1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Olegator [25]
4 years ago
8

999^2-998^2 Explain w/ steps. Thank you

Mathematics
2 answers:
klemol [59]4 years ago
8 0
The answer would be 1997
Kisachek [45]4 years ago
4 0

Answer:

1997

Step-by-step explanation:

999^2 = 999 x 999 = 998,001

998 ^ 2 = 998 x 998 = 996,004

998,001 - 996, 004 = 1997

Hope this helps

:)

You might be interested in
What is 36% of 745? Show work
kogti [31]
745/x=100/36
<span>(745/x)*x=(100/36)*x
</span><span>745=2.7777777777778*x
</span>(2.7777777777778) to get x
<span>745/2.7777777777778=x </span>
<span>268.2=x </span>
<span>x=268.2
</span>
answer <span>36% of 745=268.2</span>
8 0
3 years ago
Find the recurrence relation satisfied by rn, where rn is the number of regions that a plane is divided into by n lines, if no t
joja [24]
1. Take a look at the pictures attached.

2. 

i) the first line divides the plane into 2 regions 

ii) the second line adds 2 more regions so we have 4 in total.

iii) the third line adds 3 more regions, so 4+3=7 regions

iv) the fourth line adds 4 more regions.

so the n^{th} line adds n more regions to the ones created by the previous n-1 lines.

3. 

r_1=2

r_2=2+2=4

r_3=4+3=7

r_4=7+4=11

r_n=r_n_-_1+n

So the recurrence relation is

r_1=2
r_n=r_n_-_1+n

5 0
3 years ago
Triangle NMO has vertices at N(−5, 2), M(−2, 1), O(−3 , 3). Determine the vertices of image N′M′O′ if the preimage is reflected
Firdavs [7]

Notice that the reflection is over a line of the form x=constant; in this case, the y-coordinate of the reflected point stays the same while the x-coordinate changes as expressed by the transformation below

\begin{gathered} y\rightarrow y \\ x\rightarrow2a+x \\ where \\ x=a\rightarrow\text{ vertical line} \end{gathered}

Hence, in our case

\Rightarrow(x,y)=(2*-4-x,y)=(-8-x,y)

Transform points N, M, and O accordingly,

\begin{gathered} \Rightarrow N^{\prime}=(-8-(-5),2)=(-8+5,2)=(-3,2) \\ \Rightarrow M^{\prime}=(-8-(-2),1)=(-6,1) \\ \Rightarrow O^{\prime}=(-8-(-3),3)=(-5,3) \end{gathered}<h2>Therefore, the answer is the first option (top to bottom)</h2>

6 0
1 year ago
How to factor out tue coefficient of the variable
PIT_PIT [208]
Lets say you have a question such as 7x+1=15.

First you have to start with the addition or subtraction because of PEMDAS. In order to get rid of the +1, you have to subtract 1 from it and do the same thing to the number on the other side of the equal sign.
7x+1-1=15-1
Which leaves you with
7x=14
What you want to do is get the variable by itself so, since the variable is basically multiplying itself by the coefficient, you want to divide the 7x by 7 to get rid of the coefficient. Make sure to do the same for both sides of the equation!
7x/7=14/7

x=2

Thats the answer.
Hopefully you can figure this out on your own problem.
7 0
3 years ago
Four expressions are shown below:
ivanzaharov [21]

Answer: The correct answer is number 4.

Step-by-step explanation: First, solve the (). 7x + x or 7x + 1x = 8x. Now, you have 4(8x + 2). That would be the first choice, A. But what about the second one? Well, 4 x 8x would be 32x, and 4 x 2 would be 8. Now put that together. 32x + 8. Is there an expression like that? Yes, there is. Choice C. Now that means choice A and C are equivalent to 4(7x + 2 + x). Only number 4 holds those choices, so your answer would be number 4. Hope this helped! :)

8 0
3 years ago
Other questions:
  • What is the greatest perfect square that is a factor of 756?
    15·1 answer
  • Which statement best expresses the total value (v) of a stash of cash of (n) bundles of $15.00 each?
    13·2 answers
  • What is the derivative of y=e−1y=e^(-1)?
    7·2 answers
  • A lion runs 50 mph and a cheetah runs 74 mph. How far does the cheetah run in the time it takes the lion to run 75 miles? pls sh
    12·1 answer
  • Help me please, I really suck at math and I need help
    11·1 answer
  • Which expression represents the expression 20 x − 10 20 ⁢ x - 10 after it has been factored completely? A. 2 ( 10 x − 5 ) 2 ⁢ (
    6·1 answer
  • Helppppppppppp meeeeeeeeeeeedee
    8·1 answer
  • In a recent year, 27.8% of all registered doctors were female. If there were 43,600 female registered doctors that year, what wa
    7·1 answer
  • Erin spent $15.75 on ingredients for cookies she's making for the school bake sale. How many cookies must she sell at $0.60 apie
    7·1 answer
  • X + 2y = 7<br>x - y = 1<br><br>Solve for x and y?​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!