Answer: company A: 1.36
company B: 1.54 A; lowest expected number of defective boards
Step-by-step explanation:
i got it right on edge
The weighted average is a generalization of the expected value. The company that should be chosen for purchasing circuit boards is Company A.
What is the expected value?The weighted average is a generalization of the expected value. The expected value is the arithmetic mean of a large number of independently chosen random variable outcomes.
A.) The expected number of defective circuit boards for company A is,
Expected number = (0.21×0) + (0.30×1) + (0.41×2) + (0.08×3) = 1.36
B.) The expected number of defective circuit boards for company B is,
Expected number = (0.18×0) + (0.32×1) + (0.28×2) + (0.22×3) = 1.54
C.) Since the expected number of defective circuit boards for Company A is less, therefore, the company that should be chosen for purchasing circuit boards is Company A.
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D(5, 7), E(4, 3), and F(8, 2) form the vertices of a triangle. What is m∠DEF?
A) 30
B) 45
C) 60
D) 90
Answer:
m∠DEF = 90
Explanation:
Translate the figure 2 units left and 4 unites down.
PLEASE ASAP
Answer:
Step-by-step explanation:
Find the sum of the first 8 terms of the following series, to the nearest integer. 28,14,7,...
Answer:56
Step-by-step explanation:
Find the slope of the line whose equation is 17 + 3y = 7x.
-7/3
17/3
7/3
Step-by-step explanation:
slope of the line is 7/3
17+3y=7x-7x+3y=17slope = -x coffecient / y coffecient
-(-7)/37/3stay safe healthy and happy.A pool measuring 8 meters by 28 meters is surrounded by a path of uniform width, as shown in the figure. If the area of the pool and the path combined is 476 square meters, what is the width of the path?
11. please help me outt ill mark you brainlist !
can someone pls help
Answer:
C
Step-by-step explanation:
4(5)+10-12=18
SOMEONE PLEASE HELP 7TH GRADE MATH
Answer:
5 x 6 = 30 your outcome
2, you can either get white or red
2/30 = 1/15
polynomials in factored form 6ab³c² + 21ab²c²
Answer:
[tex]6ab {}^{2} c {}^{2} + 21ab^{2}c {}^{2} \\ = 3ab {}^{2} c {}^{2} \times (2b + 7) [/tex]
hope this helps!ت︎
Simplify the expression:
(1 2/7)(-4 1/5)
Answer:
-27/5 or -5 2/5
Step-by-step explanation:
Simplify
1 2/7 to 9/7
-4 1/5 to -21/5
multiply together
(9)(-21)/(7)(5)
-189/35
u can simplify by diving by 5 to get
-27/5
PLEASE HELP! (Correct answers only please)
Please answer the question in the picture
Answer:
Answer Choice B
1. 10:15 H Wednesday (Philippines) - 05:15 H Wednesday (Riyadh, Saudi
Arabia)
Time difference
Answer:
5hours
Step-by-step explanation:
10:15 - 05:15 = 5 hours
Thsi means that local time in Philippines is 5 hours ahead of local time in Riyadh, Saudi Arabia.
The time can be interpreted as follows ; At a certain time in the Philippines, say 10:15 am in the morning, At this verh point in the Riyadh, Saudi Arabia, the time will be :
(10:15 - 5 hours) = 05:15
can someone please help me with this??? im trying to correct test answers
n = ?
which graph can be used to solve the equation 2x-1=x+2
Answer: top right
Step-by-step explanation:
An equation is formed of two equal expressions. The graph can be used to solve the equation 2x-1=x+2 is the Top right one.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
A graph is a way to represent a lot of data in such a visual format that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.
The two of the given equations can be written as,
y = 2ˣ - 1
y = x + 2
If the two equations are now when plotted on the graph, it will be like the one shown below. Hence, the graph can be used to solve the equation 2x-1=x+2 is the Top right one.
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Every day, Jackie practices basketball and guitar. Each day,
she practices basketball for 1.5 hours. If after 6 days she
practiced both basketball and guitar for a total of 21
hours, how many hours per day did Jackie practice guitar?
which number sentence is true? plz help
3 boxes on top
8 boxes on the bottom
2/3 < 6/8
2/3 < 2/8
1/8 > 1/3
3/3 < 3/8
Answer:
True: 2/3 < 6/8Step-by-step explanation:
The rest are incorrect.
