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love history [14]
3 years ago
10

Please help me !! Answer both correctly for a brainliest and also a thanks :)

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0
The firs t res is x=4
the second is D
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What types of solutions does 6x^2 - 20x + 1 have?​
elena55 [62]

Answer:

2 real solutions

Step-by-step explanation:

We can use the determinant, which says that for a quadratic of the form ax² + bx + c, we can determine what kind of solutions it has by looking at the determinant of the form:

b² - 4ac

If b² - 4ac > 0, then there are 2 real solutions. If b² - 4ac = 0, then there is 1 real solution. If b² - 4ac < 0, then there are 2 imaginary solutions.

Here, a = 6, b = -20, and c = 1. So, plug these into the determinant formula:

b² - 4ac

(-20)² - 4 * 6 * 1 = 400 - 24 = 376

Since 376 is clearly greater than 0, we know this quadratic has 2 real solutions.

<em>~ an aesthetics lover</em>

3 0
2 years ago
Help me please .......​
snow_tiger [21]

Answer:

75%

Step-by-step explanation:

only interested in juniors

male               2

female            6

there are only 8 juniors and 6 of those are female

6/8 or 75%

5 0
3 years ago
Write -7.32 as a Fraction/Mixed Number In Simplest Form. Also Show Steps To How You Got To Your Answer.
Mamont248 [21]

To write 7.32 as a fraction you have to write 7.32 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

7.32 = 7.32/1 = 73.2/10 = 732/100

And finally we have:  

7.32 as a fraction equals 732/100

7 0
3 years ago
Alex says that the function f(x) = (3x)2 represents a vertical stretch of the quadratic parent function by a factor of 3. Marta
gavmur [86]

Our parent function is f(x)=x^2. A vertical stretch by a factor of k means that every point (x,f(x)), has been transformed into (x,kf(x)). Alex is clearly incorrect as our parent function has been transformed to (x,9f(x)), not (x,3f(x)). A horizontal stretch(or compression) by a factor of k means our function has been transformed to (x/k,f(x)). Here, Marta is saying our function should look like (3x,f(x)). This can also be achieved by plugging 3x into the parent function, which would give us f(3x)=(3x)^2, so it seems that Marta is the correct one.

6 0
3 years ago
Number 5 and 6 please? ​
GuDViN [60]

Answer:

5. Profit of Rs 1 per lemon

6. Rs 20

Step-by-step explanation:

5. Buy Rs 60 per 12 lemons = Rs 5 per lemon

Sell Rs 30 per 5 lemons = Rs 6 per lemon

Profit Rs 1 per lemon

6. Sell Rs 2500 per 100 pens = Rs 25 per pen

Profit per pen is 20% = (20/100)25 = 5

Cost price of a pen = 25 - 5 = 20

6 0
2 years ago
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