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Nuetrik [128]
3 years ago
14

Kobe reported that the local

Mathematics
1 answer:
denis-greek [22]3 years ago
7 0

Answer:

27 temporary employees

Step-by-step explanation:

Given information: 30 employees, 90% temporary

To find the number of temporary employees we can do 30*90%=30*0.9=27 There are 27 temporary employees

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Help me for 40 points. Thank you very much
Lilit [14]

Answer:

answer is 11/16 plz give me brainlist

8 0
3 years ago
Can somebody help me with all three problems please
Lerok [7]

1. x^{2} -10x +25 = 0

These two numbers are: -5 and -5

-5 + (-5) = -10

-5 * -5 = 25

so...

(x - 5)(x - 5)

To find the roots set the factored numbers equal to zero and solve for x:

x - 5 = 0

x = 5

2. x^{2} + 9x = -14

This equation needs to be equal to zero, so bring -14 to the other side by adding 14 to both sides

x^{2}+9x+14 =0

Find two numbers that the sum is equal to 9 AND the multiplication of the numbers is 14

These numbers are 7 and 2

7 + 2 = 9

7*2 = 14

so...

(x + 2) (x + 7)

To find the roots set the each of the factored numbers equal to zero and solve for x:

x + 2 = 0

x = -2

x + 7 = 0

x = -7

3. 3x^{2} = 6x

This equation needs to be equal to zero, so bring 6x to the other side by subtracting 6x to both sides

3x^{2} -6x = 0

In this equation you can factor out a 3 and an x:

3x (x - 2)

To find the roots set the each of the factored numbers equal to zero and solve for x:

3x = 0

3x/3 = 0/3

x = 0

x - 2 = 0

x = 2

Hope this helped!

8 0
4 years ago
Solve -3x=2x^2-4 using quadratic formula
frozen [14]

Answer:

x=-2.35078, 0.850781

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Standard Form: ax² + bx + c = 0
  • Quadratic Formula: x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

Step-by-step explanation:

<u>Step 1: Define equation</u>

-3x = 2x² - 4

<u>Step 2: Rewrite into Standard Form</u>

0 = 2x² + 3x - 4

<u>Step 3: Define variables</u>

a = 2

b = 3

c = -4

<u>Step 4: Find </u><em><u>x</u></em>

  1. Substitute:                    x=\frac{-3\pm\sqrt{3^2-4(2)(-4)} }{2(2)}
  2. Evaluate:                       x=\frac{-3\pm\sqrt{9-4(2)(-4)} }{2(2)}
  3. Multiply:                        x=\frac{-3\pm\sqrt{9+32} }{4}
  4. Add:                              x=\frac{-3\pm\sqrt{41} }{4}
  5. Evaluate:                      x=\frac{-3\pm6.40312}{4}
  6. Evaluate:                      x=-2.35078, 0.850781

And we have our final answer!

6 0
3 years ago
A factory can make 3,848 pencils in one hour. Which is the best estimate of how many pencils can be made in 4 hours?
Vikentia [17]

Answer:

15,392 pencils.

Step-by-step explanation:

If a factory can make 3,848 pencils in an hour, then the factory can make 15,392 pencils in 4 hours.

Simply multiply 3,848 by 4.

3,848*4=15,392

Therefore, the factory can make 15,392 pencils in 4 hours.

8 0
3 years ago
Read 2 more answers
What is the best estimate for the mass of a textbook, 1 gram or 1 kilogram
Delicious77 [7]
The best estimate would be one kilogram since one gram is about the mass of a paperclip.
7 0
3 years ago
Read 2 more answers
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