Answers
Answer:
0.083 or 8.3%
Step-by-step explanation:
Since there are initially four cards, each card has a 25% (or 1/4) chance of being chosen. So the 8 card would have a 1/4 chance of being chosen.
Since the first card was chosen and not put back into the deck, the percent chance of each chosen card changes from 25% to about 33.3% (or 1/3) chance of being chosen. So the 8 card would now have a 1/3 chance of being chosen.
Since the question is asking what the percentage of choosing an 8 twice without replacing it is, you would multiply each of the percent chances that 8 card has to be chosen. In this case, multiply 1/4 and 1/3
This will result in about 0.083. To change to a percentage, multiply by 100 and the answer will end up at 8.3%.
Answer: 0%
Step-by-step explanation:
If you pick a 8 the first time, and you don't put it back, then there is no chance to get a 8 the second time. However, fi you pick a number other than 8 the first time, and pick 8 the second time, you didn't get 8 both times. Hope this helps!
Related Questions
Please help me out. Ik its late but whoevers up rn please help me out this is needed by 12pm tomorrow. Thank You!!
Answers
Answer:
B 30°
Step-by-step explanation:
come now.
the sum of all angles around one point on one side of a line is 180°.
why ?
because any line with a point can be seen as a diameter of a circle with that point as center.
and every side of the line represents then a half-circle.
and a half-circle stands for 360/2 = 180°.
so,
180 = (2x + 70) + (x - 10) = 2x + 70 + x - 10 = 3x + 60
120 = 3x
x = 40
2x + 70 = 2×40 + 70 = 80 + 70 = 150°
x - 10 = 40 - 10 = 30°
180 = Q + (2x + 70) = Q + 150
30° = Q
4) If a person runs 2 3/4 miles in 1/2 hour, compute the unit rate as a complex fraction, ____ miles per hour which is equivalent to ____ miles per hour.
Answers
Answer:5 1/2 for the first box and second I think
Step-by-step explanation:
HELP!!! LOOK AT IMAGE
Answers
Answer: 100%
Step-by-step explanation:
PLEASE HELP QUICK!!!
In which step does the first mistake appear
(23.8 / 2 + 12) + 14.5 / 2
step 1 (23.8 / 14) + 14.5 /
2 step 2 1.7 + 14.5 / 2
step 3 1.7 + 7.25
step 4 8.95
Answers
Answer:
The mistake appears in step 1 where 23.8 is divided by 14 instead of 2.
The correct first step should be: (23.8 / 2) + 12 + (14.5 / 2)
Hope this helps!
Answer:
A
Step-by-step explanation:
The error arises in the equation "(23.8 / 2 + 12)", where the division is incomplete. A slick fix is to rephrase it as "(23.8 / 2) + 12" to ensure accurate calculation, with the division taking precedence over addition, resulting in a cooler computation!
Jamal performed an experiment flipping a coin. He did 10 trials and then his arm got tired. He recorded his results in the table. Based on the experimental probability, Jamal predicted that the number of times the coin lands heads up will always be greater than the number of times it lands tails up. What is the error in his prediction?
A 3-column table with 2 rows. Column 1 is labeled Coin with entries heads, tails. Column 2 is labeled Observed frequency with entries 8, 2. Column 3 is labeled Experimental probability with entries 0.80, 0.20.
He should have performed fewer trials before comparing them to the theoretical probability.
He did not need to perform the experiment to compare theoretical and experimental probabilities.
He should have subtracted the theoretical probability from the experimental probability.
He did not perform enough trials to compare the theoretical and experimental probabilities.
100 points
Answers
Answer: He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
He only gave two entries for the experimental probability.He would need atleast four or three.
Hope this helped you!
Answer: He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
He only gave two entries for the experimental probability.He would need atleast four or three.
Hope this helped you!
Help please if u can explain why that would also help but u don’t have to
Answers
Answer:
D. It's like multiplying a fraction by -1: it multiplies only the numerator
It’s B because multiplying any number by one equals the other number so therefore, 6 x -1 (meaning the negative sign before the parentheses) equals -6 and -7 x -1 equals 7 because a negative plus a negative equals a positive.
Integer rules are key here!!
Hope this helped.
does anyone know how to find the length and the width with only the volume(250) and a height(8)?
Answers
Answer: lxWxh= v
Step-by-step explanation:
To find the length of a rectangular prism, there should be two missing sides. Since we don't have length or width, you find what times 8 times another number equals 250.
