Answer:
choosing two socks from a drawer of black and white socks without replacement
Step-by-step explanation:
Dependent events have results that depend on each other. When I take one sock out, there are less socks in the drawer to pick from. The probability of picking a certain sock changes because the number of socks are different when I do not put the sock back. That makes the events dependent.
When I put the sock back, the probability goes back to what it was before I took the sock, and now the results do not depend on each other, so when they are replaced, they are independent
Answer:
choosing two socks from a drawer of black and white socks without replacement
Step-by-step explanation:
choosing two socks from a drawer of black and white socks without replacement are dependent events because the available options for the second selection depends on which colour was the first sock
What is the area of the regular pentagon with 5 inch sides and apothem that measures 4.2 inches?
52.5 in2
21 in2
105in2
10.5 in2
Answer:
its 52.5. I just did it on edge
Step-by-step explanation:
The area of the regular polygon is 52.5 in².
What is area?Area is the region bounded by a plane shape.
To calculate the area of the regular pentagon, we use the formula below.
Formula:
A = anL/2............ Equation 1Where:
A = Area of the regular polygona = Length of apothem of the polygonn = Number of sides of each polygonL = Length of sides of each polygonFrom the question,
Given:
a = 4.2 inchesL = 5 inchesn = 5 (pentagon)Substitute these values into equation 1
A = 5×4.2×5/2A = 52.5 in²Hence, the area of the regular polygon is 52.5 in².
Learn more about area of regular polygon here: https://brainly.com/question/8409681
Simplify. x + y - 0 x 2 - y 2
Answer:
-y^(2)+x+y
Step-by-step explanation:
2. An advertiser wants to find convincing evidence that television viewers
remember more than 4 commercials, on average, after watching a 30 minute TV
program. They take a random sample of 100 television viewers and ask them
how many commercials they could remember after watching a 30 minute TV
program. The appropriate t-test was conducted, which resulted in a P-value of
0.15. Assuming all conditions were met, which of the following is an appropriate
conclusion?
(A) Because the P-value is less than 0.05, at the 5% significance level, there is not
convincing evidence that television viewers remember more than 4 commercials, on
average, after watching a 30 minute TV program.
(B) Because the P-value is greater than 0.05, at the 5% significance level, there is
convincing evidence that television viewers remember fewer than 4 commercials, on
average, after watching a 30 minute TV program.
(C) Because the P-value is greater than 0.01, at the 1% significance level, there is not
convincing evidence that television viewers remember more than 4 commercials, on
average, after watching a 30 minute TV program.
(D) Because the P-value is greater than 0.01, at the 1% significance level, there is
convincing evidence that television viewers remember exactly 4 commercials, on
average, after watching a 30 minute TV program.
(E) Because the P-value is less than 0.01, at the 1% significance level, there is convincing
evidence that television viewers remember fewer than 4 commercials, on average, after
watching a 30 minute TV program.
Answer:
C
Step-by-step explanation:
true or false a survey is the only way to collect date
Answer:
False and also the last word is data not date.
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
someone please help me haha
Step-by-step explanation:
6(2x^2 - x - 28)
6(2x + 7)(x - 4)
What is the area of JKL if the coordinates of J,K and L are
Answer:
6 units²
Step-by-step explanation:
Which equation should be used to find the volume of the figure?
8 in.
10.jn.
4 in.
6 in
V=(6)(418)
/ -2(6)4)8)
v=3(0)(4)(10)
Mark this and return
An equation which should be used to calculate the volume of the geometric figure (see attachment) is: A. V = 1/3(6)4)(8).
How to calculate the volume of a pyramid?Based on the geometric figure shown, we can logically deduce that it is a pyramid. Mathematically, the volume of a pyramid can be calculated by using this formula:
Volume = 1/3 × b × h
Where:
h is the height.b is the base area.Substituting the parameters into the formula, we have:
Volume = 1/3 × 6 × 4 × 8
Volume = 1/3(6)4)(8).
Read more on pyramid here: brainly.com/question/16315790
#SPJ1
What is the area of this figure
180 square inches
190 square inches
45 square inches
96 square inches
Answer 190 square inches
Step-by-step explanation:
If there wasn't a piece cut off of the rectangle, you would multiply 22 by 15 because those are the side lengths. However, there is a piece missing so it will not have a great of an area. On the left side, it says that the width is 8 because part of the side is cut off. On the other side, it says 22. This shows that 14 inches is cut off. So width of the missing piece is 14. Then you need to find the length. On the bottom. It says the length is 5 where the top says 15. That shows that 10 inches are missing. That means the missing side is 14x10 which is 140 square inches. If the rectangle was a whole, it would be 330. You subtract 140 from that and it makes 190 square inches.
