Answer:
-5x(3x+2)²Step-by-step explanation:
Factoring the given expression:
-45x³ - 60x² - 20x = -5x(9x² + 12x + 4) = -5x(9x² + 6x + 6x + 4) = -5x(3x(3x + 2) + 2(3x + 2))-5x(3x + 2)(3x + 2) or -5x(3x+2)²Answer:
−5x(3x+2)^2
Step-by-step explanation:
-45x^3-60x^2-20x
Factor out 5.
5(−9x^3-12x^2-4x)
Consider −9x^3-12x^2-4x. Factor out x.
x(−9x^2−12x−4)
Consider −9x^2−12x−4 Factor the expression by grouping. First, the expression needs to be rewritten as −9x^2+ax+bx−4. To find a and b, set up a system to be solved.
a+b=−12
ab=−9(−4)=36
Since ab is positive, a and b have the same sign. Since a+b is negative, a and b are both negative. List all such integer pairs that give product 36.
−1,−36
−2,−18
−3,−12
−4,−9
−6,−6
Calculate the sum for each pair.
−1−36=−37
−2−18=−20
−3−12=−15
−4−9=−13
−6−6=−12
The solution is the pair that gives sum −12.
a=−6
b=−6
Rewrite −9x^2−12x−4 as (−9x^2−6x)+(−6x−4).
(−9x^2−6x)+(−6x−4)
Factor out −3x in the first and −2 in the second group.
−3x(3x+2)−2(3x+2)
Factor out the common term 3x+2 by using distributive property.
(3x+2)(−3x−2)
Rewrite the complete factored expression.
5x(3x+2)(−3x−2)
How do i measure the circumference of a circle?
Answer:
C=2 x pi x radius
Step-by-step explanation:
this is the formula
Step-by-step explanation:
To calculate the circumference of a circle, multiply the diameter of the circle with π (pi). The circumference can also be calculated by multiplying 2×radius with pi (π=3.14).
C = 2πr
Most of the time, you can leave you answer in terms of pi (Ex: 2π), insteqad of actually multiplying it by pi.
Does this help?
Divide.
Your answer should give the quotient and the remainder.
Quotient:
Remainder:
Tendou-san Look what I found ^^
Answer:
Why do you talk with the other people so much???
Step-by-step explaWnation:
y e s . c a k e . y e s .
Answer:
30 cakes per hour
Step-by-step explanation:
Basically you just find the slope:
[tex]\frac{y2-y1}{x2-21} \\\\\frac{60 - 30}{2-1} \\\\\frac{30}{1}[/tex]
also, yes. cake. *insert emoji with sunglasses here*
Answer:
The answer is 30
have a good day :)
Step-by-step explanation:
Find the inverse of the function f(x) = -5x
Answer:
y=-1/5x
Step-by-step explanation:
y=-5x
x=-5y
y=x/-5
y=-1/5x
Pls help
Thanks have. A good day
Answer:
on 14th day
Step-by-step explanation:
...........
What do you need to do to solve the problem?
x/5= 8
O Multiply each side by 5
O Multiply each side by - 5
O Multiply each side by 1/5
O Multiply each side by - 1/5
Answer:
Multiply each side by 5
Step-by-step explanation:
Multiplying and dividing are opposite recipricols, so to undo one, we just to the other. If we multiply something by 5, it will get of the fraction where x is being divided by 5
Answer:
all the options are correct
What is the sum of 4 and its additive inverse?

The additive inverse is the opposite sign quantity so the sum of 4 and its additive inverse will be 0.
What is summation?A summation, also abbreviated as a sum, is the outcome of adding two or more numbers or quantities. Here are always an integer number of terms in a summation.
Given the number 4.
The sign of the number 4 is positive.
An additive inverse is a number whose sign is opposite to the number.
For example, the additive inverse of -5 is 5, and 5 is -5.
So additive inverse of 4 will be -4.
Now sum of 4 and -4
4 + (-4) = 0
Hence "The additive inverse is the opposite sign quantity so the sum of 4 and its additive inverse will be 0".
For more information about summation
brainly.com/question/10777222
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What is the radius of the circle?
Answer:
5 cm
Step-by-step explanation:
To find the radius, divide the diameter by 2.
10/2 = 5
An electrician bought 120 feet of electrical wire and used 105 feet of it
What percent of the wire went unused?
