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3 years ago

Precalculus class questions

Mathematics

1 answer:

Delicious77 [7]3 years ago

7 0

This is an exponential function that moved 4 units down.

$y= 3^{x} - 4$

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Convert 7200 seconds into weeks. Round to the nearest hundredth

Reika [66]

Answer:

0.01190476, but since you have to round to the nearest hundredth your answer should be 0.01

Step-by-step explanation:

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3 years ago

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D - 41 = 19

DaniilM [7]

Answer:

see explanation

Step-by-step explanation:

add 41; d = 60

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3 years ago

What is the solution of the equation x2 + 8x = 4?

d1i1m1o1n [39]

Answer:

hope this is correct

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3 years ago

Use the definition f ′(x) = h0f(x + h) - f(x)h to find the derivative. f(x)=x+2

NNADVOKAT [17]

Answer:

f'(x) = 1

General Formulas and Concepts:

Calculus

Limit Properties: $\lim_{n \to a} c = c$
Definition of a Derivative: $f'(x)= \lim_{h \to 0} \frac{f(x+h)-f(x)}{h}$

Step-by-step explanation:

Step 1: Define

f(x) = x + 2

Step 2: Find derivative

Substitute: $f'(x)= \lim_{h \to 0} \frac{((x + h) + 2)-(x+2)}{h}$
Distribute: $f'(x)= \lim_{h \to 0} \frac{x + h + 2-x-2}{h}$
Combine like terms: $f'(x)= \lim_{h \to 0} \frac{h}{h}$
Divide: $f'(x)= \lim_{h \to 0} 1$
Evaluate: $f'(x)= 1$

8 0

3 years ago

What is the slope of the line given by the equation y = 4x? Enter your answer as an integer or fraction in lowest terms.

lisov135 [29]

Answer:

slope = 4

Step-by-step explanation:

recall that for a linear equation in the form:

y = mx + b,

m = slope of line and b is the y-intercept.

In our case, we are given

y = 4x

If we compare this with the general equation above,

we can see that m = 6 and b = 0

hence slope = m = 4

3 0

3 years ago