If the equation;
(3x)² + {27 × (3)^1/k - 15}x + 4 = 0
has equal roots find k

Step-by-step explanation:

Given quadratic equation is

can be rewritten as

Concept Used :-

Nature of roots :-

Let us consider a quadratic equation ax² + bx + c = 0, then nature of roots of quadratic equation depends upon Discriminant (D) of the quadratic equation.

If Discriminant, D > 0, then roots of the equation are real and unequal.

If Discriminant, D = 0, then roots of the equation are real and equal.

If Discriminant, D < 0, then roots of the equation are unreal or complex or imaginary.

Where,

Discriminant, D = b² - 4ac

Let's Solve this problem now!!!

On comparing with quadratic equation ax² + bx + c = 0, we get

Since, Discriminant, D = 0

Case - 1

So, option (b) is Correct.

Case - 2

which is not possible.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

5.25 ounces

step-by-step explanation:

divided 3/4 and 6