MATHEMATICS HIGH SCHOOL

Someone reported my question, I'm sorry Batman.
why does y=mx+b ?

Answers

Answer 1
Answer:

Answer:

The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y. The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept

Step-by-step explanation:

lol thx for the points

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What is the measure of each exterior angle of a decagon?

Answers

The sum of all of the exterior angles of any regular polygon is 360  (I'm assuming by decagon you mean a regular dodecagon).

Because the total has to be 360, and a decagon has 10 sides, you divide 360 by 10 to get each exterior angle.

360 ÷ 10 = 36, so each exterior angle of a decagon is 36 degrees.

I have no idea how to do anyone can help?

Answers

Hello,

Meredith has k toys and Gazali too

Meridith gives 20/100 * k
Gazali gives 85/100*k
So they gives 105/100 * k toys which is 126

105/100 *k=126
k=126*100 /105
They have left alltogether  80/100 * k + 15/100 *k= 95/100 *k

95/100*k=95/100* 126*100/105=114 (toys left).

Solve the equation by taking the square root 4(x+1)^2=100

Answers

Answer:

Step-by-step explanation:

4(x+1)²=100

(x+1)²= 5²

(x+1)²- 5² = 0

(x+1-5)(x+1+5) = 0  by identity : a² - b ² = (a - b) (a+b)

(x - 4 ) (x+6) =0

x - 4 = 0 or x+6 = 0

x = 4  or x = - 6

7. 2.1 + 3.32 – 1.4 = ?

Answers

Hi there! :) The answer to your question is 4.02. I did 2.1+3.32= 5.42 then I did 5.42-1.4= 4.02. That I how I got the answer.

Hope I helped! ;D
4.02, first you add together 2.1 and 3.32, then once you get that answer (5.43); you subtract 1.4. Remember that when adding and subtracting to always go left to right.

What equation can I use to find the side of a cube whose area is 729?

Answers

#1 There is no area of a cube. There is only a volume.
#2 The formula is V = s^(3) where s is the side.

Substitute 729 in V since that is the volume.
729 = s^(3)

Take the cube root and you will get 9.

So the formula is V = s^(3) and the side is 9. 

Log8(2-5x)=log8(-4x+3)

Answers

2 - 5x > 0 and -4x + 3> 0

log8(2-5x)=log8(-4x+3) <=> 2 - 5x = - 4x + 3 <=> -5x + 4x = 3 - 2 <=> -x = 1 <=> x = -1;

2 - 5(-1) = 7 > 0 and -4(-1) + 3 = 7 > 0 ;

the solution is -1;
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