Answer:
The standard form of 
is -2 x + 3 y = 21.
Step-by-step explanation:
Here, the given expression is : y= 2/3 x +7
The standard form of the equation is ax + by = c
Now, simplifying the above expression:
or, 
or, -2x + 3y = 21
Hence, the standard form of is -2x + 3y = 21.
m∡A = 70º
1) Considering that the Sum of the interior angles within a triangle is always 180º
2) We can write the following, and solve for x
x+80 + x +80 +40 = 180
2x +160 +40 = 180
2x + 200 = 180
2x =180-200
2x= -20
x=-10
3) So since angle A = x +80, we can plug it into that the value of x
m∡A = x +80º
m∡A=-10+80
m∡A = 70º
Answer:
9√xy^2
Step-by-step explanation:
according to the rule of law of indices, 3√xy=xy^(1/3) like this 9√xy^2 is the correct answer
