Answer:
A.) 0.7647 b.) 13/ 16 C.) 0.9412 D.) 8.743 * 10^-10
Step-by-step explanation:
A)
Number of cards per suit = 13
Nunber of suits = 4
Probability = required outcome / Total possible outcomes
P(1) = probability of picking a card from a certain suit
P(1) = 13 / 52
Hence, probability that 2nd card will be from a suit different from the first :
Total possible outcomes = (52 - 1) = 51
Required outcomes = (13 * 3) = 39
= 39 / 51
= 0.7647
B.)
First toss being head :
Required outcome = H = 1
Total possible outcomes = T or H = 2
P(H) = 1/ 2
For 5 tosses
Total possible outcomes = 2^n = 2^5 = 32
Exactly 2 heads = 10
P(exactly 2 heads) = 10/32 = 5/16
1/2 + 5/16 = (8 + 5) / 16 = 13/16
c)
1 - P(both top and bottom are hearts)
Number of hearts = 13 ; number of cards = 52
P(both are hearts) = 13/52 * 12/51 = 0.05882
1 - 0.05882
= 0.94117
= 0.9412
d)
Either all marbles are red OR all marbles are green OR all marbles are blue
Total number of marbles = (20 + 20 + 20) = 60
Probability that all 15 marbles are of a certain color :
(20/60 * 19/59 * 18/58 * 17/57 * 16/56 * 15/55 * 14/54 * 13/53 * 12/52 * 11/51 * 10/50 * 9/49 * 8/48 * 7/47 * 6/46)
(2.9146E−10) + (2.9146E−10) + (2.9146E−10)
= 8.7438E−10
= 8.743 * 10^-10
2x2 + 8x - 7 = 0
How to solve
x =(8-√120)/4=2-1/2√ 30 = -0.739
Step-by-step explanation: calculator
Answer:
2 x 2 +8x -7= 0
4+8x-7=0
-3+8x=0
8x=0+3
8x/8=3/8
x=3/8
x=0.375
Step-by-step explanation:
1.Multiply 2x2 to get 4
2.Calculate the difference between 4-7
3.Move the constant to the right side
4.Divide both sides of the equation by 8
The number is halfway between 1/5 and 14/15
Answer:
17/30
Explanation:
m a t h
PS:
Can I have brainliest?
ANSWER:
4
___
15
STEP BY STEP:
4)
The 8th grade students at two middle schools are raising money by washing cars.
Eastern School has already raised $625 and charges $4.50 per car. West School
charges $6.00 per car and has already raised $475. Which of the following equations
can be used to find c, the number of cars each school needs to wash so that the total
amount raised is the same for both schools?
A. 625c +4.5 = 475c + 6
B. 4.50 +625 = 6c +475
C. 625c +6=4750 +4.5
D. 4,5c 1475 = 6c 4625
Answer:
B is the only answer
Step-by-step explanation:
all other answers plug the amount of money (c) onto the whole amount that they've made, multplying in this manner would give a bigger number. B is the only excusable equation since plugging the (c) onto the West school would bring the total closer to the final amount.
Suppose that 6 out of the 19 doctors in a small hospital are General Practitioners, 9 out of the 19 are under the age of 45, and 3 are both General Practitioners and under the age of 45. What is the probability that you are randomly assigned a General Practitioner or a doctor under the age of 45
Answer:
12/19
Step-by-step explanation:
We have these events
A = Doctors are general practitioners
B = doctors are under the age of 45
P(A) = 6/19
P(B) = 9/19
P(A n B) = 3/19
Then the probability of being assigned a general practitioner under age 45
P(AuB)
= P(A) + P(B) - P(A n B)
= 6/19 + 9/19 - 3/19
= 12/19
So 12/19 is the probability of getting a general practitioner under age 45.
please help!!! i need an answer on this
Answer:
15/30
Step-by-step explanation:
To get from 10 to 30 you have to muliply by 3.
So you do that to the 5 too.
5 * 3 = 15
3.2 - 5.1n - 3n + 5= n +8.2 can someone tell me what goes in the blank
PLEASE HELP (this is all my points I’ll mark brainlist anything please help)
Answer:
I believe that it would be A+C+S but is there more to the question?
Step-by-step explanation:
omg
Step-by-step explanation:
Jackson has twice as many cards as his friends Alex and Chase combined. Alex has 55 Cards in his collection. Jackson Has 200 cards in his collection. How many cards does Chase have in his collection?
Answer:
45
Step-by-step explanation:
200 divided by 2 = 100-55=45
Answer:
45
Step-by-step explanation:
200-55=145
Since Jackson has twice as many as them combined, he would have 45.
Izabella answered 43 out of 50 questions correctly on her STAAR test. What percentage did Izabella answer correctly?
Answer:
Step-by-step explanation:
86 percent i hole this helps!
