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artcher [175]
3 years ago
11

Let f be the function given by f(x)=5x^3 - 3x - 7. What is the value of f’(-2)?

Mathematics
2 answers:
Ainat [17]3 years ago
8 0

Answer:

D. 57

Step-by-step explanation

f(x)=5x^3 - 3x - 7 \\  \\ f'(x) = 5 \times 3 {x}^{2}  - 3 \times 1 - 0 \\  \\ f'(x) = 15 {x}^{2}  - 3  \\  \\ plug \: x =  - 2 \\ f'( - 2) = 15 {( - 2)}^{2}  - 3  \\  \\ f'( - 2) = 15  \times 4  - 3  \\  \\f'( - 2) = 60  - 3  \\  \\f'( - 2) = 57  \\  \\

lesantik [10]3 years ago
4 0

letter c is the correct answer

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Step by step please and thank you.
cupoosta [38]

Answer:

  the probability is 2/9

Step-by-step explanation:

Assuming the coins are randomly selected, the probability of pulling a dime first is the number of dimes (4) divided by the total number of coins (10).

  p(dime first) = 4/10 = 2/5

Then, having drawn a dime, there are 9 coins left, of which 5 are nickels. The probability of randomly choosing a nickel is 5/9.

The joint probability of these two events occurring sequentially is the product of their probabilities:

  p(dime then nickel) = (2/5)×(5/9) = 2/9

_____

<em>Alternate solution</em>

You can go at this another way. You can list all the pairs of coins that can be drawn. There are 90 of them: 10 first coins and, for each of those, 9 coins that can be chosen second. Of these 90 possibilities, there are 4 dimes that can be chosen first, and 5 nickels that can be chosen second, for a total of 20 possible dime-nickel choices out of the 90 total possible outcomes.

  p(dime/nickel) = 20/90 = 2/9

8 0
3 years ago
Which is the correct possessive form of the underlined word?
ser-zykov [4K]
B. a butterflys' wings
7 0
3 years ago
Read 2 more answers
What is the radius and diameter of the following circle
son4ous [18]
Radius is 11cm
diameter is 22cm
7 0
3 years ago
Evaluate x-(-23)for x =26
Zina [86]

Answer:

49

Step-by-step explanation:

26- (-23)

26 + 23 This is because when you have a negative times a negative it equals a positive.

3 0
3 years ago
Read 2 more answers
The weights of bags of ready-to-eat salad are normally distributed with a mean of 290 grams and a standard deviation of 10 grams
pentagon [3]
290-10=280

280 is one standard deviation below.
All that are above mean is 50%.
One standard deviation below is 34%.
50%+34%=84%  all of these bags weigh more than 280 g.
So,
100%-84%=16%  should be bags that are less than 280 g.

Answer is b) 16 %.

5 0
3 years ago
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