Answer:
[tex] \displaystyle \frac{1}{28} [/tex]
Step-by-step explanation:
we are given 8 songs
2 are rock. 4 are reggae, 2 are country
we want to figure out the probability of getting both reggae songs
notice that, they aren't replacing thus it's an independent probability
recall that,
[tex] \displaystyle \rm P(A \: \text{and} \: B) = P(A) \times P(B \mid A)[/tex]
P(A) represents the chance of getting our subject first time and P(B|A) represents the chance of getting the same subject second time
let's figure out P(A)
we have 2 reggae songs
and total 8 songs
therefore
[tex] \displaystyle\rm P(A) = \frac{2}{8} = \frac{1}{4} [/tex]
let's figure out P(B|A)
since we took a reggae song before now we have only a reggae song
and total 8-1=7
therefore
[tex] \displaystyle \rm P(B\mid A) = \frac{1}{7} [/tex]
Altogether
[tex] \displaystyle \rm P(A \: \text{and} \: B) = \frac{1}{4} \times \frac{1}{7} [/tex]
simplify multiplication:
[tex] \displaystyle \rm P(A \: \text{and} \: B) = \frac{1}{28} [/tex]
And we are done!
Someone pls give me the answer?
Answer:
c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
I Need Help Please!! (Geometry)
Answer:
3. 58°
4. 64°
5. 180°
Step-by-step explanation:
not completely sure bout number 5 but I think it's 180
Using the variable n for the term, describe the sequence.
Answer:
3 + 5n
Step-by-step explanation:
This is an arithmetic sequence.
First term = a = 8
Common difference = d =Second term - first term
= 13 - 8
= 5
Nth term = a + (n- 1)*d
= 8 + (n -1) * 5
= 8 + n*5 - 1 *5
= 8 + 5n - 5
= 8 - 5 + 5n
= 3 + 5n
find the value of given expression
=》
[tex] \sqrt[3]{343} \times \sqrt{1} [/tex]
Step-by-step explanation:
The answer will be 7 I hope this help you
Help me with this please
Answer: (17 , 5)
18 + 16 / 2 = 17
0 + 10 / 2 = 5
Answer:
Step-by-step explanation:
F = (18, 0 ) as ( x1 , y1)
G = (16 , 10) as (x2, y2 )
mid = (x1+x2) / 2 ,( y1 + y2) / 2
mid = (18+16)/2 , (0+10)/2
mid = 34/2 , 10 /2
mid =( 17, 5)
I need help I dont understand this
Answer:
13
Step-by-step explanation:
A cone sits inside a cylinder, as shown. They share the same height and radius. What is the volume of the cylinder not taken up by the cone? Use 3.14 for p.
A
75.36 in.3
B
150.72 in.3
C
226.08 in.3
D
301.44 in.3
Answer:
Step-by-step explanation:
Volume of cylinder = πr²h
Volume of cone = πr²h/3
Volume of cylinder is not used by cone = ⅔πr²h = ⅔(3.14)(3^2)(8) = 150.72 sq in
what's the value of given expression
[tex] \sqrt{33 \times 3 + 1} [/tex]
if same earns $2 more, he’ll have $24. How much does he have to start out with?
Answer:2
Step-by-step explanation:
Answer: 22
Step-by-step explanation:
With which set of information can you construct a unique triangle?
Α.
the measurements of all the angles
B.
the lengths of two sides
C.
the measurements of two angles
D.
the lengths of all the sides
E.
the measurement of one angle
Answer:
I hope this helps
Step-by-step explanation:
Ben paid $45 for an old guitar he cleaned the guitar, then resold it after marking the price 15% he used 36% of the money he got for the the guitar to buy books how much money did ben spend on books?
Answer:it’s $18.63
Step-by-step explanation:
($45+.15($45)).36
Answer:
18.63
Step-by-step explanation:
[tex]\left \{ {{y=2} \atop {x=2}} \right. 17.49 +?=18.63[/tex]
A fair dice has 6 sides numbered 1 to 6. After it is rolled, 5 of the numbers can be seen. What is the probability that one of these numbers is a 3
Answer:
[tex] \frac{5}{6} [/tex]
Step-by-step explanation:
Out of those 5 sides, we need to be able to see a 3 from a 6 sided dice.
The total will always be your demoninator and since we was looking at sides, we just need a side that has a 3.
SELECT THE CORRECT COMPARISON
PLEASE HELP!! (will give brainlyest
Answer:
C. The typical value is greater in set . The spread is greater in set A.
Step-by-step explanation:
Set A data is all over the place meanwhile set b data is clumped in one spot. This means Set A data has its data more spread. Then the value is greater in set B since the arrow is on 8.5 while in set A it is on 4.
Someone help and please make sure it’s right
Answer:
50 would be the correct response.
Step-by-step explanation:
The two interior angles are the sum of the exterior angle. 50 + 50 is 100, so 50 would be correct.
The RMC Theater holds 250 people and last night's performance was sold out! Children
under the age of 16 paid $4.50 per ticket, while adults paid $6.00 per ticket. Last night's
show brought in $1320. Write two equations to represent the given information in this
situation. Let c = the number of children's tickets sold and let a = the number of adult
tickets sold. You do not need to solve the system of equations.
