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sergey [27]
3 years ago
13

Help me answer this question please​

Mathematics
1 answer:
arlik [135]3 years ago
7 0

Answer:

f'(2) = 8

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Calculus</u>

The definition of a derivative is "the slope of the tangent line".

Derivatives of constants are 0.

Basic Power Rule:

  • f(x) = cxⁿ
  • f’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x² - 4x + 2

<u>Step 2: Find 1st Derivative</u>

  1. Basic Power Rule:                    f'(x) = 2·3x²⁻¹ - 1·4x¹⁻¹
  2. Simplify:                                    f'(x) = 6x - 4

<u>Step 3: Find tangent slope</u>

  1. Define:                    f'(x) = 6x - 4, x = 2
  2. Substitute:              f'(2) = 6(2) - 4
  3. Multiply:                  f'(2) = 12 - 4
  4. Subtract:                 f'(2) = 8

<u>Step 4: Identify</u>

f'(2) = 8 tells us that at <em>x</em> = 2, the slope of the tangent line is 8.

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3 different problems.
igor_vitrenko [27]

Answer:

see below

Step-by-step explanation:

b - 4 = 3

Add 4 to each side

b - 4+4 = 3+4

b = 7

-32 = 8w

Divide by 8

-32/8 = 8w/8

-4 = w

n/7 = -4

Multiply by 7 to each side

n/7 *7 = -4*7

n = -28

8 0
3 years ago
Read 2 more answers
How many ways can a person select 3 coins from a box consisting of a penny, a nickel, a dime, a quarter, a half dollar, and a on
tekilochka [14]

Answer:

A person can select 3 coins from a box containing 6 different coins in 120 different ways.

Step-by-step explanation:

Total choices = n = 6

no. of selections to be made = r = 3

The order of selection of coins matter so we will use permutation here.

Using the formula of Permutation:

                  nPr = \frac{n!}{(n-r)!}

We can find all possible ways arranging 'r' number of objects from a given 'n' number of choices.

Order of coin is important means that if we select 3 coins in these two orders:

--> nickel - dime - quarter

--> dime - quarter - nickel

They will count as two different cases.

Calculating the no. of ways 3 coins can be selected from 6 coins.

nPr = \frac{n!}{(n-r)!} = \frac{6!}{(6-3)!}

nPr = 120

6 0
3 years ago
Six more than a quotient of a number and three is greater than 14
Lorico [155]

Remark

You sure do have to read that a couple of times.

The quotient is an answer after a division takes place So you are dividing x/3

When you have figured out that phrase you add six onto it.

(x/3) + 6 > 14 Subtract 6 from both sides.

(x/3) +6 - 6 > 14 - 6

(x/3) > 8 Now multiply by 3

x > 8*3

x > 24 <<<<<< Answer

3 0
3 years ago
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CAN I ALSO GET AN EXPLANATION PLEASE!​
ddd [48]

Answer:

ok no prob ...........lolllllll

7 0
3 years ago
What is the mean number of hours worked that week?
Veseljchak [2.6K]

Answer:

well how menny hours per day?

Step-by-step explanation:

Mean is the middle

Median is the average

Mode is most often.

4 0
3 years ago
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