Answer:
C. (3x)^2 - (2)^2
Step-by-step explanation:
Each of the two terms is a perfect square, so the factorization is that of the difference of squares. Rewriting the expression to ...
(3x)^2 - (2)^2
highlights the squares being differenced.
__
We know the factoring of the difference of squares is ...
a^2 -b^2 = (a -b)(a +b)
so the above-suggested rewrite is useful for identifying 'a' and 'b'.
What is the solution to this equation? 4x+5=2x−3 Enter your answer in the box. x =
4x + 5=2x-3
4x-2x=-5-3
2x=-8
X=-8/2
X=-4
Answer:
-4
Step-by-step explanation:
took the test
please answer this asap i’m so confused on graphing
HELP. LOOK AT THE PICTURE
Answer:
B
Step-by-step explanation:
Since the person used >200 kWh that month, you would use the bottom equation: 0.15(x-200)+20.
(BTW, the x>200 or x≤200 means if they used more or less than/equal to 200 hours)
From there, you can plug in the number of hours for x, which is 400. So, 0.15([400]-200)+20
0.15(200)+20
30+20
50
The bill for a person that uses 400 KWh is $50.
Option B is the correct answer.
We have,
The number of kilowatts is more than 200.
So,
From the piecewise function choose the function for x > 200.
i.e
b(x) = 0.15 (x - 200) + 20
This is used to calculate the bill.
Now,
Substitute x = 400 KWh in b(x).
b(x) = 0.15 (x - 200) + 20
Simplify the expression.
= 0.15 (400 - 200) + 20
= 0.15 x 200 + 20
= 30 + 20
Add the values.
= 50
Thus,
The bill for a person that uses 400 KWh is $50.
Learn more about functions here:
https://brainly.com/question/28533782
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Complete the table. Write in the correct units that correspond with the letters in the table. A: B: C:
Answer:
A: Gallon
B: Kilogram / Kilogramme
C: Meter / Metre
Step-by-step explanation:
I know these already
Answer:
A: Quart
B: Gram
C: Meter
Step-by-step explanation:
I had this question on a test and I got it right with theese answers above.
Help pleaseeeeeeeeeeeeee
Answer:
the first one is D
Step-by-step explanation:
I hope this helps
Find the value of (x + 1) in this equation.
1/3 (6x − 5) − x = 1/3 − 2(x + 1)
Answer:
22
Step-by-step explanation:
You have to do order of op
x^2+16=10x factor it NEED IT ASAP
four times the sum of a number and ten is 60. find the number.
Answer choices:
A. 4
B. 5
C. 6
D. 7
Answer:
B. 5Step-by-step explanation:
x - the number
x + 10 - the sum of the number and ten
4×(x + 10) - four times the sum of the number and ten
4×(x + 10) = 60
÷4 ÷4
x + 10 = 15
-10 -10
x = 5
A bakery sells 3 muffins for every 5 pizza pies.The bakery sold a total of 24 muffins and pizzas pies together.how many of each kind did the bakery sell?
Number of muffins sold=9
and number of pizza pies sold=15
3) Which choice is a
multiple of 9?
A. 150
B. 138
C. 180
D. 114
Answer:
C. 180
Step-by-step explanation:
180/9 = 20
Answer:
Step-by-step explanation:
180 is a choice of multiple 9
180/9 = 20
answer is b
IS 0.32 x 102 WRITTEN IN SCIENTIFIC NOTATION? JUSTIFY YOUR ANSWER.
Find the midpoint of points A(-6,9) and B(2,3) graphically.
what is a repeating decimal
Answer:
A decimal fraction in which a figure or group of figures is repeated indefinitely, as in 0.666
Step-by-step explanation:
Answer:
A repeating decimal is a decimal fraction in which a figure or group of figures is repeated indefinitely, such as 0.888 or such as 1.734734734
A store sells bouquets of fruits for $10 a bouquet. The daily cost to produce x bouquets of fruits is defined by the function f(x) = – x 4 + 3x 3 + 5x 2 + 20x + 1.
Answer:
5 or C
Step-by-step explanation:
when you plug in 5, you get -24 as the cost. Then you take that number with the amount of money you make selling 5 flowers and that would be $50 since they are $10/per bouquet. Then when you subtract you get a positive profit of $26.
Answer:
5
Step-by-step explanation:
For profit to be had, the selling price (represented by $10x, x being number of bouquets sold) must be greater than the cost to produce (here, -x^4 + 3x^3 + 5x^2 + 20x +1).
Set up an inequality such that 10x is greater than the cost to produce.
10x > -x^4 + 3x^3 + 5x^2 + 20x + 1
-Solving the inequality by subtracting 10x from both sides, we have:
0 > -x^4 + 3x^3 + 5x^2 + 10x + 1
-Using a graphing calculator, (the one they give you on Edgenuity) graph the new function and look for where the graph is below the x axis. (y is less than 0)
Looking at the graph, we see that when x is greater than 0, (you can't sell a negative amount of bouquets) y is greater than 0 up until x = 4.579. After 4.579, the y values become negative. (what we want to be looking at according to the inequality.)
You can't sell 4.579 bouquets, and even if you could, you'd be breaking even, with y=0. The answer isn't 4, because according to the graph and inequality, y would be greater than 0 (making the inequality false). Because of this, we have to find the next whole positive number that would make the inequality true, and that is 5.
Jasmine is thinking about buying a car and is comparing two vehicles. One gets 13 miles to the gallon (mpg) and the other agents 26 miles to the gallon. Assuming that she drives 5,000 miles a year, how much money would she save by buying the more fuel efficient car if gas is $3 a gallon?
Answer:
$576.93
Step-by-step explanation:
Car A
13 miles to the gallon (mpg)
13 miles = 1 gallon
Car B
26 miles to the gallon
26 miles = 1 gallon
Car B is more fuel efficient than car A
1 gallon = $3
Assuming that she drives 5,000 miles a year
Cost of buying Car A
5000 miles / 13 miles × $3
= 384.62 × 3
= $1,153.86
Cost of buying car B
5000 miles / 26 miles × $3
= 192.31 × 3
= $576.93
Car A - car B
= $1,153.86 - $576.93
= $576.93
Jasmine will save $576.93 by buying the more fuel efficient car if gas is $3 per gallon
if LM=3x-9 and MN=x+1, find LN
Answer:
LN=12
Step-by-step explanation:
3x-9=x+1 add 9 to both sides
3x=x+10 subtract 1x on both sides
2x=10 divide by 2
x=5
3(5)=15-9=6
5+1=6
6+6=12
Molly has 1/2 cup of strawberries. She needs 3/8 cup of strawberries to make one batch of muffins. How many batches can she make?
Answer:
1 and 1/8 of a batch
Step-by-step explanation:
First you multiply 1/2 by 4 and get for 8 and then you subtract 4/8 - 3/8 and you take the sum of that and add one hole
As part of a social experiment, Joey sent an email to 2 friends. The email asks the person reading it to forward it to 3 people. The table shows the distribution of the email, assuming that everyone who recelves the email forwards it to 3 new people. Number of iterations Number of People Recelving the Email.
Answer:
I can not see the table, so i will answer this in a general way.
Ok, let's see a rough image of what is happening.
First, Joey sends the email to 2 friends.
So first, 2 people have the email
Then each friend sends the email to 3 new people.
So now the number of people that has the email is:
2 + 2*3 = 2 + 6.
Now, the 6 new people that received the email send it to other 3 new people each, so now the number of people that got the email is:
2 + 6 + 6*3
and so on.
We already can see the pattern here, we can write this as:
∑aₙ
Where aₙ = 3*aₙ₋₁
and a₀ = 2.
So with that information, we can find the number of iterations, n, for a given number of people that received the email A.
A = ∑aₙ = (a₀ + a₁ + a₂ + ....) = (2 + 2*3 + 2*3*3 + ...)
Answer: The answer is C
Which of the following is a rational number????
2,3,4,5
A. 2
B. 3
C. 4
D. 5
please help...............
Answer:
Step-by-step explanation:
130 17/1000
I still dont get this
Answer: 4 x (8 + 5) = (4 x 8) + (4 x 5)
Step-by-step explanation:
multiply the 4 by what is in the ( )
4x8 = 32
4x5= 20
so it equals what is on the other side (in the blanks, you just plug in the 8 and 5)
so it would be
4 x (8 + 5) = (4 x 8) + (4 x 5)
Write 0.54 as a fraction in simplest form.
Question 1
Which of the following equations represents a linear function? Select three that apply.
A
y = 0.5(x + 2)
B
y =
2x2 – 3
с
2
y =
32
X + 67
D
y = 52
E
xy =
4
1
Please help
Answer: A, B, and C
Step-by-step explanation:
A, B, and C are the only 3 that are liner functions
Mahima deposited 178five hundred rupe note in the bank how much money did she deposited in the bank. 4rt class my bro needs answer Plz
A storage unit has the dimensions shown. What number of
12ft x 12ft x 12ft cardboard boxes would it take to completely
fill this storage unit?
6 ft
7+ A
44 ft
Answer:
the number of boxes that would take fill
the storage completely is 60 boxes.
Step-by-step explanation:
given:
A storage unit has the dimensions 6 ft. x 7 1/2 ft. x 4 1/2 ft.
find:
What number of
1 1/2 ft. x 1 1/2 ft. x 1 1/2 ft. cardboard boxes would it take to completely
fill this storage unit?
Volume of a storage unit = 6 x 7.5 x 4.5
Volume of a storage unit = 202.5 ft³
Volume of a cardboard box = 1.5 x 1.5 x 1.5
Volume of a cardboard box = 3.38 ft³
to get the number of cardboard boxes to fill in the storage unit,
Number of boxes = 202.5 ft³
3.38 ft³
Number of boxes = 60
therefore,
the number of boxes that would take fill the storage completely is 60 boxes.
Which expression is represented by the number line?
Answer:
3 - 2.5 - 1
As the first right is positive 3 and the second arrow is at -2.5 and last is at negative 1
☽------------❀-------------☾
Hi there!
~
I think it's (C) [tex]3 - 25 - 1[/tex]
❀Hope this helped you!❀
☽------------❀-------------☾
CAN ANYONE PLZZ TELL ME THE SQUARE OF ALL THE NUMBERS IN THE CLOCK ?
PLZZ
Answer:
1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144
Step-by-step explanation:
HELP MATH TEST I WILL PUT U BRAINLIEST WHICH ARE FUNCTIONS
Answer:
1 = Yes
2 = No
3 = No
4 = Yes
5 = Yes
6 = Yes
7 = No
8 = No
9 = Yes
Carlos is building a game room adjacent to his living room so that both rooms will have the same width. he created the model shown below. (x+4) (2x+6) (x-4)Part A: write an expression for the total area of both rooms Part B: if the length of the game room is 12 feet, what is the total square footage of the two rooms??
Answer:
1,000 sq ft
Step-by-step explanation:
Part A:
To find the total area of both rooms (length x width):
(x+4)(2x+6+x-4)
(x+4)(2x+2+x)
2x²+2x+x²+8x+8+4x
= 3x²+14x+8
Part B:
If the length of the game room = 12 ft, we can solve for x:
Game room = (x-4)=12; therefore x=16
Plug 16 in for x in the equation from Part A:
3x²+14x+8 becomes 3(16)²+14(16)+8
= 1,000 sq ft
(-x^2-x)+(6x^2+6x-7)=
Answer:
5x² + 5x - 7
Step-by-step explanation:
Step 1: Write equation
(-x² - x) + (6x² + 6x - 7)
Step 2: Combine like terms (x²)
5x² - x + 6x - 7
Step 3: Combine like terms (x)
5x² + 5x - 7
Answer:
Step-by-step explanation:
6x^2 + 6x - 7 - x^2 - x
5x^2 + 5x - 7
