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Irina-Kira [14]
4 years ago
5

If a quadratic equation only has one solution, it's discriminant is zero. True or False

Mathematics
1 answer:
bulgar [2K]4 years ago
7 0

Answer:

<h2>TRUE</h2>

Step-by-step explanation:

\text{The quadratic equation:}

ax^2+bx+c=0

\text{The discriminant:}

b^2-4ac

\text{If}\ b^2-4ac0\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

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What is the characteristic of a Matrix Null:
Kryger [21]

The characteristic of a Null Matrix is :

A)All elements are = 0

C)First row = 0

D)First Column = 0

<u>Step-by-step explanation:</u>

Here we have , to tell which of the following are the characteristic of the null matrix  :

Null Matrix : A null matrix is a matrix whose every element is zero ! for Example - \left[\begin{array}{ccc}0&0&0\\0&0&0\\0&0&0\end{array}\right] is a 3×3 matrix , i.e. 3 rows & 3 columns .

A)All elements are = 0

Yes, All elements of a Null matrix are equal to 0 .

B)All elements are negative

No , not even a single matrix entry is negative .

C)First row = 0

Yes, First row is equal to zero!

D)First Column = 0

Yes, First column is equal to zero!

3 0
3 years ago
You have found a home that you are interested in purchasing. Instead of a conventional loan, you agree to pay the premium for th
hodyreva [135]

Answer:

a.

$6,250

Step-by-step explanation:

Finances 95% of the loan.

So you have to pay 100% - 95% = 5% of the loan.

The amount of the home is listed at $125,000.

You have to pay 5% of this. So

0.05*125000 = $6,250

The answer is given by option A.

5 0
3 years ago
Here is a list of ages (years) of children in a room <br><br> 8,7,5,4,7,7,2<br><br> State the median
Lina20 [59]

Answer:7

Step-by-step explanation:

To find the median you need to first put the number in order from least to greatest this would be 2, 4 ,5, 7, 7, 7, 8

next you have to find the number in the middle

That is your median, 7 is your median.

6 0
3 years ago
ANOTHER QUESTION:
iris [78.8K]
If there are 3 red blocks for every 5 blocks
if we multiple both numbers by 12 to make every 60 blocks we get:
36 red blocks every 60 blocks
since you have 36 and you only need 32 then yes you will have enough
5 0
3 years ago
During the basketball season,Josh pitched to 270 batters. he struck out 70% how many batters did he strike out
never [62]
Josh struck out 189 batters.
3 0
3 years ago
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