Answer:
4x^2 - 2x + 1
Step-by-step explanation:
Since you are adding, you can drop the parentheses because they are unnecessary. Combine like terms.
(3x^2 - 2x + 1) + (1x^2) =
= 3x^2 - 2x + 1 + 1x^2
= 4x^2 - 2x + 1
Can someone please help me with this question? I don’t know what the answer is and I’m not sure
Answer:
you're right
Step-by-step explanation:
I checked by writing the first 5 terms
a1: 5
a2: 8
a3: 11
a4: 14
a5: 17
and then checked using the function to see if they matched up and they did
Nolan gave out a survey to some students in his school about their favorite color. Students could choose between red and purple. 238 of those surveyed said their favorite color was red. 66% of the students surveyed said their favorite color was purple. How many students were surveyed in total?
Answer:
700
Step-by-step explanation:
100%-66%=34%
34% equals the 238 that is red
238÷34%=7 people per percentage
7×66%= 462 students that chose purple
462+238=700 which should be the total amount of people surveyed.
The area of a square is 49 square feet. What is the
perimeter of the square?
A 7 ft
B 28 ft
© 12.25 ft
D 24.5 ft
If a player had the following cards what is the value of his hand?
5(2x+3)+2(4x –1)
I need help
PLEASE HELP I DONT UNDERSTAND WILL GIVE LIKE 20 POINTS
Answer:
Step-by-step explanation:
11/4 <3
Answer:
11/4
Step-by-step explanation:
Hope this helps!
Error Analysis: Find, describe & correct the error that a student has made while solving the equation: LaTeX: 4=-2\left(x-3\right)4 = − 2 ( x − 3 ) Step Number Equation 1 LaTeX: 4=-2\left(x-3\right)4 = − 2 ( x − 3 ) 2 LaTeX: 4=-2x-64 = − 2 x − 6 3 LaTeX: 4+6\:=\:-2x\:-\:6\:+\:64 + 6 = − 2 x − 6 + 6 4 LaTeX: 10\:=\:-2x10 = − 2 x 5 LaTeX: \frac{10}{-2}=-\frac{2x}{-2}10 − 2 = − 2 x − 2 6 LaTeX: -5=x
Given:
[tex]4=-2\left(x-3\right)[/tex]
To find:
The error that a student has made while solving the equation.
Solution:
We have,
[tex]4=-2\left(x-3\right)[/tex]
Using distributive property, we get
[tex]4=-2(x)-2(-3)[/tex]
[tex]4=-2x+6[/tex]
Subtract 6 from both sides.
[tex]4-6=-2x+6-6[/tex]
[tex]-2=-2x[/tex]
Divide both sides by -2.
[tex]1=x[/tex]
The value of x is 1.
In step 2, the distributive property is not used properly because when -2 is distributive with -3 then we get 6 instead of -6.
Therefore, the student has made error in step 2.
what property is 4x + 8 = 28
Answer:
x=5
Step-by-step explanation:
4x + 8 = 28,
it's rather straight forward,
you would subtract 8 from the left side,
doing the same on the right.
now you have
4x = 20
x= 20/4
x=5
hope this helps.
I NEED HELP WITH THIS ASAP!!! FOR BRAINLIEST LASTQ
Answer:
A.
Step-by-step explanation:
It's literally the same equation written in reverse, which according to the commutative property, can be done.
Answer: A
Step-by-step explanation:
For this problem, we know that A is the correct answer. A is the same as the given expression because it is the same, but the order is switched. When you multiply both of them, you would get the same answer.
We can eliminate B because [tex]\frac{2}{5}[/tex] should be positive, not negative.
We can eliminate C because the fraction should be [tex]\frac{2}{5}[/tex], not [tex]\frac{5}{2}[/tex].
We can eliminate D because (-1×-7) given you 7, not -7.
Therefore, A is the right answer.
I’ve tried but I don’t know what it is please help
Answer: x=11
Step-by-step explanation:
I got this by 126-49=77. Then I divided 77 by 7 and got 11.
Explain how do you know whether the relationship between two quantities is a proportional relationship. *
When x+2 = 1/5y is written in standard form, what is the value or B
Answer:
B=-1
Step-by-step explanation:
Standard form is Ax+By=C.
In this case, Ax is x, By is 1/5y, and C is +2.
To isolate the 2 (the C), subtract x from both sides of the equation:
x+2=1/5y
-x -x
2=-x+1/5y.
Now, the value of B, the x value, is -1.
the value of 1 by 3- 1 by 2=
Answer:
the value of 1 by 3- 1 by 2 is 1
Step-by-step explanation:
it is one because 1 by 3 is 1*3
that equals to 3
then you do 1 by 2 (aka 1*2)
then it is 3-2 which equals to 1
Credit card A is running a promotion where they will charge 0% interest for the first year, and then 0.8% compounded continuously after that. Credit card B has an interest rate of 0.7%, also compounded continuously. If you are going to make a $500 purchase and plan to not make a single payment for 2.5 years, which credit card should you go with? Write the equation showing the total balance at the end of 2.5 years for that card. How much money invested at 5% compounded continuously for 3 years will yield $820
Answer: 0.1
Step-by-step explanation:
your going to substact credit card a and b and then what ever you get will be your answer
Factor the following trinomial completely, or state that the trinomial is prime.
3x^2+10xy + 8y^2
Answer:
(3x + 4y)(x + 2y)
Step-by-step explanation:
3x^2+ 10xy + 8y^2
All signs are positive, so we'll only look at positive factors of 3 and 8.
3 factors into 3 and 1.
8 factors into 4 and 2, and it also factors into 8 and 1.
I like to try closer factors in value, so I'll start with 4 and 2 for 8.
Try:
(3x + 2y)(x + 4y) = 3x^2 + 12xy + 2xy + 8y^2 = 3x^2 + 14xy + 8y^2
The middle term does not work. Switch 2y and 4y and try again.
Try:
(3x + 4y)(x + 2y) = 3x^2 + 6xy + 4xy + 8y^2 = 3x^2 + 10xy + 8y^2
It works.
Answer: (3x + 4y)(x + 2y)
What is the Measure of angle ABE?
Select all that apply.
Which of the following name an angle in the drawing?
Answer:
ECB and CDE
Step-by-step explanation:
the others arent the same
A number is in expanded form: (9 x 10) + (6 x 1) + (2 x 1/100) + (3 x 1000) What is the number is standard form?
Answer:
96.023 is the answer yeah
d) What is the y-intercept of the roof? Describe where the peak of the roof is on
the x-y plane
HELP PLS. What information do you need to graph a linear function?
HELP PLS UHM 15 POINTS AND Brainliest
Answer:
(0,2)
Step-by-step explanation:
The intercept is the part of the line touching the quadrat.
Answer:
B (0,2)
Step-by-step explanation:
Because if its on the red line on the y axis its 2.
The point Q (5,3) is translated 2 units left. What are the coordinates of the resulting point Q
Answer:
(3,3)
Step-by-step explanation:
Since it's to the left, and not up or down at all, the y-value does not change. The x-value, however, is affected. Since it's to the left, it is decreasing in value by 2 points. If it were to the right, it would increase in value to (7,3), since it'd be going further away from (0,0).
Answer:
Q = (3,3)
Step-by-step explanation:
Moving the point left moves the x value down 2.
5-2=3
Therefore, Q = (3,3)
The original rectangle is 9 feet long and 3 feet wide. The
new rectangle is 1 foot wide. What was the scale factor to
go from the original rectangle to the new rectangle?
Find the answer for x.
Answer:
x=25
Step-by-step explanation:
since this is a triangle you would add up all the measure of this and set it equal to 180. 90 is the side with the box. so it would be 2x+15+x+90=180 then solve for x and you would get your answer.
Please help me find the equivalent fractions!
Answer:
7/9 = 14/18
4/10 = 16/40
3/12 = 9/36
8/10 = 4/5
12/16 = 6/8
18/21 = 6/7
Step-by-step explanation:
Answer:
7/9 is equivalent to 14/18
4/10 is equivalent to 16/40
3/12 is equivalent to 2/8
8/10 is equivalent to 4/5
12/16 is equivalent to 6/8
18/21 is equivalent to 6/8
Using Oliver’s table, how can you find the unit rate?
Answer:
Is there a table I can see if I'll be able to help
Answer:
Oliver’s table indicates that for every increase of 2 strides, the distance he travels increases by 7 feet. So, the change in distance divided by the change in stride gives the unit rate.
Step-by-step explanation:
This Is The Sample AnswerSolve for x: −2(x + 3) = −2x − 6 NEED HELP PLZ:(
A: 0
B: 3 C:All real numbers
D:No solution
Answer:
The answer is C:All real solutions
Step-by-step explanation:
here are the steps in case u need them :)
Step 1: Simplify both sides of the equation.
−2(x+3)=−2x−6
(−2)(x)+(−2)(3)=−2x+−6(Distribute)
−2x+−6=−2x+−6
−2x−6=−2x−6
Step 2: Add 2x to both sides.
−2x−6+2x=−2x−6+2x
−6=−6
Step 3: Add 6 to both sides.
−6+6=−6+6
0=0
Answer:
C: All real numbers.
Step-by-step explanation:
-2 ( x + 3 ) = -2x -6
-2 times x, -2 times 3
-2x -6 = -2x -6
Add 6
-2x -6 +6 = -2x -6 +6
-2x = -2x
same as....
0 = 0
The height of a stack of boxes varies directly with the number of boxes. A stack of 12 boxes is 15 feet high. How tall is a stack of 16 boxes.
Answer:
20 boxes
Step-by-step explanation:
12 boxes is 15 feet so 4 boxes is 5 feet
gia puts 24 stickers into 4 equal groups how many stickers are there in each group Enter the correct answer in the box
Answer:
6
Step-by-step explanation:
just do 24 divided by 4 and you get 6 and to check it do 6*4 and its 24
1:Write 2 whole numbers that are less than 941,020
Answer:
900,000500,000Step-by-step explanation:
There are lots of numbers that are less than 941,020
( Exactly 941,019 without Negative Numbers )
( If Negative Numbers are involved, it's infinity )
Hope this helps! <3
Answer:
5 and 9303 (Those are just examples)
Step-by-step explanation:
You can choose any number that is below 941,020, and hs no decimal places, so 0, 6, 930, and 90493 all work.