Help please if u can explain why that would also help but u don’t have to
Answer:
D. It's like multiplying a fraction by -1: it multiplies only the numerator
8th grade math i mark as brainliest
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!
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.
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)
More Math about Slope
thx
(for questions 3 and 4, i know that one of them is 0 and the other is unidentified, but i don't know which one is which)
(and the 5th screenshot has the answer choices if needed)
happy easter-eve
Answer: 3 is 0 and 4 is unidentified
Step-by-step explanation:
The horizontal line has a slope of zero, think of it as you can walk on it or not. Since four has all X's as eight that creates a vertical slope which cannot be walked on.
Thanks for the opportunity to help you! :)
1. m/slope=6/1 or 6. Use the first two points for the formula y₂-y₁/x₂-x₁. B
2.m=-4 or -12/3. Use the slope formula and substitute the points. G
3. m=zero. I
4.m=undefined. A
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
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!
The last two questions on a quiz were a
true or false question and a multiple choice
question with 4 answer choices. Each ques-
tion had only one right answer. What is the
probability of guessing ______
(a) both questions correctly
(b) both questions incorrectly
(c) both correctly from the remaining
options, knowing that a and b on the
multiple choice were incorrect
Write the probability as a reduced fraction, decimal rounded to the hundreds place, and a whole percent
Answer:
(a) The probability of guessing both questions correctly is (1/2) * (1/4) = 1/8, or 0.125, or 12.5%.
(b) The probability of guessing both questions incorrectly is (1/2) * (3/4) = 3/8, or 0.375, or 37.5%.
(c) The probability of guessing both questions correctly from the remaining options is (1/3) * (1/3) = 1/9, or approximately 0.111, or 11.1%.
Hope this helps!
Answer:
(a) The probability of guessing both questions correctly is (1/2) * (1/4) = 1/8, or 0.125, or 12.5%.
(b) The probability of guessing both questions incorrectly is (1/2) * (3/4) = 3/8, or 0.375, or 37.5%.
(c) The probability of guessing both questions correctly from the remaining options is (1/3) * (1/3) = 1/9, or approximately 0.111, or 11.1%.
Hope this helps!
PLS PLS HELPPP!!! LOOK AT IMAGEEE
Answer:
50%
Step-by-step explanation:
Three out of the six choices are odd. (1,2,3,4,5,6)
[tex]\frac{3}{6}[/tex] = .5 Multiply .5 buy 100% to get the percentage.
To multiply by 100% move the decimal two places to the right
50%
Helping in the name of Jesus.
Answer: 50%
Step-by-step explanation:
There are 3 odd numbers on a 6 sided dice (1,3 and5)
so you have a 3 out of 6 chance of rolling odd
P(odd)=3/6
convert to decimal first
P(odd)=.5 then move decimal over 2 times to the right to convert to %
P(odd)=50%
How do you these math question???
x=4
Step-by-step explanation:
if x equals 4 the whole equation satisfys
The image of a trapezoid is shown.
What is the area of the trapezoid?
17.4 m2
20.3 m2
40.6 m2
69.6 m2
Answer my recent unanswered pre-algebra questions for brainliest!
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!
does anyone know how to find the length and the width with only the volume(250) and a height(8)?
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.
What is the value of the expression 4x − y when x = 3 and y = 1? (5 points) 1 6 11 12
Answer:
Option 11 is correct.
Step-by-step explanation:
The values of the expression 4x − y when x = 3 and y = 1 will be 11.
Answer:11
Step-by-step explanation: 4*3-1=12-1=11
Can someone help answer? I'm gonna give brainliest for that (only if first).
Answer:
15
Step-by-step explanation:
15 is the least common denominator since 3 x 5 = 15
IM SORRY BUT PLS HELPPP!!!
Answer:
Step-by-step explanation:
Only 5 is a factor because only 5 can go into 5
1/3
Answer:
1/3
Step-by-step explanation:
5 is the only factor out of the three and there is 3 cards total so it would be 1/3
How do you rewrite fractional exponents?
A as a square root
B as a negative
C reciproacate
Answer:
A as a square root
Step-by-Step:
Fractional exponents are roots and nothing else.
Help pls Much appreciated
Answer:156.7
Step-by-step explanation:700-543.3
Can someobody help me solve this question? brainly + ASAPP!!!!!!!
Answer:
Step-by-step explanation:
All the sides:
178+100+200+220+160+320+178+360
=1716 cm
The requried surface area of the given prism is 1716 square centimeters.
What is the surface area?The surface area is the total area that covers the surface of a three-dimensional object. It is calculated by adding up the area of all the faces or surfaces of the object. For example, the surface area of a cube can be calculated by adding up the areas of all six faces.
Here,
The surface area of the given prism is given as:
Surface area = 5*20 + 10*20 +20*8 + 11*20+2[5*10+16*8]+16*20+20*18
Surface area = 1716 square centimeters
Thus, the requried surface area of the given prism is 1716 square centimeters.
Learn more about the surface area here:
https://brainly.com/question/28016184
#SPJ2
The base of a right triangle is 2 inches less than 4 times its height, h. To create a new triangle, the length of the base is increased by 7 inches, and the height is increased by 5 inches. Which function represents the area, f(h), of the new triangle?
Answer:
see below
Step-by-step explanation:
Base b = 4h-2
new Base = b+7 =4h+5
new Height = h+5
area = base * height *1/2 = 1/2 * (4h+5)*(h+5)
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
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!
Determine the line of reflection.
