Answers
Answer:
1)14d + 21 = 7(2d + 3)
3) 8(6q - 9) = 48q - 72
4)16 + 4w = 2(2w + 8)
Answer:
The third one and the 4th one
Step-by-step explanation:
Related Questions
A pair of shoes cost $16. What is the price of the shoes after a 30% discount?
Answers
Answer:
$4.80
Step-by-step explanation:
$16×30%
= $16×(30/100)
=$16×0.3
=$4.80
The probability of the number of defective circuit boards in a shipment is given in the tables for two different companies. Company A A 5-column table has 2 labeled rows. The first row is labeled Number defective (x) with entries 0, 1, 2, 3. The second row is labeled P (x i) with entries 0.21, 0.30, 0.41, 0.08. Company B A 5-column table has 2 labeled rows. The first row is labeled Number defective (x) with entries 0, 1, 2, 3. The second row is labeled P (x i) with entries 0.18, 0.32, 0.28, 0.22. What is the expected number of defective circuit boards for company A? What is the expected number of defective circuit boards for company B? Which company should be chosen for purchasing circuit boards? Explain.
Answers
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.
Learn more about Expected value:
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Question #5: You decided to paint one of the walls in the dining room the color blue. The shape of the wall is shown below. One gallon of paint covers 50 square feet. The wall will need two coats of paint. How many gallons of paint will you need to buy?
Total area of the wall:
Gallons of paint needed:
Answers
Answer:
Step-by-step explanation:
Draw a horizontal line from the top corner of the left wall to the right wall. Now you have a rectangle on the bottom 8’x10’ (80 square feet) and a triangle on the top with a height of 5’ and a base of 8’. 1/2 base times height =20. You need to paint 100 sq feet so you need 2 gallons.
need the answer to this
Answers
Answer:
the second answer choice i think
Step-by-step explanation:
the angles of the quadrilateral are 135º, 135º, 45º, 45º which is the same as the answer choice
you ordered a laptop from a company in alaska. The laptop costs $150. they charge you 15% off the cost of the laptop to ship it. how much will you pay for shipping
Answers
Answer:
$127.5
Step-by-step explanation:
150*15%=22.5.
150-22.5=127.5
Don't buy this, totally not worth it.
Answer:
$22.5
Step-by-step explanation:
We will pay 15% of 150 for shipping: 150 * 0.15 = 22.5
PLEASE GIVE BRAINLIEST MEANS ALOT
Work out the size of an exterior and an interior angle of a regular 18-sided polygon.
Answers
Answer:
160 and 20 degrees
Step-by-step explanation:
Kevin needs to buy some cardboard to build a box 11 inches long, 7 inches wide, and 10 inches high. How much cardboard is needed to build the box?
Answers
Answer:
770 inches of cardboard is needed to build this box
Step-by-step explanation:
Use the formula for cubes B x W x H
The base of the cube will be 7 inches the length is 11 inches, and the height is 10 inches. Then, we multiply.
7 x 11 x 10 = 770
What type of triangle is this triangle?
acute isosceles
obtuse isosceles
Right isosceles
acute scalene
Answers
it has 2 congruent sizes, no right angles and seems two big to be acute
Answer:
obtuse isosceles
Step-by-step explanation:
An obtuse triangle has one angle measuring more than 90º but less than 180º (an obtuse angle). It is not possible to draw a triangle with more than one obtuse angle. Note: It is possible for an obtuse triangle to also be scalene or isosceles. An equiangular triangle has three congruent angles.
I need help with this question please help me
Answers
The -1/2x is the slope or the rise/rub
The -3 is the y-intercept
So start by placing the y-intercept (0,-3), then from there place the slope (-1/2), since the slope is negative instead of going up one and two to the left you are going to go down one and two to the right, then place a point and repeat. After repeating 2-3 times you should be able to connect the points in order to make a line. If you have any questions let me know!
A standard NBA basketball has a radius of about 4.7 inches. What is the volume of an NBA basket ball? Use 3.14 for pi, and round your answer to the nearest tenth (one decimal place)
Answers
Answer:
V≈434.89cu. in.
https://socratic.org/answers/407738
Step-by-step explanation: MRK ME BRAINLIeST PLZZZzz
the link is not fake just copy and paste it
Answer:
434.9
Step-by-step explanation:
20 points
3. The half-life of Co-60 is 5.3 years. If the initial mass of the sample is 1
kg, how much will remain after 15.9 years.
Answers
Answer:
0.125kg
Step-by-step explanation:
an equation can be made from teh problem
f(x)=1(0.5)^(x/5.3)
x is the amount of years
plug in 15.9 for x
f(15.9)=0.125
What is the value of the expression -9 x 2.2?
Answers
PLEASE HELP!
How do you find the mean or the range of a histogram?
Answers
Answer:
B
Step-by-step explanation:
My good sir will I lie to you
dwarf sea horse swims at a rate of 51.68 feet per hour. Convert this speed to inches per minute.
Answers
Answer:
10.34 inches per minute.
Step-by-step explanation:
have a good day :)
Sharon needs 3 pounds of turkey for every 2 people
that are attending her dinner party.
How many people can she feed with 30 pounds of
turkey?
Answers
Answer:
20
Step-by-step explanation:
30 ÷1.5
each person eats 1.5 pounds
Mrs. Alberts has two seventh grade math classes this year. They took their final exam, and Mrs. Alberts just finished grading them. She made a box-and-whisker plot for each class in order to compare their results.
Analyze the box-and-whisker plots from above and then select the following comparative inferences that are true. Select all that apply.
