barry's estimate. Therefore, the best estimate for the amount of juice Barry made is 198 cups, which is obtained by rounding down to the nearest ten. This estimate is only 14 cups away from Barry's estimate, and it is also easy to compute mentally.
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which of the following will form the composite function G(F(x)) shown below G(F(x)) = 4√x
Question 4(Multiple Choice Worth 5 points)
(01.02 MC)
A manufacturing firm employs workers to monitor and maintain specialized machines making small metal parts. Which economic questions does this statement
answer?
O How much to produce? How much to charge?
How to produce? How much to produce?
Owhat to produce? For whom to produce?
Owhat to produce? How to produce?
The correct answer is: O How to produce? How much to produce?
The statement "A manufacturing firm employs workers to monitor and maintain specialized machines making small metal parts" answers the economic questions of "How to produce?" and "How much to produce?"
How to produce: The statement indicates that the manufacturing firm has chosen to employ workers to monitor and maintain specialized machines. This suggests that they have made a decision regarding the production process and how they will go about manufacturing the small metal parts.
How much to produce: The fact that the manufacturing firm has employed workers to monitor and maintain the machines implies that they have determined a level of production that is deemed appropriate or necessary. The number of workers and the capacity of the machines can influence the quantity of small metal parts produced.
Therefore, the correct answer is: O How to produce? How much to produce?
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Please answer ASAP I will brainlist
Answer:
f(0) = 1
f(1) = 21.1
Step-by-step explanation:
Do as the problem says:
[tex]f(0)=4^{2.2(0)}=4^0=1\\f(1)=4^{2.2(1)}=4^{2.2}\approx21.1[/tex]
what is the equation of this line?
The calculated equation of the line is y = -2x + 3
How to calculate the equation of the lineFrom the question, we have the following parameters that can be used in our computation:
The graph
Where, we have
(1, 1) and (0, 3)
The equation of the line is calculated as
y = mx + c
Where
c = y when x = 0
So, we have
y = mx + 3
Using the points, we have
m + 3 = 1
So, we have
m = -2
This means that
y = -2x + 3
Hence, the equation of the line is y = -2x + 3
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Solve each equation.
13x+91-30
OX= 7
Ox= 1,-19
O no solution
Ox=7,-13
DONE
Intro
12x+11--13
O no solution
Ox=-7
Ox=-14, 12
OX=-7,6
DONE
ODL
IX+21+4-11
O
X = 5
no solution
Ox=5,-9
Ox=7,-11
DONE
The solutions to the absolute value equations are:
1. b. x = 1, -19. 2. a. no solution. 3. c. x = 5, -9.
How to Solve Absolute Value Equations?1. |3x+9| = 30
To solve this equation, we isolate the absolute value expression by considering two cases: 3x+9 = 30 and -(3x+9) = 30. Solving both equations, we find x = 7 and x = -19, respectively. Thus, the answer is b. x = 1, -19.
2. |2x+11| = -13
An absolute value cannot be negative, so there is no solution to this equation. The answer is a. no solution.
3. |x + 2| + 4 = 11
To solve this equation, we isolate the absolute value expression by subtracting 4 from both sides, resulting in |x + 2| = 7. Considering two cases: x + 2 = 7 and -(x + 2) = 7, we solve for x and find x = 5 and x = -9, respectively. Thus, the answer is c. x = 5, -9.
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What is the slope of a line that is parallel to the line whose equation is ax+by=c ? A. ab B. −ba C. −ab D. ba
PLSPLSS PLSSMSL HELP ME
Answer:
1. x = 18
2. x = 31
Step-by-step explanation:
1. Angles in a quadrilateral sum to 360°.
360 -(60 +130 +70) = 360 -260 = 100
So, x +82 = 100. x = 100 -82 = 18
2. Angles in a triangle sum to 180°. 180 -(29 +75) = 180 -104 = 76.
So, -17 +3x = 76. 3x = 93. x = 93/3 = 31
b. Based on the values in the table, what effect does changing the
radius seem to have on the surface area of the sphere? In general,
how does multiplying the radius of a sphere by a factor of x affect the
surface area of the sphere?
Answer:
Based on the values in the table, it can be observed that changing the radius of the sphere has a direct effect on the surface area of the sphere. As the radius increases, the surface area also increases.
Step-by-step explanation:
In general, multiplying the radius of a sphere by a factor of x will result in the surface area of the sphere being multiplied by a factor of x^2. This is because the surface area of a sphere is given by the formula:
Surface Area = 4πr^2
When the radius is multiplied by a factor of x, the new radius becomes xr. Substituting this into the formula, we get:
New Surface Area = 4π(xr)^2
= 4πx^2r^2
= x^2(4πr^2)
Therefore, the surface area of the sphere is multiplied by a factor of x^2 when the radius is multiplied by a factor of x. This relationship shows that the surface area increases at a faster rate than the radius.
Which of the following functions is graphed below?
Answer: C
Step-by-step explanation:
the x - 2 means go right 2
the +3 means go up 3
You pick a card at random.
