Answer:
0.80589
Step-by-step explanation:
So all of the numbers of correct answers less than 4 are 0,1,2,3
We need to calculate the probability for each separately and then add them together.
To find the probability we have to first find the combination. We know that there’s n=8 trials and that p=0.3. So 1-0.3 gives us 0.7.
The combination formula is: ! / (!(−)!)
So the n would always =8, and the r would be 0,1,2,3. So you would have to calculate it for 0,1,2,3 Separately. This can be done by hand or you can use a simple combinations calculator online.
For 0;
The combination is 1,
1 x 0.3^0 x 0.7^8-0 =
0.057648
For 1;
The combination is 8,
8 x 0.3^1 x 0.7^8-1 =
0.19765
For 2;
The combination is 28
28 x 0.3^2 x 0.7^8-2 =
0.296475
For 3;
The combination is 56
56 x 0.3^3 x 0.7^8-3 =
0.254122
All that’s left is to add these four numbers;
0.057647 + 0.19765 + 0.296475 + 0.254122 = 0.80589
Using the principle of binomial probability, the probability of correct answers fewer than 4 is : 0.8059
Recall the binomial probability formula :
P(x = x) = nCx * p^x * q^(n-x)
Where :
n = number of trials x < 4 p = probability of success = 0.3q = 1 - p = 1 - 0.3 = 0.7P(x < 4) = P(x = 0) + P(x = 1) + P(x = 2) + P(x = 3)
Using a binomial probability calculator :
P(x = 0) = 0.0576P(x = 1) = 0.19765P(x = 2) = 0.29648P(x = 3) = 0.25412Therefore,
P(x < 4) = (0.0576+0.19765+0.2965+0.25412) = 0.8059Learn more : https://brainly.com/question/12474772
Two fair dice are rolled at the same time.
What is the probability that the total score is 6.
[3x-2]÷4=2x-8
Can someone help
Answer:
Step-by-step explanation:
[3x-2]÷4=2x-8
3x-2 = 4·(2x-8)
3x-2 = 8x-32
-2 = 5x-32
30 = 5x
x = 6
Answer:
(3x-2)/4= 2x-8 x=6
Step-by-step explanation:
(3x-2)/4 times 4= 2x-8
Multiply both sides by 4
3x-2/4 times 4= 2x times 4-8 time 4
Simplify
3x= 8x = 8x-30-8x
Subtract 8x from both sides
3x-8x=8x-30-8x
Simplify
-5x=-30
Divide both sides by -5
-5x/-5 = -30/-5
Simplify so you get x=6
ABC is a straight line.
빙
A
в с
The length of AB is four times the length of BC.
AC = 75 cm.
Work out the length of AB.
mi
i
answe ac
Step-by-step explanation:because 827.0837
Which of the following numbers is irrational? -9/5 , sqrt (5) , 7/3 , sqrt (9)
I WILL mark brainliest!
Answer:
[tex]\large\boxed { \ ANS = \sqrt{5} }[/tex]
Step-by-step explanation:
Irrational numbers are numbers that cannot be written as simple fractions. All the numbers listed above except for [tex]\sqrt{5}[/tex] cannot be written as fractions.
• [tex]\frac{7}{3}[/tex] is already a fraction
• [tex]\frac{-9}{5}[/tex] is also already a fraction
• [tex]\sqrt{9}[/tex] is 3 and 3 can be written as [tex]\frac{3}{1}[/tex]
• [tex]\sqrt{5}[/tex] is an irrational algebraic number and cannot be written as a simple fraction since it is equal to
2.23606797749978969640917366873127623544061835961152572427089..which continues on and on.
I hope this helped you understand this topic!
PLEASE HELP ME What is the vertex for the function below
F(x)=-3(x+2)^2-5
A. (-3,-5)
B.(-2,-5)
C. (2,-5)
D. (2,5)
Answer:
Its B
Step-by-step explanation:
give five equivalent fractions for 4/7
Answer:
8/14, 12/21, 16/28, 20/35, 40/70
Step-by-step explanation:
PLEASE HELP I WILL OFFER ALOT, A manufacturer of ski clothing makes ski pants and ski jackets. The profit on a pair of ski pants is $3 and on a jacket is $7. Both pants and jackets require the work of sewing operators and cutters. There are 60 minutes of sewing operator time and 48 minutes of cutter time available. It takes 8 minutes to sew one pair of ski pants and 4 minutes to sew one jacket. Cutters take 4 minutes on pants and 8 minutes on a jacket. The manufacturer wants to make a minimum of 4 ski pants and 2 ski jackets. Let x represent the number of ski pants. Let y represent the number of ski jackets. x > 4 y > 2 8x + 4y 96 4x + 8y 72 Find the maximum profit and the amount of pants and jackets to maximize the profit.
