Answer:
I believe B and C are correct. Maybe another but I don't think so.
Kyle has 18 purple balls and 2 black balls in a bag. Kyle takes one ball at random from the bag, puts it back, and takes another ball from the bag. A tree diagram is drawn to represent this information. 18 20 18 20 purple 2 20 not purple 2 20 Submit Answer 18 20 2 20 purple not purple purple not purple Find the probability that Kyle takes at least one purple ball.
The probability that Kyle takes at least one purple ball is 0.9
What is probability?Probability is used to measure the likelihood of an event given a set of circumstances.
The probability that Kyle takes at least one purple ball is calculated by the formula P(A) = 1 – P(A’).
In this scenario, A is the event of taking at least one purple ball and A’ is the event of not taking any purple balls.
The probability of taking at least one purple ball (A) is calculated by subtracting the probability of not taking any purple balls (A’) from 1.
There are 20 balls in the bag, 18 of which are purple. This means the probability of not taking any purple balls (A’) is 2/20 = 0.1.
Therefore, the probability of taking at least one purple ball (A) is
1 – 0.1 = 0.9.
In conclusion, the probability that Kyle takes at least one purple ball is 0.9.
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Hurry!
The following is a function, true or false?
Answer:
Step-by-step explanation: true
Given that \(\frac{|z - 5i|}{|z + 5i|} = 1\) , show that z lies on the x-axis.
The proof that z lies on the x-axis is shown below
How to show that z lies on the x-axis.For z to lie on the x-axis, then the coordinate must be represented as (x, 0)
Given that
\(\frac{|z - 5i|}{|z + 5i|} = 1\)
We start by simplifying the given expression using the definition of the modulus of a complex number:
So, we have
\(\frac{|z - 5i|}{|z + 5i|} = \frac{\sqrt{(x - 0)^2 + (y - 5)^2}}{\sqrt{(x - 0)^2 + (y + 5)^2}} = 1\)
Where
z = x + yi or z = (x, y)
Squaring both sides of the equation above, we obtain:
\(\frac{(x - 0)^2 + (y - 5)^2}{(x - 0)^2 + (y + 5)^2} = 1\)
This gives
\(\frac{x^2 + (y - 5)^2}{x^2 + (y + 5)^2} = 1\)
By comparison, we have
\((y + 5)^2 = (y - 5)^2\)
Set y = 0 to test the equation
So, we have
\((0 + 5)^2 = (0 - 5)^2\)
25 = 25 --- true
The equation is true for y = 0
This means that
z = (x, 0)
Hence, z lies on the x-axis
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SHEET CAKES
--------------------------------------------
$36 Small (Feeds 12 people)
$46 Medium (Feeds 22 people)
$56 Large (Feeds 32 people)
--------------------------------------------
The new pastry chef at Jackson's Bakery specializes in Sheet cakes for parties. She sold 17 small, 11 medium, and 20 large sheet cakes in one week. How much money did Jackson's Bakery make in one week from sheet cakes?
Answer: $2,245 (I know it for this one but not the next one)
How many people would all of the sheet cakes sold in problem 3 feed?
--------------------------------------------------------------------------------------------------------
(Dont need to tell me the answer just tell the steps I need to do)
Answer:
The chef sold 17 small sheet cakes. One small sheet cake can feed 12 people, so the small sheet cakes she sold can feed 17*12 people, which is 204 people. Do this for the medium and large sheet cakes as well, and add them up, and you'll get the answer.
Step-by-step explanation:
Hope this helps!
Answer:
1086
Step-by-step explanation:
1. 7x12= 204(small cakes)
2. 11x22=242(medium cakes)
3.20x32=640(large cakes)
4. add all of the products up
so: 204+242+640
= 1086
This should be correct.
\((3x^{3} y^{2} z)(2xy^{5} z^{5}\)
- BRAINLIEST answerer ❤️
A race car traveled for 2 1/2hours with an average speed of 132 5/8 km per hour. Find the total distance it covered.
Answer: The total distance covered by the car is 331 9/16 km.
Step-by-step explanation:
We know that, speed= distance/time taken
Therefore, distance = speed x time taken
= 132 5/8 x 2 1/2
= 5/2 x 1061/8
= 5305/16
= 331 9/16 km
Therefore, total distance is 331 9/16 km.
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EASY QUESTION FOR 10 POINTS!
A clothing designer has a square piece of fabric with a length of 16 inches. The designer cuts a circle with the largest area possible from the square.