2 3 4 5
What is P(divisor of 32)?
Find the area of the shaded portion if we know the outer circle has a diameter of 4 m and the inner circle has a diameter of 1.5 m.
A. 1.8 m²
B. 43.2 m²
C. 12.6 m²
D. 10.8 m²
Answer:
π(2^2 - .75^2) = 55π/16 m² = 10.8 m²
D is the correct answer.
WILL GIVE 100 points A deli wraps its cylindrical containers of hot food items with plastic wrap. The containers have a diameter of 3.5 inches and a height of 4 inches. What is the minimum amount of plastic wrap needed to completely wrap 6 containers? Round your answer to the nearest tenth and approximate using π = 3.14.
44.0 in2
63.2 in2
379.2 in2
505.5 in2
Answer:
379.2 in^2
Step-by-step explanation:
Each cylinder's side area is pi *d * h = 43.98 in^2
you need six : =263.89 in^2
each ned of the cylinder area = pi r^2 = 9.621 in^2
and you have 12 ends for 115.45 in^2
For total : 379.3 in^2 (slight difference due to the value of pi used and rounding)
 Randomly selecting a diamond or 3
The probability of randomly selecting a diamond or a 3 is
The probability of randomly selecting either a diamond or a 3 from the bag is 100%.
Random selection refers to the process of selecting elements from a group with equal probability of selection.
Probability is a measure of the likelihood of an event occurring, which is usually expressed as a fraction or a decimal.
When it comes to random selection of a diamond or 3, we can use probability to determine the likelihood of either event occurring.
For instance, suppose we have a bag containing 10 numbered balls: 5 of them are diamonds and 5 are threes.
To find the probability of randomly selecting a diamond, we divide the number of diamonds by the total number of balls: P(Diamond) = Number of diamonds/ Total number of balls = 5/10 = 0.5 or 50%
This means that the probability of randomly selecting a diamond from the bag is 50%.
To find the probability of selecting either a diamond or a 3, we add the probability of selecting a diamond to the probability of selecting a 3, since the events are mutually exclusive: P(Diamond or 3) = P(Diamond) + P(3) = 5/10 + 5/10 = 1
This means that the probability of randomly selecting either a diamond or a 3 from the bag is 100%.
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which f(x) function is this?
Answer:
[tex]f(x) = - 3 {x}^{2} - 6x - 1[/tex]
Rearrange the equation so u is the independent variable
-12u+13=8w-3
w=_______
the answer is
w = -3/2 u + 2
What is the distance between the points (1,3)
and (–2,7)?
=================================================
Explanation
I'll use the distance formula.
[tex](x_1,y_1) = (1,3) \text{ and } (x_2, y_2) = (-2,7)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(1-(-2))^2 + (3-7)^2}\\\\d = \sqrt{(1+2)^2 + (3-7)^2}\\\\d = \sqrt{(3)^2 + (-4)^2}\\\\d = \sqrt{9 + 16}\\\\d = \sqrt{25}\\\\d = 5\\\\[/tex]
The distance is 5 units.
Answer:
5
Step-by-step explanation:
What is the solution to the equation below In X=3.1
Answer:
the solution would be X=3 as 3.1 represents 3×1.
Please answer ASAP I will brainlist
Answer:
X intercepts: (-2, 0), (2, 0)
Y intercept: (0, 4)
Edited because I forgot to put in point form earlier. Depends on whether your teacher wants it in point form. If not, ignore the 0s.
Step-by-step explanation:
X intercepts are the points where a line crosses the x axis. Y intercepts are the points where a line crosses the y axis.
Answer:
A. x-intercept: (-2,0), (2,0)
A. y-intercept: (0,4)
Step-by-step explanation:
If you want to find the x and y-intercept of a line, you need to know its equation. But don't worry, it's not as hard as it sounds. Here are some tips to help you out.
One type of equation is y = mx + c, where m is the slope and c is the y-intercept. This means that the line crosses the y-axis at c. To find the x-intercept, just plug in y = 0 and solve for x. You'll get x = -c/m. Easy peasy!
For example, if the equation is y = 2x + 4, then the y-intercept is 4 and the x-intercept is -2.
Another type of equation is ax + by + c = 0, where a, b and c are constants. To find the x-intercept, plug in y = 0 and solve for x. You'll get x = -c/a. To find the y-intercept, plug in x = 0 and solve for y. You'll get y = -c/b. Piece of cake!
For example, if the equation is 3x + 2y - 6 = 0, then the x-intercept is 2 and the y-intercept is -3.
Now you know how to find the x and y-intercept of a line from its equation.Let us understand the calculations to find the x and y intercept, through the steps in the below table.
4x+y20
find the value of y when x =6
Answer:
y= -4
Step-by-step explanation:
To find the value of y when x = 6, we can substitute x = 6 into the equation and solve for y:
4(6) + y = 20
24 + y = 20
y = 20 - 24
y = -4
Therefore, when x = 6, y is equal to -4.