Answer:
The probability that at least 1 defective card is in the sample is [tex]0.9644[/tex]
Step-by-step explanation:
Here
N = 140
and n = 20
We will use the below given formula
P(at least 1 defective) = 1 - P( 0 defectives)
P( 0 defectives) =
[tex]= \frac{^{20}C_0 * ^{120}C_{20}}{ ^{140}C_{20}}\\= 0.0356 1-0.0356 \\= 0.9644[/tex]
Erin wants to buy a set of paint brushes:
Store A sells a set for $25.00 and offers a 10% discount
Store B sells a set for $27.00 and offers a 20% discount
Store C sells a set for $26.00 and offers a 15% discount
I NEED THIS ASAP! worth 20 points!
Answer:
m
Step-by-step explanation:
What is the slope of the line represented by the equation y=--
1/2x+1/4?
Answer:
The slope is 1/2
Step-by-step explanation:
The number accompanied by the variable is the slope. It is in y=mx+b format, and m is the slope.
Write an equation in slope-intercept form for the line between (2,7) and (6, 19)
Answer:
y= 3x +1
Step-by-step explanation:
Slope-intercept form:
y= mx +c, where m is the slope and c is the y-intercept.
Gradient= [tex] \frac{y1 - y2}{x1 - x2} [/tex]
☆ (x1, y1) is the 1st coordinate and (x2, y2) is the 2nd coordinate
Using the formula above, slope of line
[tex] = \frac{19 - 7}{6 - 2} \\ = \frac{12}{4} \\ = 3[/tex]
Subst. m=3 into the equation:
y= 3x +c
To find the value of c, substitute a pair of coordinates.
When x= 2, y= 7,
7= 3(2) +c
7= 6 +c
c= 7 -6
c= 1
Thus, the equation of the line is y= 3x +1.
2(4)+ 4(1)= 12
Solution
For t=2, 13t-2t is equal to 22 and 2t - 13t is equal to ??
Answer:
[tex]2(2) - 13(2) \\ 4 - 26 \\ = - 22[/tex]
11. in a class of 40 students. 26 are girls and 14 are boys. What is the ratio of girls to the total number of stude
Answer:
26;40 simplified is 13/20
Step-by-step explanation:
The distance around a lake is 8km on a map this distance around the lake is represented by 2 cm The on the map is what
Answer:
1 cm = 4 km.
Step-by-step explanation:
I think you want the scale of the map.
It is 1 cm = 8/2 = 4 km.
Three friends at a video arcade win a total of 2,837 tickets. They decide to share the tickets equally. How many tickets will each friend receive?
Answer:
28373=947Step-by-step explanation:
You divide 2837 by 3 then your is 947
Determine whether the given value is a solution of the equation. Show your work.
21 = x − 5; x = 16
Step-by-step explanation:
No Not an answer
21=x-5
x=26
can someone help asap!
ANSWERS:
1) ∛216²=36
2) √81= 9
3) √4∧5=32
4)1.55
5)25
6)X
what is 4 times as much as 20.075? show work
Answer:
80.3
Step-by-step explanation:
20.075 x 4 = 80.3
Hope that helps!
To multiply 4 x 5 3/8, the mixed number can be broken down into a whole number and a fraction. In this case, that whole number would be ____ and the fraction would be ___ eighths. Each of these parts are then ___ ___. Pls tell me the answer pls!
Answer:
Step-by-step explanation:
To multiply 4×5⅜, the mixed number can be broken down into a whole number and a fraction. In this case, that whole number would be 5 and the fraction would be three-eighths. Each of these parts are then multiplied by 4 and the products are added together.
4×5⅜ = 4×(5+⅜)
= 4×5 + 4×⅜
= 20 + 3/2
= 20 + 1½
= 21½
Help Ratios Picture added!!
is this a positive or negative slope
Answer:
negative slope
Step-by-step explanation:
trust me
Ratio table answer If I buy two ice cream’s for six dollars how much would it cost to buy 10 ice cream’s
Answer:
It would cost $30 to buy 10 ice creams.
Step-by-step explanation:
1 ice cream costs $3
10*3=30
I am confused on what I need to do. someone please help?
Answer:
x = 16
Step-by-step explanation:
Since ∆ABC is congruent to ∆DEC, their corresponding angles would be equal to each other.
<B is congruent to <E, therefore,
<B = <E
x + 15 = 6x - 65 (substitution)
Collect like terms
x - 6x = -15 - 65
-5x = -80
Divide both sides by -5
x = 16
Challenge in a company, 95% of the workers are men. If 270people work for the company who
aren't men, how many workers are there in all? Use pencil and paper. Show two different ways that
you can solve this problem.