To the nearest tenth, what is the circumference of the circular piece of fabric? (Use 3.14 for π)
Answer choices-
50.2 inches
100.5 inches
201.0 inches
803.8 inches
Answer:
pentagon; concave; irregular. 2. SOLUTION: The polygon has 9 sides. A polygon with ... shape of a polygon with 6 sides of alternating length. ... Round to the nearest tenth. 6. ... Area of square is 16 ft. 2 ... So, the shape which uses the most of the fabric is the ... The perimeter of the square tablecloth is 160 inches.
(either 100.5 inches or 201.0 inches
explanation:
and circles, including solving for unknown lengths when the area or perimeter is given. ... Students use prior knowledge to find the area of circles, semicircles, and ... and counting the grid squares and cutting each in half and counting the squares. ... If Marjorie wants to make six placemats, how many square inches of fabric .
What is the value of a so the line that passes through the points ( a, 15 ), ( -5a-12 , 4) has an undefined slope?
Answer:
(
a
,
15
)
=
(
−
5
a
−
12
,
4
)
=
Step-by-step explanation:
a = -5.4
The slope of a line passing through the points (x₁, y₁) and (x₂, y₂) is given as:
\(Slope = \frac{y_2-y_1}{x_2-x_1} \\\)
For the line passing through points ( a, 15 ), ( -5a-12 , 4)
x₁ = a, y₁ = 15, x₂ = -5a-12, y₂ = 4
Substitute these points into the slope formula above:
\(Slope = \frac{4-15}{(-5a-12)-15} \\Slope = \frac{-11}{-5a-27}\\\)
For the slope to be undefined, the denominator must be zero.
That is:
-5a - 27 = 0
-5a = 27
a = -27/5
a = -5.4
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Use the graph to find the value of f(x) when x = 6 for the function f (x) = 1/3x-3
The value of the function f(6) on the graph of the linear equation is -1
What are linear equations?Linear equations are equations that have constant average rates of change.
Note that the constant average rates of change can also be regarded as the slope or the gradient
How to determine the value of the function?The equation of the function is given as
f(x) = 1/3x - 3
The graph of the function is added as an attachment
From the graph, we can see that when x = 6, the value of the function is -1
This means that f(6) = -1
Hence, the value of the function f(6) on the graph of the linear equation is -1
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A tank is full of water. Find the work (in ft-lb) required to pump the water out of the spout. Use the fact that water weighs 62.5 lb/ft3. (Round your answer to the nearest whole number.) 3 ft6 ft12 ft A frustum of a cone with a spout is given. The smaller radius is 3 ft, the larger radius is 6 ft, and the height is 12 ft.
The work required to pump the water out of the spout is approximately 64,307,077 ft-lb
To find the work required to pump the water out of the spout, we need to calculate the weight of the water in the tank and then convert it to work using the formula: work = force × distance.
First, let's calculate the volume of water in the tank. The frustum of a cone can be represented by the formula: V = (1/3)πh(r1² + r2² + r1r2), where r1 and r2 are the radii of the two bases and h is the height.
Given r1 = 3 ft, r2 = 6 ft, and h = 12 ft, we can calculate the volume:
V = (1/3)π(12)(9 + 36 + 18) = 270π ft³
Now, we can calculate the weight of the water using the density of water:
Weight = density × volume = 62.5 lb/ft³ × 270π ft³ ≈ 53125π lb
Next, we convert the weight to force by multiplying it by the acceleration due to gravity (32.2 ft/s²):
Force = Weight × acceleration due to gravity = 53125π lb × 32.2 ft/s² ≈ 1709125π lb·ft/s²
Finally, we can calculate the work by multiplying the force by the distance. Since the water is being pumped out of the spout, the distance is equal to the height of the frustum, which is 12 ft:
Work = Force × distance = 1709125π lb·ft/s² × 12 ft ≈ 20509500π lb·ft ≈ 64307077 lb·ft
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sara recycled 541 cans this month her mom recycled 479 how many cans did the recycled altogether?is this amount even or odd how do you know
Answer:
1020 Even
Step-by-step explanation:
541+479=1020 Ends in 0 ... even
Answer:
1020 even
Step-by-step explanation:
571 + 479
Maria went to the store to buy new shirts for school. Each shirt cost $8.79. Maria buys 12 shirts for school. How much will Maria spend on all of the shirts?
Answer:
Maria will spend $105.48 on all of the shirts.
Step-by-step explanation:
Multiply 8.79 by 12 :)
Answer:
105.48
Step-by-step explanation:
If each shirt costs 8.79 then you need to multiply 8.79 by 12 because she bought 12 shirts to get 105.48. I hope this helped!