A 15%
B 12.5%
C 8.75%
D 7%
Answer:
B. 12.5%
Step-by-step explanation:
Find how much was unused:
120 - 105
= 15
To find what percent this is, divide it by 120:
15/120
= 0.125
Multiply this by 100:
0.125(100)
= 12.5
So, 12.5% of the wire went unused
The correct answer is B. 12.5%
Fahima buys
2 packets of bread rolls costing £1.50 for each packet
1 bottle of ketchup costing £1.60
3 packets of sausages
Fahima pays with a £10 note.
She gets 30p change.
Fahima works out that one packet of sausages costs £2.30
Is Fahima right?
You must show how you get your answer.
?
Answer:
Fatima is wrong
Step-by-step explanation:
1.50*2=$3
ketchup=$1.60
3*2.30=$6.9
3+1.60+6.9=$11.5
so i dont think that fatima can pay it with just $10.
Ned needs to solve the division problem shown. 40 ÷ 8=
Answer:
5
Step-by-step explanation:
40/8=5 memorize multiplication table
Answer: 5
Step-by-step explanation: sorry if it looks messed up=3
0 5
----------------
8 / 40
− 0
-----------------------
4 0
− 4 0
------------------------
0
find domain and range of x²-9/x-3
Answer:
Step-by-step explanation: hope this helps :)
DOMAIN: (-INFINITY,0)
RANGE:(-INIFINITY,INFINITY)
Given that = 3.14, calculate the circumference of the circle with radius 10cm.
GENGUR
20. Gençlik ve Spor bakanlığının düzenlemiş
olduğu Gençlik Kamplarına bu yıl her ilden 16
öğrenci katılmıştır.
Torkiye'de 81 l bulunduğuna göre Gençlik
kamplarne katılan toplam Oğrenci sayısı kaçtır?
Answer:
11 cevapppppppppppppp bb
(08.01)
Given the arithmetic sequence an = 4 + 8(n - 1), what is the domain for n? (1
point)
All integers
All integers where n > 1
All integers where n > 0
All integers where n > 1
HELP ASAP!!!!!! 34 ÷ (14 − 5) × 2
Answer:
B
Step-by-step explanation:
Answer:
14-5=9, then 34 / 9 x 2, 9x2=18, 34 / 18= 1.888888 orrrr 34 / 9= 3.7777 that x 2 = 7.55555554
y'all please answer this, i asked this two times already :(
A digital thermometer records the daily high and low temperatures. The high for the day was -5 C. The low was -12 C. What was the difference between the day's high and low temperature
Answer:
-7 C
Step-by-step explanation:
The difference between -5 C and -12 C is -7 C, since -12 - (-5) = -7
Answer:
7 degrees celsius
Step-by-step explanation:
because from -5 to -12 it is 7
1. Expresa cada función cuadrática f en la forma f(x)-yo = p(x – xo) x ϵ R, donde xo , yo , p ϵ R son elegidos apropiadamente. Indica las coordenadas
del vértice de la parábola, el mínimo o máximo de la función f, sobre todo R. Traza la gráfica de f.
a) f(x)= 2x2 + 3x -5, ϵ R,
b) f(x)= -3x2 + 7x +9, ϵ R,
c) f(x)= - x +1, ϵ R,
AYUDA LE DARE CORONA PLIS
Answer:
Step-by-step explanation:
1. Express each quadratic function f in the form f (x) -yo = p (x - xo) x ϵ R, where xo, i, p ϵ R are appropriately chosen. Indicate the coordinates
of the vertex of the parabola, the minimum or maximum of the function f, especially R. Draw the graph of f.
a) f (x) = 2x2 + 3x -5, ϵ R,
b) f (x) = -3x2 + 7x +9, ϵ R,
c) f (x) = - x +1, ϵ R,
HELP YOU GIVE YOU CORONA PLIS
Jane and 3 friends decided to split the cost of a pizza evenly. The total cost was $25.48. How much does each friend have to pay?
