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3 years ago

Find the domain of the function f(x) = – 1x^2 – 2x – 1

Mathematics

1 answer:

navik [9.2K]3 years ago

7 0

Answer:

All real numbers.

Step-by-step explanation:

Since this is a quadratic function, that means the domain is all real numbers.

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HELP !! anyone please i need this done in less than in hour JUST ANSWERS WILL DO

MrRa [10]

Answer:

Step-by-step explanation:

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1 year ago

Of 450 college students, 110 are enrolled in math, 205 are enrolled in English, and 50 are enrolled in both. If a student is sel

likoan [24]

Answer:

Step-by-step explanation:

Given that Of 450 college students, 110 are enrolled in math, 205 are enrolled in English, and 50 are enrolled in both. If a student is selected at random

the probability

(a) The student is enrolled in mathematics= $\frac{110}{450} =0.244\\$

(b) The student is enrolled in English.= $\frac{205}{450} =0.456\\$

(d) The student is enrolled in mathematics or English.= $\frac{110+205-50}{450} =0.589\\$

(e) The student is enrolled in English but not in mathematics.

= $\frac{205-50}{450} =0.344\\$

(f) The student is not enrolled in English or is enrolled in mathematics.

= $\frac{450-205+110}{450} =0.7889\\$

8 0

3 years ago

Simplify each of the expression (x-7)(x+3)

emmainna [20.7K]

Answer:

x² - 10x + 21

Step-by-step explanation:

4 0

1 year ago

Who is farthest from the school

postnew [5]

Using the law of cosines:

The grocery store to the school:

Distance = √(7^2 + 10^2 - 2*7*10*cos(100)

Distance = 13.16 miles

The movie store to the school:

Distance = √(7^2 + 10^2 - 2*7*10*cos(120)

Distance = 14.80 miles

The friend is further away.

7 0

3 years ago

What is the value of the n in this equation n + 16 = 21

Verdich [7]

Answer:

n = 5

Step-by-step explanation:

Given

n + 16 = 21 ( isolate n by subtracting 16 from both sides )

n = 5

7 0

2 years ago

Read 2 more answers