Twins Isaac and Isaiah were just born. Isaac weighs 6 pounds 2 ounces and Isaiah weighs 5 pounds 4 ounces. How many ounces do Isaac and Isaiah weigh together?
PLS HELP WILL GIVE BRAINLIEST ANSWER
Answer:
56°
Step-by-step explanation:
First, the measure of angle GHE is equal to DFH. This means that you can set 98-6x=63-x, which becomes 5x=35 so x=7. Substitute 7 for x and you'll get DFH =63-7, which is 56.
Please help I need this to pass. Please
Answer:
Step-by-step explanation:
1. Longest side = hypontenuse shorter sides = legs
2. x=-2
3. Something in data that differs significanttly from the other data.
how are you not knnow this
2) -2, checked
3) a data point on a graph or in a set of results that is very much bigger or smaller than the next nearest data point.
i have no idea on the fist one, sorry, but hope the rest helped
Mary is making a birthday cake to surprise her mom. She needs 3 1/2 cups of flour, but she only has 1/3 cup. How much more flour does she need?
Answer:
3 1/6 cups more
Step-by-step explanation:
Answer:
3 1/2 = 7/2 (write as a mixed number)
7/2 - 1/3 = ?( you need more flour, so subtract what you have from what you need. to subtract you need to find the least common denominator)
21/6 - 2/6
19/6 cups of flour is what you need.
or 3 1/6 cup if it needs to be converted back into a mixed fraction
Step-by-step explanation:
Which is the range of this function?
{(-5, 7), (-3, 10), (0, 2), (4, 6), (9, 0)}
Answer:
{y | y = -9, -3, 0, 5, 7}
Step-by-step explanation:
i think thats the anwer
Please help and get points!
Answer:
D
Step-by-step explanation:
Item 1
One February day, the low temperature in St. Paul, MN was -17°F. Over a period of three hours, the temperature rose 5 °F per hour. After three hours, what was the temperature?
°F
Translate this phrase into an algebraic expression.
Seven more than the product of 22 and Vanessa's savings
Use the variable v to represent Vanessa's savings.
Answer:
22
Step-by-step explanation:
The algebraic expression is 22v + 7.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Vanessa's savings = v
The expression that represents the phrase.
"Seven more than the product of 22 and Vanessa's savings."
= 22v + 7
Thus,
The algebraic expression is 22v + 7.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ2
Simplify {n-1-[n-1-(0 - 1)]
Anwser would be -1
Hope this helps
Help pls explain and how you got it
Step-by-step explanation:
just minus 100 out of the percentage
for example 20% is 100 - 20 = 80
hi can someone help i have to simplify fractions HELP please it should be easy!!!!
Answer:
18/27=2/3
6/12=1/2
20/10=2/1
10/12=5/6
2/8=1/4
15/30=1/2
8/12=2/3
6/36=1/6
15/20=3/4
30/50=3/5
21/28=3/4
15/24=5/8
Step-by-step explanation:
If a bus travels at 48MPH how long will it take to be able to travel 60 miles
PLEASEEEE I WWILLL GIVE BRAINLEIST 6b. In Renton the sales tax is 9%. What is the total cost including tax on a $20 purchase?
x2 - 4x + y2 - 21 = 0 The equation in standard form is
divide 4,052 divided by 61
Answer:
R u that lazy to not type it in a calculator
Step-by-step explanation:
But it is 66.4262295082
Pls make me buy brainiest
I am once again asking for your help with solving this problem.
Answer:
llll, Vl, Vll
Step-by-step explanation:
NEEDED ASAP Just do numbers 1-6, 22-24, 25,26
work NEEDS to be shown and uh um I will give brainliest
Answer:
0.625 5/6=0.6250.222 (repeating) 2/9=0.222 0.432 (repeating) 16/37=0.432 -0.111 (repeating) -1/9=-0.11110.45 27/50=0.45-0.75 -3/4=-0.7522. -2 21/50 .42=42/100=21/50
23. -4/25 .16=16/100=4/25
24. -13/20 .65=65/100=13/20
25. 31/50= 0.62
26. 7/15= 0.466 (repeating)
I hope this what you wanted:
find the length of the unknown side. round to the nearest tenth
i need help ;;
System of Equations: Perimeter
The perimeer of a rectangular dog pen is 126 feet. The pen's length, I, is 9 feet less than 3 times its width, w. What system of linear equations can be used to determine the dimensions, in feet, of the rectangular dog pen?
Answer:
Concept: Perimeter
We are told the perimeter is 126 We need to model it given that l= length and w= width [tex]126 =((l - 9)( 3 \times w))[/tex]Rate brainlistExpress 7.000,000,000 in scientific notation
Answer: 7 × 10^9
Step-by-step explanation:
10 to the 9th power is 1,000,000,000
7 x 1,000,000,000 = 7,000,000,000
Hope that helped!
Answer:
7x10*9
Step-by-step explanation:
NEED HELP FASTT 100 points for step by step answers
Answer:
please refer to the above attachment.