Answer:
$6.37
Step-by-step explanation:
Jane and 3 friends = Jane + another 3 people
= 4 people in total
Total Cost of pizza = $25.48
If 4 people split $25.48 evenly,
Amount each friend has to pay = Total Cost of pizza/Total number of people
= $25.48/4
= $6.37 per friend
Each friend has to pay $6.37 each if $25.48 is splitted evenly amongst them
Mari spends $6 on cheese for a party she also plans to buy b boxes of crackers that cost $3 per box
Answer:
The answer is 6+3b<or equal to 15
Step-by-step explanation:
A man invests 10000 for 3 years at a certain rate of interest, compounded annually. At the
end of one year, it amounts to 11200. Calculate :
(i) the rate of interest per annum;
(ii) the interest accrued in the second year;
(ii) the amount at the end of the third year.
Step-by-step explanation:
10000, After 1 year amount = 11200 so interest after 1 year = 1200
Amount = P(1+R/100)T
11200 = 10000(1+R/100)1
R = 12%
Interest for the second year = 11200(1+12/100)1 - 11200 = 1344
after 3 years = 10000(1+12/100)3 = 14049.28
Step-by-step explanation:
(I) Principle = Rs 10000, After 1 year amount
= Rs 11200 so interest after 1 year
= Rs 1200
R = 12%
Amount = P(1+R/100)T
11200 = 10000(1+R/100)1
R = 12%——————————————————————————————————————
(Ii)Interest for second year = 11200(1+12/100)1 - 11200 = Rs 1344
(iii)Amount after 3 year = 10000(1+12/100)3 = Rs 14049.28
An Xbox has a retail price of $350. Best Buy is offering a 15% discount on the system. How much will the Xbox cost after the discount?
Answer:
About 297.50$
becuase since i actually have an xbox with that same discount i know the answer
Answer:
you will pay 297.50$
you are saving 52.50$
The camping trip costs $165. How long will it take you to save enough money?
25 Points I guess.
Answer:
11 weeks
Step-by-step explanation:
$165 / 15 = 11 weeks
11 weeks
Hope that helps!
The equation of line is given by y = 15x and the number of weeks to save enough money is 11 weeks
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the number of weeks be x
Let the cost of trip be y
Let the equation of line be represented as A
Now , the value of A is
Let the first point be P ( 4 , 60 )
Let the second point be Q ( 8 , 120 )
Now , the slope of the line between the two points is
Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
Slope m = ( 120 - 60 ) / ( 8 - 4 )
On simplifying the equation , we get
Slope m = 60 / 4
Slope m = 15
Now , the equation of line is y - y₁ = m ( x - x₁ )
Substituting the values in the equation , we get
y - 60 = 15 ( x - 4 )
On simplifying the equation , we get
y - 60 = 15x - 60
Adding 60 on both sides of the equation , we get
y = 15x
Now , the cost of the camping trip is $ 165
Substitute the value of y = 165 , we get
165 = 15x
Divide by 15 on both sides of the equation , we get
x = 165/15
x = 11 weeks
Therefore , the value of x is 11 weeks
Hence , the equation is y = 15x
To learn more about equation of line click :
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Checking account earnings at Baker's Bank are expressed by the equation: I = -0.09x + 10.2.
While the earnings at Elite Bank are modeled by: I = -0.02% + 7.5.
In both cases, x is the number of checks written.
At what number of checks will Elite Bank start generating more checking account income than Baker's
Bank?
A. 12
B. 25
C. 39
D.42
ANSWER IS B
Hope i got this right
Answer:
The answer is C. 39
Step-by-step explanation:
HELPPPPPPPPPPPPPPP!! I WILL MARK YOU THE BRAINLIEST!!!! PLEASE IM REALLY STRUGGLING.
Answer:
b
Step-by-step explanation:
Will has 35 buttons. He puts 5 buttons on his backpack. How many
buttons does Will have left?
Answer: 30 buttons
35 - 5 = 30
Answer:
30
35-5=30
Step-by-step explanation:
WILL GUVE BRAINMIEST HURRY PLS
Answer:
pi= 3.14159
r= half of diameter , it is 4
h= 20
v= pi (4) ^2 (20)
Step-by-step explanation:
Help Please :)
I'm not sure if I'm correct.
Answer:
You are correct!
PLEASE HELP, I’ll give brainliest to anyone who answers first!!!!
Answer:
opotion 2!
Step-by-step explanation:
Write the equation of the line that passes through each pair of points (-2,0) (-1,-3)
Answer:
y = − 3 x − 6
Step-by-step explanation:
I hope this helps you