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sineoko [7]
3 years ago
10

(Justify each step in performing the operation)

Mathematics
1 answer:
Alika [10]3 years ago
6 0

Step-by-step explanation:

<u>Justification of each step:</u>

  • 1. Distributive property
  • 2. Combining like terms; square of i is  - 1.
  • 3. Multiplication property of equation
  • 4. Addition property of equation
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A line with a slope of 2/5 passed through the point (-2,3). Write the equations of the line in point-slope form and graph the li
DochEvi [55]

Answer:

y - 3 = (2/5)(x + 2)

Step-by-step explanation:

Start with the general point-slope form of the equation of a straight line:

y - k = m(x - h).  Now substitute -2 for h and 3 for k, and also 2/5 for m:

y - 3 = (2/5)(x + 2)

5 0
3 years ago
PLEASE HELP 10pts
Veronika [31]

Answer:

Hence the function which has the smallest minimum is: h(x)

Step-by-step explanation:

We are given function f(x) as:

  • f(x) = −4 sin(x − 0.5) + 11

We know that the minimum value attained by the sine function is -1 and the maximum value attained by sine function is 1.

so the function f(x) receives the minimum value when sine function attains the maximum value since the term of sine function is subtracted.

Hence, the minimum value of f(x) is: 11-4=7 ( when sine function is equal to 1)

  • Also we are given a table of values for function h(x) as:

x    y

−2   14

−1   9

 0   6

  1   5

 2   6

 3   9

 4   14

Hence, the minimum value attained by h(x) is 5. ( when x=1)

  • Also we are given function g(x) ; a quadratic function passing through (2,7),(3,6) and (4,7)

so, the equation will be:

g(x)=ax^2+bx+cHence on putting these coordinates we will get:

a=1,b=3 and c=7.

Hence the function g(x) is given as:

g(x)=x^2-6x+15

So,the minimum value attained by g(x) could be seen from the graph is at the point (3,6).

Hence, the minimum value attained by g(x) is 6.

Hence the function which has the smallest minimum is h(x)

6 0
3 years ago
Read 2 more answers
What is 5(2 + x) = 5 ?
Alex787 [66]

5(2+x)=5

or, 10+5x=5

or, 5x= -5

or, x= -1

Hope it helps

8 0
3 years ago
Read 2 more answers
What is bigger 2/3 or 4/5 or
alexandr1967 [171]
4/5 is equal to 0.8 when you divide 4 by 5. 2/3 is 0.66 when you divide 2 by 3. So 4/5 is bigger than 2/3.
6 0
4 years ago
Read 2 more answers
Why is finding the sum in math so important?
sveticcg [70]
A sum in math is the answer after you have Added 2 numbers.

I’m not sure why this would be specifically important.
6 0
3 years ago
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