Reflection across x = 4
Reflection across y = 4
Reflection across the x-axis
Reflection across the y-axis
Answer:
The correct answer:
Reflexion across x = 4
Answer:
The correct answer:
Reflexion across x = 4
Estimate: 12 8/9 - 4 2/11
A) 9
B) 10
C) 8
D) 7
(Comparing Data MC)
The data given represents the height of basketball players, in inches, on two different girls' teams.
Compare the data and use the correct measure of center to determine which team typically has the tallest players. Explain your answer.
Group of answer choices
The Allstars, with a mean of about 67.1 inches
The Champs, with a mean of about 66.4 inches
The Allstars, with a median of about 68 inches
The Champs, with a median of about 67 inches
The Data:
Answer:The Allstars, with 67.1333...
the list represents a student's grades on tests in their math class. 59, 65, 70, 80, 98, 71, 45, 79, 77, 85 find the mean and interpret its meaning as it relates to the student's overall work in the course.
A. The mean is 72.9 and shows that the student has an average grade and understanding of the subject but struggles at times.
B. The mean is 74 and shows that the student has a poor grade and struggles understanding the subject.
C. The mean is 80.6 and shows that the student has an average grade and understanding of the subject.
D. The mean is 98 and shows that the student has a high average and fully understands the subject.
Answer:
Step-by-step explanation:
the average score, calculated by dividing the sum of scores by the number of examinees. Median: the middle raw score of the distribution; 50 percent of the obtained raw scores are higher and 50 percent are lower than the median.
Solve and show each step
Answer:
a
Step-by-step explanation:
An art teacher has 28 students in her first-period class and 24 students in her second-period class. If almost 30% of the students in these classes are boys, about how many boys are in her first two classes?
please helppppppppppppppppppppppppppppppp
Answer:
.30 × 52 = 15.6 = 16 boys in the two classes
HELPP PLEASEEEE!! LOOK AT THE IMAGE
Answer:
Step-by-step explanation:
Factors(7 and 10) are numbers that multiply to make a number(70) How many of those numbers are a factor of 7. Only 7 can go into 70 evenly
Which is only 1 out of 4 of the numbers
So your fraction is
p(factor of 70) 1/4.
George is visiting Gettysburg, Pennsylvania. He would like to take a taxi around town to see all the old buildings and various landmarks. The local taxi has an initial charge of $2.50 and then a fee of $0.85 per mile. He has twenty dollars to spend on this taxi ride. Write an expression in terms of m that represents the maximum miles he will be able to travel in the taxi.
Answer: is this all the information we have?
Step-by-step explanation:
Answer:
2.5 + 0.85m = 20
Step-by-step explanation:
let m be the total miles travelled by george
initial payment of 2.5 dollars is fixed
he would need to pay 0.85 dollars for every mile
HELP PLS 60 POINTS
A scatter plot is shown on the coordinate plane. scatter plot with points plotted at 1 comma 7, 1 comma 9, 2 comma 5, 3 comma 6, 3 comma 7, 5 comma 7, 6 comma 5, 7 comma 3, 9 comma 1, and 10 comma 1 Which two points would a line of fit go through to best fit the data? (3, 6) and (7, 3) (3, 7) and (9, 1) (1, 9) and (5, 7) (1, 7) and (2, 5)
Pοints (1, 9) and (10, 1) wοuld be a line οf fit.
What is a scatter plοt?
A scatter plοt is a graph that displays values fοr twο variables as οrdered pairs οf data pοints, with οne variable οn the hοrizοntal axis (x-axis) and the οther variable οn the vertical axis (y-axis).
Tο determine which twο pοints a line οf fit wοuld gο thrοugh tο best fit the data in a scatter plοt, we need tο lοοk fοr the pοints that are clοsest tο the general trend οr directiοn οf the pοints. In this scatter plοt, it appears that the general trend is a dοwnward slοping line.
The twο pοints that wοuld best fit this trend are (1, 9) and (10, 1), which are lοcated at the twο ends οf the scatter plοt and appear tο be the farthest frοm the general trend. Therefοre, the answer is:
(1, 9) and (10, 1)
Hence, pοints (1, 9) and (10, 1) wοuld be a line οf fit.
To learn more about the scatter plot, visit:
brainly.com/question/29231735
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please help i would really appreciate it
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.
Gusto's Department Store offers gift-wrapping services to their customers, and the manager at Gusto's needs to order more ribbon. Small gift boxes use 21 inches of ribbon, while large ones use 30 inches of ribbon. The manager at Gusto's expects to sell 200 small boxes and 220 large boxes this month. If the ribbon they use is sold by the yard, how many yards of ribbon should the manager order?
Answer: 300 yards of ribbon
Step-by-step explanation:
First of all, because we are working with inches, and need to find an answer in yards, we need to know how many inches are in a yard.
There are 36 inches in a yard.
Next, we need to multiply 21 inches by 200 small boxes, and 30 inches by 220 large boxes. We do this to find out how many inches of ribbon Gusto's needs for each size box.
The products are are 4,200 small boxes, and 6,600 large boxes.
The products (the answers to the multiplication problems) them need to be added together. We do this because we need to find how much total ribbon the manager of Gusto's needs to order.
The sum (the answer to the addition problem) of 4,200 + 6,600 = 10,800.
Lastly, we divide 10,800 by 36 (remember there are 36 inches in a yard). We do this to find the number of total yards of ribbon the manager will need to order for the month.
The quotient (the answer to the division problem) is 300.
Our answer is 300 yards of ribbon.
I hope that helps you out!