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3 years ago

Fast really need help

Mathematics

2 answers:

IgorLugansk [536]3 years ago

8 0

Answer:

3^6 i think

Step-by-step explanation:

yanalaym [24]3 years ago

4 0

Answer:

Step-by-step explanation:

$7)3^{2}*3^{4}=3^{2+4}=3^{6}\\\\8)\frac{4^{10}}{4^{2}}=4^{10-2}=4^{8}\\\\9)4^{3}*4^{-6}=4^{3-6}=4^{-3}=\frac{1}{4^{3}}$

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PLEASE Answer! I'll Give Brainliest And A Thanks For A GOOD Answer.

melisa1 [442]

Answer: Your welcome the answer is in the attached Image.

Step-by-step explanation: mark me brainliest.

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2 years ago

Find the exponential function that passes through the points (2,80) and (5,5120)

juin [17]

Answer:

y = 5·4^x

Step-by-step explanation:

If you have two points, (x1, y1) and (x2, y2), whose relationship can be described by the exponential function ...

y = a·b^x

you can find the values of 'a' and 'b' as follows.

Substitute the given points:

y1 = a·b^(x1)

y2 = a·b^(x1)

Divide the second equation by the first:

y2/y1 = ((ab^(x2))/(ab^(x1)) = b^(x2 -x1)

Take the inverse power (root):

(y2/y1)^(1/(x2 -x1) = b

Use this value of 'b' to find 'a'. Here, we have solved the first equation for 'a'.

a = y1/(b^(x1))

In summary:

b = (y2/y1)^(1/(x2 -x1))
a = y1·b^(-x1)

For the problem at hand, (x1, y1) = (2, 80) and (x2, y2) = (5, 5120).

b = (5120/80)^(1/(5-2)) = ∛64 = 4

a = 80·4^(-2) = 80/16 = 5

The exponential function is ...

y = 5·4^x

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2 years ago

Dirk plants 12 seedlings in 8 min. At this rate, how many seedlings could he plant in 70 min?

Zigmanuir [339]

The answer to this question is B. 105

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3 years ago

The value of homes sold in Hampton VA are normally distributed with a mean of $200,000 and a standard deviation of $10,000. If 1

LenKa [72]

Answer:

84%

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

x is the value to evaluate, m the mean, sd the standard deviation

So for 190000 we have:

z = (190000 - 200000) / (10000)

z = -1

and this value represents 0.1587

for 230000 we have:

z = (230000 - 200000) / (10000)

z = 3

and this value represents 0.9987

we subtract:

0.9987 - 0.1587 = 0.84

Which means that it represents 84% of the houses

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2 years ago

What are transformations?

Nuetrik [128]

Answer:

a transformation happen when the shape changes. There are four transformations

translation

rotation

reflection

dilation

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3 years ago