If the number of the edges of the polyhedron is 14 and the vertices are 9. Then the number of the faces of the polyhedron is 7.
What is a polyhedron?A polyhedron is a solid made composed of polygons in three dimensions. It has vertices, flat faces, and straight edges.
We know the Euler's formula
F + V - E = 2,
where, F = number of faces, V = number of vertices, and E = number of edges
Edges: 14
Vertices: 9
F + 9 - 14 = 2
F = 14 + 2 - 9
F = 16 - 9
F = 7
Then the number of the faces of the polyhedron is 7.
More about the polyhedron link is given below.
https://brainly.com/question/2321456
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A table with a round top is cut in half so that it can be used against a wall after it is cut the edge along the wall is 6 feet what is the area of the table after it is cut in half give your answer in terms of pie
Answer:
9π ft²
Step-by-step explanation:
translate to math this is asking you to find the area of HALF of a circle with a diameter of 6 feet.
find the radius, half of the diameter, 3 feet
area of a circle is pi times the radius squared[tex]A=\pi r^{2} \\\A=\pi 3^{2} \\A=\pi 9\\=9\pi ft^{2}[/tex]
A rectangular prism measures 6 m long and 3 m wide. If the volume of the prism is 162 m*, what is the height of the prism
Answer: 9 m
Step-by-step explanation:
Volume of the rectangular prism
V=w*h*l
V=162m^3
162=6*3*h
162=18*h
h= 162/18=9
the height h=9 m
please help me I will give BRAINLY , 5 STARS and a THANKS
Answer:
By simplifying the expression we get
4/3
HELP PLEASE WILL MARK BRAINLIEST
Answer:
Wyatt must get a score of 150 on Exam B in order to do equivalently well as he did on Exam A.
Step-by-step explanation:
Let's calculate the test statistic of each score based on the mean and standard deviation of each test.
This statistic will show us how far from the mean, measured in standard deviations, Wyatt's test score is.
The formula for the test statistic is:
[tex]\displaystyle Z = \frac{x- \mu}{\sigma}[/tex] x = observed value[tex]\mu[/tex] is the population mean [tex]\sigma[/tex] is the population standard deviationLet's calculate the test statistic for each test.
Exam A:
[tex]\displaystyle Z = \frac{45-35}{5} = \frac{10}{5}= 2[/tex]Exam B:
[tex]\displaystyle Z = \frac{x-100}{25}[/tex]Since we want the test statistic to be the same for both exam A and exam B, let Z = 2 and solve for x for Exam B.
[tex]\displaystyle 2 = \frac{x-100}{25} \\ 50 = x - 100 \\ x = 150[/tex]Wyatt must get a score of 150 on Exam B in order to do equivalently well as he did on Exam A. This score means that Wyatt is 2 standard deviations from the mean score on Exam B as he scored on Exam A.
2) Rachel wanted to drink exactly three bottles of water each day, so she bought twenty-six
bottles when they were on sale. How many more bottles will she need to buy on the last
day?
Answer:
1
Step-by-step explanation:
Twenty-Six is not a multiple of three so you know it won't be 26. Counting by threes goes 3, 6, 9, 12, 15, 18, 21, 24, 27, 30. Twenty-seven is the closest number to 26 which is higher than 26. Twenty-six + 1 = 27. That means that 1 is the answer.
Answer:
1 bottles and the last day
the sum of a two digit number is 8 if the digits are reversed the number is increased by 54 what is this number?
Answer:
26
Step-by-step explanation:
2 + 6 = 8
62 - 8 = 54
guess and check
what would be a equivalent expression for 2^1/3
Answer:
2^1/3
We need to write the given expression in radical form
to convert expression into radical form we use formula
The denominator n in the fraction comes with the radical
numerator 'm' goes inside the radical
Answer:
[tex]\displaystyle \sqrt[3] 2[/tex]
Step-by-step explanation:
[tex]\dispaystyle \sqrt[m]n = n^{\tfrac 1m}~(m\neq0)[/tex]
What is the formula of alpha
square multiply beta square?
