factor by grouping
3n^3 - 12n^2 + 2n - 8
(show the work pls..)
Answer:
The answer will be ( n - 4 ) ( 3n² + 2 ).
Step-by-step explanation:
1) Factor out common terms in the first two terms, then in the last two terms.
[tex] {3n}^{2} (n - 4) + 2(n - 4)[/tex]
2) Factor out the common term n - 4.
[tex](n - 4)( {3n}^{2} + 2)[/tex]
Therefor, the answer is ( n - 4 ) ( 3n² + 2 ).
Sally has a discount card that reduces the price of her grocery bill in a certain grocery store by 6%. If c represents the cost of Sally’s groceries, which expression represents Sally’s grocery bill?
Answer:
Step-by-step explanation:
c - 0.06c = 0.94c
total bill = 0.94c
A bird flies south. Its distance from its nest, as a function of time, is modeled by y = 20x + 1. Which statement best describes the function? A. Not enough information is given to decide. B. The function is linear at some points and nonlinear at other points. C. The function is linear. D. The function is nonlinear. SUBMIT
Answer:
Thee function is linear.
Step-by-step explanation:
Answer:
So it becomes a linear equation.
Step-by-step explanation:
Starting at 6:00 a.m., Lin spent a day hiking through a canyon. This graph shows her elevation (in meters) at some different times. Negative values of x represent times earlier than noon, and positive values of x represent times later than noon.
Please help me with this
Answer:
First, we know that the 0 in the horizontal axis corresponds to the noon.
Then:
a) Lin's elevation at noon in meters.
We need to see the elevation when x = 0.
This is the point that is just on top of the y-axis, we can see that when x = 0, we have y = 6.
Then at noon, her altitude was 6 meters.
b) At 8:00 am, her elevation was 2m
Remember that the x-component represents time, and x = 0 represents the noon.
8:00 am is 4 hours before noon, then 8:00am is represented with x = -4
and at this time her elevation is 2m, then y = 2.
This means that the point that represents this is (-4, 2)
c) At 4:00 pm Lin was at sea level (her elevation was 0m)
Same reasoning than before: x = 0 is the noon, then 4:00 pm is four hours after this, then 4:00 pm is represented with x = 4.
And here her altitude is 0m, then y = 0.
This point is written as (4, 0)
d) Here we can see that at 6:00 am her elevation was negative, and at 4:00pm her elevation is 0.
And we know that:
0 > negative numbers.
Then her altitude increased in this interval of time.
Answer:
Its 0
Step-by-step explanation:
can someone help me with this question please
Answer:
-5/4
Step-by-step explanation:
A(0,-1)
B(-4,4)
[tex] \frac{4 + 5}{ - 4 - 0} = - \frac{5}{4} [/tex]
can someone help with this i don't get it
Answer:
Lord have mercy thats a bunch of numbers I woud help but i dont know how to start
Step-by-step explanation:
write an equation of the line that passes through (0 0) and (2 6)
Answer:
y = 3x
Step-by-step explanation:
Slope equation:
y2 - y1
--------
x2 - x1
----------------------------------------------------------------------------------------------------------------
6 - 0 6
m = ----------- = ----- = 3
2 - 0 2
Your slope is 3.
----------------------------------------------------------------------------------------------------------------
Equation:
y = mx + b
Plug in the slope and you get:
y = 3x + b
----------------------------------------------------------------------------------------------------------------
Now to find b, you can use either coordinate point. So I will show you both ways :)
(0,0) (2,6)
0 = 3(0) + b 6 = 3(2) + b
Multiply 0 and 3 Multiply 2 and 3
0 = 0 + b 6 = 6 + b
Subtract 0 to 0 Subtract 6 from 6
0 = b 0 = b
There is no y-intercept
----------------------------------------------------------------------------------------------------------------
Your answer: y = 3x
Hope this helped :)
Factorise fully
8 + 49
Answer: 8 + 49 factored is 57
I hope this helps you
Answer:
57
Step-by-step explanation:
8
+ 49
57
Filipe is buying materials for making his new comic books. He purchases a notebook for $7
and when he rings up it shows he also owes $0.42 in tax. If he buys markers the next day for
$6 and pays the same tax rate, how much will he pay in tax?
Answer:$0.36
Step-by-step explanation:
0.42 devided by 7= 0.06
0.06 times 6= 0.36
Answer:
He would pay $0.36 the next day if he buys markers and pays the same tax rate as day 1.
Step-by-step explanation:
The solution is in the image and the answer is 1a and 1b the question 2 answer isn't relevant to you.
Resolva:
12,548:9
62,547÷7
5,127÷25
is anyone else trying to get help but random accounts don’t stop posting links?
Answer:
I haven't asked any questions but i keep seeing the link. and its all the same one...
Marcello is investigating plant growth. The flowers he planted in his garden were expected to grow two inches in one year. This year there was more rainfall, so the flowers grew three inches. What percentage more did the flowers grow than was expected?
