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mylen [45]
3 years ago
5

Evaluate r(x) = −0.21x^3 + x^2 − 8.1x − 3 for x = −1 and x = 2.

Mathematics
1 answer:
blsea [12.9K]3 years ago
4 0
Hi, your answer will be 6829.62















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SISTEMA DE ECUACIONES
Zina [86]

4

Step-by-step explanation:

5 0
3 years ago
I need a little extra help with number three
diamong [38]

Answer:

The answer to your question is:

Step-by-step explanation:

Data

f(x) = -2x² + 8x - 2

Process

                -2x² + 8x = y + 2

                -2(x² - 4x + 4) = y + 2 - 8

                -2(x - 2)² = y - 6

                    (x - 2)² = 1/2 (y - 6)

Vertex = (2, 6)

Axis of symmetry =   x = 2

y-intercept

                 f(0) = -2(0)² + 8(0) - 2

                 f(0) = 0 + 0 - 2

                 f(0) = -2

Domain    (-∞, ∞)

Range    (-∞, 6]

See the graph below

6 0
3 years ago
The absolute value function, f(x) = |x + 2|, is shown.
Georgia [21]

ANSWER

all real numbers

EXPLANATION

The given absolute value function is

f(x) =  |x + 2|

This function is obtained by shifting the graph of

y =  |x|

to the left by 2 units.

Since the domain of the parent function is all real numbers, the domain of the transformed function is also all real numbers because the shifting the parent function horizontally or vertically does not affect the domain.

5 0
3 years ago
Luis made some trail mix .He mixed 4 2/3 cups of popcorn ,1 1/4 cups of peanuts ,1 1/3 cups of raisins ,and 3/4 cup of sunflower
erastova [34]
I would say the answer is A.
4 0
3 years ago
Can someone help me please
krok68 [10]

Answer:

iTS 2

Step-by-step explanation:

5 0
3 years ago
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