Answer: 4r = 4
Step-by-step explanation:
Ruth bought 4 rulers and each ruler is to be represented by r. She therefore bought:
= 4r
She bought these for a total of $4.00 so the equation then becomes:
4r = 4.00
Equation representing situation is: 4r = 4
Step-by-step explanation:
) y2 = 4x
differenting both side with respect to x
dy²/dx=d4x/dx
2y dy/dx=4
dy/dx=4/2y=2/y
-1/4(8+12)-(-2+5)=
-1/4•20-3=
-5-3=
-8
For this case we must add the terms of the following expression:
It is noted that the terms are similar, so we can add:
We take common factor 
We add the terms within the parenthesis:
finally we have:
Answer:
Answer:
y
=
−
4
x
+
3
Step-by-step explanation:
