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Masja [62]
2 years ago
8

Anderson uses the discriminant to correctly find the number of real solutions of the quadratic equation one-halfx2 + 4x + 8 = 0.

Which explanation could Anderson provide?
The equation has no real number solutions because the discriminant is 0.
The equation has one real number solution because the discriminant is 0.
The equation has no real number solutions because the discriminant is less than 0.
The equation has two real number solutions because the discriminant is greater than 0.
Mathematics
1 answer:
Trava [24]2 years ago
8 0

Answer:

The equation has one real number solution because the discriminant is 0.

Step-by-step explanation:

  • If the discriminant is less than 0, there are no real number solutions.
  • If the discriminant is equal to 0, there is one real number solution.
  • If the discriminant is greater than 0, there are two real number solutions.

<u>Formula:</u> D = b^{2} - 4ac

\frac{1}{2} x^{2}+4x+8=0

⇒ a = 1/2, b = 4, c = 8

⇒ D = 4*4 - 4*0.5*8 = 16 - 16 = 0

⇒ The equation has one real number solution because the discriminant is 0.

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JK=2x+5 and KL=3x-8 find JL
professor190 [17]

Answer:

Step-by-step explanation:

3x -8 = 2x + 5

x - 8 = 5

x = 13

3(13) - 8 + 2(13) + 5

39 - 8 + 26 + 5

31 + 31 = 62

4 0
3 years ago
What is the solution to y + 8.5 = 17.2? y = 25.7 y = -25.7 y = -8.7 y = 8.7
olya-2409 [2.1K]

Answer:

y =8.7

Step-by-step explanation:

y + 8.5 = 17.2

Subtract 8.5 from each side

y +8.5 -8.5 = 17.2 -8.5

y =8.7


8 0
3 years ago
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What is the function for the arithmetic sequence 2,7,12,17,22
Deffense [45]


The common difference, d, is 5 and the starting value, a, is 2.
Filling this in the form of x_n=a+d(n-1)

<span>you get

</span>x_n = 2+5(n-1)
3 0
3 years ago
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Find the volume of the figure. Round to the nearest
zaharov [31]
I’m not sure what the answer is but I hope someone helps you. Have a nice day‼️12
8 0
3 years ago
Just need help with #6
Anarel [89]

Answer:

Step-by-step explanation:

a) The rate of change is referred to as slope

Slope = change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

From the graph,

y2 = 160 = final value of y

y 1 = 260 = initial value of y

x2 = 10 = final value of x

x1 = 5 = initial value of x.

Slope = (160 - 260)/10 - 5)=-100/5

Slope = -20

b) initial height of the biker above the Canyon was 360 feets. It is reducing as the time is increasing.

c) it took the hiker 18 minutes to reach the Canyon floor.

d) After 9 minutes, the hiker was 180 feets above the Canyon floor

e) it took 7 minutes for the hiker to reach 220 feets above the Canyon floor.

f) The domain is the set of all possible values of the independent variable and the independent variable is time.

The time between which the hiker was at the maximum height and the minimum height lies between 18 minutes and 0 minutes.

The domain is 0 lesser than or equal to t lesser than or equal to 18.

The range is the set of all possible values of the dependent variable and the dependent variable is height of the hiker above the Canyon. The maximum height of the hiker was 360 feet and the minimum height of the hiker was 0 feet. Let the height be h.

The range is 0 lesser than or equal to h lesser than or equal to 360

3 0
3 years ago
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