Answers
Denote x2 by y.
(x2-3)7=(y-3)7
This is a binomial expansion in y, and you want the coefficient of y4 because y4=x8
You have 7 terms of (y-3) in (y-3)7. To get the fourth power of y, you need to choose y from four of the terms. The number of ways you can do this is the combinations of 7 things taken 4 at a time. This is:
7!/(4!3!)=35
So, the coefficient of x8 in the given expansion will be 210.
HOPE IT HELPS
THANK YOU
Related Questions
Real I need help ppplllsss
Answers
Answer:
the answer is a or c help it help it helps
Can somebody please help me with these pleaseeeee!
Answers
Second one is 180-(120+24)= 36
please help im crying
Answers
Answer:
length=91
width=2
Step-by-step explanation:
182/2=91
91*2=182
The graph of y= x^2 +4x +3 is shown
work out a and b please
Answers
Answer:
A.) i think it's (-2, -1)
B.) ?
Step-by-step explanation:
I am very sorry if they are wrong....i don't know B..sorry
Answer:
b = (-1,0) (-3,0)
Step-by-step explanation:
Write an explicit formula for an, the nth term of the sequence 15, 12,9,....
Answers
Answer:
18-3n
Step-by-step explanation:
18-3(1)=15
18-3(2)=12
etc
etc
Help plz
Sharon and Kay went to a craft show with their
granddaughters. Sharon bought 1 adult ticket and 2
child tickets and spent $28. Kay brought 2 adult tickets
and 3 child tickets and spent $48. Use 'x' to represent
adult tickets and "y" to represent children tickets.
Answers
How do I do this/solve help me if you know it!
Answers
Answer:
it should be B, sorry if im wrong! :(
Step-by-step explanation:
Evaluate x+5 if x=9 please help
Answers
Answer:
14
Step-by-step explanation:
if you plug in 9 for x in the equation x+5, you get 9+5
9+5=14
Answer:
14
Step-by-step explanation:
If it is x+5 and x=9 it is the as
9+5=14
So it would be 14, you just need to plug in the x
The sum of three consecutive odd integers is –87. What are the integers?
A.
–31, –33, –35
B.
–30, –29, –28
C.
–31, –30, –29
D.
–31, –29, –27
Answers
You buy 11 bagels with a $20 bill. How much change do you receive?
Answers
well 6 bagels cost $7.50 and you bought 11 bagel with a $20 dollar bill
so answer that
In his last basketball game, Chris attempted a total of 25 shots and made 18 of them.What is the ratio of how many shots missed and how many shots made?
Answers
Answer:
7:18
Step-by-step explanation:
Chris attempted a total of 25 shots
He made 18 shots
Number of shots missed= 25-18
= 7
Therefore the ratio of shots missed and shots made can be calculated as follows
7:18
Hence the ratio is 7:18
Help me please........
Answers
Answer:
(7, -1)
Step-by-step explanation:
Look at vertex R. The x is 7. Q has the same x value as R and same Y value as P.
1. You have a CD account at local bank. Your opening
balance is $9000. The compound interest rate that bank is
paying you 0.70% annually.
A) What is the interest earned after 6 years?
Answers
Answer:
$378
Step-by-step explanation:
(9000 x 0.70%) * 6 = 378
The table shows the time Merrida spent driving and the number of miles she drove. She drove the same number of miles each hour.
Merrida’s Driving Time and Distance
Miles
Hours
140
4
175
5
210
6
How many miles did she travel each hour?
23 miles per hour
35 miles per hour
42 miles per hour
53 miles per hour
Answers
Answer:
35 miles per hour.
Step-by-step explanation:
140÷4=35
!75÷5=35
210÷6=35
Answer:
❌23 miles per hour
✅35 miles per hour
❌42 miles per hour
❌53 miles per hour
Go follow me on T I k T o k aiyana_parker
PLS help me
this is for class, if you get it right i will give brainliest
Answers
Answer:
Yes
Step-by-step explanation:
a^2+b^2=c^2
7^2+11^2=c^2
49+121=c^2
170=c^2
then square it
c=13
7,11,13 is a pythagorean triple
Answer:
both answers you have put in are correct
Step-by-step explanation:
7^2=49
11^2=121
121+49=170
square root of 170 is the long side
not a pythagorean triple because square root of 170 does not come out as a whole number (no decimal/fraction)
is it ~13.0384
Skyla wants to buy a massage table to start her spa business. She sees one she wants for $1,200. If she can save $13 a week, how many weeks will it take her to save up for the massage table?
Answers
Answer:
27 because you have to multipli and then divide
Answer:
about 93 weeks
Step-by-step explanation:
divide 1200 by 13 to get your answer which is 92.3076923077 so then you just instead of rounding to 92 you would round to 93 because it would take her more then 92 weeks so the answer would be about 93 weeks
which term is related to electromagnetism applies only to the magnetic force
a. non-contact
b. poles
c. protons
d. attraction
HELP quick i am on a timed test!
