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2 years ago

If f(x) = 5x2+2, then what is the slope of f(x) at x = 4?

Mathematics

1 answer:

REY [17]2 years ago

6 0

The slope of a function at a point is the value of its derivative there.

... f'(x) = 5·(2x) + 0 = 10x . . . . . . using the power rule: (d/dx)(xⁿ) = n·xⁿ⁻¹

Then

... f'(4) = 10·4 = 40 . . . . . the slope at x=4

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Ethan wants to put a fence around his vegetable garden. The garden is 30 feet wide and 15 feet long. If the total cost of the fe

OverLord2011 [107]

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7 0

2 years ago

M(x)=x^2-3x N(x)=x-5 MN(-1)= ? A.18 B.-20 C.-22 D. -24

schepotkina [342]

Answer:

d. -24

Step-by-step explanation:

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M(-1)=4

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2 years ago

What is 4 tens and 6 tenths as a decimal

Aleksandr [31]

Answer 4.6

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Katerina is a botanist studying the production of pears by two types of pear trees. she noticed that Type A trees produced 20 pe

Ronch [10]

Answer:

120 pears

Step-by-step explanation:

Let the number of pears produced by Type B be x

Number of pears produced by type A=144

According to question

Type A produce 20% more pears than B

x+ x ×20%= 144

x+x× $\frac{20}{100}$ = 144

$\frac{100x+20x}{100}$ = 144

$\frac{120x}{100}$ =144

x= 144× $\frac{100}{120}$

x=120 pears

Hence, Number of pears produced by B= 120 pears

Hence, the correct answer is 120 pears

5 0

2 years ago

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lukranit [14]

Step-by-step explanation:

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16x = 16

x=1

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3 years ago