Y=x^3-4x^2-20x+48 use the rational zero theorem
The roots of the given polynomial using the rational zero theorem are; 2, -4 and 6.
How to use the rational zero theorem?We are given the polynomial;
y = x³ - 4x² - 20x + 48
Since all coefficients are integers, we can apply the rational zeros theorem.
The trailing coefficient (the coefficient of the constant term) is 48
Find its factors (with the plus sign and the minus sign): ±1, ±2, ±3, ±4, ±6, ±8, ±12, ±16, ±24, ±48.
These are the possible values for p.
The leading coefficient (the coefficient of the term with the highest degree) is 1.
These are the possible rational roots:
±1, ±2, ±3, ±4, ±6, ±8, ±12, ±16, ±24, ±48.
Checking the possible roots: if a is a root of the polynomial P(x), the remainder from the division of P(x) by x - a should equal 0 (according to the remainder theorem, this means that P(a)=0
Plugging in those values, the only ones that yield P(a) = 0 are; 2, -4 and 6.
Thus, these are the roots of the given polynomial.
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please help with this question ASAP i will mark brainliest
Answer: -15 hope this helped
Step-by-step explanation:
Solve for the variable. 4/5 = 20/?
A. x = 5
B. x = 16
C. x = 20
D. x = 25
Answer:
Its 25
Step-by-step explanation:
It is 25 as 4x5 is 20 so u have the denominator so u do the same for 5 , 5x5 is 25 so 4/5=20/25
A candy store owner used a cylindrical wooden log as a bench in their store. The height
of that log was 2
feet. The diameter of its base was 1.25
feet. If it costs $7.20
per square foot to paint that log at every side, how much approximately will it cost the
store owner? The total surface area of the right circular cylinder is 2nrh+2rr2
, where, r
is the radius of the base of the cylinder and, h
is the height of the cylinder
Answer:
Step-by-step explanation:
its 60
What’s the frequency?
The total frequency of the particular 5 classes (67, 68, 69, 70, and 71) will be 19.
What is the frequency?The quantity of times a specific data value occurs is known as its frequency. We use f to represent a data value's frequency. For instance, grade A is said to have a frequency of five if five students received an A in science.So, the frequency for 5 classes:
Frequency of 67: 4Frequency of 68: 6Frequency of 69: 4Frequency of 70: 4Frequency of 71: 1The total frequency of these particular 5 classes will be:
4 + 6 + 4 + 4 + 1 = 19Therefore, the total frequency of the particular 5 classes (67, 68, 69, 70, and 71) will be 19.
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Question Help
Challenge Last month, Dani's neighbors paid her to take care of their fish when they went on
vacation. She spent $4 of her earnings on an afternoon snack and $12 on a new book. Afterward,
she had at most $7 left. How can you best describe how much Dani's neighbors paid her?
Select the correct choice below and fill in the answer box to complete your choice
Answer:
They paid her $23 at most
Step-by-step explanation: 4+12+7=23
44 = -4(1 + 4v) + 4v how do I break down and solve???
Answer:
-4=v
Step-by-step explanation:
44 = -4-16v+4v
44=-4-12v
48=-12v
-4=v
The figure on the right is a scaled copy of the figure on the left. R O Q P K J M L Which side in the figure on the right corresponds to segment PRPR? ML What is the scale factor?
The scaled copy of a shape is the enlarged or compressed copy of the shape.
The side that corresponds to segment PL is STThe scale factor is 1/3From the figure (see attachment), we have the following similar sides:
Sides WR and NOSides RV and OMSides VU and MQSides UT and QLSides TS and LPThis means that the corresponding segment of segment PL is segment ST
Also, the side of the larger polygon is three times the sides of the smaller polygon.
This means that, the scale factor is 1/3
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Doug deposits $4,998 into an interest-bearing account that is compounded continuously. He decides to not deposit or withdraw any money after the initial deposit. The following function represents the balance of the account, which is compounded continuously at a rate of r, after t years.
Which expression approximately represents the rate, r, at which the account is continuously compounded if the account balance is $6,614 after 7 years?
A.
B.
C.
D.
Answer:
interest rate = 0.0400215403 or 4.00215403% or 4%
Step-by-step explanation:
formula
final amount =
initial amount times e^(interest rate times time)
6614 = 4998 times e^(interest rate times 7)
(6614 ÷ 4998) = e^(interest rate times 7)
1.32332933173 = e^(interest rate times 7)
ln means natual log
ln(1.32332933173) = ln(e^(interest rate times 7))
0.28015078214 = interest rate times 7
0.28015078214 ÷ 7 = interest rate
0.0400215403 = interest rate
utub dr ashley godbold
investopedia
⚠️HURRY PLZ⚠️
How many edges does the figure have?
