Write the equivalent expression to the sum of the expressions 3a2 + 3a and -3a - 3a2
Answers
Answer:
[tex]3 {a}^{2} + 3a + (- 3 {a}^{2} - 3a) \\ = 3 {a}^{2} - 3 {a}^{2} + 3a - 3a \\ = 0 \\ thank \: you[/tex]
Related Questions
WHAT is the scale factor of the dilation?
PLEASE HELPPp c:
Answers
Answer:
2.5
Step-by-step explanation:
We can see that the original length of RS is 2 units. The length of R'S' is 5 units.
2 * x = 5
2x = 5
x = 5/2
x = 2.5
PLZ HELP!!!! STUCK!!!!!
There are 15 tiles in a bag. Of these, 7 are purple, 5 are black and the rest are white.
Event A = drawing a white tile on the first draw
Event B = drawing a purple tile on the second draw
If two tiles are drawn from the bag one after the other and not replaced, what is P(B|A) expressed in simplest form?
A. 1/5
B. 1/3
C. 7/15
D. 1/2
Answers
Answer: C.
Step-by-step explanation: If I am wong I am sorry !
Probability of drawing two tiles from the bag one after the other and not replaced that is P(B/A) is equals to [tex]\frac{1}{2}[/tex].
What is probability?" Probability is defined as the ratio of number of favourable outcomes to the total number of outcomes."
Formula used
Conditional probability ' P(B/A)' = P(A∩B) / P(A)
According to the question,
Total number of tiles = 15
Number of while tiles represented by 'A' = 3
Number of purple tiles represented by 'B' = 7
Number of black tiles= 5
Total number of outcomes = 15 × 14
= 210
Favourable outcome for A = 3 × 14
= 42
Favourable outcomes for A∩B = 3 × 7
= 21
Probability of A
'P(A)' = [tex]\frac{42}{210}[/tex]
Probability of A∩B
'P(A∩B)' = [tex]\frac{21}{210}[/tex]
Substitute the value in the conditional probability we get,
Probability for P(B/A) = [tex]\frac{\frac{21}{210}}{\frac{42}{210} }[/tex]
= [tex]\frac{1}{2}[/tex]
Hence, Option(D) is the correct answer.
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what’s the range?
a: time
b:rainfall
c:not given
Answers
Step-by-step explanation:
option B is correct range is rainfall.
hope this answer helps you dear!
certain store's sales increased by 167% compared to the previous year. How many squares would be shaded on 10 x 10 grids to represent 167%?167 squares
67 squares
100 squares
33 Squares
Answers
Answer:
alam nio ba filipino talaga ako hahahah
If n(A) = 16. n( B) = 19 and n(AB) = 30. Find n(AB)
Answers
Answer:
309
Step-by-step explanation:
We have ,
n(A) = 16 n(B) = 19We know that the number of elements in Cartesian product of two sets is ,
n(AB) = n(A) * n(B) n(AB) = 16 * 19 n(AB) = 309write an absolute value inequality for the graph below. Use x for your variable.
Answers
Answer:
-4<x<4
Step-by-step explanation:
can you guys do 1 and 3 for me
Answers
Answer:
1) DE = 18
3) [tex]x=18[/tex]
Solve for x:
[tex]x=18[/tex]
Step-by-step explanation:
1) [tex]19-1=18[/tex]
3) [tex]2x-32+2x-23=4x-55;4x-55=17;x=18[/tex]
Tip:
DE + EF = DF = 19
IJ + JK = IK = 17
What is the rate of change given the table?
х
у
-2
6
st
1
16
-9
O-6/5
0-5/6
O 5/6
O 6/5
Answers
Answer:
-3/6 is the slope which is -1/2
(6,0) is the X intercept
(0,3) is the Y intercept
Step-by-step explanation:
read the graph
HELPPPPPPPPPPPPPPPPPp
Answers
Explanation:
The mean is the average of a data set; it is the number that falls directly in the middle of the data set.
The formula to find the average is: a=sum of terms/ number of terms.
Therefore, we just add up all the values in the data set and divide by how many numbers there are.
3+9+10+10+4+10+10+10/8 = 8.25. We added up all the numbers and then divided by how many numbers there were, which was 8.
8.25 rounded to the nearest tenth is 8.3.
Your answer is 8.3
Please give Brainliest!!!
Simplify (2x+5)(2x−5).
A) ( 4x − 25 )
B) ( 4x^2 − 10 )
C) ( 4x^2 − 25 )
D) ( 4x^2 − 20x − 25 )
Answers
Answer:
Solve For X
A) X = 6.25
B) X =
Answer:
C See below
Step-by-step explanation:
Use FOIL to find answer
First, Outer, Inner, Last
First 2x times 2x = 4x²
Outer 2x times 5 = - 10x
Inner 5 times 2x = 10x
Last 5 times 5 = - 25
so equation ends up 4x² - 10x + 10x - 25
or 4x² - 25
Can you please help me with my homework I don’t get it.
Answers
m= slope
b = y-intercept (The y-intercept is the y-coordinate of the point where the graph of the linear equation crosses the y-axis. The y-intercept is also the value of y when x = 0.)
To start with, you’ll need two ordered pairs (x,y) from the line to solve for slope.
For the first graph:
Let (x1,y1) = (0,2)
(x2,y2) = (2,4)
Substitute these values into the slope formula:
m = (y2 - y1)/(x2 - x1)
m = (4 - 2)/(2 - 0)
m = 2/2 = 1
Therefore, the slope (m) = 1.
Next, for the y-intercept, the point where it crosses the y-axis is at point (0, 2). Therefore, the y-intercept (b) = 2.
Thus, the linear equation of the first graph in slope-intercept form is: y = x + 2.
For the 2nd graph, do the same steps as we have done in the 1st graph:
Choose 2 ordered pairs:
Let (x1,y1) = (0,2) — right off the bat, this is the y-intercept.
(x2,y2) = (2,0)
Substitute these values into the slope formula:
m = (y2 - y1)/(x2 - x1)
m = (0 - 2)/(2 - 0)
m = -2/2 = -1
Therefore, the slope (m) = 1.
For the y-intercept, I noted earlier that (0,2) is the y-intercept. Hence, b = 2.
The linear equation in slope-intercept form of the 2nd graph is: y = -x + 2
Please mark my answers as the Brainliest if you find my explanations helpful :)
An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $3750 and his stock in Company B was worth $1860. The stock in Company A has decreased 24% since last year and the stock in Company B has decreased 20%. What was the total percentage decrease in the investor's stock account? Round your answer to the nearest tenth (if necessary).
Plssssssss help ill give brainliesttttt
Answers
Answer: Heyy Bestie Your answer would be 22.7%
Love ya and stay sliving ❤️
Step-by-step explanation:
!30 points! Which angle corresponds to angle N? (Photo attached)
A. N
B. O
C. O'
D. P'
Answers
Answer:
The answer is D. "P". hope this helps you
Answer:
I believe the answer is A
Step-by-step explanation:
Prove segment BD = segment CA
Answers
Answer:
it is equal because in a rectangle there is a property: opposite sides are equal so BD=CA
Step-by-step explanation: PLS MARK BRAINLIEST
Answer:
BD = CA (Corresponding Element)
Step-by-step explanation:
BAC & BDC Triangle
BAC = BDC (right angle)
BA = DC (Opposite sides are Equal)
BC (equal to both)
BAC congruent BDC under the case of (Angle Side Side)
therefore BD = CA (corresponding angle)
¿el número 5 es racional o irracional y por qué ?
Answers
Answer:
for what I think Es Irracional
A company makes a profit of $50 per software program and $35 per video game. The company can produce at most 200 software programs and at most 300 video games per week. Total production cannot exceed 425 items per week. How many items of each kind should be produced per week in order to maximize the profit? Use linear programming to solve. Show all your work.
Answers
Answer:
200 Software programs = $10,000 profit
225 video games = $7,875 profit
65 + = 180 complete the steps to find the value of x
Answers
x = 115
Step-by-step explanation:
180 - 65
115
115+65 = 180
x = 115
There are 130 people in a sport centre.
61 people use the gym.
68 people use the swimming pool.
60 people use the track.
25 people use the gym and the pool.
30 people use the pool and the track.
19 people use the gym and the track.
6 people use all three facilities.
A person is selected at random.
What is the probability that this person doesn't use any facility?
Answers
The probability that this person does not make use of the facility is 7/130
How to solve for the probability61+68+60 - 25-28-19 + 6
= 123
The total number of person in the sport center is given as 130
We have 130 - 123 = 7
This means that there are a total of 7 persons that do not make use of this facility.
Hence the probability of a person not using the facility is 7/130
Read more on probability here:
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Divide 18 in two parts so that sum of their reciprocals is 2/5
Answers
Answer:
3.6
Step-by-step explanation:
I think that is the answer but im not 100 percent sure
Question 1
(a) Using Geometry Vocabulary, describe a sequence of transformations that maps figure X onto figure Y.
(b) Write the Transformation Mapping Rule(s) for the sequence you described in part (a).
- No text entered -
Question 2
Jonny is writing a program for a video game. For one part of the game he uses the rule given below to move objects on the screen.
Showing all your work, give the output that the rule gives for the inputs.
(x, y)→(x−7.5, y+6.8)
First input: (5.3, 2.7)
Second input: (9.4, -3.9)
Question 3
Triangle ABC has its vertices at the following coordinates:
A(-5, 2) B(-3, 1) C(-1, 5)
Give the coordinates of the image triangle A'B'C' after a 90° counterclockwise rotation about the origin.
Answers
Answer: Question 1 = reflection over y axis, transformation 1 unit to the left
Step-by-step explanation:
the formulas for area of a triangle require the length of any two sides of the triangle amd the measure of the included angle.True or false
Answers
Answer:
True
the answer to the above question is true
On Halloween night, Mack collects x pieces of candy and then eats 7 pieces. The next day he eats 10% of his candy pieces and has 63 pieces remaining. How many pieces of candy did he collect on Halloween night?
Answers
Answer:80 or 1,071
Step-by-step explanation:
first you add 7+10=17 then you do 17x63=1,071
if its not times then the answer would b 80
What is the slope of the line on the graph
Answers
Answer:
M=12/2 let me know if I'm right or wrong
does anyone know how to do this asap! with a full explanation please !!! thank you have a great day !!
Answers
Answer: i think 30 minutes
need help asap for exam prep
Answers
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As we know, the sum of measures of interior angles of a triangle sum up to 180°
so, according to above question ~
[tex]x + 20 + x + 10 + x = 180[/tex][tex]3x + 30 = 180[/tex][tex] 3x = 180 - 30[/tex][tex]3x = 150[/tex][tex]x = 150 \div 3[/tex][tex]x = 50[/tex]Step-by-step explanation:
Here is your solution.!
Plz mark me brainest
and follow me to get the answer faster.
help me please and thank u
Answers
Answer:
4
Step-by-step explanation:
A triangle is shown
What is x?
What is y?
What is z?
Answers
Answer:
x = 44
y = 136
z = 136
Step-by-step explanation:
The angles of a triangle have to add up to 180°
54 + 82 + x = 180
136 + x = 180
x = 44
We know that y and z are vertical angles, so they have the same measurements.
Also, x and the other angle across from it are also vertical angles.
88 + 2n = 360
2n = 272
n = 136
Therefore,
x = 44
y = 136
z = 136
The big room measured 19 ft 10 in. by 22 ft 1 in. About how many square feet of carpet are needed to re-carpet the big room?
Answers
Answer:418 5/6
Step-by-step explanation:
First get everything into inches and multiply than divide to get it into feet and the remainder is the inches but you can have a fraction
Plz help fast
I will mark Brainlyist
Answers
Answer:
its side angle side
Step-by-step explanation:
the sides are equal and the angle in between is the same
Which of the following are equivalent to –(–5 – 7)? CHOOSE TWO. –5 + 7
5 + 7
5 – 7
–5 – 7
5 – (–7)
–5 – (–7)
Answers
Answer:
The only one I found equivalent to (–5 – 7) is (-5-7) sorry