By using Euler's formula, find the number of edges of a polyhedron with 16 faces and 20 vertices
Answer:
34 edges
Step-by-step explanation:
Euler's formula for polyhedron states
F + V - E = 2
where F is number of faces, V, number of vertices, E number of edges
Here F = 16, V = 20, thus
16 + 20 - E = 2, that is
36 - E = 2 ( subtract 36 from both sides )
- E = - 34 ( multiply both sides by - 1 )
E = 34
the side lengths of a triangle are 6, 8 and 12 is this a right triangle
Answer:
No it is not a right triangle.
Step-by-step explanation:
We calculate the squares of the two littlest sides and add them :
6² + 8² = 36 + 64 = 100
We now calculate the square of the biggest side :
12² = 144
They are not equal, and thus, the triangle is not a right triangle.
Hope this helped! If so, plz mark brainliest.
Answer:
No, Because 6^2 + 8^2 = 12^2
Step-by-step explanation:
How can you solve one-variable equations using inverse operations?
Answer:
you can't, im sorry I don't knowbit but I do need points
What is the slope of the line?
Answer:
1
Step-by-step explanation:
What is the slope of the line below? *
(0.6)
(-30)
Answer:
2
Step-by-step explanation:
6x+18y=18 find y and z
6x + 18y = 18. Let us take x = 0
6(0) + 18y = 18
0 + 18y = 18
18y = 18
y = 18/18
y = 1
(0, 1) [x = 0, y = 1]
6x + 18y = 18. Let us take y = 0
6x + 18(0) = 18
6x + 0 = 18
6x = 18
x = 18/6
x = 3
(3, 0) [x = 3, y =0]
Infinite solutions can be found for x and y
Carlita planted 4 flowers in 6 minutes. About how many flowers can Carlita plant in 36 minutes?
Answer:
24
Step-by-step explanation:
[tex]\frac{4}{6} =\frac{x}{36}[/tex]
[tex]\frac{4}{6} *\frac{6}{6} =\frac{24}{36}[/tex]
[tex]x = 24[/tex]
Hope this helps and pls do mark me brainliest if you can:)
Answer:
24
Step-by-step explanation:
6*6=36, so she has 6 times as much time to plant with 36 minutes.
4*6=24, so she can plant 24 flowers in 36 minutes.
A CD player and a Nike sneaker together cost $ 444. The price of the CD player is double the price of the sneaker. How much do they each cost ?
Answer:
The CD player costs $296 and the Nike sneaker costs $148.
Step-by-step explanation:
From the information given, you know that a CD player and a Nike sneaker together cost $ 444, which can be expressed as:
x+y=444, where
x is the cost of the CD player
y is the cost of the Nike sneaker
Also, you know that the price of the CD player is double the price of the sneaker, which can be expressed as:
x=2y
You can replace this formula x=2y in the first one and solve for y:
2y+y=444
3y=444
y=444/3
y=148
Finally, you can replace the value of y in x=2y to find the value of x:
x=2(148)
x=296
According to this, the answer is that the CD player costs $296 and the Nike sneaker costs $148.
The function rule of a certain function is y = -3x + 1. If the input is 7, what is the output?
Answer:
-20
Step-by-step explanation:
y = -3x+1
if the input is 7, it means x=7 so substitute in the equation
y= -3*7+1 = -21+1= -20 which is the output
ILL GIVE BRAINLIST!! PLEASE HELP! Theres 2 answers!!
Answer:
Option B
Step-by-step explanation:
Well, now that I found out the prices per ounce, it has to be option B. Here is my reasoning:
Option A, when you do 2.98÷15.5, you get 0.19225...
Option B, is a different story. When you do the same process, it amazingly comes out to 0.1785...(this means that Option B is 0.2 cents (rounded) cheaper per unit, then Option A.
So its option B
Your welcome.
What is 1000+52603+58964+5236809+968532-68972100 = ?
Answer:
−62,654,192 is your answer
Answer:
-62,654,192
Step-by-step explanation:
Use a calculator!
Whar is an example of a transversal?
Answer: Lightwave forms the most important example of a transverse wave. In case of the light waves, particles travel perpendicular to the direction of the waves. It is the visible spectrum that is visible to the human eye and is responsible for the sense of sight.
Step-by-step explanation:
Answer:
♡ hi fairy ♡
An example of a transversal is line that intersects a system of lines.
hope I could help you. have a great day!
-madeline/madi
✧・゚: *✧・゚:・゚✧*:・゚✧・゚: *✧・゚:・゚✧*:・゚✧
Step-by-step explanation:
HEEELLLPP!
This is a test! I need the answer as soon as possible!
Whoever gets it right gets Brainliest!
Answer:
16
Step-by-step explanation:
f(x)=3x^(2)+2x,g(x)=5x-12, find f(2)= 16
The number of necklaces Lilly can make varies directly with the amount of time she spends making the necklaces. She can make 6 necklaces in ⅖ hour. How many necklaces can Lilly make in 5 hours?
Answer:
75
Step-by-step explanation:
Number of necklace= k × amount of time spent
6= k × 2/5
K = 6÷2/5
K= 6×5/2
K= 15
Therefore the number of necklace made in 5 hours can be calculated as follows
15 = number of necklace ÷ 5
Number of necklace = 15 ×5
Number of necklace = 75
Answer:
75
Step-by-step explanation:
No kema cuh
4x-2y = 2
3x-2y=-19
Help
Answer:
{x,y}={21,41}
Step-by-step explanation:
Step by Step Solution:
More Icon
System of Linear Equations entered :
[1] 4x - 2y = 2
[2] 3x - 2y = -19
Graphic Representation of the Equations :
-2y + 4x = 2 -2y + 3x = -19
Solve by Substitution :
// Solve equation [2] for the variable x
[2] 3x = 2y - 19
[2] x = 2y/3 - 19/3
// Plug this in for variable x in equation [1]
[1] 4•(2y/3-19/3) - 2y = 2
[1] 2y/3 = 82/3
[1] 2y = 82
// Solve equation [1] for the variable y
[1] 2y = 82
[1] y = 41
// By now we know this much :
x = 2y/3-19/3
y = 41
// Use the y value to solve for x
x = (2/3)(41)-19/3 = 21
Solution :
{x,y} = {21,41}
Answer: {x,y}={21,41}
Bob buys eggs and potatoes at the store.
• He pays a total of $25.92.
• He pays $2.57 for the eggs.
• He buys 5 bags of potatoes that each cost the same amount.
What equation can be used to determine the cost, x, of each bag of potatoes?
i need help with this ^
Step-by-step explanation:
18.....................
.MARY WAS TOLD TO RUN AROUND THE TRACK 5 TIMES BY HER COACH. ONCE AROUND THE TRACK IS 5/6 OF A MILE. MARY WAS ONLY ABLE TO RUN AROUND THE TRACK 4 1/3 TIMES. HOW MANY MILES TOTAL DID MARY RUN?
Answer:
3.61 miles
Step-by-step explanation:
Given that:
Length of track = 5/6 of a mile
Number times Mary was able to run around the track = 4 1/3 times
Total miles ran by Mary :
(Equivalent mile of the track * number of times Mary ran around the track)
5/6 of a mile * 4 1/3 times
5/6 * 13/3
= 65 / 18
= 3.611111 miles
Hence, total Number of miles ran by Mary is 3.61 miles
Write a function g whose graph represents a reflection in the x-axis of the graph of f(x)=1/2x−3.
1−2+3−4+5−6 + ⋯ +101−102
Answer:
-4
Step-by-step explanation:
1-2=-1+3=2-4=-2+5=3-6=-3+101=98-102=-4
I hope I am right
1.23 x 10 to the -8th power
Answer:
I don't know maybe you should search google. Best of Luck!
Step-by-step explanation:
Please help me I will give you brainleist if I figure out how
Solve the proportion 4/5 equals X over 15
A fruit punch recipe call for 30 cups of orange juice and 18 cups of pineapple juice. If you only have 1 cup of orange juice, how many cups of pineapple should you use.
Answer:
You should use 0.6 cups of pineapple juice if you only have 1 cup of orange juice.
Step-by-step explanation:
With the information provided about the recipe, you can use a rule of three to find the cups of pineapple you should use if you only have 1 cup of orange juice given that the recipe calls for 30 cups of orange juice and 18 cups of pineapple juice:
30 cups of orange juice → 18 cups of pineapple juice
1 cup of orange juice → x
x=(1*18)/30=0.6 cups of pineapple juice
According to this, the answer is that you should use 0.6 cups of pineapple juice if you only have 1 cup of orange juice.
Please help Im not good at this stuff and i just need some help please, it would very appreciated
Which of the following sets couldn't represent the sides of a triangle?
A.(1,2,4)
B.(5,5,5)
C.(7,8,7)
D.(9,10,11)
Answer:
A
Step-by-step explanation:
Opposite sides are equal
12x+18 rewrite the expression using distributive property
Answer:
ab+ac=a(b+c)
a is a common factor
find the greatest common factor
12x+18
12x=2*2*3*x
18=2*3*3
GCF=2*3=6
12x+18=
6(2x)+6(3)=
6(2x+3)
Step-by-step explanation:
Solve 1/2x−5=10−3/4x . Check your solution.
x=___
Answer
The answer is 12 for sure
Step-by-step explanation:
i just solved it like any other equation
1 i added 3/4 on both sides
2 then i added 5 on both sides
3 after you equation should look like 1 1/4x = 15
4 then i divided and it should be x = 12
pls mark brainliest
The value of x is "12".
Calculating the value of x:[tex]\to \frac{1}{2}x-5=10-\frac{3}{4}x \\\\\to \frac{1}{2}x+ \frac{3}{4}x=10+5 \\\\\to \frac{2+3}{4}x=15 \\\\\to \frac{5}{4}x=15 \\\\\to x=15 \times \frac{4}{5}\\\\\to x=3 \times 4\\\\\to x=12[/tex]
Therefore, the final value of x is "12".
Find more information about the x value here:
brainly.com/question/19793439
11-11-29 Daily work ( Go math 4.3)
Frank earns $8 per hour. Madison
earns $7.50 per hour. Frank started working after Madison had already earned $300. If these rates continue, will Frank’s earnings ever equal Madison’s earnings? If so, when?
Answer:
yes, and at 600 hours they are equal and at 601 Frank passes her.
Step-by-step explanation:
since frank has a higher salery/slope and Madison has a lower salary slope meaning even though Madison started out with more Frank will eventually pass her.
First, you gotta find the difference slope 8-7.5 so .5 then find the difference in starting points 300 and zero. then multiply the difference as a positive(make it reversed 1/2 to 2/1 ) so 2 times 300 equals 600.
Answer:
They will and it will be by the 600th hour. The equation is frank makes 8$ dollars per hour for n hours. That (at some point) is the same as what maddi makes, 7.50 per hour for n hours plus 300... sooo
8n=7.50n+300
Sub in n for 600 and it should cancel everything out and work :)
if you want me to re-explain let me know.