The surface area S , of a right rectangular prism with length l , width w ,and height h can be found using the formula below

1 answer:

3 0

First, replace all variables with the given values.
12(9) + 9(2) + 2(12)
This should then equal 150, then the formula says to multiply this answer by 2. Doing so, should give a final answer of 300.

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F(x)=25x^2-10x+1 what is the the value of the discriminant of f

Elanso [62]

Answer:

Step-by-step explanation:

Quadratic equation

$x=\frac{-b+-\sqrt{b^{2}-4*a*c} }{2*a}$

The discriminant is the part of the quadratic formula within the square root symbol: ${b^{2}-4*a*c}$ . The discriminant indicates if there are two solutions, one solution, or none.

The discriminant can be positive, zero or negative which determines how roots exist for the given quadratic equation.

So, a positive discriminant tell us that the quadratic has two different real solutions.

A discriminant of zero tell us that the quadratic has two real and equal solutions.

And a negative discriminant tell us that none of the solutions are real numbers.

In this case: 25x^2-10x+1=0

We can see that

a= 25 b=-10 c=1

Using: ${b^{2}-4*a*c}$

We have $-10^{2}-4* 25*1 =100-100=0$

the answer is zero, so the quadratic has two real and equal solutions

7 0

3 years ago

A cone has a base radius of 7 centimeters and a height of 21 centimeters.

Arada [10]

V = (1/3) x πr² x h = cm³

7 0

2 years ago

12. 8+ 6^2_11 + 7 x 2

Rudiy27

Answer:

$\frac{8 + {6}^{2} }{11} + 7 \times 2 \\ \\ \frac{8 + 6 \times 6}{11} + 7 \times 2 \\ \\ = \frac{8 + 36}{11} + 7 \times 2 \\ \\ = \frac{44}{11} + 7 \times 2 \\ \\ = 4 + 14 \\ \\ = 18$