Answer:
im on that question too thats crazy
Step-by-step explanation:
help meplease i give 5 star
Solve for p -10p = -40 ???
Answer:
p = 40/9
Step-by-step explanation:
p - 10p = -40
-9p = -40
p = -40/(-9
p = 40/9
find the mean of the data set below 2,2,3,5,7,8
someone answer asap
Hiiioo can you help me please?❤️:D
For a regular polygon with 3 sides, each interior angle has a measure of-
A. 60
B.45
C.30
D.120
60
The sum of the interior angles of a triangle is 180
if there are 3 sides then there are 3 angles
180/3=60 so each interior angle has a measure of 60
Please answer my most recent question.
i need help asap thank you
Answer:
250
Explanation:
2,000 plus 250 × 3 is 2,750 so that is the answer.
im just begin lazy ok
Answer:
I am being lazy too
Step-by-step explanation:
81 x 1 = 81
81 x 2 = 162
81 x 3 = 243
81 x 4 = 324
81 x 5 = 405
81 x 6 = 486
81 x 7 = 567
81 x 8 = 648
81 x 9 = 729
81 x 10 = 810
81 x 11 = 891
81 x 12 = 972
81 x 13 = 1053
81 x 14 = 1134
81 x 15 = 1215
81 x 16 = 1296
81 x 17 = 1377
81 x 18 = 1458
81 x 19 = 1539
81 x 20 = 1620
81 x 21 = 1701
81 x 22 = 1782
81 x 23 = 1863
81 x 24 = 1944
81 x 25 = 2025
81 x 26 = 2106
81 x 27 = 2187
81 x 28 = 2268
81 x 29 = 2349
81 x 30 = 2430
81 x 31 = 2511
81 x 32 = 2592
81 x 33 = 2673
81 x 34 = 2754
81 x 35 = 2835
81 x 36 = 2916
81 x 37 = 2997
81 x 38 = 3078
81 x 39 = 3159
81 x 40 = 3240
81 x 41 = 3321
81 x 42 = 3402
81 x 43 = 3483
81 x 44 = 3564
81 x 45 = 3645
81 x 46 = 3726
81 x 47 = 3807
81 x 48 = 3888
81 x 49 = 3969
81 x 50 = 4050
Solve the area of a rhombus
Answer:
67.5
Step-by-step explanation:
A=pq/2= (45)(3)/2= 67.5
18. Select all the expressions equivalent to 12 + 30y.
3(4 + 10y)
4(3 + 10y)
6(2 + 5y)
2(6 + 30y)
6(3 + 10y)
algebra x = 3, y=2x and z=3y , whats z?
4. In ADEF, ZE is a right angle. If the side opposite ZD has a length of 17 and the length of the hypotenuse
is 26, which of the following is the value of ZD to the nearest degree?
(1) 33°
(3) 490
(2) 41°
(4) 57°
Angela is 4 feet 7 inches tall. Angela's doll is 11 inches tall. What is the ratio of Angela's height to the
doll's height?
Answer: 5:1 (simplified and in inches)
Step-by-step explanation:
Let’s convert Angelicas height in inches so all the measurements are the same.
Anglelicas height: 4 ft7 in
OR
Angelicas height: 55 inches
Dolls height: 11 inches
The ratio would be 55:11 but we would need to simplify since both numbers are divisible by a GCD (greatest common denominator)
55 and 11 are both divisible by 11 so the new simplified ratio would be...
5:1
Factor the following polynomial completely.
x^3 + x^2 - 6x
Answer:
x(x+3)(x-2)
Step-by-step explanation:
i hope this helps :)
In which of the following situations would finding the surface area of an object be the most applicable?
Hi, you've asked an incomplete question. However, I provided a brief explanation about surface areas.
Explanation:
Surface area is a term commonly used in mathematics, and other branches of science, and it basically refers to a calculation of the total space that an object occupies.
For example, you can find the surface areas of a cuboid using the formula:
[tex]6s^{2}[/tex] where s= side length.
Emma bought a hat for $20. Emma increases the price by 25%. What is the price of the hat now?
Answer:
its $25
Step-by-step explanation:
Answer:
The hat is 25$ now
Step-by-step explanation:
25% of 20 is 5
5 + 20 = 25
Monica deposits $300 into a savings account that pays a simple interest rate of 4.2% paul deposits $400 into a savings account that pays a simple interest rate of 3.8% monica says that she will earn more interest in 1 year because her interest rate is higher is she correct?
Answer:
Paul earned $2.6 more interest than Monica.
Step-by-step explanation:
Giving the following information:
Monica:
Initial investment= $300
Interest rate= 4.2%
Paul:
Initial investment= $400
Interest rate= 3.8%
To calculate the income earned, we need to use the following formula:
I= P*r*t
P= principal
r= interest rate
t= time
Monica:
I= 300*0.042*1= $12.6
Paul:
I= 400*0.038*1= $15.2
Paul earned $2.6 more interest than Monica.