1. The interquartile range of Class A is about twice as large as the interquartile range of Class B.
2. There is very little overlap in the two data sets.
3. The median of Class A is about 5 points higher than the median of Class B.
4. The range of Class B is about 12 points less than the range of Class A.
5. A student in Class B had the highest score of both classes.
6. In general, the students from Class B scored better than the students from Class A.
Answers
Answer:
these are true = 1, 3, 5
Step-by-step explanation:
overall class a scored better than class b
they're more students in class a compared to class b
Give a algebraic expression for the statement below
When a number x is divided by 8 the result is 5
Answers
X/8=5
The value of x is
X=40
Select the letter of the correct answer. A museum in South Africa uses paintings of right-angled triangles to teach children about the Pythagorean Theorem: A squared + B squared = C squared Let's say that A = 4 and B = 3. Based on the theorem, what is the value of C squared? Choose the correct expression. A 42+
32 B (4 x 3)2 C (4 + 3)2 D 4 + 3
Answers
h + 9.2 = -9.2 what is h =
Answers
Answer:
h = - 18.4
Step-by-step explanation:
h + 9.2 = - 9.2
h + 9.2 - 9.2 = - 9.2 - 9.2
h = - 18.4
Answer:
-18.4
Step-by-step explanation:
Fixed it : )
For which function is it true that y →- ∞ as x →∞
Answers
Answer:
y = -√(x - 6)
Step-by-step explanation:
The first choice on the left
y = -√(x - 6)
The larger x gets
the more negative y becomes
Rational functions are functions written as fractions. The correct function is [tex]y=-\sqrt{x-6}[/tex]
Rational functionsRational functions are functions written as fractions.
According to the question, we are to select the function for which as y tends to minus infinity, x will tend to positive infinity.
For the function [tex]y=-\sqrt{x-6}[/tex]
Substitute y = -∞ into the equation
[tex]-\infty=-\sqrt{x-6}\\\sqrt{x-6} = \infty\\x-6=\infty\\x=\infty+6\\x=\infty[/tex]
Hence the correct function is [tex]y=-\sqrt{x-6}[/tex]
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Without enzymes it would be a lot more difficult to digest and breakdown the food we eat.
True
False
Answers
Answer:
True
Step-by-step explanation:
Enzymes are needed to breakdown food in the mouth and stomach
Find the probability of each event.
A politician is about to give a campaign speech and is holding a stack of thirteen cue cards, of which the first 3 are the most important. Just before the speech, she drops all of the cards and picks them up in a random order. What is the probability that cards #1, #2, and #3 are still in order on the top of the stack?
Answers
Answer:
The probability that cards # 1, # 2, and # 3 are still in order on the top of the stack is 0.045%.
Step-by-step explanation:
Since a politician is about to give a campaign speech and is holding a stack of thirteen cue cards, of which the first 3 are the most important, and just before the speech, she drops all of the cards and picks them up in a random order, to determine what is the probability that cards # 1, # 2, and # 3 are still in order on the top of the stack, the following calculation must be performed:
1/13 x 1/13 x 1/13 = X
0.076 x 0.076 x 0.076 = X
0.00045 = X
0.00045 x 100 = 0.045
Therefore, the probability that cards # 1, # 2, and # 3 are still in order on the top of the stack is 0.045%.
According to the histogram, how often has Illinois had between 19 and 36 tornadoes in the same year?
Answers
Answer:
9 times
Step-by-step explanation:
Answer:
9 times
Step-by-step explanation:
i got 100%
Guys if there are 5 cookies and my friend named Jake ate 5 cookies how much would I have left??
Answers
Answer:
0 none jake ate them all
Step-by-step explanation:
Answer:
Step by step explanation
none
5/8 + 3/4
—————
-2/3 - 5/6
Help please
Answers
Answer:
-11/12
Step-by-step explanation:
Which system of equations has infinitely many solutions?
A
4x+2y=8
4x−2y=8
B
4x−2y=8
−4x+2y=−8
C
4x+2y=8
4x+2y=10
D
4x+2y=8
−4x−2y=−10
Answers
Answer: B.
[tex]4x - 2y = 8\\-4x + 2y = -8[/tex]
Step-by-step explanation:
Let's solve your system by elimination.
4x−2y=8;−2x+2y=6
Add these equations to eliminate y:
4x-2y=8
-2x+2y=6
2x=14
Substitute 7 for x in 4x−2y=8:
(4)(7)−2y=8
−2y+28=8 (Simplify both sides of the equation)
−2y+28+−28=8+−28 (Add -28 to both sides)
−2y=−20
−2y/−2=−20/−2 (Divide both sides by -2)
y=10
one solution of x^2 - 64 = 0 is 8. what is the other solution
Answers
Given:
The equation is:
[tex]x^2-64=0[/tex]
One solutions is 8.
To find:
The other solution of the given equation.
Solution:
We have,
[tex]x^2-64=0[/tex]
It can be written as:
[tex]x^2-8^2=0[/tex]
[tex](x-8)(x+8)=0[/tex] [tex][\because a^2-b^2=(a-b)(a+b)][/tex]
Using zero product property, we get
[tex]x-8=0[/tex] and [tex]x+8=0[/tex]
[tex]x=8[/tex] and [tex]x=-8[/tex]
It is given that the one solutions is 8.
Therefore, the other solution is -8.
Write each percent as a fraction as a decimal.
1. 222% 2. 0.9%
Answers
Answer:
222/100
9/1000
Please help I have 15!!!!!!!
Answers
Answer:
True
Step-by-step explanation:
x^a = b
x^( a / a ) = b^( 1 / a )
x^1 = b^( 1 / a )
x = b^( 1 / a )
Given f(x) = 2x + 1 and g(x) = 2 ^ (x - 2) What is f(4) - g(5)
Answers
Answer:
the answer is on picture
Step-by-step explanation:
i hope u understand lol