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2 years ago

Match the range of the function f(x) = x2 + 2x − 1 to its domain.

Mathematics

1 answer:

umka21 [38]2 years ago

5 0

Answer: (2,7) (-2,-9) (3,11) (-3,-13)

Step-by-step explanation:

(2)(2)+(2)(2)-1 = 7

(2) (-2)+(2)(-2)-1 = -9

(3)(2)+(2)(3)-1 = 11

(-3)(2)+(2)(-3)-1 = -13

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Yo If anyones awake i really need help

kirill [66]

Answer:

Step-by-step explanation:

Straight line value=180

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Value of ∆TKL

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2 years ago

The number y of hits a new website receives each month can be modeled by y = 4070ekt, where t represents the number of months th

makvit [3.9K]

Answer:

k = 0.2645

Step-by-step explanation:

Given model:

y = 4070 $e^{kt}$

y = no. of hits website received = 9000 (in 3rd month)

t= no. of months website has been operational = 3

put in the above equation:

9000 = 4070 $e^{3k}$

$\frac{9000}{4070}$ = $e^{3k}$

$\frac{900}{407}$ = $e^{3k}$

Taking natural logarithm on both sides, we get:

$ln\frac{900}{407}$ = $ln(e^{3k})$

$ln\frac{900}{407}$ = 3k lne

lne=1

$ln \frac{900}{407}$ = 3k

or k = $\frac{1}{3}$ $ln\frac{900}{(407)}$

k = $\frac{1}{3}$ (0.7936)

k = 0.2645

7 0

2 years ago

What principle will amount to $6000 if invested at 5.5% compounded monthly for 10 years?

Tju [1.3M]

Answer:In 10 years, you will have $10,386.46

Step-by-step explanation:

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2 years ago

Solve for r. 7(r + 1) = 20.3

docker41 [41]

Answer:

r = 1.9

Step-by-step explanation:

7r + 7 = 20.3

- 7 - 7

7r = 13.3

divide by 7

r = 1.9

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2 years ago

Read 2 more answers

Start at $82 and count to $512

In-s [12.5K]

Answer:

The easiest way is to count by 1 starting from 82 till you reach 512.

good luck, i hope this helps :)

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2 years ago