Answer:
−r^3+r^2+r
Step-by-step explanation:
Let's simplify step-by-step.
r^2(r+1)−r(2r^2−1)
Distribute:
=(r^2)(r)+(r^2)(1)+−2r^3+r
=r^3+r^2+−2r^3+r
Combine Like Terms:
=r^3+r^2+−2r^3+r
=(r^3+−2r^3)+(r^2)+(r)
=−r^3+r^2+r
Sorry i could'nt help
Please graph y=2/3-4.
This is about slope.
I would really appreciate it if you would help.
Thanks!
9)
Use VSEPR to predict the electron-pair geometry of N2.
A)
linear
B)
trigonal planar
C)
tetrahedral
D)
trigonal bipyramidal
Answer:
tetrahedral
Step-by-step explanation:
According to the valence shell electron pair repulsion theory (VSEPR) the shape of a molecule is dependent on the number of electron pairs on the valence shell of the central atom in the molecule.
The predicted electron pair geometry may sometimes differ from the molecular geometry due to the presence of lone pairs and multiple bonds.
If we consider each nitrogen atom in N2 independently, we will notice that each nitrogen atom has four regions of electron density. Hence the electron pair geometry is tetrahedral.
A salesman needed to sell a used car. He priced it at $4,500 the first day it was on the
market. The second day he reduced the price by 12%. What was the price of the used car after this reduction?
Answer:
$3960
Step-by-step explanation:
12% of $4,500 is 540.
Subtracting the 12% means taking away $540 from $4,500, which gives you $3960
Please help with work
a factory could produce 84 toy robots in one day. They purchased some new equipment. Now they can produce 105 robots in one day. what is the percent gain?
Answer:
The answer to the question is
25 % increase in production rate
Step-by-step explanation:
To solve the question, we note that
Initial number of products = 84 toy robots per day
Present production rate = 105 robots per day
The percentage increase is given by the increase in production rate divided by the original production rate multiplied by 100
Where increase in production rate = 105 - 84 = 21
Percentage increase = 21/84 ×100 = 25 % increase
Solving One Step Equations. SHOW YOUR WORK
-6 = b/16 solve to find b
Answer:
-96
Step-by-step explanation:
multiply both sides by 16
Which side lengths form a right triangle chose all that apply
Answer:
b
Step-by-step explanation:
only b is true
What are the common factors of 8 and 16
plz help me out with this
Answer:
B and a great deal on a spring break and a good time to get answer for the spread of Islam in the Horn of the following elements has your examination and your
I WILL MARK BRAINLIST! TIS IS SIMPLE PROBABILITY. A bag of game markers contain 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Mario reaches into the bag and pulls out a game marker without looking, what is the probability he will NOT pull out a blue game marker?
A. 1/2
B. 1/3
C. 4.15
D. 2/3
Answer: D. 2/3
Step-by-step explanation:
There are 15 markers in total. Out of these 15 markers, there are 5 blue ones.
If Mark reaches into a bag to pull out one marker and hopes it is not blue, there would be a 2/3 probability as 2/3 of the markers are not blue.
Help me solve this ! Thank you ,
Answer:
170.8
Step-by-step explanation:
which one is greater , 65% or 3/5
Answer:
Step-by-step explanation:
65% is greater
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.
Answer:
4 more students
Step-by-step explanation:
10% of 40 is 4, since the membership went up by 10% it is clear that there are 4 more students that joined the chess club.
Answer:
10/100*40
=4 more students joined the club
Step-by-step explanation:
A map is drawn using a scale of 1cm/80 mi
Two cities are 280 miles apart
How far apart are the cities on the map?
Answer:
280/80 = 28/8 = 7/2 = 3.5 cm
Step-by-step explanation:
the ratio is 1cm/80mi = a cm/280mi
so you get 280cm * mi = 80mi*a cm
so a = 280/80 = 3.5
give answer fast...
it's very important for me....
then I give you 20 thanks...(◍•ᴗ•◍)❤
Answer:
I have the answer
Step-by-step explanation:
Answer:
the required answer is 18
Step-by-step explanation:
see the solution in attached picture
i hope u got it
4(46 + 3) + 2b = 3 (6 - 11)
Answer:
[tex]4(46 + 3) + 2b = 3(6 - 11) \\ 184 + 12 + 2b = 18 - 33 \\ 196 + 2b = - 15 \\ 2b = - 15 - 196 \\ \frac{2b}{2} = \frac{ - 211}{2} \\ b = - 105.5[/tex]
PLSS HELP ILL GIVE BRAINLIEST IF YOU HELP ME AND EXPLAIN UR ANSWER
Answer:
It is the second choice.
