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pashok25 [27]
3 years ago
6

If discriminant (b^2 -4ac>0) how many real solutions

Mathematics
1 answer:
MaRussiya [10]3 years ago
4 0

Answer:

If Discriminant,b^{2} -4ac >0

Then it has Two Real Solutions.

Step-by-step explanation:

To Find:

If discriminant (b^2 -4ac>0) how many real solutions

Solution:

Consider a Quadratic Equation in General Form as

ax^{2} +bx+c=0

then,

b^{2} -4ac is called as Discriminant.

So,

If Discriminant,b^{2} -4ac >0

Then it has Two Real Solutions.

If Discriminant,b^{2} -4ac < 0

Then it has Two Imaginary Solutions.

If Discriminant,b^{2} -4ac=0

Then it has Two Equal and Real Solutions.

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Please help I got 20mins​
Llana [10]

Answer/Step-by-step explanation:

Scale factor: 1/4

<em>AC = DF  and 10 ÷ 2.5 = 4</em>

<em>10 x 1/4 = 2.5</em>

<em />

DE length: 5

<em>AB = DE </em>

<em>20 x 1/4 = 5</em>

<em />

BC length: 30

<em>EF = BC</em>

<em>(Because EF is the dilation) 7.5 x 4 = 30</em>

8 0
3 years ago
What is 1 6/10-2 7/10​
skad [1K]

Answer:

-11/10 or -1 1/10

Step-by-step explanation:

Change to improper fractions format

1 6/10 becomes 16/10

2 7/10 becomes 27/10

16/10 - 27/10 = -11/10

-11/10 is also written -1 1/10

3 0
3 years ago
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The probability of Shirley getting an A in math is 0.65, and the probability of her getting an A in science is 0.62. What is the
allsm [11]

Answer:

.403

Step-by-step explanation:

We want the total probability of both events happening. These are independent events, so we have to multiply them together.

.65 * .62 = .403 chance of her getting an A in both courses

4 0
3 years ago
II. Solve the problems involving variations. Show your complete solution. (3 points each) 1. If y varies directly as the square
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Answer:

see explanation

Step-by-step explanation:

(1)

y varies directly as x² then the equation relating them is

y = kx² ← k is the constant of variation

To find k use the condition y = 32 when x = 2

32 = k × 2² = 4k ( divide both sides by 4 )

8 = k

y = 8x² ← equation of variation

When x = 5 , then

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(2)

Given F varies inversely as d² then the equation relating them is

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1800 = k

F = \frac{1800}{d^2} ← equation of variation

When d = 15 , then

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y = kxz ← k is the constant of variation

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2 years ago
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