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Rashid [163]
3 years ago
6

A quadratic equation has exactly one real number solution.Which is the value of its discriminant ?-1,0,1 or 2

Mathematics
1 answer:
Ivanshal [37]3 years ago
4 0

Answer:

The value of the discriminant is 0

Step-by-step explanation:

The discriminant of a quadratic equation is calculated as thus:

b² - 4ac and it is represented by letter D.

Hence, D = b² - 4ac..

This discriminant can take either of 3 range of values.

1. D > 0. This implies that the discriminant has a value greater than 0 and this means that the root has 2 different real solutions

2. D = 0. This implies that the discriminant equals 0 and this means that the root has only 1 solution.

3. D < 0. This implies that the discriminant is less than 0 and this means that the root has 2 different complex solutions.

Hence, D = 0 is the correct answer to this question.

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What is 1 + 1<br> In other words 2-1<br> Or also known as 1•1
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Answer:

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Step-by-step explanation:

7 0
3 years ago
Evaluate the expression if x= -3 and y= -2 3xy+5= (answer simplified)
stiks02 [169]
3xy + 5
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3 years ago
Suppose that circles R and S have a central angle measuring 80°. Additionally, the measure of the sector for circle R is
riadik2000 [5.3K]
The correct answer is B) 9 m.

The measure of the sector of circle R is 32π/9 m.  The measure of the central angle is 80°.  This means that the sector is 80/360 = 2/9 of the circle.  The area of a circle is given by A=πr², so the area of the sector is A=2/9πr².  To verify this, 2/9π(4²) = 2/9π(16) = 32π/9.

Using this same formula for circle S, we will work backward to find the radius:

18π = 2/9πr²

Multiply both sides by 9:
18*9π = 2πr²
162π = 2πr²

Divide both sides by 2π:
162π/2π = 2πr²/2π
81 = r²

Take the square root of both sides:
√81 = √r² 
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6 0
4 years ago
Read 2 more answers
Decimal modle 0.5×1.7
NikAS [45]

You mean the product of 0.5 and 1.7 which is 0.85.

8 0
4 years ago
ALGEBRA 1, SEM. 2
grigory [225]
2•(1/4)^(2-1)= 2•(1/4)= 1/2
2•(1/4)^(3-1)= 2• (1/4)^2 = 2•1/16=1/8
3 0
4 years ago
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