Answers
A. non-contact
B. poles
C. protons
D. attraction
ANSWER:B.Poles is related to electromagnetism applies only to the magnetic forceHopeItHelps you
Bozena is an ecologist who studies the change in the tiger population of Siberia over time. The relationship between the elapsed time t tt, in years, since Bozena started studying the population, and the number of tigers, N ( t ) N(t)N, left parenthesis, t, right parenthesis, is modeled by the following function: N(t)=537⋅(0.35)t2 Complete the following sentence about the rate of change in the tiger population. The population of tigers loses 65 % 65%65, percent of its size every years.
Answers
Answer:
every 2 years
Step-by-step explanation:
since it is t/2 for the exponent - thas the answer on khan
The rate of change in the population of the Siberian tigers loses 65% every two years.
What is an exponent?Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. X is the base and n is the power.
Bozena is an ecologist who studies the change in the tiger population of Siberia over time. The relationship between the elapsed time t, in years, since Bozena started studying the population, and the number of tigers, N(t), is modeled by the following function:
[tex]\rm N(t)=537\times (0.35)^{t/2}[/tex]
Then it is clear that the population of the Siberian tigers loses 65% of its size every two years.
More about the exponent link is given below.
https://brainly.com/question/5497425
#SPJ2
2. (7.3B)Gwen has $29.00. If she buys 2 shortcakes at $3.99 each and 7 pounds of strawberries
for $7.67 from the grocery store, how much money will Gwen have left in dollars and cents ?
A) $14.00
B) $32.99
C) $20.50
D) $13.35
Answers
Answer:
d. $13.35
Step-by-step explanation:
subtract
i am so sorry if this is wrong! hope this helps:)
How will you remember the slopes of the horizontal and vertical lines?
Answers
Answer:
The slope of a horizontal line = 0, not undefined. The slope of a vertical line = undefined.
Step-by-step explanation:
HELP ASAP
The blue triangle is dilated to the red triangle from the
dilation point of (0,0). What is the zoom factor?
Submit and Explain
15
Answers
Answer: Scale Factor = 3
Step-by-step explanation:
The top side of the blue triangle is equal to 2 and the top side of the red triangle is equal to 6. Therefore you hav to divide 6 by 2 to give you the scale factor which is 3. (Sorry I do not know if zoom factor is the same as scale factor)
Graph
y−2=23(x+4)
I don’t no how to graph so plz help me
Answers
Answer: This file i added shows the graph. If it doesnt help, then you can use M.a.th w.a.y to find the graph
Step-by-step explanation:
Could someone good at geometry help me please. I will mark brainliest!! :)
Answers
Sam went to see a movie that started at 5:05 PM.
The movie lasted 2 hours and 40 minutes.
What time did the movie end?
Answers
Sushil and Fiona win some money and share it in the ratio 4:1. Sushil gets £33 more than
Fiona. How much did they get altogether?
Answers
Fiona x
Sushli x+33
X+33=4x
3x=33
x=11
x+4x=5x=£55
What are the zeros of the function (x) = x2 – 3x+2?
Answers
Step-by-step explanation:
f(x) = x² - 3x + 2 = (x - 2)(x - 1).
When f(x) = 0, (x - 2)(x - 1) = 0.
=> x = 2 or x = 1.
write an equation of the line and interpret the slope
Answers
Answer:
Step-by-step explanation:
Slope of this line will be= m= (600-200)/(1-5)
m = 400/-4 = -100
Eq of line will be:
(y-y1)=m(x-x1)
y-200=-100(x-5)
y-200+100x-500=0
100x+y-700 = 0
To write equation in slope-intercept form
y=mx+c
just seperate "y"
y=-100x+700
Hey there!
The answer to your question is [tex]y = -100x + 500[/tex]
To write this equation in slope-intercept form, first we must figure out the slope. We can do this using the formula
[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]:
[tex]\frac{200-600}{5-1}[/tex]
[tex]\frac{-400}{4}[/tex]
[tex]-100[/tex]
Now, we have part of the equation: y = -100x + b. We have to find b, and we can do so by plugging in one of the points into the equation, like so:
[tex]600 = -100(1) + b[/tex]
[tex]600 = -100 + b[/tex]
[tex]500 = b[/tex]
Now, we have our equation:[tex]y = -100x + 500[/tex]
Hope it helps and have an amazing day!
the base of a parallelogram is 2
more than the height
The area of the parallelogram is 120yd^2, find the base and the height
Answers
Answer22:22
Step-by-step explanation:
Ivan in inventory has a whole bunch of numbers just sitting around. He wants to build a “Multiples of 2” set in his free time. How can he tell which numbers belong in this set?
Answers
Answer:
If they are divisible by 2
Step-by-step explanation:
:))
like ex.
2 4 6 8 10 12
The temperature was 75° Fahrenheit. The temperature dropped at a rate of 10° per hour.
What was the temperature in degrees 8 hours later?
Answers
Answer:
-5 degrees
Step-by-step explanation:
you started at 75 degrees. it dropped at a rate of 10 degrees per hour. It's been eight hours. 8 times 10 equals 80. It dropped a total of 80 degrees. the starting 75 degrees minus the current 80 degrees equals -5 degrees.
