Answers
Answer:
3.
Step-by-step explanation:
3m^2-3n^2= 3(m^2-n^2) = 3 (m+n)(m-n)
6m-6n= 6 (m-n)
3(m+n)~(m-n)~/6~(m-n)~ = (m+n)/2
Related Questions
Given the equation (x - 13) ^ 2 + y ^ 2 = 64 identify the center and radius
Answers
Answer:
radius is 8; center is at (13, 0).
Step-by-step explanation:
Compare the given (x - 13) ^ 2 + y ^ 2 = 64 to:
(x - h)^2 + (y - k)^2 = r^2. (h, k) represents the center
and r the radius.
Since 64 = r^2, r = the radius = 8 units = r
We also see that h = 13 and k = 0.
Thus, the center of the given circle is (13, 0).
78% of the class completed their homework last night. What fraction of the class completed their homework?
Answers
Answer:
[tex]\frac{39}{50}[/tex]
Step-by-step explanation:
=> 78% makes:
=> [tex]\frac{78}{100}[/tex]
In simplest form:
=>[tex]\frac{39}{50}[/tex]
Answer:
[tex]\frac{39}{50}[/tex]
Step-by-step explanation:
78% is .78 as a decimal and it is [tex]\frac{78}{100}[/tex].
[tex]\frac{78}{100}[/tex] can be simplified to [tex]\frac{39}{50}[/tex]
1 point
1. Mr. Smith visited the park one sunny afternoon. He noticed that only
dogs and people were in the park that day. While he was resting on a park
bench, he observed that there were 15 heads and 50 legs in the park.
Which pair of system of equations can be used to determine the number
of dogs and the number of people in the park that day (use x = # of people;
y = # of dogs)?
x + y = 50: 2x + 4y = 15
x + y = 15, 4x + 2y = 50
X + y = 15:2x + 4y = 50
x + y = 50; 4x + 2y = 15
Answers
Answer:
x+y=15 ; 2x+4y=50
Step-by-step explanation:
Let x be the number of people
Let y be the number of dogs.
Equation regarding Total Heads:Total number of heads = 15
As
1 person has 1 head
1 dog has 1 head
Total no. of heads of people = 1 * x = x
Total number of heads of dogs = 1*y = y
Equation becomes:
x+y=15
Equation regarding Total Legs:Total number of legs = 50
As
1 person has 2 legs
1 dog has 4 legs
Total no. of legs of people = 2 * x = 2x
Total number of legs of dogs = 4*y = 4y
Equation becomes:
2x+4y=50
Find the next term in the
sequence.
Simplify completely.
3
3,3
3, 3, [?]
Answers
Find the coordinates of the midpoint of the segment whose endpoints are given.
A (2, 3) and B (6, 11)
(4, 7)
(11, 4.5)
(2, 4)
Answers
Answer:
a
Step-by-step explanation:
The probability that a person has immunity to a particular disease is 0.6. Find the mean number who have
immunity in samples of size 12.
Answers
Answer:
Step-by-step explanation:
This is a binomial probability problem. There are only two outcomes. It is either a chosen person has immunity to a particular disease or he does not. The probability of success in this case, p is the probability that a chosen person has immunity to a particular disease. Thus
p = 0.6
The probability of failure, q is q = 1 - p
Thus, q = 1 - 0.6 = 0.4
Mean = np
Where n represents sample size. Thus,
Mean = 12 × 0.6 = 7.2
/ / * ANSWER PLS * / / MK and ML are tangent to circle J. If MK = 6x – 15 and ML = 2x + 9, find x.
Answers
Answer:
x=6
Step-by-step explanation:
As MK and ML are tangent to the circle, they are also congruent (MK = ML). Thus we can set the equation:
6x-15 = 2x+9
Now solve for x:
6x-2x = 9+15
4x=24
x=6
Answer:
B.
Step-by-step explanation:
MK and ML are tangents to a circle and " originating from the same point" so
MK=ML
Since MK = 6x-15 and ML = 2x+9
So,
6x-15 = 2x+9
6x-2x = 9+15
4x = 24
Dividing both sides by 4
So, we'll get
x = 6
All rhombus we have all sides that are equal in length.
Which of these quadrilaterals are rhombuses?
Answers
The quadrilaterals that are rhombus is
Figures B and C.
Options B and C are the correct answer.
What is a rhombus?A rhombus is a quadrilateral whose all four sides are equal and the parallel sides are equal and the opposite angles are equal
We have,
A rhombus has all four sides equal.
A rhombus has equal parallel sides.
A rhombus's opposite angles are equal.
Now,
The figure in option B has the following properties:
All sides are equal.
Parallel sides are equal.
The figure in option C has the following properties:
All sides are equal.
Parallel sides are equal.
Opposite angles are equal.
Thus,
Figures B and C are rhombus.
Learn more about rhombus here:
https://brainly.com/question/27870968
#SPJ2
Denice had 236 yellow stars and 196 blue stars. She wants to arrange them in rows of 4. How many rows of stars would Denice have?