Third-, fourth-, and fifth-grade students collected clothing items to be sent to 3 different clothing donation centers. The third-grade students collected 55 items, and the fourth-grade students collected 45 items. Each clothing donation center was given 75 items. Write and solve an equation to find how many items the fifth-grade students collected
1.A The fifth-grade students collected _ An equation that can be used is 55 +45 = 75 X
2.B The fifth-grade students collected _ An equation that can be used is (55+45+X) ÷=75
3.C The fifth-grade students collected _ An equation that can be used is (55 +45) x 3 = 75 + X
4.D The fifth-grade students collected
enter your response here items. An equation that can be used is 55 +45+X=75
Answers
Answer: B) The answer is 125
Step-by-step explanation:
when u solve the equation you will get 125.
Answer:
the answer is B
Step-by-step explanation:
A car dealership has various combinations of vehicles in their car lot, all of which have an equally likely chance of being selected.
Use the list of options below to determine the probability of each vehicle being selected. The problem is based on independent events.
Answers
Answer:
Step-by-step explanation:
The probabilities of each of the following combination in question is 1/8, 1/6, 1/8, and 1/12 respectively.
The car dealership offers combinations of car parameters. The possible values of each car parameter are :
Vehicle = [Sedan, Suv, Truck]
Exterior color = [Red, Blue, Silver, Black]
Interior Material = [Leather, Cloth]
1. The probability of selecting a Silver Vehicle with a Cloth Interior is 1/8.
P(Silver, Cloth) = P(Exterior = Silver, Interior=Cloth)
= P(Exterior = Silver) * P(Interior=Cloth)
= (1/Total exterior options) * (1/Total interior options)
2. The probability of selecting an SUV or Truck with a Red or Black color and Cloth Interior is 1/6.
P(SUV|Truck, Red|Black, Cloth)
= P(Vehicle=Suv|Truck, Exterior = Red|Black, Interior=Cloth)
= P(Vehicle=Suv|Truck) * P(Exterior = Red|Black) * P(Interior=Cloth)
= (2/Total vehicle options) * (2/Total exterior options) * (1/Total interior options)
3. The probability of selecting a Sedan of a non-Red color and Cloth Interior is 1/8.
P(Sedan, !Red, Cloth)
= P(Vehicle=Sedan, Exterior != Red, Interior=Cloth)
= P(Vehicle=Sedan) * (1- P(Exterior = Red)) * P(Interior=Cloth)
4. The probability of selecting a Truck of a Blue or Black color and Leather Interior is 1/12.
P(Truck, Blue|Black, Leather)
= P(Vehicle=Truck, ExteriorBlue|Black, Interior=Leather)
= P(Vehicle=Truck) * P(Exterior = Blue|Black)) * P(Interior=Leather)
state the vertices, foci, and asymptotes of the hyperbola with the equation
20x^2-25y^2=100
PLEASE SHOW YOUR WORK SO I CAN UDERSTAND!!!
Answers
(x^2)/(5) - (y^2)/(4) = 1
From this equation, we can see that the hyperbola has a horizontal transverse axis, since the x^2 term is positive and is divided by a smaller number than the y^2 term. Therefore, the center of the hyperbola is (0,0).
Using the standard form of the hyperbola, we can find the values of a and b:
a^2 = 5, so a = sqrt(5)
b^2 = 4, so b = 2
Now we can find the vertices, foci, and asymptotes:
Vertices:
The vertices are located at (±a,0), so the vertices are at (-sqrt(5),0) and (sqrt(5),0).
Foci:
The foci are located at (±c,0), where c = sqrt(a^2 + b^2). Plugging in our values of a and b, we get:
c = sqrt(5+4) = sqrt(9) = 3
So the foci are at (-3,0) and (3,0).
Asymptotes:
The equations of the asymptotes are y = ±(b/a)x, so the equations of the asymptotes are:
y = ±(2/sqrt(5))x
Therefore, the vertices are (-sqrt(5),0) and (sqrt(5),0), the foci are (-3,0) and (3,0), and the equations of the asymptotes are y = ±(2/sqrt(5))x.
A restaurant sells steaks for $23 per steak. How much money does the restaurant make if they sell 420 steaks.
Answers
$23x 420 Steaks is $9660
Answer:
$9,660
Step-by-step explanation:
$23 x $420 = $9,660
Solve and show each step
Answers
Answer:
4th option
Step-by-step explanation:
Because the fourth option is the only option where the y-intercept is 15, which refers to the base price, and also 10x shows that every hour adds 10 dollars to the 15 dollar base price, and as the question says, it is higher than the 7.5 dollars an hour in the table above.
If this helped, please consider picking this answer as the Brainliest Answer. Thank you!
please help i would really appreciate it
Answers
Answer:
The length of the missing side is 21 cm.
