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Novosadov [1.4K]
4 years ago
15

Solve the inequality: x^2(x+2)(x-7) is greater than or equal to 0

Mathematics
1 answer:
const2013 [10]4 years ago
6 0

Answer:

greater

Step-by-step explanation:

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Quadratic formula, SOMEONE PLEASE HELP (30 points)
Anvisha [2.4K]
1. to create your own quadratic you have to just make up any numbers. so off the top of my head:
y = -5x^2 + 10x - 3

2. the equation to find the x value of the vertex uses is the equation -b/2a. You may notice that this is similar to the quadratic formula except for you take away the plus or minus square root part. if you think about it, it makes sense that this would be the vertex because the plus or minus parts are an equal distance away from the center of the parabola. so using the form ax^2 + bx + c we can plug in the a and b:
x = -10/2 (-5)
x = -10/-10
x = 1

so we have x and can plug into equation to get y value:
y = -5 (1)^2 + 10(1) -3
y= -10 + 10 - 3
y = -3

vertex is at point (1, -3)

3. the axis of symmetry is the line that runs straight up and down at the center of a parabola. the center of the parabola is the vertex so the line runs straight up and down through vertex. for a line to run straight up and down it is a constant x value. since the x of the vertex is 1, the line is:
x = 1

4. using quadratic formula :
x = [-b (+-) sqrt (b^2 - 4ac)]/2a
we get:
x = [-10 (+-) sqrt (10^2 - 4 (-5)(-3)]/2 (-5)
x = [-10 (+-) sqrt (100 - 60)]/-10
x= [-10 (+-) sqrt (40)]/-10
x= [-10 (+-) 2* sqrt (10)]/-10
x= [5 (+-) sqrt (10)]/5

that is the answer. You can use a calculator to solve easily.

5. the discriminant is the solution to what is under the squareroot sign. so the square root part was:
sqrt (b^2 - 4ac)

so discriminant is :
b^2 - 4ac

so for this function it is:
10^2 - 4 (-5)(-3)

solving this the discriminant is 40
6 0
4 years ago
8 in
noname [10]

Answer:

Option C) 50.24 inches

Step-by-step explanation:

We are given the following in the question:

Radius of circle = 8 inches

Circumference of circle =

=2\pi r

where r is the radius of the circle.

Putting all the values, we get,

C = 2\times 3.14\times 8\\C = 50.24\text{ inches}

Thus, the correct answer id

Option C) 50.24 inches

8 0
3 years ago
Chad created a table that shows the ratio of his sports game cards.
Svet_ta [14]

The true statement is on a coordinate plane, a graph titled Chad's Cards has Damage on the x-axis and Defense on the y-axis. Points (1, 2), (2, 4), (3, 6), and (4, 8) are plotted.

Chad created a table that shows the ratio of his sports game cards.

Chad’s Cards

Card Type

Outfield

Infield

Catcher

Pitchers

Quantity

3

4

1

2

Next, Chad created the graph below showing possible ratios for Pitcher cards to Infield cards in his deck.

<h3>What is the coordinate plane?</h3>

A coordinate plane is a graphing and description system for points and lines. A vertical (y) axis and a horizontal (x) axis make up the coordinate plane. There are four quadrants in the coordinate plane. The point where these lines connect is called the origin (0, 0).

Therefore the first statement is true,

On a coordinate plane, a graph titled Chad's Cards has Damage on the x-axis and Defense on the y-axis. Points (1, 2), (2, 4), (3, 6), and (4, 8) are plotted.

Therefore option A is correct.

To learn more about the graph visit:

brainly.com/question/4025726

#SPJ1

8 0
2 years ago
Read 2 more answers
Simplify (8j3 – 5j2 – 5) – (6j3 – 12j2 + 8j – 7)
muminat
(8j3 - 5j2 - 5) - (6j3 - 12j2 + 8j - 7) = 
(8j3 - 6j3) - (5j2 - 12j2) - 8j - (5-7) =
2j3 - (-7j2) - 8j - (-2) =
2j3 + 7j2 - 8j + 2

The correct answer is D. 2j3 + 7j2 - 8j + 2
8 0
3 years ago
Which angle is an adjacent interior angle?<br><br><br><br>1<br><br>2<br><br>3<br><br>4
dolphi86 [110]

Answer: 3

Step-by-step explanation:

Porque 3 y 4 forman un ángulo adyacente, pero solo el 3 es interior (porque está adentro, obvio)

3 0
3 years ago
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