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alina1380 [7]
3 years ago
5

What is the domain of f(x)=9-x^2

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
6 0
the domain of f(x)=9-x^2 is (-∞,∞), {x|x ∈r} 
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The value of πPhone stock has increased 9% each year for the past several years. In 2020, the stock was worth $75. What will the
Iteru [2.4K]

Answer:

2027 = $122.25

2016 = $48

Step-by-step explanation:

Find 1% of 75

75 / 100 = 0.75

multiply by 9

0.75 * 9 = 6.75

So that's $6.75 each year

Now, lets find our answers for 7 years.

6.75 * 7 = $47.25

75 + 47.25 = $122.25

<u>The stock will be $122.25 in 2027</u>

Now for 2016.

$6.75 * 4 = $27

$75 - $27 = $48

<u>The stock was $48 in 2016</u>

4 0
3 years ago
Can someone please help me with this question? Thanks.
katrin2010 [14]

Area = length x width

Area = 3x + 5 Cm x 8 cm

Multiply each term by each term.

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3 0
3 years ago
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siniylev [52]

Answer:

the first one is A, the second one is D.

Step-by-step explanation:

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8 0
3 years ago
Which of the following ordered pairs represents the solution to the system of equations below?
expeople1 [14]
<span>-3x + 2y = 2  eq (1)

  7x - 3y = 7    eq (2)

Mutiply eq (1) by 3 and eq (2) by 2:

-9x + 6y = 6

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Add th two new equations:

-9x + 14x = 6 + 14

=> 5x = 20

=> x = 20/5

=> x = 4

Now from eq (1)

-3(4) + 2y = 2

=> 2y = 2 + 12

=> 2y = 14

=> y = 14 / 2

=> y = 7

So the ordered pair is (4,7)

Answer: option B. (4,7)
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3 years ago
What is the constant of proportionality in the following equation?<br><br> y=54.3x
Karolina [17]

Answer:

54.3

Step-by-step explanation:

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3 years ago
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