Answer:
190 square inches.
Step-by-step explanation:
here is my work to follow to figure out a problem like this.
The half-life of a certain radioactive element is 35 hours. If there are 904 grams of this element, how much will be left after 70 hours? (please help I might fail Math.)
Answer:
226 grams
Step-by-step explanation:
The half-life of a radioactive substance is the time taken for half the quantity of the substance to decay such that the amount life after the given period of time is half the original quantity.
As such, given that the half-life of a certain radioactive element is 35 hours and there are 904 grams available, it means that after 35 hours,
Amount decayed = 1/2 * 904 grams
= 452 grams
Amount left = 904 grams - 452 grams
= 452 grams
After another 35 hours (now a total of 70 hours),
Amount decayed = 1/2 * 452 grams
= 226 grams
Amount left = 452 grams - 226 grams
= 226 grams
What happens if you decide to cash in your Certificate of Deposit (CD) before its maturity date?
Answer:
If you decide you need your funds before the maturity date, you'll pay an early withdrawal penalty.
Step-by-step explanation:
I have a book on this kinda stuff! :D
Answer:
If you decide you need your funds before the maturity date, you'll pay an early withdrawal penalty.
Step-by-step explanation: ED2022
Tiffany answered 90% of the questions on her math test correctly.
There were 50 questions on the test. How many questions did Tiffany answer correctly:
I NEED TO SHOW MY WORKKK, thank you :))
50=100%
X=90%
X=50*90%/100
X=45
Answer:
45
Step-by-step explanation
90/100 × 50/1 50 goes into 100 2
90/2 × 1/1 = 45
Hope this helps
Luke has 1/5 of a package of dried apricots. He divides the dried apricots equally into 5 small bags. Luke gives one of the bags to a friend and keeps the other four bags for himself.
What fraction of the original package of dried apricots did Luke keep for himself?
Answer:
4/25
First we have to divide 1/5 by 5. To do this we must follow the rules of dividing fractions which is switching the numerator and denominator of the second number/fraction, so 5 becomes 1/5. Next, we have to multiply the two fractions: 1/5 x 1/5= 1/25 (This is the amount of apricots in 1 bag). If we multiply that by 5, its going to 5/25 which is now 5 bags. 5/25 - 1/25=4/25 and that is our final answer.
2 2/3 Divided by 1/4
Find the quotient simplify if possible
Answer:
Step-by-step explanation:
make 2 2/3 into an improper fraction by multiplying 2 by 3 and adding to 2
8/3
8/3 divided by 1/4 is the same as 8/3 multiplied by 4/1 (just 4)
[tex]\frac{8}{3}*\frac{4}{1} =\frac{32}{3}[/tex]
32/3=10 2/3
What is 8(4-x) = 772
8(4-x) = 772
32 - 8x = 772
-8x = 772 - 32
-8x = 740
8x = -740
x = -740/8
x = -92.5
hope it helps!
Sarah and gabriela are at a soccer camp . The length of a soccer practice is 2/3 hour. The coaches have set aside 8 hours for soccer practice . How many soccer practices can the coach have?
Answer:
the answer is 12
Step-by-step explanation:
you basically have to divide 8 by 2/3 then you would get 12
8/1 / 2/3 kcf8/1 x 3/2= 24/224 divided by 2 = 12I WILL GIVE YOU BRAINLIEST, AND 30 POINTS SO PLEASE HELP ME, IT'S URGENT!
Answer:
11.25
Step-by-step explanation:
AB: < 14-3 , 17-12 >
AB: < 11, 15 >
AC = ¾< 11, 15 >
AC = < 8.25 , 11.25 >
OC = OA + AC
OC = < 3 , 12 > + < 8.25 , 11.25 >
OC = < 11.25 , 23.25 >
C: (11,25,23.25)
Please help me with this I need this done!!!
Answer:
1=1
2=4
3= <NTR=115
<RTM=45
<STN=45
4= A-124
B-45
C-45
D-90
E-124
5=15
6=?
Step-by-step explanation:
FGHJK
Math question down below
Answer:
D. 604
Step-by-step explanation:
411/3 = 137
137 + 388 = 525
----------------------------------
(n) 604 - 79 = 525
A bag contains 5 red marbles, 4 white marbles, and 5 blue marbles. Find P(red and blue).