Answer:
Answer. (alpha + beta ) ^2 - 2 × alpha×beta
please mark me as brainlist
A tennis match requires that a player win three of five sets to win the match. If a player wins the first two sets, what is the probability that the player wins the match, assuming that each player is equally likely to win each set
Using it's concept, it is found that there is a 0.875 = 87.5% probability that the player wins the match.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem, these following outcomes result in the player winning the match:
Wins the third set, with 0.5 probability.Loses the third set but wins the fourth, each with 0.5 probability.Loses the third and fourth sets but wins the fifth, each with 0.5 probability.Hence, the probability that he wins the match is given as follows:
p = 0.5 + 0.5² + 0.5³ = 0.875.
More can be learned about probabilities at https://brainly.com/question/14398287
Which of the following numbers is not divisible by any positive integer except 1 and itself? A. 41 B. 49 C. 51 D. 57 E. 91
Answer:
A. 41 (it is a prime number)
GIVING BRAINLIEST TO WHOEVER CAN GIVE THE RIGHT ANSWER
Answer:
B ∪ C = (-∞, ∞)
B ∩ C = [1, 7)
Step-by-step explanation:
B ∪ C: The union of two sets or intervals is the set of elements which are in either set.
B ∩ C: The intersection of two sets or intervals is the set of elements which are in both sets.
Interval notation symbols
Square brackets [ ]: both endpoints are included in the set.
Round brackets ( ): both endpoints are excluded in the set.
Round, square ( ]: left endpoint is excluded and right endpoint is included in the set.
Square, round [ ): left endpoint is included and right endpoint is excluded in the set.
Given:
B = {z | z ≥ 1}C = {z | z < 7}Therefore,
B = [1, ∞)
C = (-∞, 7)
Therefore, B ∪ C = (-∞, ∞)
As z is either less than 7, or equal to or more than 1 then the intersection is:
B ∩ C = {z | 1 ≤ z < 7} = [1, 7)
Answer:
See below ~
Step-by-step explanation:
B ∪ C = {∞}As all numbers will be included, the union of the sets is equal to all real numbers (infinity)B ∩ C = {1, 2, 3, 4, 5, 6}Only the numbers that are greater than or equal to 1, but less than 7You have a car loan to pay for a car the interest rate is 4.5% annually for 6 years, calculate your monthly payment (retail price = 42,295)
Answer:
613
Step-by-step explanation:
42,295*0.045=1,903
42295+1903=44198
6*12=72
44198/72=613
At an internet cafe, there is a flat fee to log into a computer and an additional charge for each minute on the computer. The fee (in dollars) for using Mac for x minutes is given by M=0. 5+0. 07 x
1.1 Calculate the value of L the maximum consumption in category 3
Answer:butt
Step-by-step explanation:guy yes = 10 is yes so 3 = 10 x 10 = 100
Is the point (3,4) a solution to 3x+y=13 and x-7=7
Please help me this is 100% urgent
*urgent*
Answer:
D
Step-by-step explanation:
[tex]3(5z-3) = 15z -9[/tex]
Answer:
D. 15x - 9 and 3(5z - 3)
Step-by-step explanation:
5(5c + 4)
distribute 5 to each term:
25c + 4
25c + 4 ≠ 10c + 20 | not equivalent
____________________
3(4e - 2)
distribute 3 to each term:
12e - 6
12e - 6 ≠ 7e - 5 | not equivalent
____________________
4(4h + 6)
distribute 4 to each term:
16h + 24
16h + 24 ≠ 16 + 24h | not equivalent
____________________
3(5z - 3)
distribute 3 to each term:
15z - 9
15z - 9 = 15z - 9 | equivalent
Therefore, option D is the correct answer.
hope this helps!
I AM CONFUISED I ONLY GOT 1 MIN TIL MY COMPUTER DIES!!!!
(This only has 1 answer)
You owe some friends $25 and pay them back $18. Which number sentence shows this situation?
25 + 18
-25 + 18
-25 + (-18)
Answer:
-25 + 18
Step-by-step explanation:
its the last one :) good luck !!
.
.
The mean for the data in the dot plot is 5. What is the
absolute deviation for the data point at 7?
2
2.
3
4
5
6 7
8
Answer:The mean for the data in the dot plot is 5. What is the
absolute deviation for the data point at 7?
2
Step-by-step explanation:
If I make $50 very two weeks, how much will I make in 31 days.