the manufacturer must make (blank) ski pants and (blank) ski jackets for a maximum profit of $(blank)
Answer:
79 hhj cfgghh hjjjjhjbhh
If the table coordinates for triangle XYZ and it's images using two transformations use 1 grid on both axes to represent 1 unit for the interval from -3 to 9
Answer:
I'm not good at math
Step-by-step explanation:
What is the slope y+2=1/4(x-3)
Answer:
[tex]m=\frac{1}{4}[/tex]
Step-by-step explanation:
Given
[tex]y+2=\frac{1}{4}(x-3)[/tex]
Required
Find the slope
[tex]y+2=\frac{1}{4}(x-3)[/tex]
Subtract 2 from both sides
[tex]y+2-2=\frac{1}{4}(x-3) - 2[/tex]
[tex]y=\frac{1}{4}(x-3) - 2[/tex]
Open bracket
[tex]y=\frac{1}{4}x-\frac{1}{4}*3 - 2[/tex]
[tex]y=\frac{1}{4}x-\frac{3}{4} - 2[/tex]
Take LCM
[tex]y=\frac{1}{4}x+\frac{-3 - 8}{4}[/tex]
[tex]y=\frac{1}{4}x+\frac{-11}{4}[/tex]
[tex]y=\frac{1}{4}x-\frac{11}{4}[/tex]
An equation has the form:
[tex]y = mx + b[/tex]
Where
[tex]m = slope[/tex]
By comparing: [tex]y = mx + b[/tex] and [tex]y=\frac{1}{4}x-\frac{11}{4}[/tex]
[tex]m=\frac{1}{4}[/tex]
So, the slope is 1/4
Find the quotient.
2,593 dived 4
Answer:
648.25Step-by-step explanation:
Please help me with this):
Answer:
It would be 11/3
Step-by-step explanation:
10 oranges cost Php120, how much 35
oranges cost?
Answer:
420
Step-by-step explanation:
120 x 3 = 360
360 + 60 = 420
Answer: Php420
Step-by-step explanation:
cost of 10 oranges = Php120
cost of 1 orange = 120/10 = Php12
therefore, cost of 35 oranges = 12 x 35 = Php420
Hope it helped u,
pls mark as the brainliest - Ayaan707 for help :) -
^_^
The scale for a blueprintis 1 cm: 50 in. What is the lengthon the blueprint for a bathroom wall that is 150 inches long
Answer:
The answer should be 3cm
Step-by-step explanation:
The way you worded it was kind of confusing so pardon me if the answer isnt the correct answer you were looking for. But I suppose that if 1 cm is 50 in. than 150 in. would be 3 cm. Because 50 + 50 + 50 = 150. And if it is 1 cm. per 50 in. than that would be 3 cm. I hope this answered your question! And if not.. again, im sorry.
HELLP MATH PLEASEEEE
What is the product?
Answer:
the answer is the first one [3 -12 15 -21]
Step-by-step explanation:
Because 3 times 1 = 3, 3 times -4 = -12, 3 times 5=15, 3 times 7 = -21
because they are in order to get a negative one of them have to be a negative if they both of them where negative it would be positive.
Can you mark me brainliest
Convert the rate of 3 oz/d to an equivalent rate measured in lb/wk. round your answer to the nearest tenth
Answer: 1.3 pounds per week
Step-by-step explanation:
1 lb | 3 oz | 7 days 21
————————————— = ——- = 1.3 lbs/wk
16 oz | 1 day | 1 week 16
How do you make 14% into a fraction?
Answer:
7/50
Step-by-step explanation:
9. Which of the following groups of numbers are all prime numbers? O A.3. 11, 23, 31 OB.7. 17. 29. 49 OC. 2,3,5, 9 D.2, 5, 15, 19
Answer:
The answer would be A.
Hopes this you. Have a good day!!
