MATHEMATICS HIGH SCHOOL

Help if your good at maths

Answers

Answer 1

Answer:

Answer:

$(1)/(p-s)$

Step-by-step explanation:

$(p+s)(p^2-s^2)^(-1)$

$(p+s)(1)/((p^2-s^2))$

$(p+s)/(p^2-s^2)$

$(p+s)/((p+s)(p-s))$

$(1)/(p-s)$

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What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.

There is a tournament in table tennis (ping-pong) in which 8 players take place.These are the rules of the tournament:
1 ) Each player plays with every other only 1 game.
2 ) If in the i-th round there is a game between A and B, and a game between C and D, and in the i+1-th round there is a game between A and C, then in the i+1-th there must be a game between B and D.
On how many different ways can we make a schedule for all rounds if it's not important which player plays on which table?

Answers

so 1 player playes 2345678 2 plays 345678 3 plays 45678 4 plays 5678 5 plays 678 7 plays 8 add those up and there is 26 total possible games and 13 rounds.

-6x+11 = 7-10x show all work

Answers

Answer:

Step-by-step explanation:

collect like terms ( when a negative sign crosses the equality sign it becomes positive and vice versa)

-6x + 10x=7-11

4x=-4

divide both sides by the coefficient of x

4x/4=-4/4

x=-1

Easy

-6x + 11 = 7 - 10x
Substract 11 from both sides=
-6x = -4 - 10x
Add 10x to both sides
4x = 4
Now divide both sides by the same factor
Answer is x = -1

What does the number theory prove?

Answers

Number theory is the study of integers and natural numbers. I don't think it proves anything, but it helps with algebra.

it does not prove anything it just is what is learned in algebra because you are going to know more about it in geometry.

A man invests a certain amount of money at 2% interest and $800 more than that amount in another account at 4% interest. At the end of one year, he earned $92 in interest. How much money was invested in each account?A) $1,500 at 2%; $2,300 at 4%
B) $1,400 at 2%; $2,200 at 4%
C) $1,000 at 2%; $1,800 at 4%

Answers

Answer: Option 'C' is correct.

Step-by-step explanation:

Since we have given that

Let the principal amount be 'x'.

First rate of interest = 2%

Second rate of interest = 4%

Number of years = 1

Amount of interest he earned = $92

According to question,

$(x* 2)/(100)+((x+800)* 4)/(100)=92\n\n(2)/(100)(x+2(x+800))=92\n\nx+2x+1600=(92* 100)/(2)\n\n3x+1600=4600\n\n3x=4600-1600\n\n3x=3000\n\nx=(3000)/(x)\n\nx=\$1000$

So, First investment of $1000 at 2% and Second investment of $1000+$800=$1800 at 4%.

Hence, Option 'C' is correct.

x the first account interest = x/100*2 = 2x/100
(x + 800)/100 * 4 =( 4x + 3200)/100
2x/100 + (4x + 3200)/100 = 92
2x + 4x + 3200 = 9200
6x = 6000
x = 1000
C is the answer

Find the slope of the line y = 9/10x + 3/10

Answers

Answer:

Step-by-step explanation:

To find the slope of the line, we can look at the coefficient of x in the equation. In this case, the coefficient of x is 9/10. Therefore, the slope of the line is 9/10.

Answer what you can pleases