Answers
Answer:
108
Step-by-step explanation:
236 + 196 = 432 (total stars)
432 / 4 = 108 rows.
Answer:
108 rows.
Step-by-step explanation:
236 stars + 196 stars = 432 stars in total
So if you're putting 432 stars in 4 rows, you have to divide 432/4, which equals 108 rows with 4 stars in each row.
Hope this helped you :)
When solving the equation 3x + 9 = 17x - 11, the first step is to?
Answers
The first step would be to combine like terms.
Hope this helps !
Step-by-step explanation:
The first step is to move the like terms to same side of equation
3x + 9 = 17x - 11 ➡ 9 + 11 = 17x - 3x
then we add like terms
20 = 14x simplify if needed
10 = 7x and x = 10/7
which of the following values are in the range of the function graph below? Check all that apply.
Answers
Answer:
hey there,
Step-by-step explanation:
make sure you add your image. we don't know what to answer
Answer:
Add a graph so that we are able to answer for you.
Step-by-step explanation:
Jackson said that he made a triangle that had side lengths of 6 units, 6 units and 14 units. Is this a possible triangle? Yes or no.
Answers
[tex]\text{The triangle will not be possible}\\\\\text{This is because the two side lengths can't expand to 14 units}\\\\\text{In order for the triangle to work, the sum of the two short side lengths}\\\text{must be greater than the longer side}\\\\\text{However, 6+6 does not equal 14, it equals 12.}\\\\\text{This means that the triangle is NOT possible}[/tex]
What is the product of 523 and 48
Answers
Answer:
25104
Step-by-step explanation:
PRODUCT=MULTIPLICATION, SO
423 X 48= 25104
Lines a and b are parallel lines cut by transversal f.
Parallel lines a and b are cut by transversal f. At the intersection of lines f and b, the uppercase left angle is angle 4. At the intersection of lines f and a, the uppercase right angle is angle 1.
If , what is ?
20°
70°
110°
130°
Answers
Answer:
110
Step-by-step explanation:
110°
Plz help as soon as possible
what is 150*70
Answers
Answer:
10500
Step-by-step explanation:
I need help on this.
Answers
Answer:
186
Step-by-step explanation:
6 x {[(14 - 9 ) x 3 ] + [( 17-9) x 2]}
is 106
PLS HELP EASY QUESTIONS
1.
Jenny has some tiles in a bag. The tiles are of three different colors: purple, pink, and orange. Jenny randomly pulls a tile out of the bag, records the color, and replaces the tile in the bag. She does this 50 times. The results are recorded in the given table:
Color of Tile Purple Pink Orange
Number of times the tile is drawn 4 24 22
What is the experimental probability that Jenny will pull out a pink tile?
22 over 50
22 over 28
24 over 50
4 over 50
2.
Jake has a bag of 50 beads, of which some are red and the remaining are yellow. Jake randomly pulls out a bead from the bag, records the color, and replaces it in the bag. Jake has already recorded 6 red and 9 yellow beads. Based on the result, what is most likely the number of red beads in the bag?
10
20
30
40
Answers
Answer:
24 over 50 and 20 red beads
Step-by-step explanation:
Charlie and Leo were playing with toy cars. Charlie said to Leo that if you give me one car, then i will have twice as many cars as you have. Leo said if charlie gives him a car, they will be equal. How many cars does each boy have?
Answers
Answer:
Charlie has 6 and Leo has 4
Step-by-step explanation:
6-1=5 and 4+1= 5
brainliest plsss
Answer:
In the beginning, Leo had 3 cars and Charlie had 3 cars.
In this problem, the statements seem to never be true if applied in the initial value. But if we take the value from the first statement and take it in the second, Leo and Charlie having 3 cars is true.
Step-by-step explanation:
Charlie said to Leo that if you give me one car, then i will have twice as many cars as you have.
[tex](L_{1} - 1) = 2L_{2} = C_{2}[/tex]
From that statement after Leo gives Charlie a car, we'll have something like:
Charlie's Leo's
2 1
4 2
6 3
Also, from that statement we can imply that we're not dealing with a great amount of cars, because the next statement won't be true.
Leo said if Charlie gives him a car, they will be equal.
[tex]L_{1}= C_{1} - 1[/tex]
Another thing is that if the second consideration holds true after the first statement. I will considerate that.
So,
In the beginning, Leo had 3 cars and Charlie had 3 cars.
In this problem, the statements seem to never be true if applied in the initial value.
ASAP.right now will be nice
Answers
Answer:
Its where the figures don't touch
Step-by-step explanation:
If p(x) is a quadratic function and p(-1) = p(7) = 2,
which of the following could be the coordinates of
the vertex of the parabola formed when y = p(x) is
graphed in the xy-plane?
PLEASE EXPLAIN- I really don’t know:,)
(0,8)
(4,3)
(6,7)
(3,9)
Answers
Answer:
3,9
Step-by-step explanation:
hint: quadratic function
the form can be x² or x²+b or x²+bx+c
when p(-1)= 2 it means if we take x-axis = -1 the result (y-axis) will be 2. Same thing happen if we take x = 7
the vertex will always in the middle. So the middle of x = -1 and x = 7 is 3
-1, 0, 1, 2, 3, 4, 5, 6, 7
the vertex will occured when x = 3
the only answer with x = 3 is the fourth one (3,9)
An angle turns through
30
360
of a circle.
What is the measure of the angle?
A
12°
30°
С
330°
D
360°
need help please
Answers
Answer:
Not widely used. If you continue to increase an angle it will eventually 'double back' on itself and form a full 360° angle. This is the Full Angle. One could argue that this is the same as a zero-sized angle. But we generally mean the reflex angle and so it is a full circle or 360°. Adjust the angle above and try to create the full angle going around in both directions.
Step-by-step explanation:
Two bottles of water and three small bags of fruit cost a total of £2.55. If a bottle of water costs 15p more than a bag of fruit, what is the cost of a bag of fruit?
Answers
Answer:
45p
Step-by-step explanation:
2w+3f=2.55
w=f+15p
2w=2f+30p
2f+3f+30p=2.55L
5f+30p=255p
5f=255-30
5f=225p
f=225/5=45p
Eight businesses were asked how many employees they have. Here is the data: 4, 5, 6, 5, 4, 6, 3, 8. Find the mean / A ocho empresas se les preguntó cuántos empleados tienen. Aquí están los datos: 4, 5, 6, 5, 4, 6, 3, 8. Encuentre la media * A.5 B.5.125 C.4 D.6
Answers
Answer:
B. 5.125
Step-by-step explanation:
When you add the numbers, you get 41. Then, you divide by how many numbers there are and you would get 5.125.
Answer:
B. 5.125
When you begin to add the numbers your total will be 41 but you would need to divide by the total amount of numbers in the data and your answer would be 5.125
When you add the numbers, you get 41. Then, you divide by how many numbers there are and you would get 5.125.
Step-by-step explanation:
Barrett purchased a piece of sandpaper for his electric sander, as shown above. The radius of the sandpaper is 2.5 inches. Approximately what area does the sandpaper cover ignoring the center hole? (Use 3.14 for .)
Answers
Answer:
Look at the attachment
How are nongovernmental producers different from the federal government?
A. They can refuse to pay taxes.
B. Their goal is to make a profit.
C. They can regulate international trade.
D. Their existence is dependent upon competition.
Answers
Answer:
the differences between a non-profit organization and NGOs are: 1.The NGO is a non-governmental organization. Its funds are raised by the government, but it maintains a non-governmental position, with no need for a government council.
Step-by-step explanation:
what is the tangent ratio of E L?
A. 3/4
B. 5/3
C. 5/4
D. 4/3
Answers
Answer:
A. 3/4
Step-by-step explanation:
[tex] \tan \angle E = \frac{6}{8} = \frac{3}{4} \\ [/tex]
18. A brother carries his little sister, who weighs 24kg, across a field 20 meters. How
much work did he do?
Answers
Answer:
4800 joules
4.8 kilojoules
Step-by-step explanation:
[tex]Work done = Force * distance\\Workdone = (mass*acceleration)*distance\\Note : force = (mass*acceleration) , Acceleration- due- to -gravity =10m/s^2\\W.D = 24 * 10*20\\W.D = 4800 joules\\W.D =4.8Kilo joules[/tex]
Laura received a $90 gift card for a coffee store. She used it in buying some coffee that cost $8.63 per pound. After buying the coffee, she had $55.48 left on
her card. How many pounds of coffee did she buy?
Answers
Answer:
4 pounds
Step-by-step explanation:
WILL MARK BRAINLIEST! 30 PTS-----An equilateral triangle has what type of symmetry?
A.
line symmetry only
B.
point symmetry only
C.
both point and line symmetry
D.
neither point nor line symmetry
E.
both point and rotational symmetry
Answers
Answer:
A. line symmetry only.
equilateral triangles have 3 lines of symmetry
Prove that
[tex]x {}^{2} - 2[/tex]
will never be divisible by 3.
Answers
Answer:
Any integer x can be represent in form of 3k, 3k+1, or 3k + 2 (k is integer).
Case 1: x = 3k => x^2 - 2 = 9k^2 - 2, which will not be divisible by 3
(notice that 2 is not divisibble by 3, but 9k^2)
Case 2: x = 3k + 1 => x^2 - 2 = 9k^2 + 6k + 1 - 2 = 9k^2 + 6k - 1, which will not be divisible by 3
(notice that 1 is not divisibble by 3, but 9k^2 + 6k)
Case 3: x = 3k + 2 => x^2 - 2 = 9k^2 + 12k + 4 - 2 = 9k^2 + 12k - 2, which will not be divisible by 3
(notice that 2 is not divisibble by 3, but 9k^2 + 12k)
=> x^2 - 2 will never be divisible by 3
Hope this helps!
:)