Answer:
$110.71
Step-by-step explanation:
31 Days has 4 weeks and 3 days
4 weeks is 2 weeks twice meaning 100$
The three extra days would be 3/14 of 50$ which is $10.71
Therefore, the answer is $110.71
Answer:
$110.67
Step-by-step explenation
First find how much you make every day.
To do that, divide $50 by 14 days which is $3.57 per day.
Next, multiply $3.57 by 31 days which is $110.67
Aisha is ordering a taxi from an online taxi service. She has to pay a flat charge just to
order the taxi, and then has to pay per mile, depending on how far she travels. She
wrote an equation to represent her total cost, y = 2.8x + 2, where y represents the
total cost in dollars and cents, and a represents the number of miles she travels,
What could the number 2 represent in the equation?
Answer:
The flat charge
Step-by-step explanation:
The number 2 could represent the flat charge in the equation because a flat charge never changes. In the equation, the 2 (y-intercept) is the only term that does not change. The value of 2.8x depends on what the value of x is, and the value of y depends on what the value of 2.8x + 2 is. Therefore, 2 could represent the flat charge in the equation.
You have a Circle with a Radius of 3.5 what is the Radius?
ABF = EDG. GCF are equilateral. AG = 21 and CG 1/4 Find the total distance from A to B to C to D to E.
A. 112
B. 98
C. 84
D. 28
The information given in the triangle shows that the total distance from A to B to C to D to E will be C. 84.
How to calculate the triangle?From the information given, ABF = EDG, GCF are equilateral and AG = 21 while CG = 1/4.
The total distance from A to B to C to D to E will be:
= 21/CG
= 21 / 1/4
= 21/0.25
= 84
In conclusion, the correct option is 84.
Learn more about triangles on:
https://brainly.com/question/17335144
welcome back to another brainiest fair you be ask 1 question and if you get it right you get a glorious brainiest like the other people coming up today is...........
Answer:
Sleet
Step-by-step explanation:
Sleet falls as ice pellets.
the answer is sleet
hope it really helps...!!!
Solve the equation on the interval [0,2π).
8cos^2x+4cosx=0
Select all correct solutions.
0
π/3
π/2
2π/3
π
4π/3
5π/3
3π/2
11π/6
Answer:
π/2, 2π/3, 3π/2, 4π/3.
Step-by-step explanation:
8cos^2x+4cosx=0
4cosx(2cosx + 1) = 0
so cosx = 0, -1/2.
Therfore
When cos x = 0:
x = π/2, 3π/2
When cos x = -1/2:
x = 2π/3, 4π/3.
Answer:
π/22π/34π/33π/2Step-by-step explanation:
TTT
will give brainliest to first answer+20pts
In the figure shown, what is the measure of angle x?
Triangle ABC has measure of angle BAC equal to 30 degrees and the measure of angle ABC is equal to 75 degrees. The side BC of the triangle is extended till D. The angle ACD is labeled as x.
Answer:
105
Step-by-step explanation:
First find the third angle inside the triangle:
180 - 30 - 75 = 75
Then find x:
180 - 75 = 105
Please I need help it's do tonight
Answer:
use g o og le
Step-by-step explanation:
first, look then there are no options then use brain
Which transformation was applied to ABC to transform it to DEF?
Answer:
So the Answer will be D.
Step-by-step explanation:
Cuz if you look it up online it will give you words or maybe links that youu shouldn't look at cuz they don't really give it to you. It shows that ''A rotation turns each point on the preimage a given angle measure around a fixed point or axis. Each point on triangle ABC is rotated 45° counterclockwise around point R, the center of rotation, to form triangle DEF.'' So indee that D. is right. (I am only 11 and i am helping lol)
Eva is showing her work in simplifying (7. 3 – 7. 2) – 3. 8 + 3. 7. In which step did Eva make an error?
Step 1: (7. 3 – 7. 2) – 3. 8 + 3. 7
Step 2: 7. 3 + (–7. 2 – 3. 8) + 3. 7 (commutative property)
Step 3: 7. 3 – 11 + 3. 7
Step 4: 7. 3 + 3. 7 – 11 (commutative property)
Step 5: 11 – 11 = 0
$456 is divided between the telephone and electricity bills in a ratio of 2 : 1. What amount goes to the telephone bill?
what is the probability of it raining in mexico?
Answer:
do you want it like this or another way