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4 years ago

10

A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is la

beled f (x) with entries 0.2, 0.4, 0.8, 1.6, 3.2. Which exponential function is represented by the table?

1 answer:

Anna [14]4 years ago

8 0

Answer: The answer is f(x) = 0.8(2x).

i just did the quiz and got it right

hope this helps you :)

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I dunno how to solve this

Ksenya-84 [330]

Answer:

9

Step-by-step explanation:

First off you need to find the interval that four falls in.

Four is not less than three so you can rule out the first one, four is not greater than 10 so you can rule out the last one. But four is greater than three and less than ten, so it falls in the second interval.

So, now you can substitute four in for x for the second equation

4^2-7

16-7

=9

4 0

3 years ago

Endpoint: (-4, 8), midpoint: (3,-4)<br><br> Find the other endpoint<br><br> Explain please

swat32

Answer: (10,-16)

Step-by-step explanation:

$A(-4,8)\ \ \ \ C(3,-4)\ \ \ \ \ B(x_B,y_B)=?\\$

See the graph below.

$\displaystyle\\\boxed {x_C=\frac{x_A+x_B}{2} }\\\\$

Multiply both parts of the equation by 2:

$2x_C=x_A+x_B\\2x_C-x_A=x_A+x_B-x_A\\2x_C-x_A=x_B$

Hence,

$x_B=2*3-(-4)\\x_B=6+4\\x_B=10$

$\displaystyle\\\boxed {y_C=\frac{y_A+y_B}{2} }$

Multiply both parts of the equation by 2:

$2y_C=y_A+y_B\\2y_C-y_A=y_A+y_B-y_A\\2y_C-y_A=y_B$

Hence,

$y_B=2*(-4)-8\\y_B=-8-8\\y_B=-16\\Thus,\ B(10,-16)$

4 0

2 years ago

The expanded notation of the number 53 961 will be

Harman [31]

50000 + 3000 + 900 + 60 + 1

That is the expanded form

6 0

3 years ago

Which of these is the standard form of the following function?

Step2247 [10]

I’m pretty sure the answer would be B

3 0

3 years ago

Read 2 more answers

Bailey tossed a coin 10 times. The results were 7 heads and 3 tails.

Veronika [31]

The experimental probability of tossing tails is 3/10

7 0

2 years ago