03-06-2016
Mathematics

contestada

Use the discriminant to find the number of real roots in Y = x^2 – 6x + 9

Respuesta :

whiskeyo whiskeyo

03-06-2016

So discriminant is being counted from that equation:
b^2-4ac = 36-36 = 0

As discriminant is 0, then there is just 1 root -> -b/2a = 6/2 = 3.

Answer Link

Otras preguntas

If y^8= 4 and y^7=3/x, what is the value of y in terms of x?

How do enzymes help to carry out biochemical reactions? A. By decreasing the energy of the reactants B. By increasing the activation energy of the reaction C. B

In the formula e = hf, if e is doubled and f is halved, what happens to the value of h?

A biome that contains a layer of permanently frozen soil, called permafrost, would be classified as A. taiga B. desert C. tundra D. savannah E. temperate decidu

Which cells undergo cell division? a. prokaryotic cells only b. eukaryotic cells only c. cancer cells only d. both prokaryotic and eukaryotic cells

how do you figure out what is 1/4 of 10.

A boy can swim 75 feet in 12 seconds. What is his rate to the nearest mile per hour?

The sales tax rate is 8%. Estimate the tax on a jacket that costs $69.95.

If y^8= 4 and y^7=3/x, what is the value of y in terms of x?

An object of mass 2 kg has a linear momentum of magnitude 6 kg • m/s. What is this object’s kinetic energy?