Step-by-step explanation:
[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
[tex]a^{2}[/tex] + [tex]28^{2}[/tex] = [tex]35^{2}[/tex]
[tex]a^{2}[/tex] + 784 = 1225
[tex]a^{2}[/tex] + 784 - 784 = 1225 - 784
[tex]a^{2}[/tex] = 441
[tex]\sqrt{a^{2} }[/tex] = [tex]\sqrt{441}[/tex]
a = 21
Helping in the name of Jesus.
Jackie plans to plans to paint the finger nails of 8 friends. She finishes painting 4 of her friends nails. If each friend has ten nails to paint, how many nailes does Jackie still need to paint? Write and solve an equation to show how many more nails Jackie needs to paint.
Answers
Answer:40
Step-by-step explanation:
each friend has 10 nails and there is a total of 8, 8 x 10 80 - 40 = 40 in other words Jackie has to paint 40 finger nails
If Jackie has already painted 4 friends' nails, she has painted 4 x 10 = 40 nails.
To find out how many more nails Jackie needs to paint, we can subtract the number of nails she has already painted from the total number of nails she needs to paint:
80 - 40 = 40
So Jackie still needs to paint 40 nails.
Please help! :( Was sick for a week now dying.
The tree diagram below shows all of the possible outcomes for flipping three coins.
A tree diagram has outcomes (H, H, H), (H, H, T), (H, T, H), (H, T, T), (T, H, H), (T, H, T), (T, T, H), (T, T, T).
What is the probability of one of the coins landing on tails and two of them landing on heads?
1/4
3/8
1/2 This is not correct I know because I got it wrong onn edge.
3/4
Answers
Reason: Amount of them landing on one tails and two heads / Whole amount of the tree diagram , My explanation sucks sorry
There’s 8 possibilities and 3 of them have two H and one T (HHT, THH, and HTH)
FIRST ANSWER=BRAINLIEST ANSWER :)))))
Answers
First you need to draw in a diagonal across the "floor" of the room connecting 2 vertices. You should draw the diagonal so that it's going in the same direction as the spider's thread; the diagonal is drawn in the wrong way if it intersects across the spider's thread.
Then you need to mark in the measures. The figures that are parallel to each other are congruent, so they have equal measures. For example, the rectangle that is parallel to the 6 by 8 one has the same measures as that one. Also, all of the walls of the room are rectangles. That means that the opposite sides of each rectangle have equal measures.
Because the diagonal divides the rectangle into 2 right triangles, you can then use the Pythagorean theorem to find the length of the diagonal that you drew in. (12 squared + 8 squared = length of the diagonal squared, and solving gives you the length of the diagonal as the square root of 208)
Finally, you can see that there is another right triangle formed with the diagonal that includes the spider's thread. With the length of the diagonal and the length of 6 ft, you can use the Pythagorean theorem to find the length of the spider's thread. (6 squared + the square root of 208 squared = length of the thread squared) The length of the spider's thread is the square root of 244, which is 15.6 ft rounded to the tenth's place.
HELP ME PLEASE I DON'T UNDERSTAND !!!!!!!!!!!!!!!!!!!!!!
Answers
so the answer should be 3,4,7
Polygon JKLM is drawn with vertices J(−4, −4), K(−4, −6), L(−1, −6), M(−1, −4). Determine the image coordinates of K′ if the preimage is reflected across y = −7.
K′(−4, −4)
K′(−4, −5)
K′(−4, 6)
K′(−4, −8)
Answers
Answer: -4,6
Step-by-step explanation:
To reflect a point across a horizontal line, we keep the x-coordinate the same, but negate the y-coordinate of the point. In this case, the line of reflection is y = -7. Therefore, to find the image coordinate of K′, we negate the y-coordinate of K and add 3 (since -7 - (-6) = -1):
K′(-4, -6 - (-7) + 3) = K′(-4, 4)
So the correct answer is K′(-4, 4)
A standard car tire has a diameter of 18 inches. If you drive 2 miles to school, how many times does your car tire rotate during the drive? (1 mile = 5,280 ft)
Answers
Answer:
Step-by-step explanation:
1. Convert the 2 miles into ft. 2*5280=10560.
2. Convert the 18 inches to ft. 18/12=1.5ft
3. Divide. 10560/1.5=7040
Hopefully that was corect! :)
Answer my recent unanswered pre-algebra questions for brainliest!
Answers
Answer:
Only if you award me brainliest
Ok I will answer your recent unanswered pre-algebra questions.
But one thing…. Marking my answer as the BRAINLIEST. Is a must!
pt.2 Can somebody do this, please?!
Answers
Answer:
7 ft
Step-by-step explanation:
15 ft - 8 ft = 7 ft
See my explanation on your other post asking a similar question to this one!