Step-by-step explanation:
Divide both side by pi r squared. Boom.
Answer:
h = V/πr²
Step-by-step explanation:
Its asking you to isolate h. You can simply divide on the right besides h on both sides.
V = πr²h
V/πr² = h
The local grocery store will purchase food items and mark them up 115%. If the wholesale price of an item was $3.50, what price will the customer pay for the item?
Answer
10.25
Step-by-step explanation:
pls mark me as brainliest its required :)
What’s the solution for x- 5 =5
Answer:
x=10
Step-by-step explanation:
10-5=5
Answer:
x= 10
Step-by-step explanation:
x-5 =5
x= 5+5
x= 10
zz
if anyone answer this question correctly will get 100 points and a marked brainllest at 1:02 just add me and answer below and its yours.
Answer:
okk thanks for free points
.............
Answer:
1. -2
2. -3
3.
a. 155x+375 >= 900
b. x>=3.38709677. or technically >=4 because you get payed at the end of a week?
Step-by-step explanation:
1. (y-y)/)x-x)
2. same thing
3 a. 155 is the rate, 375 is the starting value
b. subtract 375, divide by 155
For khan academy. Need help . Explain if you can
Answer:
y = 2/3x + 1.5
Step-by-step explanation:
The Formula for that is
y = mx + b
m = slope
b = y -intercept
so to find the slope I would do y/x or rise over run
So your slope is 2/3 ( it goes up 2 and right 3 times)
Since the line is going up and not down, it is a positive slope
y = 2/3x + b
we need to find where the line crosses the vertical / y-axis and it's at the point.... (0,1.5)
y = 2/3x + 1.5
Hope this helped a little!
distributive property -8(1+5m)
Answer:
im pretty sure that it is -48 there is a chance im wrong
Step-by-step explanation:
.
Look at the problem above and please tell me which is correct
I think it's the third 4 ( а² + 2а ) + 9
48 cities three have a lake and 23 have a river running through them what fraction of these 48 cities have a lake or a river running through the show your work
Divide. Write your answer as a fraction in simplest form.
9 3/4 ÷ 4 1/2
Answer:
2 1/6
Step-by-step explanation:
9 3/4÷ 4 1/2
9×4+3/4÷ 4 1/2
36+3/4÷ 4 1/2
39/4÷ 4 1/2
39/4÷4×2+1/2
39/4 ÷ 8+1/2
39/4÷9/2
39/4× 2/9
39×2/ 4×9
78/4×9
78/36
13/6
2 1/6
What value(s) of x make the equation x2 - 18x + 81 = 0 true?
9
-9, 9
0, 9
0, -9, 9
Answer:
the answer is 9
Step-by-step explanation:
just took a test about it
Answer:
A. 9
Step-by-step explanation:
100% correct on edge
please mark brainliest:)
need help asp pls The 8 students in Mrs. Howard's class were asked how many minutes it takes them to get to school in the morning. Here is what they answered:
14, 11, 16, 10, 6, 5, 5, 7
Answer:
what's the question thougu
A number plus 17 is 25 algebraic expression
Answer:
x + 17 = 25
Step-by-step explanation:
x is "a number" and you just add it to 17. (Also the answer would be 8 if you need to solve it too)
The algebraic expression is x + 17 = 25 and the number is 8 if the number plus 17 is 25.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have:
A number plus 17 is 25 algebraic expressions:
Let x be the number:
x + 17 = 25
After solving:
x = 25 - 17
x = 8
Thus, the algebraic expression is x + 17 = 25 and the number is 8 if the number plus 17 is 25.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ2
Tommy's auto mall needs to transport 108 cars. A moving truck can fit 7 cars on each bed. How many trucks does tommy need to relocate all his car? (Do it in long division)
Answer: 15 remainder 3.
Step-by-step explanation:
[tex] \frac{3 {c}^{3}d }{9c {d}^{ - 1} } [/tex]
I dont really understand how to do this fully. I just need to simplify it.