The diameter of Circle X is 18 cm. The diameter of Circle Y is 29 cm. Which circle has the greater area and by how much? Use 3.14 for . Use pencil and paper. Describe two ways you can compare the areas of two circles. Explain when you might prefer to use each.
Sparky has a monthly cell phone plan that has a fixed charge of $15 per month plus $0.05 per text message. Sparky wants to spend no more than $50 per month on his cell phone. Write an inequality that represents the number of test messages, x, that Sparky can use in a month. PLEASE HELP!!!
Answer:
15 + 0.05x ≤ 50
Step-by-step explanation:
The cost needs to be less than or equal to 50. Thus, the equation would be
15 + 0.05x ≤ 50
Solve the system of equations using the substitution method.
plz answer quickly
Answer:
I will solve your system by substitution.
y=2;2x+y=8
Step: Solvey=2for y:
Step: Substitute2foryin2x+y=8:
2x+y=8
2x+2=8
2x+2+−2=8+−2(Add -2 to both sides)
2x=6
2x
2
=
6
2
(Divide both sides by 2)
x=3
Answer:
x=3 and y=2
Step-by-step explanation:
Brainiest??
A high school soccer team is going to Columbus to see a professional soccer game. A coordinate grid is superimposed on a highway map of Ohio. The high school is at point (3, 4) and the stadium in Columbus is at point (7, 1). The map shows a highway rest stop halfway between the cities. What are the coordinates of the rest stop? What is the approximate distance between the high school and the stadium? (One unit = 6.4 miles.)
Answer:
a) The coordinates of the rest stop is [tex]C(x,y) = \left(5, \frac{5}{2} \right)[/tex].
b) The approximate distance between the high school and the stadium is 32 miles.
Step-by-step explanation:
a) The rest stop is located in the midpoint of the line segment between the high school and the stadium. Vectorially speaking, we use the following formula:
[tex]C(x,y) = \frac{1}{2}\cdot A(x,y) + \frac{1}{2}\cdot B(x,y)[/tex] (1)
Where:
[tex]A(x,y)[/tex] - Coordinates of the high school.
[tex]B(x,y)[/tex] - Coordinates of the stadium.
[tex]C(x,y)[/tex] - Coordinates of the rest stop.
If we know that [tex]A(x,y) = (3, 4)[/tex] and [tex]B(x,y) = (7,1)[/tex], then the coordinates of the rest stop are, respectively:
[tex]C(x,y) = \frac{1}{2}\cdot (3, 4) + \frac{1}{2}\cdot (7, 1)[/tex]
[tex]C(x,y) = \left(\frac{3}{2}, 2 \right) + \left(\frac{7}{2}, \frac{1}{2} \right)[/tex]
[tex]C(x,y) = \left(5, \frac{5}{2} \right)[/tex]
The coordinates of the rest stop is [tex]C(x,y) = \left(5, \frac{5}{2} \right)[/tex].
b) The approximate distance between the high school and the stadium ([tex]d[/tex]), in miles, is the product of the Length Equation of the Line Segment and the scale factor:
[tex]d = r\cdot \sqrt{(\Delta x)^{2} + (\Delta y)^{2}}[/tex] (2)
Where:
[tex]r[/tex] - Scale factor, in miles.
[tex]\Delta x[/tex], [tex]\Delta y[/tex] - Horizontal and vertical distances between the high school and the stadium, no unit.
If we know that [tex]r = 6.4\,mi[/tex], [tex]\Delta x = 4[/tex] and [tex]\Delta y = -3[/tex], then the distance between the high school and the stadium is:
[tex]d = r\cdot \sqrt{(\Delta x)^{2} + (\Delta y)^{2}}[/tex]
[tex]d = (6.4\,mi)\cdot \sqrt{4^{2}+(-3)^{2}}[/tex]
[tex]d = 32\,mi[/tex]
The approximate distance between the high school and the stadium is 32 miles.
PLEASE HURRY!!!
NO LINKS OR FILES, JUST THE CORRECT ANSWER AND I WILL GIVE BRAINLIEST IF THERE ARE ANY LINKS I'LL REPORT YOUU
Answer:
ok NOBODY REPORT THIS QUESTION OR ELSE I WILL BLOCK YOU ON BRAINLY AND I WILL REPORT YOU I HAVE ADMIN ACCESS SO I CAN BLOCK YOU that good mel?