O3
04
05
06
mrs. freeman is paying for a $20 meal. she has a 15% off coupon for the meal. after the discount , a 7% sales tax is applied. what does mrs freeman pay for the meal
Answer: $18.19.
You'll have to set this up as two separate problems. First, we want to take 15% off the original $20 bill. To do this, you're going to multiply 20 by .15, which gives you $3. So, 15% off $20 is $17.
Now, we want to find 7% of the new bill, so we're going to multiply 17 by .07 to get $1.19, and add it to the $17, making the final bill $18.19. You could also multiply $17 by 1.07 to get your final total without the extra step in the middle, but only do that once you're comfortable with the math.
Find the volume of this cylinder.
Round to the nearest tenth.
r = 3 cm
3cm
V = [?] cm³
The volume of the given cylinder is 84.8 cm³.
Given: Radius of cylinder, r = 3cm Height of cylinder, h = 3cm
Formula used: Volume of cylinder = πr²hπ is a constant and is approximately equal to 3.14.
Volume of cylinder = πr²h= 3.14 x 3² x 3= 84.78 cm³ (rounded to the nearest tenth)= 84.8 cm³
Therefore, the volume of the given cylinder is 84.8 cm³.
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Total Cost of Computer Repair = $1,444.50
Shipping = 2 percent of Total Cost
If Sarah wanted to include a 15 percent gratuity, based on the total cost of the computer repair, excluding shipping, how would you find her new total cost?
Answer:
Its D
Step-by-step explanation:
0.02 ($1,444.50)
Answer:
D
Step-by-step explanation:
Can someone please help
Me with this?
1. The measure of h = 34°
2. The angle pairs is vertical angles.
What are Vertical Angles?Vertical angles are pairs of angles that are opposite each other and are formed by the intersection of two lines or two line segments. The angles are formed at the point where the lines intersect, and they have the same vertex but different sides.
1. h and 34 degrees are vertical angles, therefore:
h = 34°
2. The angle pairs of h and 34 degrees is vertical angles, therefore, the angles will have the same measure.
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2x + 5 = 25
NEED HELPL!!!!!
Answer:
10
Step-by-step explanation:
2x+5=25
25-5=20
20/2=10
Mallory's Border Collie had 23 puppies in 4 litters. Determine the rate for a ratio of the two different quantities. 4 over 23 puppies per litter 23 over 4 puppies per litter 23 over 27 puppies per litter 1 over 4 puppies per litter
Answer: The rate for a ratio of puppies per litter is the number of puppies divided by the number of litters.
In this case, Mallory had 23 puppies in 4 litters. So the rate for the ratio of puppies per litter is:
23 puppies / 4 litters = 5.75 puppies per litter (rounded to two decimal places)
Therefore, none of the options given in the question is the correct rate for the ratio of puppies per litter. The closest option is "4 over 23 puppies per litter", but this represents the ratio of litters per puppy rather than the ratio of puppies per litter.
Step-by-step explanation:
The rate for a ratio of the two different quantities is 23/4 puppies per litter. Therefore, option B is the correct answer.
Given that, Mallory's Border Collie had 23 puppies in 4 litters.
Here, the unit rate = Number of puppies/Number of litters
= 23/4 puppies per litter
Therefore, option B is the correct answer.
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The_______may be the average of 2 values in a data set.
A. range
B. mode
C. median
Answer:
C. median
Step-by-step explanation:
The median is the middle value of a set of data containing an odd number of values, or the average of the two middle values of a set of data with an even number of values.
A quality control inspector is testing microprocessor chips made during a single day by a new machine to determine the proportion of defective chips. She selects an SRS of 80 chips from the 3000 chips produced by the machine on that day. it turns out that six of the chips are defective. Which of the following conditions for constructing a confidence interval for the proportion of defective chips has been violated?
A. np>10 and n(1-p) > 10
B. An SRS has been taken from the population of interest.
C. The population is at least 10 times the size of the sample.
D. The population is approximately Normally distributed.
E. There appear to be no violations.
Answer:
The answer is "Choice A".
Step-by-step explanation:
\(\to \hat p = \frac{6}{80} = 0.075\\\\\to n \hat p = 6 \ngeq 10\)
In this question, "choice A" violates the population size at a minimum of ten times the magnitude including its sample, and therefore does not violate its requirement that is the sample, which was taken in change.