Which set has the property of closure under
the operation of addition?
(1) {0,1,2}
(2) {x|x is an odd integer}
(3) {0, 1, 2, 3, ..., 10}
(4) {x|x is an even integer}
Answer:
it's (4)
The set of integers is closed under the operation of addition because the sum of any two integers is always another integer and is therefore in the set of integers.
in (4) set of all even numbers {2, 4, 6, 8, 10,......, inf.}
2+4=6 (element of the set)
4+6=10 (element of the set)
so the answer is (4) {x|x is an even integer}
Step-by-step explanation:
brainliest plz
PLS HELP
1. 72
2. 18
3. 36
What number is 0.01 less then 16?
Answer:
SAME AS WHAT HE SAYS
Step-by-step explanation:
The number which is 0.01 less then 16 is,
⇒ 15.99
We have to given that,
To find the number which is 0.01 less then 16.
Now, We can simplify the expression as,
⇒ 16 - 0.01
Subtract numbers,
⇒ 15.99
Therefore, The solution of expression is,
⇒ 15.99
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Given h(x)=-4x-5, solve for x when h(x)=7.
h(x) = -4x - 5
h(x) =7
equate the eqns
7 = -4x - 5
-4x = 12
x = -3.
Answer:
Given h(x) = -4x - 5, t
The value of x when h(x)=7 is -3
Step-by-step explanation:
h(x) is defined as -4x - 5. We set this formula equal to 7 (given), obtaining:
-4(x) - 5 = 7
By combining like terms we get:
-4x = 12, or x = -3
The time between a flash of lightning and the sound of its thunder can be used to estimate the distance from a lightning strike . The distance from the strike is the number of seconds between seeing the flash and hearing the thunder divided by 5 . Suppose you are 5 miles from a lightning strike . How many seconds are between the flash and thunder ?
Write t for the time between the flash and the thunder and d the distance. You have
Here d=11 miles thus t=55 seconds.
Ill Mark Brainest Use your answers above to find the total length of the part of the track that is made up of sides of the square. The answer above is 6.3 cm
Injured runners train on a special track at a rehabilitation center. The track is a square with a half circle on its left and right sides. The area of the square is 128 square feet. What is the length of the track? Use the table to help you answer the questions.
Square 11.02 11.12 11.22 11.32 11.42 11.52
Value 121.0 123.2 125.4 127.7 130.0 132.3
Answer:
Given:
The track is a square with a half circle on its left and right sides.
The area of the square is 128 square feet.
To find:
The length of the track.
Solution:
Let side length of the square be x.
Area of square is
Taking square root on both sides.
From the given table 127.7 is closed to 128. So, is 11.3.
Diameter of circle = Side of square = 11.3.
The track has 2 sides of the square and the distance around 1 complete circle(s).
Radius of circle is
Length of the truck is sum of length of square and radii of two circles.
Therefore, the total length of the track is 22.6 feet
Solve and graph the solutions of |4x| + 2 > 10. Write the solutions as a compound inequality. (please graph on a number line)
Create the equation for the line in the graph. (Press edit background to see it better)
giving brainiest
Answer:
y = 1/2x+1
Step-by-step explanation:
Which inequality is not true?
0.544<0.5
0.544>0.455
0.46<0.5
0.46>0.455
Answer:
0.544<0.5 is incorrect.
Step-by-step explanation:
20. The figures are similar. Find x.
Answer:
10
Step-by-step explanation:
You can see that both triangles are the same except for one thing: one is smaller. Since 7 is half of 14 and both triangles are similar, x stands for 10. That is because 10 is half of 20! :D
Answer:
X = 10
Step-by-step explanation:
The second figure is half of the first figure
14 divided by 2 = 7 and 20 divided by 2 = 10
So x = 10 in.
A phone company advertises a new plan in which the customer pays a fixed amount of $25 per month for unlimited calls in the country and $0.10 per minute for international calls. If a customer paid 100 dollars, how many international minutes did they use ?
Answer:
If a customer paid 100$ they used 750 international call minutes.
Step-by-step explanation:
If you are already paying 25 dollars that means you are paying 75 extra for international call minutes. With one minute being $0.10 that means 10 minutes is a dollar. From there you can multiply your dollar for 10 minutes by 75 which now adds 75 dollars which means we used 750 minutes. (This is my first time answering good luck :)
Answer:
750 international call minutes
Step-by-step explanation:
A hairstylist schedules 1/4 hour to trim a customers hair and 1/6 hour to style the customer's hair. The hairstylist plans to work 3 1/3 hours each day for 5 days each week. How many appointments can the hairstylist schedule each week if each customer must be trimmed and styled?
PLEASE SHOW WORK ON HOW YOU GOT THE ANSWER
GIVING BRAINLIEST
Answer:
40
Step-by-step explanation:
trim+style needs 1/4 + 1/6 = 5/12 hour
each day she can do (10/3) / (5/12) = 8 appointments.
So, that makes 40 appointments during the week.
Answer:
I know the question is already answered, but I just need the points :p
Step-by-step explanation:
They are indeed correct though.
simplify
−1/2(b+2)+3b
Answer:
-1/2 . 6b would be my awnser
Step-by-step explanation:
A board is 76 inches long. How long is it in feet and inches? A board is inches long. How long is it in feet and inches?
Answer:
6 ft 4in
Step-by-step explanation:
12 in = 1 ft
12 x 6 = 72
72 in = 6 ft
72 + 4 = 76
76 in = 6ft 4 in
Answer:
6ft. 4in.