Step-by-step explanation:
What percentage of the data values falls between the values of 3 and 24 in the data set shown?
25%
50%
75%
100%
I will mark Brainliest
Answer:
100%.
I strongly think I’m right.
Step-by-step explanation:
Please help I really need it
Answer:
first option
Step-by-step explanation:
Given
y = 2(x - 3)² + 1
Rearrange making x the subject
Subtract 1 from both sides
y - 1 = 2(x - 3)² ( divide both sides by 2 )
[tex]\sqrt{\frac{y-1}{2} }[/tex] = (x - 3)² ( take the square root of both sides )
± [tex]\sqrt{\frac{y-1}{2} }[/tex] = x - 3 ( add 3 to both sides )
± [tex]\sqrt{\frac{y-1}{2} }[/tex] + 3 = x
Change y into terms of x with x being the inverse, that is
[tex]f^{-1}[/tex] (x) = ±[tex]\sqrt{\frac{x-1}{2} }[/tex] + 3
3 + x = y given x = 1 y =
Answer:
y = 4
Step-by-step explanation:
3 + x = y
given x = 1
plug in x = 1
3 + 1 = y
4 = y
y = 4
Answer:
y = 4
Step-by-step explanation:
3 + x = y
3 + 1 = y
4 = y
Which of the following is an example of a biotic limiting factor for a population?
A) water availability
B) climate
C) disease
D) natural disasters
Answer:
I don’t know. I think disease
Step-by-step explanation:
Answer
I think A is the answer
step by step explain
1 cm 12 cm 1 cm Find the volume of the rectangular prism.
Answer:
12 cm^3
Step-by-step explanation:
12 x 1 x 1 =12
Triangle PQR is similar to triangle STU, where P, Q, and R correspond to S, T, and U,
respectively. In triangle PQR, the length of PQ is 2 and the length of QR is 8. In triangle STU,
the length of ST is 9. What is the length of TU?
9
11
18
36
Answer:
TU=36
Step-by-step explanation:
use the side lengths of PQR to determine the proportionality of the two triangles. 9/2=4.5 so, multiply 8 by 4.5 to find TU.
Assessment started: undefined.
Item 1
A spinner has 4 equally sized sectors that are numbered 1, 3, 8 and 8. The spinner is spun twice and the product of the outcomes is found.
A fair decision is to be made about which one of 4 side dishes will be prepared.
The side dish options are creamed corn, scalloped potatoes, rice pilaf and coleslaw.
Which description accurately explains how a fair decision can be made in this situation?
If the product is 64, creamed corn will be prepared. If the product is 24, scalloped potatoes will be prepared. If the product is 8, coleslaw will be prepared. If the product is 1, 3 or 9, rice pilaf will be prepared.
If the product is 64, creamed corn will be prepared. If the product is 24, scalloped potatoes will be prepared. If the product is 9, coleslaw will be prepared. If the product is 1, 3 or 8, rice pilaf will be prepared.
If the product is 64, creamed corn will be prepared. If the product is 9, scalloped potatoes will be prepared. If the product is 8, coleslaw will be prepared. If the product is 1, 3 or 24, rice pilaf will be prepared.
If the product is 3, creamed corn will be prepared. If the product is 24, scalloped potatoes will be prepared. If the product is 8, coleslaw will be prepared. If the product is 1, 9 or 64, rice pilaf will be prepared.
Answer:
If the product is 64, creamed corn will be prepared. If the product is 24, scalloped potatoes will be prepared. If the product is 8, coleslaw will be prepared. If the product is 1, 3 or 9, rice pilaf will be prepared.
Step-by-step explanation:
I took the test! :)
A student flips a coin three times. What is the probability the coin lands tails up exactly two times?
Answer:
1:3
Step-by-step explanation:
I believe this would be right
The probability the coin lands tails up exactly two times is 3/8
How to determine the probability?When a coin is flipped three times, the sample space is;
S = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}
In the above sample space, there are 3 occurrences where the coin lands tail up, out of the 8 occurrences.
So, the probability is:
P = 3/8
Hence, the probability the coin lands tails up exactly two times is 3/8
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