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3 years ago

Select the two values of x that are roots of this equation. 2x-5=-3x2

Mathematics

1 answer:

anygoal [31]3 years ago

4 0

Answer:

Step-by-step explanation:

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Ok fr I need to stop ima get banned lol <br><br><br> last one yallll

Stells [14]

Answer:

that looks nice.........

3 0

3 years ago

Read 2 more answers

Consider the multivariable function f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}f ( x , y , z ) = x 3 −

Lelu [443]

Answer:

$f\left(2,3,1\right)=\bold{14}$

Step-by-step explanation:

Given the function:

$f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}$

To find:

The value of $f(2, 3, 1)$ = ?

Solution:

$f(2, 3, 1)$ means the values of $x, y\ and\ z$ as:

$x=2\\y=3\\z=1$

Let us put the given values in the given function and let us solve for it:

$\Rightarrow f\left(2,3,1\right)=\dfrac{2^3-2.5\times 3^2+\frac{1}{2}}{1\left(2-3\right)}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{8-2.5\times 9+0.5}{1\left(-1\right)}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{8-22.5+0.5}{-1}\\\\\Rightarrow f\left(2,3,1\right)=\dfrac{-14}{-1}\\\\\Rightarrow f\left(2,3,1\right)=\bold{14}$

Therefore, the answer is:

$f\left(2,3,1\right)=\bold{14}$

8 0

3 years ago

What is the slope of the line that contains the points (4,3) and (2, 7)? A. - 5 B. 2 C. -2 O D. -5

Sindrei [870]

Answer:

C. -2

Step-by-step explanation:

hope that helps! :)

7 0

3 years ago

(MULTIPLE CHOICE QUESTION)

Dmitrij [34]

Answer:

I believe the last is does help while the rest don't help.

Step-by-step explanation:

The first only marks O and M

The second uses O and M and only finds 2 unrelated points.

The third uses O and M to find the other 3 points

6 0

3 years ago

Read 2 more answers

Else purchased a prepaid phone card for $15. Long distance calls cost 6 cents a minute using this card. Elsa used her card only

Ede4ka [16]

Answer:

25 minutes

Step-by-step explanation:

First you subtract the original amount on the card from the remaining amount left.

So you can get the amount of money spent on that call.

$15 - $13.50 = $1.50

Then you divide that number by how much it cost per minute.

$1.50 ÷ 6 = 0.25

Then you get your answer!

She was on the phone for 25 minutes

7 0

3 years ago