Step-by-step explanation:
12 in. is a ft. and 6*12 = 72 so, 72 + 4 = 76
Damon does the following math problem:
4 • 7 • 1/4
4 • 1/4 • 7
1 • 7
7
Damon has used all of the following number properties except _____.
1. commutative property of multiplication
2. multiplicative identity
3. distributive property
4. multiplicative inverse
Answer:
Distributive Property
Step-by-step explanation:
Answer:
3) DISTRIButive property
Step-by-step explanation:
Technoblade is better. Tommyinnit is kinda annoying and timedeo is kinda irrelevant
The estimated average speed you found earlier in the lesson was 30 miles per hour. How does your estimated speed compare to the speed you just computed?
Answer in 2 complete sentences.
Divide the total distance traveled by the total time spent traveling. Your estimated speed should be reletively close to your calculated speed.
(please give brainliest)
An expression is written as m−5(m+3) +7m.
What is the value of the expression when m=x+1?
Answer choices:
A: 3(x−4)
B: 3(x−6)
C: 3(x−5)+1
D: 3(x+5)+1
10x + 8 = 2x - 16 What is x?
Answer:
x = -3
Step-by-step explanation:
10x + 8 = 2x - 16
10x - 2x = -16 - 8
8x = -24
x = -3
PLEASE MARK AS BRAINLIEST!!!!!Answer the question below thx
find 1/4 divided by 3 first build a model that shows 1/4 of the whole
Answer:
ig you do the model then see what happens? put 1/4 on the model?
Step-by-step explanation:
Answer:
What do we have to do?
Step-by-step explanation:
A fish swims 6 feet directly above a scuba diver. The fish suddenly dives to double its depth under the surface of the ocean. The fish dives to a depth of −42 feet.
What is the position of the scuba diver relative to the surface of the ocean?
Answer:—21 I believe I might be wrong Im in a rush so
Step-by-step explanation:
Representing the scenario as an equation, the position of the scuba diver relative to the surface of the ocean is 20 feets.
(x - 6) + 2(x - 6) = 42
x - 6 + 2x - 12 = 42
3x - 18 = 42
3x = 42 + 18
3x = 60
x = 60 / 3
x = 20
Hence, the position of the scuba diver relative to gvd surface of the ocean is 20 feets.
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Eden bought 15 tickets to a soccer game. The group rate saved her $4.75 per ticket. She paid a total of $307.50 for the tickets. What was the regular price of a ticket to the game?
Answer:
25.25
mutiply 15 × 4.75 then add that to 307.50 then divide that by 15
Answer:
25.25
I took the K12 test, and got it correct
A race car decelerates from 125m/s to 25m/s in 10 seconds. What is the racecars declaration?
HELP HELP HELP ME PLEASE !! GIVING BRAINLIEST
Eva wants to make 2 pieces of pottery. She needs 3/5 -pounds of clay for one piece and 7/10 -pounds of clay for the other piece. She has three bags of clay that weigh 4/5 pound each. How many bags of clay will Eva need to make both pottery pieces? How many pounds of clay will she have left over?
Answer:
she would have 3.375 full bags left over and 2.7lbs left over
Step-by-step explanation:
you convert 4/5 to .8 and multiply by 5 to get the total weight,4. you convert the amount needed 3/5 and 7/10 to .6 and .7. Add together to get 1.3. Do 4 minus 1.3. you get 2.7lbs left over. You divide 2.7 by .8, the amount in the bags to get 3.375 bags left over
Answer:
Pretty sure it is 1 and 1/10
first I added 3/5 and 7/10 to find the total clay she used.
she used 1 and 3/4lbs of clay for both pieces of pottery witch is 1.3.
She has 3 bags of clay that weigh 4/5 pound each so I multiplied 4/5 by 3 to get 2 and 2/5 witch is 2.4.
Since she was 2.4 lbs total and she used 1.3lbs I subtracted 1.3 from 2.4 to get 1.1.
Last I converted 1.1 to 1 and 1/10.
I hope this helps.
Which expression is equivalent to:
(h-5)+(6h-4)
A.7h-9
B.7h^2-9
C.7h+9
D.5h-7
A
Step-by-step explanation:
u have to add both hs and get 7h add both negative numbers and get negative 9
Please help, quick!
How many times does 1/64 go into 36 9/16?
Answer:
Step-by-step explanation:
its 10
Answer:
The answer is 10 :)
:) Hope this helps tell me if you need more help! :)
Attached is my question.
What is the total area of the glass in the pyramid arena? Explain how you got the answer please.
Answer: 888,000
Step-by-step explanation:
Base: 600 x 600 = 360,000
600 x 440 x 2 (there is 4 triangles and 2 makes 1 square. So there is 2 pairs so times 2)= 528,000
360,000 + 528,000= 888,000
Answer:
A(total) = 528,000 feet^2
Step-by-step explanation:
The slant height of each of the four triangular sides is given and is 440 feet. The length of the base of each is 600 feet. We apply the formula for the area of a triangle, which is A = (1/2)(base)(height):
Area of one triangular side: A = (1/2)(600 feet)(440 feet) = 132,000 feet^2.
The total glass area of the pyramid is thus four times this, or
A(total) = 528,000 feet^2
Does anyone know this answer
Answer:
The answer is B
Step-by-step explanation:
HELP PLS ITS FOR TOMRROW WAAAAAAA I DONT UNDERSTAND PLZ EXPlaiiin !! :(((