Answer:
5/7
Step-by-step explanation:
The total number of marbles is 5+5+4 = 14
P(red and blue) = number of red and blue / total
=5+5 / 14
= 10/14
= 5/7
During the first week students of RSM solved 25 percent of their monthly quota of problems. In the second week, they solved 110 percent of the number of problems solved in the first week. In the third week they solved 60 percent of the problems they had solved during the first two weeks and, in the fourth week, they solved the remaining 320 problems. How many problems did the students solve during the month?
Answer:
2000 problems
Step-by-step explanation:
1st week - 0.25x
2nd week - 1.10(0.25x)
3rd week - 0.6(0.25x + 1.10(0.25x))
4th week - 320
Than to solve for the monthly quota, equate the sum of all the problems solved to x and determine its value. Thus, the students solved 2000 problems all in all.
Enjoy Your Answer!
Answer:
2000
Step-by-step explanation:
(4x + 30)
What’s the answer
Answer:
Fraction form -15/2
Decimal form -7.5
Step-by-step explanation:
4x+30=0
subtract 30 from both sides
4x=-30
divide both sides by 4
x=-30/4
simplify
-15/2 or -7.5
You open your first interest-bearing savings account with an initial deposit of
$2,500. Interest is compounded quarterly at a rate of 3.5%. Assuming you do not
deposit any more money into the account, how much money will you have in the
account after 5 years?
Answer:
$2,975.85
Step-by-step explanation:
Lets use the compound interest formula provided to solve this:
[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
P = initial balance
r = interest rate (decimal)
n = number of times compounded annually
t = time
First, change 3.5% into a decimal:
3.5% -> [tex]\frac{3.5}{100}[/tex] -> 0.035
Since the interest is compounded quarterly, we will use 4 for n. Lets plug in the values now:
[tex]A=2,500(1+\frac{0.035}{4})^{4(5)}[/tex]
[tex]A=2,975.85[/tex]
After 5 years, the account will have $2,975.85
A powerful computer is purchased for $2000, but loses 20% of its value each year.
Answer:
It loses $400 a year
Step-by-step explanation
$2000 x 20% or .20 = $400 per year is what the computer loses.
It loses a great deal of value a year.
Answer: 100n
Step-by-step explanation:
Each year it looses 100$ of its value each year.
Helppp math genius helppppppp I'll mark you the brainlest
Answer:
21
Step-by-step explanation:
because it is only part of the bottom one so it should be 21 sorry if it wrong
Cos(angle) = adjacent leg/ hypotenuse
Cos(30) = x/24
X = cos(30) x 24
X = 20.78
X = 21
PLEASE HELP ME GREATLY APPRECIATED
A 42%
B 52%
C 58%
D 50%
Answer:
42%
Step-by-step explanation:
1) so out of the 50 girls surveyed, only 21 students played in the league. We can write this as 21/50
to convert this into percentage multiply by 2 on both sides:
21*2=42
50*2=100
42/100=42%
42% of girls played in the league
hope this helps!
The average wage for an electrician in CA is $25.47/hour. That is 11% above the national average. What is the national average?
a) $22.95
b) $23.99
c) $24.22
d) $25.32
Answer:
Step-by-step explanation:
let the national average be x
11/100 * x = 11x/100
25.47 - x = 11x/100
100(25.47-x) = 11x
2547 - 100x = 11x
2547 = 11x + 100x
2547 = 111x
x = 2547/111
x = 22.945945945946
22.95
BRAINLIEST WILL BE GIVEN!!! HURRY!
What is the surface area of the entire sculpture? Use 3.14 for π.
*Surface area of the entire sculpture = Surface area of the cube - Surface area of the two circles + Curved surface area of the cylinder
*Surface area of the cube = 6s² (6 x side x side)
*Surface area of the two circles = 2πr² (2 x 3.14 x radius x radius)
*Curved surface area of the cylinder =2πrh (2 x 3.14 x radius x height)
Answer:
717.75cm ^2
Step-by-step explanation:
6(10)(10)= 600
2(3.14)(2.5)(2.5)= 39.25
2(3.14)(2.5)(10)= 3.14(5)(10)= 157
600-39.25+157= 717.75
factorise 2d^2-98 completely
Answer:
Hello,
2 (d + 7) (d - 7)
Step-by-step explanation:
2 d² - 98 = 2 (d² - 49) = 2 (d² - 7²)
a² - b² = (a + b) (a - b)
2 (d² - 7²) = 2 (d + 7) (d - 7)
What is the product of the binomials
Answer:
(x-9)(x+2) = x^2 + 2x -9x -18 = x^2 -7x -18
Answer is B
Step-by-step explanation:
Find the surface area of the figure. Round to the nearest hundredth.
Answer:
Step-by-step explanation:
