Wan has 22 bulbs of the same shape and size in a box. The colors of and amounts of the bulbs are shown below:
6 blue bulbs
9 red bulbs
7 orange bulbs
Without looking in the box, Wan takes out a bulb at random. He then replaces the bulb and takes out another bulb from the box. What is the probability that Wan takes out an orange bulb in both draws? (5 points)
Answers
Hope this helps buddy
Answer: A
Step-by-step explanation:
This type of question is compound probability and it involves independent variables because the outcome of 1 event doesn't impact the probability of the next one.
the probability of taking an orange bulb is 7/22. Since he put that bulb back in the box, the probability of taking an orange bulb again, doesn't change. So the "compound probability " is 7/22x7/22= 49/484.
Answer= A
Hope this helps :)) And Brainliest would be appreciated :)
Related Questions
Find the surface are of this figure
Answers
Answer:
If I am correct, I think the surface area is 448.
Step-by-step explanation:
First start by finding the area of all the sides
Front side. 12 x 10 = 120
2 triangle sides: 8 x 10 = 80, 80 x 2 = 160
Bottom side: 6 x 12 = 72
Back side: 8 x 12 = 96
Then add up the surface area
120 + 160 + 72 + 96 = 448
Btw I don't know if I am correct, but I think this is the way you find surface area.
pls answer I will mark brainliest
Answers
Answer:
1372 cubic ft.
Step-by-step explanation:
[tex]V=\frac{4}{3} \pi 7^3[/tex]
[tex]V=\frac{4}{3} \pi 343[/tex]
[tex]V=457\frac{1}{3} \pi[/tex]
Since pi is 3 to find the approximate answer, do:
[tex]V=457\frac{1}{3} (3)[/tex]
[tex]V=1372[/tex]
Hence, the volume of the sphere is approximately 1372 cubic ft.
Answer:
V = 1,372 ft³
Step-by-step explanation:
You have been given the equation necessary for calculating the volume of a sphere:
[tex]V = \frac{4}{3} \pi r^{3}[/tex]
In this formula, "V" represents the volume, "π" is the given value (3), and "r" is the radius. While you have not been given the radius, you have been given the diameter (14 ft). The radius is half of the diameter.
radius = diameter / 2
radius = 14 ft / 2
radius = 7 ft
Now, you can plug this value into the formula and simplify to find the volume.
[tex]V = \frac{4}{3}\pi r^{3}[/tex] <----- Volume formula
[tex]V = \frac{4}{3} * (3) *r^{3}[/tex] <----- Plug 3 in for "π"
[tex]V = \frac{4}{3} * (3) * 7^{3}[/tex] <----- Plug 7 in for "r"
[tex]V = \frac{4}{3} * (3) * (343)[/tex] <----- Solve 7³
[tex]V = 1,372 ft^{3}[/tex] <----- Multiply all the terms together
(a) Simplify x² − (x − m)(x + m). (b) Using your answer to (a), write down the value of 1023² - 1022 x 1024 without using a calculator.
Answers
Answer:
Step-by-step explanation:
3^4 + 4 ⋅ 5 = ____. (Input whole numbers only.)
Answers
Answer:
101
Step-by-step explanation:
3^4 = 3 * 3 * 3 * 3 = 81
4 ⋅ 5 = 4 * 5 = 20
3^4 + 4 ⋅ 5
= 81 + 20
= 101
Evaluate the power and multiply the numbers
What is the area of this figure?
_______ square kilometers
Answers
Answer:
90 square kilometers
Step-by-step explanation:
1. split the figure in small definite sections
2. find the areas of the smaller sections.
3. find the sum of the areas.
Step-by-step explaining
Split this figure into three different figures
The first figure will be 8x4 = 32
The second figure will be 8×6 = 48
The last figure is 2×5 = 10
Done we add 32+48+10= 90
FIRST CORRECT ANSWER GETS BRAINLIEST
Answers
Answer:
1092
Step-by-step explanation:
(12x34) x 2 + (12x3) x2 + (34x3) x2 = 408 x 2 + 36 x 2 + 102 x 2
=816 + 72 + 204
= 1092
(the numbers in brackets are the "net" areas)
A party hat has a height of 7 inches and a diameter of 6 inches. What is the volume of the party hat in cubic inches? Use 3.14 for pie.
Answers
Answer:
65.94 in³
Step-by-step explanation:
First, we need to determine to the shape, a party hat is a cone.
The volume formula that use to calculate the cone is 1/3hπr².
Notice: h is for height and r is for radius
Using this formula, we can easily set up the equation below:
1/3 · 7 · 3.14 · (6/2)² = 65.94 (cubic inches)
You must halved the diameter first (in this case, 6) and then square it.
So: The answer of this question is 65.94 in³
im not so good at math ;-;
Answers
Answer:
1. 660.52
2. 572.56
3. 283.53
4.254.47
5. 63.62
6. 380.13
Step-by-step explanation:
do πr²
r = radius
if you have a diameter like question 4 divide by 2 and you get radius
Answer:
1. A = 660.52 square units. C = 91.11 units.
2. A = 572.56 square units. C = 84.82 units.
3. A = 283.53 square units. C = 59.69 units.
4. A = 254.47 square units. C = 56.55 units.
5. A = 63.62 square units. C = 28.27 units.
6. A = 380.13 square units. C = 69.12 units.
Step-by-step explanation:
The equations for Area and Circumference of a circle are as follows:
A = πr², where r is the radius.C = 2πr, where r is the radius.You are given the radius (or diameter) of each circle which can be substituted into the above equations for r. Diameter is the entire length across the circle through the center, which is equal to 2(r).
1. A = π(14.5)² = 660.5198. The area is approx. 660.52 square units.
C = 2π(14.5) = 91.106. The circumference is approx. 91.11 units.
2. A = π(13.5)² = 572.555. The area is approx. 572.56 square units.
C = 2π(13.5) = 84.823. The circumference is approx. 84.82 units.
3. A = π(9.5)² = 283.528. The area is approx. 283.53 square units.
C = 2π(9.5) = 59.690. The circumference is approx. 59.69 units.
4. Diameter = 18; 18/2 = 9 = r. So, A = π(9)² = 254.469. The area is approx. 254.47 square units.
C = 2π(9) = 56.548. The circumference is approx. 56.55 units.
5. r = 9/2 = 4.5. So, A = π(4.5)² = 63.617. The area is approx. 63.62 square units.
C = 2π(4.5) = 28.274. The circumference is approx. 28.27 units.
6. A = π(11)² = 380.132. The area is approx. 380.13 square units.
C = 2π(11) = 69.115. The circumference is approx. 69.12 units.
What is the value of x and y please explain will give brainliest if you give me a good explanation!!
Answers
y = 120
30 x 4 = 120
120 + 120 = 240
240 + 120 = 360
Oscar and Ruth walk to school. Oscar walks 1/4 of a kilometre to school. His walk is 2/3 of the distance that Ruth walks to school. What is the total distance, in kilometres, that Ruth walks to school?
Answers
Help please!!
You might need to zoom in to see the photo better.
-You cant really see what 1 says but it says (The net below can be folded to make the triangular prism? Label the dimensions of the prism.)
And 8 says (Calculate the total area of the net and the surface area of the triangular prism from Problem 7. area net= surface area= ___ cm^2)
Answers
Answer:
1. Left side = 3 inches, Bottom side = 4 inches, Right side = 2 inches, Top side = 5 inches
2. A = 6 inches²
3. A = 8 inches²
4. A = 10 inches²
5. A = 12 inches²
6. A = 36 inches²
7. Left side = 5 cm, Bottom side = 12 cm, Right side = 4 cm, Top side = 13 cm
8. A = 180 cm²
Step-by-step explanation:
1. Label the dimensions of the prism:
Left side = 3 inches
Bottom side = 4 inches
Right side = 2 inches
Top side = 5 inches
2. Area of the red rectangle:
Formula:
LH = A (Length x Height = Area)
A = 3 x 2
A = 6 inches²
3. Area of the blue rectangle:
Formula:
LH = A (Length x Height = Area)
A = 4 x 2
A = 8 inches²
4. Area of the green rectangle:
Formula:
LH = A (Length x Height = Area)
A = 5 x 2
A = 10 inches²
5. (They gave the formula of the two triangles, but the question said green rectangle? They must've meant yellow triangles)
Area of the yellow triangles:
Formula:
2 (1/2 Bh) (2 (half of base x height))
A = 2(1/2 3 x 4)
A = 2(1/2 12)
A = 2(6)
A = 12 inches²
6. Total surface area of the triangular prism:
Formula:
LH + LH + LH + 2 (1/2 Bh) = Surface Area of the triangular prism (Area of the red rectangle + Area of the blue rectangle + Area of the green rectangle + Area of the yellow triangles = Total surface area of the triangular prism)
A = 6 inches² + 8 inches² + 10 inches² + 12 inches²
A = 36 inches²
7. Label the dimensions of the prism:
Left side = 5 cm
Bottom side = 12 cm
Right side = 4 cm
Top side = 13 cm
8. Total surface area of the triangular prism:
First, we can find the area of each shape, as we had previously to find the total area of the net and the surface area of the triangular prism.
Area of the red rectangle:
Formula:
LH = A (Length x Height = Area)
A = 5 x 4
A = 20 cm²
Area of the blue rectangle:
Formula:
LH = A (Length x Height = Area)
A = 12 x 4
A = 48 cm²
Area of the green rectangle:
Formula:
LH = A (Length x Height = Area)
A = 13 x 4
A = 52 cm²
Area of the yellow triangles:
Formula:
2 (1/2 Bh) (2 (half of base x height))
A = 2(1/2 5 x 12)
A = 2(1/2 60)
A = 2(30)
A = 60 cm²
Total surface area of the triangular prism:
LH + LH + LH + 2 (1/2 Bh) = Surface Area of the triangular prism (Area of the red rectangle + Area of the blue rectangle + Area of the green rectangle + Area of the yellow triangles = Total surface area of the triangular prism)
A = 20 cm² + 48 cm² + 52 cm² + 60 cm²
A = 180 cm²
Please help Me! I am confuzzled, I’m just a poor unfortunate kid I cannot be expected to do dis math! Ahhhhh
Answers
Explanation:
[tex]\rightarrow \sf 2x(x-4)(x+6)[/tex]
[tex]\rightarrow \sf (2x^2-8x)(x+6)[/tex]
[tex]\rightarrow \sf 2x^3 + 12x^2 - 8x^2 -48x[/tex]
[tex]\rightarrow \sf 2x^3 + 4x^2 -48x[/tex]
As there are three terms, the above polynomial is a cubic trinomial.
The regular price of a pair of jeans is $49.50. During a sale, the jeans were marked as 15% off. What was the approximate price of the jeans during the sale?
A.$3.30
B. $7.43
C. $42.08
D. $56.93
Answers
49.50x1.15=59.92
Therefore, the approximate price of the jeans during the sale was $56.93.
PLEASE HELP ASAP!!!!! a simulation by tossing a coin to model whether these puppies will be male or female. • Let heads (H) = female puppy • Let tails (T) = male puppy The results of the simulation are: 1. TTTT 6. HHHH 2. TTTT 7.HTHT 3. THTH 8. HHHH 4. HTTT 9. THTH 5. TTTT 10. HHHH What is the estimated probability that at least two of the puppies will be male?
Answers
Answer:
7/10 or 70%
Step-by-step explanation:
There has to be at least two T in each result of the simulation. This means you can also have 3 T's and 4 T's in the result.
These are the results that qualify as having at least two T's.
1. TTTT, 2. TTTT, 3. THTH, 4. HTTT, 5. TTTT, 7. HTHT, 9. THTH
That is 7 out of the 10 results which is 7/10 or 70%
find the value of x. please help!!!
Answers
Answer:22x+2
Step-by-step explanation: and th x's and y's
Answer: 22x+2
Hope it helps!!!
Calculate the median of the following list of numbers: 3, 5, 2, 10, 6, 3, 7, 3
Answers
Answer: 3
Step-by-step explanation: Rearrange the numbers ascendingly - 2, 3, 3, 3, 5, 6, 7, 10
3 is in the middle, so 3 is the median.
Answer:
4
Step-by-step explanation:
put them in order: 2, 3, 3, 3, 5, 6, 7, 10
the two in the middle are 3 and 5. Between 3 and 5 is 4.
PLEASE HELP ASAP!!! Which of the ten groups show at least one 8th grader?
A. 3, 7, 8, 10
B. 4
C. 1, 2, 5, 7, 8, 10
D. 1, 3, 4, 5, 6, 7, 8, 10
Answers
Answer:
1 3 4 5 6 7 8 10
Step-by-step explanation:
the numbers 7,8,9,0 represent 8th graders and the groups 1 3 4 5 6 7 8 10 all contain at least one of the numbers while the others groups dont meaning they are no 8th graders in groups 2 or 9
What is the volume of this figure?
Enter your answer in the box
ft³
Answers
Answer:
76
Step-by-step explanation:
(5x4x2)+(6x2x3)
Answer:
76 ft^3
Step-by-step explanation:
What is the volume of this figure?
these are two cuboids side by side, Volume = L * W * h, we find the volume of both and then we add.
4 * 2 * 8 = 64 ft ^ 3
2 * 2 * 3 = 12 ft ^ 3
64 + 12 =
76 ft ^ 3 (your answer)
9-2x=-8-4x Its for math
Answers
Answer:
x=-8.5
Step-by-step explanation:
Combine like terms:
9+8=-4x+2x
Solve:
17=-2x
Divide:
17/-2=x
-8.5=x
Hope this Helps!
