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3 years ago

Fund the separate equation and angles between them

Mathematics

1 answer:

irga5000 [103]3 years ago

7 0

Um, is there angles to look at, or an actual problem?

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Select all the correct answers. Btw Ik that 12 to the third power is correct I don't know any of the other ones

irina [24]

It would be C,D
Because 12^3=1728
And 2^6*3^3=1728

Hope this helps

Have a great day/night

3 0

3 years ago

What is the roots of f(x)=-x^2-6x-14

Nutka1998 [239]

Answer:

$x=-3\pm i \sqrt{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

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

Algebra II

Imaginary roots: √-1 = i

Step-by-step explanation:

Step 1: Define function

f(x) = -x² - 6x - 14

Step 2: Set up

Set equation equal to 0: -x² - 6x - 14 = 0
Factor out -1: -(x² + 6x + 14) = 0
Divide both sides by -1: x² + 6x + 14 = 0

Step 3: Define variables

a = 1

b = 6

c = 14

Step 4: Find roots

Substitute: $x=\frac{-6\pm\sqrt{6^2-4(1)(14)} }{2(1)}$
Exponents: $x=\frac{-6\pm\sqrt{36-4(1)(14)} }{2(1)}$
Multiply: $x=\frac{-6\pm\sqrt{36-56} }{2}$
Subtract: $x=\frac{-6\pm\sqrt{-20} }{2}$
Factor: $x=\frac{-6\pm\sqrt{-1} \sqrt{20} }{2}$
Simplify: $x=\frac{-6\pm2i \sqrt{5} }{2}$
Factor: $x=\frac{2(-3\pm i \sqrt{5} )}{2}$
Divide: $x=-3\pm i \sqrt{5}$

8 0

3 years ago

98 POINTS!! PLEASE HELP

denis23 [38]

Answer:

A) what did the student do wrong, explain why they are incorrect

B) Demonstrate and explain the correct way to answer the question.

Lauren says that two expressions 3x+4(2x+5) and 6x +5x +5 are equivalent. Simplify the expressions to determine whether or not Lauren is correct. Substitute a value for x to see if she is right.

3x+8x+20 = 6x+5x+5

11x+20 = 11x+5

She is wrong

Students answer: She is correct because both equal 11x +5. I substituted x=2 and got 27 for both

She is wrong because 27 will be the answer for ' 11x+5' only. The correct method should be

x=-15

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

1. Find mYX. 50 points if answer.

user100 [1]

Answer:

m<YX=60° is a required answer

4 0

3 years ago

Read 2 more answers

A triangle has sides with lengths of 5x-7,3x-4 and 2x-6. What is the perimeter of the triangle?

boyakko [2]

The perimeter is the sum of all the sides, so P = (5x -7) + (3x-4) + (2x -6). Then group like terms so you have p = 5x + 3x + 2x -7-4-6 and end up with P = 10x - 17

7 0

3 years ago