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Mama L [17]
4 years ago
12

Help please!a= 2 b= -4c= -3d= 5help and explain how to do it pleaseee

Mathematics
1 answer:
slava [35]4 years ago
5 0
(2+-4)--3
(2-4)+3
(-2)+3
1

(-4-2)+-3
(-6)-3
-9
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Answer: y=3x^2−3x

Step-by-step explanation:

Sorry if wrong

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4 years ago
1 kilometre is how much miles​
algol [13]

Answer:

1 kilometre is 0.621 mile

7 0
3 years ago
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(04.02 MC)
lesya [120]

Answer:

The equation in standard form is:

Rx+Py = -PR

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Given

The y-intercept (0, -R)

The x-intercept (−P, 0)

Finding the slope between (0, -R) and  (−P, 0)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(0,\:-R\right),\:\left(x_2,\:y_2\right)=\left(-P,\:0\right)

m=\frac{0-\left(-R\right)}{-P-0}

m=-\frac{R}{P}

Thus, the slope between (0, -R) and  (−P, 0) is:

m=-\frac{R}{P}

We know that the value of the y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

We are given the y-intercept point (0, −R).

Thus, y-intercept b = -R

so substituting b = -R and m=-\frac{R}{P} in the slope-intercept form to determine the line of the equation

y = mx+b

y=-\frac{R}{P}x\:+\:\left(-R\right)

y=-\frac{R}{P}x\:-R

So, the slope-intercept form of the line equation is:

y=-\frac{R}{P}x\:-R

Converting the slope-intercept form of the line equation into standard form

As we know that the equation in the standard form is

Ax+By=C

where x and y are variables and A, B and C are constants

As

y=-\frac{R}{P}x\:-R

so converting into standard form

Multiply the equation by P

Py = -Rx - PR

Add -Rx to both sides

Rx+Py = -Rx - PR + -Rx

Rx+Py = -PR

Therefore, the equation in standard form is:

Rx+Py = -PR

5 0
3 years ago
When 5 is added to a set of 3 numbers the mean increases to 4.6. What was the mean of the original 3 numbers?
SVEN [57.7K]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷  Multiply 4.6 by 4 to get the sum of the numbers after 5 was added:

4.6 x 4 = 18.4

^ This is the new total

Subtract 5 from this:

18.4 - 5 = 13.4

Divide this value by 3 to get the original mean:

13.4/3 = 67/15

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

7 0
4 years ago
What is 2 to the power of -2
natka813 [3]
Answer:
0.25
explanation:
6 0
3 years ago
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