Answer:
Prime numbers are those that cannot be divided by another number (other than themselves and 1). In other words, prime numbers have factors of themselves and 1.
For example, 3 is a prime number because its only factors are 3 and 1.
6 is not a prime number because it can be factored to 3*2.
Therefore, the correct answer is a. 3,11,23,31
Hope it helps
Please me as brainliest
Thank you
please help me with this
Answer:
A) 2481.156[tex]\pi[/tex] cm³
Step-by-step explanation:
The formula for volume of a sphere is: [tex]\frac{4}{3} \pi r^{3}[/tex]. In this case, the radius is 12.3. 12.3 cubed is: 1860.867. 1860.867 x 4 is 7443.468. 7443.468 divided by 3 is 2481.156. Since we haven't multiplied by pi yet, the answer would be 2481.156[tex]\pi[/tex].
Hope it helps!
Please help ASAP What is the exact volume of the cone?
O 40cm
O80/3cm
O160/3cm
O 160cm
Answer:
Step-by-step explanation:
Volume of cone = [tex]\frac{1}{3}\pi r^{2}h\\[/tex]
[tex]= \frac{1}{3}*\pi * 4 * 4 * 10\\\\=\frac{160}{3}\pi cm^{3}[/tex]
Answer:
c
Step-by-step explanation:
help me pls i need help asap
Answer:
no babe
Step-by-step explanation:
Andy's little brother has a toy box that
contains 2 blue race cars, 1 green race car,
and 1 red race car. Andy removes 2 race cars
from the toy box without looking. If Andy
removes a blue car first and does not replace
it, which best represents the sample space
for the cars Andy removes?
Answer:
c.
Step-by-step explanation:
The solution is Option C.
Sample space is set A = { blue , blue } , { blue , green } , { blue , red }
What is union and intersection of sets?The union of two sets A and B is the set of all those elements which are either in A or in B, i.e. A ∪ B, whereas the intersection of two sets A and B is the set of all elements which are common. The intersection of these two sets is denoted by A ∩ B
The union of two sets is a new set that contains all of the elements that are in at least one of the two sets
The intersection of two sets is a new set that contains all of the elements that are in both sets
Given data ,
Let the sample space be represented as set A
Now , the equation will be
The number of blue cars = 2 blue cars
The number of green cars = 1 green car
The number of red cars = 1 red car
So , the total number of cars = 2 + 1 + 1 = 4 cars
Now , Andy removes 2 race cars from the toy box without looking
Let the first removed car be a blue car
So , the second car can have any value including a blue , green or white
And , the sample space is given by set A
Set A = { blue , blue } , { blue , green } , { blue , red }
Hence , the set is { blue , blue } , { blue , green } , { blue , red }
To learn more about sets click :
https://brainly.com/question/28278437
#SPJ2
what is 5+5 will mark brainlist
Answer:
10, 5+5=10
correct answer would be 10
an expression to show the sum of g and h reduced by 11
Answer:
(g + h) - 11
Step-by-step explanation:
Sum of g and h : g + h
Sum of g and h reduced by 11: (g + h) - 11
help please, how do I answer these types of questions?
SIGNIFICANCE OF OPERATION RESEARCH IN MODERN MANAGEMENT
Decimal equivalent of 143%
Answer:
1.43 as a decimal
Step-by-step explanation:
%143 = 1.43
A clothing outlet had a sale on jackets. A jacket priced at $233 was on sale, selling for 70% (use 0.7) of its price. How much did customers have to pay for the jacket (ignore taxes)?
Answer:
Jackets cost $69.90.
Step-by-step explanation:
1. Multiply $233 by 70% (.70 as a decimal) to find how much less the jacket is.
2. Subtract that answer from the cost of the jacket.
233 * .70 = 163.1
233.00
163.10
$69.90
You can also multiply $233 by 30% and not have to subtract because your answer would BE the cost (70% + 30% = 100%).
233 * .30 = 69.90 $69.90
What is the value of x in the equation below?
-3-(-8)-(-2) = x
O -13
-9
7
Answer:
7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
calculation will give 7
what scale factor will dilate circle see to the size of Circle D
Answer:
choice #6) 2/3
What is the decimal multiplier to decrease by 39%
Answer:
100%-39%=61% which is 0.61
Step-by-step explanation: