Answer:
18y−9
Step-by-step explanation:
Answer:
-9 - (-18y)
simplified more answer : -9 + 18y
if the 06 is a decimal then: answer: -9 - (-1.8y)
more simplfied answer: -9 + 1.8y
Step-by-step explanation: -3 x 3 = -9
-3 x 6y = -18 y
(if 06 a decimal: -3 x 0.6y = -1.8y)
variable answers (answers with a letter ) cannot be added together with a non variable answer
120 cm
B
Which pairs of rectangles are similar polygons?
Select Similar or Not Similar for each pair of rectangles.
90 cm
105 cm
А
C
100 cm
Similar
Not Similar
80 cm
A and B
75 cm
B and C
A and
Answer: a and b only are similar
Step-by-step explanation:
Ad/ab= de/bc similar triangles have proportional sides
Answer:
The true answer below
Step-by-step explanation:
A farming community begins with one resident. Then every year, the number of residents multiplies by 10 Write an expression using an exponent to
represent the number of residents in the community after 5 years
Answer:
After 10 years , the number of residents in the community = 100,007.45
Step-by-step explanation:
Let P be the population of a farming community.
As we know that,
Exponential Growth model is :
P(t) = P₀[tex]e^{kt}[/tex] ........(1)
where P₀ is the initial state , k is the growth constant.
As given,
A farming community begins with one resident.
⇒At t = 0 , P(t) = 1
∴ Put t = 0 in equation (1), we get
1 = P₀[tex]e^{0}[/tex]
⇒1 = P₀
∴ equation (1) becomes
P(t) = [tex]e^{kt}[/tex] ......(2)
As given, every year, the number of residents multiplies by 10
⇒At t = 1 , P(t) = 10
∴ Put t = 1 in equation (2), we get
10 = [tex]e^{k}[/tex]
Taking ln both side we get
ln(10) = ln([tex]e^{k}[/tex] )
⇒2.3026 = k
∴ equation (2) becomes
P(t) = [tex]e^{2.3026t }[/tex]
Now, we have to find the population at t = 5
⇒P(5) = [tex]e^{5(2.3026} = e^{11.513} = 100,007.45[/tex]
So, we get
After 10 years , the number of residents in the community = 100,007.45
Given the vertex (2,0) and the point on the parabola (1, 3) find the quadratic equation
Answer:
[tex]y=3(x-2)^2[/tex]
Step-by-step explanation:
The vertex form of the quadratic function has the following equation:
[tex]y=a(x-h)^2+k[/tex]
Where (h, k) is the vertex of the parabola, and a is a coefficient different from zero.
We are given the vertex located at (2,0). The equation is now:
[tex]y=a(x-2)^2+0[/tex]
[tex]y=a(x-2)^2[/tex]
Since we know the point (1,3) is on the parabola:
[tex]3=a(1-2)^2[/tex]
3=a(1)
a = 3
Finally, the quadratic equation is:
[tex]\mathbf{y=3(x-2)^2}[/tex]
which of these operations should be completed first.…
Answer:
brackets
Step-by-step explanation:
Ya ave to use BIDMAS nd the B in BIDMAS stands for brackets
What is the value of the expression "eight more than three times the difference of four and a number" when n =
3?
□44
□19
□17
□11
Answer:
11
Step-by-step explanation:
3 (4 - n) + 8
When n = 3:
3 (4 - 3) + 8
3 (1) + 8
3 + 8
11
Answer:
11
Step-by-step explanation:
The number of sunflowers (s) in the garden is one more
than twice the number of roses (r):
is it inequality it not
what's its inequality model—×??
Answer:
s = 2r + 1
Step-by-step explanation:
Number of sunflower (s) is 1 more than twice the number of roses (r)
Mathematically ;
Number of sunflower = 1 + 2 * number of roses
Sunflower = s ; roses = r
s = 2r + 1
We want to study the relation between the number of sunflowers and roses, we will see that it is an equation and the equation is:
s = 2*r + 1
So we know that the number of sunflowers is one more than twice the number of roses, notice that it represents an equation (so it is not an inequality)
And the equation can be written as:
s = 2*r + 1
The number of sunflowers is 2 times the number of roses, plus 1.
If you want to learn more, you can read:
https://brainly.com/question/11897796
What proportion can be used when there is a %, the word "is" and the "of" in a problem?
Answer:
C. is / of = % / 100Step-by-step explanation:
We can interpret this as:
x% of y is zCalculation is:
x*y/ 100 = zTranslate this into the given format:
% * of / 100 = is ⇒ % / 100 = is / ofThis matches option C
state if polygons are similar
a certain state the license plate has two digits, then two letters, and then two digits. How many different license plates are possible if letters and digits cannot be repeated?
Step-by-step explanation:
Choosing 4 digits out of 10 = 10C4 = 210.
Arranging the 4 digits in 4 places = 4!
Total number of ways to arrange digits
= 210 * 4! = 5040.
Choosing 2 letters out of 26 = 26C2 = 325
Arranging the 2 letters in 2 places = 2!
Total number of ways to arrange letters
= 325 * 2! = 650.
Total number of possible license plates
= 5040 * 650 = 3,276,000.
Answer:
3,276,000
Step-by-step explanation:
10 x 9 x 26 x 25 x 8 x 7 = 3,276,000
the numbers 10, 9, 8, 7 are the spaces available for a non-duplicated digit
the numbers 26 and 25 are for two non-duplicated letters
help please !! easy question i believe :))
What is the value of X?
Help!! I would thank you a lot
Answer:
B
Step-by-step explanation:
PLEASE ANSWER ASAP !!!!!
k(6)=0
#pglubestiehere
Answer: 0
Step-by-step explanation:
1) Go to x-value (6)
2) Locate the point
3) Identify the y -value
4) k(6) = 0
Solve for x
7x = 2
Give your answer as a fraction in its simplest form
Answer:
2/7
Step-by-step explanation:
7x/7=2/7
Simplify:Cancel terms that are both the numerator and denominator
Solution: 2/7
There is a different one like this but it doesn’t have the answer so plz help and this is my 2 try
Answer:
it's c
Step-by-step explanation:
4 times 10 times 6 is 240 and you use volume because its by 3 values.
hope this helped!
Need help with these 2 questions pls help me will mark brainiest.
Answer:
Q2. CQ3. AStep-by-step explanation:
Q2
Given is the horizontal line x = 2It has zero slope as vertical change (rise) is zeroCorrect option is CQ3
The line is proportional relationship y = kx
Using point (8, 40), we can find the value of k:
40 = 8kk = 40/8k = 5Roland earns $5 per hour
Correct option is A
Lattice has £15000 in a savings account at the start of the year. How much will she have at the end of the year if the annual interest rate is 7.5%?
Answer:
£13 875
Step-by-step explanation:
first you have to find out how much is 7.5% of 15 000 and you find it by calculating 0,075 times 15 000 which becomes 1 125. then you take out that answer from your first answer which is 15 000 - 1 125= 13 875
Complete the statements.
Graph ____has one real root.
Graph ____ has a negative discriminant.
Graph ____has an equation with coefficients
Patrick is riding his bike on a rectangular path around his city.
There is a rest area at each of the path's four corners.
• The city map shows the corners marked with coordinates of (2, 2), (1, 2), (1, -2), and (-2,-2).
Each unit represents 2.5 miles.
What is the perimeter of the path, in miles?
With the given coordinates it doesn't form a rectangle the correct set of the coordinates should be (2, 2), (1, 2), (1, -2), and (2,-2).
Answer:
The perimeter of the given rectangle that is formed by the given coordinates is 30miles.
Step-by-step explanation:
We are given the Rectangular coordinates such as
(2,2) , (1,2) ,(1,-2) (2,-2)
we will mark these point on the cartesian planes to understand the rectangle
We can apply the distance formula or we can just look on the cartesian plane to simply get the distance between two points
we get
[(2,2) ,(1,2) ] and [(1,-2) ,(2,-2) ] are two units apart each pair as they are parallel so our width is
W = 2 units
similarly
we now need the length
(1,2) and (1,-2) are four units apart
so our length will be four units
L= 4 units
we need the perimeter
Perimeter of the rectangle = 2( L+W)
= 2( 2 + 4)
= 2* 6 = 12units
Now we are given that 1 unit is equal to 2.5 miles so 12 units will be
= 12* 2.5 = 30 miles
Therefore The perimeter of the given rectangle that is formed by the given coordinates is 30miles.
PLEASE HELP !!!!!!!!!
Answer:
3[tex]x^{4}[/tex] - 10x³ - x² - 11x + 6
Step-by-step explanation:
Each term on the upper row is multiplied by each term on the lower row.
This can be expressed as
3x²(x² - 5x + 2) + 2x(x² - 5x + 2) + 3(x² - 5x + 2) ← distribute parenthesis
= 3[tex]x^{4}[/tex] - 15x³ + 6x² + 2x³ - 10x² + 4x + 3x² - 15x + 6 ← collect like terms
= 3[tex]x^{4}[/tex] - 10x³ - x² - 11x + 6
someone pls help me with math
Answer:
4x/5-2
Step-by-step explanation:
(2a-3)(b-a)-3a(3a+b)
Answer: -ab - 11a^2 - 3b + 3a
Step-by-step explanation:
i think this is what you're wanting? if not just comment what you need and i'll retry it!
Classify 5x5 - 5x3 + 2x2 by degree.
Answer:
295 is the answer... god bless
Answer25
Step-by-step explanation:
5 1/6 x 2 2/7 as a mixed number
Answer:
11 17/21 :)
Step-by-step explanation:
what is 6.1 - 18.7 ?
Answer:
-12.6
Step-by-step explanation:
Answer:
12.6 this is the answer
Step-by-step explanation:
sporting get up in subtracting numbers
Is this correct??????
Answer:
yes it is great job
Step-by-step explanation:
PLS HELP, I NEED THIS, 25 POINTS IM GIVING BRAINLIEST
For the following linear equation, what are the slope and the y-intercept?
y=x-3
Enter the slope into the first blank and the y-intercept into the second blank.
Answer:
The slope is 1, and the y-intercept is -3
Step-by-step explanation:
The slope (m), is always the number directly in front of the x. when their is no number, m=1. The y-intercept is the number at the end of the equation (b). In this case, b=-3.
The scatterplot for number of enrollments, N, in a sports club, t years after the
year 2006. The equation of the line of the best fit is N = 62t + 35. Find the residual
for the number of enrollments in year 2020 if the actual enrollment is 885
students.
Answer:
13.7 years
Step-by-step explanation:
The equation of the line of the best fit is N = 62t + 35
where
N is the number of enrollments
t is years after the year 2006
If the actual enrollment is 885 students. Put N = 885 in the given equation.
885 = 62t + 35
or
885 -35 = 62t
850 = 62t
t = 13.7 years
So, the required answer is 13.7 years.
HELP ME PLEASE: Daniel opened a savings account with $1600 The peas no interest. And additional $300 each week thereafter. how much money would Daniel have in the account 25 weeks after opening the account?
Is this a function? Yes or no
{(2,5), (3,6), (4,7), (5,8), (6,9)}
Answer:
No
Hope I helped!
Step-by-step explanation:
Answer: no
Step-by-step explanation: the domain value 6 is paired with both 9 and 10. 3. {(2, 2), (−1, 5), (5, 2), ... yes. 28. {(4, 5), (3, −2), (−2, 5), (4, 7)}. ANSWER: no. 29. y = −8 no.