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Julli [10]
2 years ago
11

Use the discriminant to determine the number of solutions and types of solutions for the quadratic equation, below. Show your wo

rk when calculating the discriminant for full credit. Then answer all four questions in the box. (6 points)
a^2-5a=6
Mathematics
1 answer:
maria [59]2 years ago
7 0

Answer:

6

Step-by-step explanation:

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A function is given: f (x) = 2x + 3<br> What is the value of f(-2)?
Nadusha1986 [10]

Answer:

f(-2) = -1

Step-by-step explanation:

-2 is x, so replace x as -2 into the equation

f (-2) = 2(-2) + 3

f (-2) = -4 + 3

f (-2) = -1

5 0
3 years ago
The molar mass of AlCl3 is 133.34 g/mol. How many molecules of AlCl3 are there in 2 g?
Mnenie [13.5K]

To solve this problem, we have to apply mole-concept to this and we would need the molar mass of AlCl3.  2g of AlCl3 contains 9.034*10^21 molecules.

<h3>Number of Molecules in 2g of AlCl3</h3>

The molar mass of AlCl3 is given as 133.34g/mol

Data;

  • mass = 2g
  • molar mass = 133.34g/mol

Using the mole concept, we can equate the molar mass to the number of molecules present in the entity.

133.34g = 6.023*10^2^3

If we equate this

133.34g = 6.023*10^2^3\\2g = x molecules\\x = \frac{2*6.023*10^2^3}{133.34} \\x = 9.034*10^2^1 molecules

From the calculations above, 2g of AlCl3 contains 9.034*10^21 molecules.

Learn more on mole concept here;

brainly.com/question/21150359

#SPJ1

5 0
1 year ago
9x+63=100 please answer my question
valina [46]

Answer:

x=3

Step-by-step explanation:

9x+63=100

9x+0=27

9(3)=27

8 0
3 years ago
Please help<br> Complete the equation describing how<br> x and y are related.
djverab [1.8K]

Answer:

y = 5x + 3

Step-by-step explanation:

The answer that belongs in the ? is 5.

4 0
2 years ago
Tools
const2013 [10]

Answer:just do the math mate

Step-by-step explanation:

6 0
3 years ago
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