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Harlamova29_29 [7]
3 years ago
10

Write an exponential function in the form y=ab^xy=ab^x that goes through points (0, 20) and (3, 1280).

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
5 0

Answer:

y = 20 4^{x}

Step-by-step explanation:

Use the points to find the values of a and b

Using (0, 20 ) , then

20 = ab^{0} [ b^{0} = 1 ] , then

20 = a

y = 20b^{x}

Using (3, 1280 ) , then

1280 = 20 b³ ( divide both sides by 20 )

64 = b³ ( take the cube root of both sides )

\sqrt[3]{64} = b , that is

4 = b

Then exponential function is

y = 20. 4^{x}

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the function p(t)p(t)p, left parenthesis, t, right parenthesis models the average high temperature, in degrees celsius, of paity
Mnenie [13.5K]

The solution set for the last equation represents the set of all days when the towns have the same average high temperature.

  • The hotness of matter or radiation is expressed by the physical quantity known as temperature. The average air temperature for a specific time period, often a day, a month, or a year, as measured by a thermometer that has been properly exposed.
  • P(t) is the average high temperature, in degrees Celsius, of Paityn's town on t days.

       \begin{aligned} P(t)&=22.5+7.5\cos\left(\dfrac{2\pi (t-28)}{365}\right)\\\\  \end{aligned}

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        \\ V(t)&=30.5+1.5\cos\left(\dfrac{2\pi (t-90)}{365}\right)

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5 0
1 year ago
Can somebody please help me solve this?
egoroff_w [7]
Idk I’m really srry about it
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4 years ago
For which equation would x = 8 not be a solution?
Olegator [25]

Answer:

b. 4x = 48

Step-by-step explanation:

If you look closely an multiply 4 x 8, it equals 32, not 48

The other equations:

8 x 8 does equal 64

10 x 8 does equal 80

9 x 8 does equal 72

It's pretty simple once you try each problem first

Hope this helps!

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4 years ago
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