There are workers in all. (Type a whole num
Answer:
5,400
Step-by-step explanation:
5% = 270
270 ÷ 5 = 54
54 × 100 = 5400
A stereo store is offering a special price on a complete set of components (receiver, compact disc player, speakers, turntable). A purchaser is offered a choice of manufacturer for each component.
Receiver: Kenwood, Sony, Sherwood
Compact disc player: Onkyo, Pioneer, Sony, Technics
Speakers: Boston, Infinity, Polk
Turntable: Onkyo, Sony, Teac, Technics
A switchboard display in the store allows a customer to hook together any selection of components (consisting of one of each type). Use the product rules:
A. In how many ways can one component of each type beselected?
B. In how many ways can components be selected if boththe receiver and the cd player are to be sony?
C. In how many ways can components be selected if noneis to be sony?
D. In how many ways can a selection be made if at leastone sony component is to be included?
E. If someone flips the switches on the selection in acompletely random fashion, what is the probability that the systemselected contains at least one sony component?
Answer:
Step-by-step explanation:
A stereo store is offering a special price on a complete set of components (receiver, compact disc player, speakers, turntable). A purchaser is offered a choice of manufacturer for each component.
Receiver: Kenwood, Sony, Sherwood
Compact disc player: Onkyo, Pioneer, Sony, Technics
Speakers: Boston, Infinity, Polk
Turntable: Onkyo, Sony, Teac, Technics
A switchboard display in the store allows a customer to hook together any selection of components (consisting of one of each type). Use the product rules:
A. In how many ways can one component of each type beselected?
B. In how many ways can components be selected if boththe receiver and the cd player are to be sony?
C. In how many ways can components be selected if noneis to be sony?
D. In how many ways can a selection be made if at leastone sony component is to be included?
E. If someone flips the switches on the selection in acompletely random fashion, what is the probability that the systemselected contains at least one sony component?
А
D
B В
С
If mZABD = 65° and m2DBC = 60°,
then m ABC = [? ]°
Enter
please help I will give you brainliest
Answer:
angle abc=125°
.......................
Answer:
125
Step-by-step explanation:
Using the angle addition postulate,
Parts of an Angle add up to form a new angle with the measure of that angle is the sum of the two separate angles.
Add ABD and DBC
[tex]65 + 60 = 125[/tex]
ABC=125
A town’s population of children increased from 376 to 421 during the past year.
Which equation shows how to find the percent increase?
Answer:
p = 421 - 376 over 376
Step-by-step explanation:
HELP AAAAAAAAAAAAAAAAAAA
Name all the factors of 12.
A large piece of iron has a density of 7.87 g/ml what is the density of a piece of iron that is two times heavier
Answer:
15.74
Step-by-step explanation:
7.87 times 2 = 15.74
the density of the other piece of iron is 15.74 g/ml.
Travelling with a current, a boat covers a distance 1.5times greater than travelling against the current in the same amount of time. What is the speed of the boat in still water if the speed of the current is 1.5 mph
Which system has no solution? A b c d
Which symbol completes the inequality represented in the graph z _1.5 needed ASAP plz!!!!
In ARST, mZR
mZS.
(x +17), m
mzs
(2x - 2), and mZT
(5x + 5)'. Find
9514 1404 393
Answer:
∠S = 38°
Step-by-step explanation:
The sum of angles in a triangle is 180°, so you have ...
(x+17)° +(2x-2)° +(5x+5)° = 180°
8x +20 = 180 . . . . . divide by °, collect terms
8x = 160 . . . . subtract 20
x = 20 . . . . . . divide by 8
∠S = (2x -2)° = (2·20 -2)°
∠S = 38°
Gap sells jeans that cost $21.00 and sell for $29.95. the percent of markup based on cost is
Answer:
is this actually a question?
Step-by-step explanation:
the question says "Find the value of the triangle shown below"
Answer:
a
Step-by-step explanation:
Answer:
[tex]\sqrt{32}[/tex]
Step-by-step explanation:
[tex]a^{2} +c^{2}=b^{2}[/tex]
which becomes 81=49+b giving you the number 32 which doesn't have a perfect square meaning the answer would be b=[tex]\sqrt{32}[/tex]
What simple interest rate is needed for $1,000 to grow to $1,071.25 in 9 months? (Round to the nearest tenth of a percent, if necessary)
Answer:
9.6%
Step-by-step explanation:
x and y
are supplementary angles. y
measures 142.
What is the measure of x?
Answer:
38°
Step-by-step explanation:
y = 142°
x + y = 180°{ being supplementary angles }
x + 142° = 180°
x = 180° - 142°
x = 38°
Hope it will help :)