Answer:
your answer is x=-8.5
Step-by-step explanation:
Put the following equation of a line into slope-intercept form, simplifying all fractions. 2x-10y=-20
Answers
Slope-intercept form:
y = mx + b
First, you must get y alone by subtracting 2x on both sides of the equation and then dividing both sides by -10:
-10y = -2x - 20
y = -2/-10x - 20/-10
Simplify: y = 1/5x + 2
Answer: y = 1/5x + 2
Check out the workings I have done in the document I have uploaded :)
Plis help with this problem! (Screenshot attached)
"Find the surface area of each pyramid. Round to the nearest tenth if necessary."
Answers
Answer: The total surface area is 633.9
Step-by-step explanation:
12.25 times 15.75, then divide by 2 = 96.46875 (this is the area of the triangle
Then times 4 = 385.875 (Because there are four triangles
15.75 times 15.75 = 248.0625 (The area of the square)
The sum is 633.9375
Rounded = 633.9
solve the inequality
1/5x+3>9
Answers
Answer:
Step-by-step explanation:
First, you would want to subtract the 3 on the left side to the right side to get the 1/5x to be alone.
1/5x>6
Next, we need to solve for x, by multiplying 5 to cancel out the 1/5.
(5)1/5x>6(5)
That leaves us with x>30
treat the inequality sign as an equal sign, that should help
Which faces of a rectangular prism always have the same area?
Answers
Answer:
A rectangular prism has six faces, commonly referred to as the base, top and four sides. The base and top always have the same area as do pairs of opposite sides
Step-by-step explanation:
Answer:
the base and the top, along with the opposite sides
Step-by-step explanation:
A rectangular prism has six faces, commonly referred to as the base, top, and four sides. The base and top always have the same area as do pairs of opposite sides.
What is the answer to 6 - 1 1/2
Answers
Answer:
the answer is 0.5
Step-by-step explanation:
11/2=5.5
6-5.5=0.5
Answer: Heyaa! ~
Your Answer is... 4.5 or in exact form its, 9/2
Step-by-step explanation:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
To find the least common denominator first convert all integers and mixed numbers (mixed fractions) into fractions. Then find the lowest common multiple (LCM) of the denominators. This number is same as the least common denominator (LCD).You can then write each term as an equivalent fraction with the same LCD denominator.Hopefully this helps you! ^^
Craig bought 8 folders and notebooks for school. Folders cost 0.50 cents and notebooks cost 1.50.Craig spent a total of 6 dollars. How many folders (f) and how many notebooks (n) did he buy?
Answers
Answer:
4 of each
Step-by-step explanation:
1.50 x 4 =6
.50 x 4 =2
he bought 4 folders and 4
6*0.50=3
2*1.50=3
So, 6 folders and 2 notebooks.
Are They Proportional? Graphing (Additional Instructions in Photo)
Screenshot the following photo and !!SHOW ALL WORK!!
Please help ASAP read my profile picture so hopefully you can understand how much I need help!
Answers
Answer:
khgfcvkhgcgvkgvgvbbbbbbbbbbnnnnnnnnnnnnnnnnnnnnnnnnnvvvvvvvvvvbnbvbnbvbnbvbnbvbnbvnbvbnbvbnbvbn
Step-by-step explanation because khgfcvkhgcgvkgvgvbbbbbbbbbbnnnnnnnnnnnnnnnnnnnnnnnnnvvvvvvvvvvbnbvbnbvbnbvbnbvnbvnbvbnbvbnbvbn = mhgcmgfmgcvbnvmbnbmvmbvnbvmnbvmbv
Match each expression on the left with an equivalent expression on the right. Some options on the right will be used more than once.
Answers
Answer:
See below
Step-by-step explanation:
9000/100=90
1680/20=84
84000/1000=84
2700/30=90
720/10=72
2. 1680/20 = 84
You could use a calculator easily for every answer
PLEASE HELP!!
Hhuhuhihihi
Answers
Answer: adjacent and complimentary
Step-by-step explanation:
adjacent because they are next to each other and complimentary because they together make 90 degrees
Answer:
The answers are B and D, I did this one.
Yw guys
pls answer my question I will mark brainliest
Answers
Answer:
V = 4000 cm^3
Step-by-step explanation:
The volume of the sphere is given by
V = 4/3 pi r^3
We are given the radius of 10 and are to use 3 for pi
V = 4/3 (3) * (10)^3
V = 4/3 *3 * 1000
V = 4000 cm^3
To find out if customers would prefer free texting or free internet access for their cell phones, a marketing executive at a cell phone company contacted every customer whose cell phone number started with "269" and "454". Identify the sampling method used.
Answers
Answer:
E commerce , E learning , Online games