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goldenfox [79]
3 years ago
13

What is the sum of 14 and the opposite of 12? A) -26 B) -2 C) 2 D) 26

Mathematics
2 answers:
Nikitich [7]3 years ago
8 0

Answer:

Option C is correct

2 is the sum of 14 and the opposite of 12

Step-by-step explanation:

We have to find:

Sum of 14 and the opposite of 12.

\text{Opposite of 12} = -12

and

\text{Sum of 14 and opposite of 12} = 14 + (-12)

then;

14+(-12) = 14 -12 = 2

Therefore, 2 is the sum of 14 and the opposite of 12

BartSMP [9]3 years ago
7 0
14 is positive and the opposite of 12 is -12. So 14+-12=2. Your answer is C. Hope this helped!
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Hi, can someone help with these two questions ASAP! (Ignore the multiple choice I circled, not sure if it’s correct)
Sindrei [870]

Answer:

1) D. y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10

2) E. The coefficient of x is -16.

Step-by-step explanation:

1) A polynomial is an algebraic expression of the form p(x) = \Sigma \limits_{i = 0}^{n} c_{i}\cdot x^{i}, where n is the grade of the polynomial. In this case, the only equation that satisfies this definition is:

y = -\frac{3}{2}\cdot x^{12} -7\cdot x^{5}+\frac{2}{3}\cdot x -10

Correct answer: D

2) Let p(x) = (2\cdot x + 1) \cdot (5\cdot x^{3}-8\cdot x +4), we proceed to expand the expression by algebraic means:

p(x) = (2\cdot x + 1)\cdot (5\cdot x^{3}) -(2\cdot x +1)\cdot (8\cdot x) + 4\cdot (2\cdot x + 1)

p(x) = 10\cdot x^{4}+5\cdot x^{3}-16\cdot x^{2}+4

We see that coefficients for x^{2} and x are -16 and 0, respectively. Hence, the incorrect answer is E.

3 0
3 years ago
Determine the quadrant(s) in which (x,y) is located so that the condition(s) is (are) satisfied.
Alex777 [14]

Quadrant 4 is the correct answer, and it's the only

7 0
3 years ago
The smallest bone on the body, the stirrup-shaped stapes found in the middle ear, has a typical length of less than 0.33 cm. how
4vir4ik [10]

Answer:

0.13 inches.

Step-by-step explanation:

1 inch = 2.54 cm

So 1 cm = 1/ 2.54 in

0.33 cm = 0.33/2.54 in

= 0.13 inches.

5 0
2 years ago
Use mental mathe to solve n−5=−6
vredina [299]

Answer:n=-1

Step-by-step explanation:n=-6+5

n=-1

4 0
3 years ago
Read 2 more answers
Use the quadratic formula to solve for x. 4x2 +9x-1=0​
insens350 [35]

Answer:

x=\frac{-9\pm\sqrt{65} }{8}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<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</u>

4x² + 9x - 1 = 0

<u>Step 2: Define variables</u>

a = 4

b = 9

c = -1

<u>Step 3: Find roots</u>

  1. Substitute:                    x=\frac{-9\pm\sqrt{9^2-4(4)(-1)} }{2(4)}
  2. Exponents:                   x=\frac{-9\pm\sqrt{81-4(4)(-1)} }{2(4)}
  3. Multiply:                        x=\frac{-9\pm\sqrt{81-16} }{8}
  4. Subtract:                       x=\frac{-9\pm\sqrt{65} }{8}
5 0
2 years ago
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