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Inessa05 [86]
3 years ago
14

Answer quick for brainliest

Mathematics
2 answers:
Verizon [17]3 years ago
7 0

Answer:

y=-2x+4

Step-by-step explanation:

Hello there!

Using y=mx+b, -2 is the slope and 4 is the y-intercept.

;)

nikklg [1K]3 years ago
6 0

Answer:

y = -2x + 4

Step-by-step explanation:

Looking at the graph, we can find the y-intercept by seeing where 0 meets with the y axis. That means our y-intercept is 4. To find the slope we can pick two coordinates from the graph and use the slope formula. Rise/Run

Let's pick the coordinates: (1,2) and (2,0).

Plug it in:

0 - 2 / 2 - 1 = m

0 -2 / 2 - 1 = -2/1

-2/1 = -2

m = -2

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Arte-miy333 [17]

Answer:

47.5 is correct

Step-by-step explanation:

use the Pythagorus theorem

31^2+36^2= BA^2

2257=BA^2

square root both sides

√2257= 47.50789408

round to the nearest tenth

47.5

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Read 2 more answers
Solving multi step equations
hichkok12 [17]

The no-brain way to do it is to

  1. subtract one side from both sides so you have <em>(something) = 0</em>.
  2. divide by the coefficient of the variable.
  3. add the opposite of the constant.

Of course, at some point, you need to simplify the equation so you have something like

... ax + b = 0 . . . . . . where <em>a</em> and <em>b</em> are some constants that may be positive or negative

17) Subtract the right side.

... 10(x +3) -(-9x -4) -(x -5 +3) = 0

... 10x + 30 +9x +4 -x +5 -3 = 0 . . . . . eliminate parentheses

... x(10+9-1) +(30+4+5-3) = 0 . . . . . . . collect terms

... 18x +36 = 0 . . . . . . . . . . . . . . . . . . . simplified

... x + 2 = 0 . . . . . . . . . . . . . . . . . . . . . .divide by 18, the coefficient of x

... x = -2 . . . . . . . . . . . . . . . . . . . . . . . . add the opposite of the constant

19) Add the opposite of the left side.

... 0 = -9(1 +7x) +12(x -12)

... 0 = -9 -63x +12x -144 . . . . . . eliminate parenthses

... 0 = -51x -153 . . . . . . . . . . . . . simplify

... 0 = x +3 . . . . . . . . . . . . . . . . . divide by -51, the coefficient of x

... -3 = x . . . . . . . . . . . . . . . . . . . add the opposite of the constant

_____

If you examine the variable's coefficients you can make a choice of side to subtract that results in a positive coefficient of the variable.

This method puts variable and constant together until the end. The approach usually taught is to separate the variable terms and constant terms. (The number of steps required is the same either way.)

The reason this is "no brain" is that it always works and requires no judgment as to what you add or subtract from where. Applying a little judgment as described above can make it so you're mostly working with positive numbers, but the method works whether the numbers are positive or negative.

6 0
3 years ago
Derrick earned $1472during the 4 weeks he had his summer job.if he earned the same amount each week,how much did he earn each we
valkas [14]
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$1472 divided by 4 = $368 per week or $52.57 a day 
hope this helps!!
8 0
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