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Wewaii [24]
3 years ago
13

How many real solutions does a quadratic equation have if it's discrimination is zero

Mathematics
2 answers:
VMariaS [17]3 years ago
7 0
 , there can be 0 , 1 , or 2 solutions<span> to a quadratic equation, depending on whether the expression inside the square root sign, (b </span>2<span> - 4ac) , is positive, negative, or zero</span>
slava [35]3 years ago
5 0
Here is an easy way to remember, If the discriminant is equal to zero there will be one solution, if the discriminant is less than 0 or negative there are no real solutions, more than 0 or positive there will be two. So one real solution if it is equal 
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All four sided polygons are quadrilaterals
Sati [7]
This is a true statement (:
3 0
3 years ago
x varies jointly with the square of y and z. when y=6 and z=5, x=100. Then, what is x when y=8 and z=2?
djyliett [7]
X = k*y^2 * z
100 = 6^2*5*k,
k=0.555
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Hope that helps!
8 0
3 years ago
A​ single, six-sided die is rolled. Find the probability of rolling an even number or a number less than 5.
Svetach [21]

The probability of rolling an odd number or a number less than 5 is 5/6.

Probability is the likelihood of the occurrence of an event. It is the ratio of number of events to number of possible outcomes.

The possible outcome from rolling a six-sided die is 1, 2, 3, 4, 5 and 6

P(odd number) = 3/6; P(less than 5) = 4/6; P(odd number and less than 5) = 2/6

Hence:

P(odd number or less than 5) = 3/6 + 4/6 - 2/6 = 5/6

The probability of rolling an odd number or a number less than 5 is 5/6.

8 0
1 year ago
Is the graph increasing, decreasing, or constant where -3 &lt; X &lt;-1?
Romashka [77]

Answer:

decreasing

Step-by-step explanation:

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8 0
3 years ago
What is the correct way to write 9 x 9 x 9 in exponential form?
Harlamova29_29 [7]

Hey!

----------------------------------------------

Solution:

Put all the answer choices into expanded form.

3^9 = 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3

1^8 = 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1

9^3 = 9 x 9 x 9

8^1 = 8

----------------------------------------------

Answer:

We can see that the only way to write to write 9 x 9 x 9 in exponential form is c) 9^3

----------------------------------------------

Hope This Helped! Good Luck!

5 0
3 years ago
Read 2 more answers
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