25%
50%
75%
100%
Answer:
50%
Step-by-step explanation:
it was predicted to grow 2 inches and that would be 100% each inch is 50% it grew one inch more than predicted so it grew 50% more
Which angle is congruent to ∠8? Select all that apply.
A. ∠1
B. ∠2
C. ∠3
D. ∠4
Answer:
Angle 1,Angle 4
Step-by-step explanation:
They're
The value of angle ∠1 and angle ∠4 will be congruent with angle ∠8. The correct options are D.
What are lines and angles?Lines are straight with little depth or width. Perpendicular lines, intersecting lines, transversal lines, and other types of lines will be covered. An angle is a shape formed by two rays emerging from a common point. In this field, you may also come across alternate and corresponding angles.
Given that there are two lines e and f cut by the transversal line g making different angles.
From the property of the alternate interior angles the two angles, 1 and 4 are congruent to angle 8. The value is mathematically written as,
∠1 = ∠4 = ∠8
Therefore, the value of angle ∠1 and angle ∠4 will be congruent with angle ∠8. The correct options are D.
To know more about lines and angles follow
https://brainly.com/question/25716982
#SPJ2
Which value of x is a solution to this equation? 5x^2-36x+36
A. -6
B. 4
C. -1.8
D. 1.2
Answer:
D) 1.2
Step-by-step explanation:
Sarah spent $25 at the craft store. She bought one book for $4 and 7 paint brushes for X dollars. Write an equation to describe this situation.
A washer and a dryer cost $928 combined. The washer costs $78 more than the dryer. What is the cost of the dryer?
Answer:
Step-by-step explanation:
$425
Please help me! Anything is appreciated!
Question 10 (45 points)
Which pair of triangles is congruent by ASA?
OL
th
can i get some help!!!
Answer:
i plus mo lng po iyan halimabawa yung number 7.4+8=12 po
Step-by-step explanation:
sana makatulong
simify 43.1(4-7.2)5+3
Answer:
This is your answer ☺️☺️☺️
Answer:
-686.6
Step-by-step explanation:
PEMDAS
43.1(4-7.2)5+3 (We do the equation in the paranthesis 1st)
43.1(-3.2)5 + 3
-137.92*5 + 3
-689.6 + 3
-686.6
Please help I’ll give brainliest if it’s correct !! :)))
Answer:
A textbook weighs about 1 pound and is about 1 foot long
A car weighs about 1 ton and is about 5 yards long
A mosquito weighs about 2 mg and is about 1 inch long
Step-by-step explanation:
#commonsense lol
PLEASE HELP! 15 POINTS! whats the value of b?
Answer:
66.6
Step-by-step explanation:
180-113.4=66.6
Answer:
66.6
Step-by-step explanation:
180-113.4=66.6
helpppppppp fassstttttttt
Answer:
133
Step-by-step explanation:
find volume of sqaure pyramid
Answer:
volume of a pyramid is base area x height
base is a square
Area of a square is L²
L²=5²
L²=25cm²
Height is 5cm
vol of a pyramid =25cm²x5cm
=75cm³.
#2. Write the slope-intercept equation of the
line shown.
Answer:
y = 1/2 x -2
Step-by-step explanatio
Please please help help me please please ASAP ASAP please ASAP thank you
Did this wrong sorry I thought it was greatest to least.
Answer:
-6, -1, 0, 4, 15
Step-by-step explanation:
the higher the negative number is, the smaller it is. its like being in debt
pleaseeee i need help ASAP!!!
Answer:
3734.95
Step-by-step explanation:
Pi = 3.14 to find the radius of a circle we multiply the circumference and Pi. Then square it. So, 34.48x3.14 = 108.2672 then 108.2672² = 3734.94651 which rounds to 3734.95
Write the fraction 3248 in simplest form.
Answer:
Step-by-step explanation:
ok so im not sure what the fraction is.... so i'll put all the choices
3/248= simplified
32/48= 2/3
324/8= 81/2
3248/1= 3248
Someone plz help but instead of sending a link because I can’t open then can you please just tell me, thanks!
Answer:
Options A and C and F are correct.
Step-by-step explanation:
5(2+4)
5*2+5*4
5*6
Have a great day! :)
and can I please have brainliest?
Thanks!
Answer: Your answers would be 5(2+4), 5x2+5x4, and 5x6
Hope this helps you!
1/2 = 1/a + b/c make b the subject
Answer:
b = [tex]\frac{ac-2c}{2a}[/tex]
Step-by-step explanation:
Given
[tex]\frac{1}{2}[/tex] = [tex]\frac{1}{a}[/tex] + [tex]\frac{b}{c}[/tex]
Multiply through by 2ac to clear the fractions
ac = 2c + 2ab ( subtract 2c from both sides )
ac- 2c = 2ab ( divide both sides by 2a )
[tex]\frac{ac-2c}{2a}[/tex] = b