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3 years ago

Which choice is equivalent to the expression below when y 0?

1 answer:

6 0

$y\sqrt{y}+\sqrt{9y^3}-3y\sqrt{y}=y\sqrt{y}+\sqrt9\cdot\sqrt{y^2\cdot y}-3y\sqrt{y}\\\\=y\sqrt{y}+3y\sqrt{y}-3y\sqrt{y}=y\sqrt{y}\\\\Answer:C.$

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Write any two quadratic equations.

Thepotemich [5.8K]

To find:

Any two quadratic equations.

Solution:

The general form of a quadratic equation is:

$ax^2+bx+c=0$

Where, a,b and c are real number and a is non zero.

We know that a,b,c can take any values but a cannot be 0.

For a=1, b=1,c=1, we get

$1x^2+1x+1=0$

$x^2+x+1=0$

One quadratic equation is $x^2+x+1=0$ .

For a=3,b=-1,c=5, we get

$3x^2+(-1)x+5=0$

$3x^2-x+5=0$

Therefore, the two quadratic equations are $x^2+x+1=0$ and $3x^2-x+5=0$ .

3 0

3 years ago

30 points who gets em?? I need help with math, the screenshot is below.

malfutka [58]

Answer:

...none of them are correct, but if i had to choose, it'd be A.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

At the grand opening of a movie theater, every 12th customer received a free bag of popcorn and every 30th customer received a f

AlexFokin [52]

Answer:

Your answer would be the 60th

Step-by-step explanation:

This is your solution due to the fact that when you find the multiples of 12 and 30 you will realize that that's the first number they meet at, let me show you.

Multiples of 12 - 12, 24, 36, 48, 60

Multiples of 30 - 30, 60, 90, 120, 150

So The Least Common Denominator is 60!

Thus that is how I know that the 60th customer at the movie theater would get both items for free.

Hope This Helped!

6 0

3 years ago

In a 3-digit number, the middle digit is 3 times the last digit and 4 more than the first digit. All the digits are odd and can

Alexeev081 [22]

Answer:

Step-by-step explanation:

This is quite some trial and error question.

Based on the question, the numbers we can use are 1,3,5,7 and 9.

We will start with the middle digit first.

Since the question has stated it is 3 times the last digit, the number has to be in multiples of 3.

So we are left with: 3 and 9.

Then, the question also states the middle digit is 4 more than the first digit. See, its a digit, so the value cannot be less than 1 (odd numbers only and no negative values), so if we subtract 4 to the middle digit to find the first, it should still be a Positive Single numerical value.

3 - 4 = -1

9 - 4 = 5

Therefore, this middle digit is = 9.

Since we know the middle digit = 9

The first digit will be 9 - 4 = 5

The whole value is now 593.

4 0

3 years ago

Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)= 0

weqwewe [10]

Answer:

Step-by-step explanation:

i don't know sorry.......................

5 0

3 years ago