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Margarita [4]
3 years ago
11

Is the answer D or A

Mathematics
2 answers:
raketka [301]3 years ago
7 0
Well an axis is like the whole line, so I would think its A, hope this helps.
liubo4ka [24]3 years ago
3 0
The answer is a. the focus


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PLEASE HELP ME FAST!
Elenna [48]

Answer:

From <u>fourth</u> month onwards, the growth rate of f(x) is greater than that of g(x).

Step-by-step explanation:

Given:

The growth rates of both bank accounts are given as:

f(x)=3^x\\g(x)=5x+25

Now, as per question, we need to find the value of 'x' when the value of f(x)>g(x). Or,

3^x>5x+25

Now, we can do this by checking the values of 'x' by hit and trial method.

Let x=1. The inequality becomes:

3^1>5(1)+25\\3>30(False)

Let x=2. The inequality becomes:

3^2>5(2)+25\\9>35(False)

Let x=3. The inequality becomes:

3^3>5(3)+25\\27>40(False)

Let x=4. The inequality becomes:

3^4>5(4)+25\\81>45(True)

Therefore, the value of 'x' for which f(x)>g(x) is 4.

So, from the fourth month onwards, the balance in f(x) becomes greater than g(x).

The graphical solution is shown below to support the same.

From the graph, we can conclude that after the 'x' value equals 3.4, the graph of f(x) lies above of g(x). Hence, f(x)>g(x) for x>3.4

8 0
3 years ago
Fill in the table using this function rule.
astra-53 [7]

12, 16, 20, 44

Just substitute the number on the x side of the table for x in the equation and solve to get the y value.

3 0
3 years ago
Read 2 more answers
Hello, I need help with these 2 questions! Please show how you got your answer, thanks!
Karo-lina-s [1.5K]

Answer:

this y easy use your mind

6 0
3 years ago
A model rocket is launched with an initial upward velocity of 126 ft/s. The rocket's height h (in feet) after 1 seconds is given
Vlad [161]

Step-by-step explanation:

f(t) = -16t² + 126t

for what values of t did this function deliver 50 ft of height ?

50 = -16t² + 126t

-16t² + 126t - 50 = 0

the general solution to such a squared equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

x = t

a = -16

b = 126

c = -50

t = (-126 ± sqrt(126² - 4×-16×-50))/(2×-16) =

= (-126 ± sqrt(15876 - 3200))/-32 =

= (-126 ± sqrt(12676))/-32 =

= (-126 ± 112.5877436...)/-32

t1 = (-126 + 112.5877436...)/-32 = -13.41225644.../-32 =

= 0.419133014... ≈ 0.42 seconds

t2 = (-126 - 112.5877436...)/-32 = -238.5877436.../-32 =

= 7.455866986... ≈ 7.46 seconds

so, this means, right after launch the ticket reaches 50ft (from below) after 0.42 seconds, and then, when it falls back down, it will reach 50ft again (this time from above) after 7.46 seconds of flight time.

3 0
2 years ago
Enrique borrowed $23,000 to buy a new car . He pays his uncle 2% interest on the $4,500 he borrowed from him, and he pays the ba
Anuta_ua [19.1K]

Answer:

The average interest rate will be approximately 9.64%

Step-by-step explanation:

Enrique borrowed $23000

2% interest on $4500 will be

4500 × 2/100

= 45 × 2

= $90

On the rest, which is

$23000 - $4500 = $18500

11.5% interest on $18500 will be

18500 × 11.5/100

= 185 × 11.5

= $2127.50

The total interest will be

$90 + 2127.50 = $2217.50

The average interest will be Total interest multiply by 100, divide by principal

That is Interest = pr/100, where t = 1

r = (I × 100)/p

r = (2217.50 × 100)/23000

r = 221750/23000

r ≈ 9.64%

5 0
4 years ago
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