All categories

2 years ago

Helpp nowww i will give branliest

Mathematics

2 answers:

Romashka [77]2 years ago

6 0

Answer: Z

Step-by-step explanation: pls if im correct give me brainliest, if not correct give it to some one else

RUDIKE [14]2 years ago

4 0

Answer:

Step-by-step explanation:

Y axis is the line thats up and down

You might be interested in

If ben works for 12 hours, how much will he be paid?

Lelu [443]

Answer:

Mutiply this by whatever other value there is.

Step-by-step explanation:

5 0

2 years ago

5. Find the discriminant of 15x2 = 4x – 1 and describe

diamong [38]

Answer:

a) The discriminant of the equation = - 44

b)The nature of the roots will be imaginary.

c) $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

Step-by-step explanation:

Here, the given expression is $15x^{2} = 4x -1$

or, $15x^{2} - 4x + 1 = 0$

Now the discriminant (D) of a quadratic equation $ax^{2} +b x + c = 0$

D = $b^{2} - 4ac = (-4)^{2} - 4(15) (1) = 16 - (60) = -44$

Hence, the discriminant of the equation = - 44

As D< 0, so the roots will be imaginary.

Now,by quadratic formula : $x = \frac{-b \pm \sqrt{b^{2} - 4ac} }{2a}$

So, here $x = \frac{-(-4) \pm \sqrt{D} }{2a} = \frac{4 \pm \sqrt{(-44 )} }{30}$

So, either $x = \frac{4 + \sqrt{(-44 )} }{30} or, x = \frac{4 - \sqrt{(-44 )} }{30}$

or, $x = \frac{2 +\sqrt{11} i}{15} or, x = \frac{2 - \sqrt{11} i}{15}$

8 0

3 years ago

Which is equivalent to 4 square root 9^1/2^?

zzz [600]

I think this is it,please try and looking it up also for a better explanation

3 0

3 years ago

Please help on timerr

rewona [7]

the answer would be -6

3 0

2 years ago

Of the 22 students in the class, 16 of them are boys.

Eddi Din [679]

22 students...16 boys

probability student will be a boy is 16/22 which reduces to 8/11 or 72.7%

6 0

3 years ago