Answer:
9ft
Step-by-step explanation:
14 of the longest length
subtracted by 5 becuase they are parallel of each other including the missing one.
14-5=9
8th grade math i mark as brainliest
Answers
1/6*1/6
1/36
So you would have a 1/36 chance to roll a 4 then a 1
ANSWER QUICK PLS
look at the trapezium below, work out the size of angle
angle tuv
angle vwt
give your answer in degrees
Answers
Answer:
Step-by-step explanation:
The value of angle ADC is 157.4°
How do you find angle In a trapezium?
The sum of angles in a trapezoid-like other quadrilateral is 360°. So in a trapezoid ABCD, ∠A+∠B+∠C+∠D = 360°. Two angles on the same side are supplementary, that is the sum of the angles of two adjacent sides is equal to 180°. The length of the mid-segment is equal to 1/2 the sum of the bases.
Therefore angle A + angle D = 180
using trigonometry,
cos A = 12/13
A = cos^-1(0.923)
A = 22.63°
therefore angle D = 180-22.63
= 157.4° ( 1 dp)
learn more about angle in a trapezium from
brainly.com/question/30179943
Answer:
see below
Step-by-step explanation:
TUV = 180-107 = 73
VWT = 180-58 = 22
ayo 30 pts
What is the distance between the two points shown below?
6 units
0 units
4 units
8 units
Answers
Answer:
The distance between these two points is 4 units.
Answer:
4 units
Step-by-step explanation:
There are only 4 units of distance since in the y-axis, the first point is found on 0 and the second point is found on 4.
Suppose you borrow money for a year at a simple interest rate of 7.2%. You pay $86.40 in interest. How much have you borrowed?
Answers
Answer:
$1200
Step-by-step explanation:
You want to know the amount borrowed at 7.2% if the simple interest for one year is $86.40.
InterestThe interest formula is ...
I = Prt
where P is the amount borrowed, r is the interest rate, and t is the number of years.
ApplicationUsing the given values, we have ...
86.40 = P·0.072·1
P = 86.40/0.072 . . . . . . divide by the coefficient of P
P = 1200
You have borrowed $1200.
Answer: 1200
Step-by-step explanation: Linear equation. 7.2x = 100(86.40). then divide by 7.2 on each side. x=1200
ASAP I WILL GIVE BRAINLIEST
A composite figure is shown.
Which of the following represents the total area of the figure?
10.663 in2
24.413 in2
28.448 in2
34.335 in2
Answers
5.1975 is the area of the small triangle
4.725 is the area of the larger triangle
Add them together,
24.4125 or simplified, 24.413
If Jason ran 1.8 miles and Josh ran
3,200 yards, who ran the farthest?
(1 mile = 5,280 feet)
Answers
Answer: Josh ran the farthest.
Step-by-step explanation:
1 mile = 5,280 feet
1.8 miles = 1.8 x 5,280 feet = 9,504 feet
1 yard = 3 feet
9,504 feet = 9,504 / 3 yards = 3,168 yards
So Jason ran 3,168 yards.
Since 3,200 yards is greater than 3,168 yards, Josh ran the farthest.
Answer:
Josh ran further
Step-by-step explanation:
I converted Josh's yards to miles.
[tex]\frac{3200yards}{1 }[/tex] · [tex]\frac{3 feet}{1 yard}[/tex] · [tex]\frac{1 mile}{5280feet}[/tex] cancel out the words that you see on the top and on the bottom
[tex]\frac{3200}{1}[/tex] · [tex]\frac{3}{1}[/tex] [tex]\frac{1mile}{5280}[/tex] Now simplify by multiplying
[tex]\frac{9600 miles}{5280}[/tex] = 1.8181... This is a repeating number
1.8181... is larger than 1.8
Helping in the name of Jesus.
Evelyn deposited $23,750 in a savings account that earns 5.3% simple interest. Evelyn has not made any deposits or withdrawals since she opened the account. Approximately how many years have passed since Evelyn opened the account if her latest balance is $28,785?
Answers
pls help quick 50 points
32x+5x
Answers
Answer: 37x
Step-by-step explanation:
because both terms have an x after them, they are "like terms", so you can add the coefficients (numbers in front of x)
32+5=37
so your answer is 37x because you keep the term
ex. 5x+6y are different terms so you can't add them, 5 is in terms of x and 6 is in terms of y.
It's like say i have 5 times a certain numbers of apples
and 6 times a certain number of oranges
and they want to know how many apples you have
you can't say 30 times that number of apples. It just is 5 times that number of apples. you can't combine
G−11 = 27
Simplify your answer
WILL MARK BRAINLIST
Answers
Answer:
G=38
Step-by-step explanation:
27 +11 = 38
I hope this helps!