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Effectus [21]
3 years ago
12

Will mark the brain

Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

ummm c

Step-by-step explanation:

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PLEASE ANSWER THIS: look at the pic for question. Thanks!!!
Nadya [2.5K]

Answer:

\text{D. }b^2-4ac>0

Step-by-step explanation:

The equation b^2-4ac represents the discriminant of a quadratic. It is the part taken from under the radical in the quadratic formula.

For any quadratic:

  • If the discriminant is positive, or greater than 0, the quadratic has two solutions
  • If the discriminant is equal to 0, the quadratic has one distinct real solution (the solution is repeated).
  • If the discriminant is negative, or less than 0, the quadratic has zero solutions

In the graph, we see that the equation intersects the x-axis at two distinct points. Therefore, the quadratic has two solutions and the discriminant must be positive. Thus, we have b^2-4ac>0.

4 0
3 years ago
Eden just bought a trough in the shape of a rectangular prism for her horses. She needs to know what volume of water to add to t
notsponge [240]

The volume of the trough is V(w) = w³ + 20w² - 429w and the rate of change of the volume over a width of 38 inches to 53 inches is 4695 in³/in

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let w represent the width, hence:

length = w + 33, height = w - 13

Volume (V) = w(w + 33)(w - 13) = w³ + 20w² - 429w

V(w) = w³ + 20w² - 429w

Rate of change = dV/dw = 3w² + 40w - 429

When w = 38, dV/dw = 3(38)² + 40(38) - 429 = 5423

When w = 53, dV/dw = 3(53)² + 40(53) - 429 = 10118

Rate = 10118 - 5423 = 4695 in³/in

The volume of the trough is V(w) = w³ + 20w² - 429w and the rate of change of the volume over a width of 38 inches to 53 inches is 4695 in³/in

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0
2 years ago
The ordered pairs represent a function.
Goryan [66]
(0,-1)(1,0)(2,3)(3,8)(4,15)
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3 years ago
When graphing the inequality y &gt; 3x + 4, you will use a solid line iristead of a dotted line-
Alexus [3.1K]

Answer:

true

Step-by-step explanation:

7 0
3 years ago
Two angles are complementary. The first angle is 2x degrees. The second angle is (x+30) degrees. Determine the larger angle
Molodets [167]
Second angle is (x+30) value is 1718.873385
7 0
3 years ago
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