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Yakvenalex [24]

3 years ago

8

Can you please answer this quickly only number 7 and 8 extra points given take a look

2 answers:

Marizza181 [45]3 years ago

8 0

7. 5 because the lowest number of pizza slices is 5. It wouldn't be 15 because there aren't 15 slices of cheese pizza.

O.K, so I'm not sure about 8. I tried to set up a timeline almost. Where I would make seven dashes to equal a week, then put the job abbreviations for the jobs underneath. I did 6 weeks and it never lined up. If you want to try that out for yourself go ahead. I'm not sure if you'll get a different outcome or not.

Anastaziya [24]3 years ago

7 0

7:5
8:15 days
Please don't get mad at me if their are incorrect but i'm sure they are right!

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Which choice shows the product of 22 and 49

Vikentia [17]

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8 0

2 years ago

A. When comparing the "# of Bacteria" each hour, what is the number being multiplied by each time? *

LenaWriter [7]

Answer:

Part a) The number is 8

Part b) The initial number of bacteria is 4

Part c) $y=4(8)^x$

Part d) $y=100(8)^x$

Step-by-step explanation:

we know that

The equation of a exponential function is equal to

$y=a(b)^x$

where

y is the number of bacteria

x is the time in hours

b is the base of the exponential function

a is the initial number of bacteria

Part a) When comparing the "# of Bacteria" each hour, what is the number being multiplied by each time?

we know that

For x=1 h ----> y=32 bacteria

For x=2 h ----> y=256 bacteria

For x=3 h ----> y=2,048 bacteria

For x=4 h ----> y=16,384 bacteria

For x=5 h ----> y=131,072 bacteria

For x=6 h ----> y=1,048,576 bacteria

so

256/32=8

2,048/256=8

16,384\2,048=8

131,072/16,384=8

1,048,576\131,072=8

so

the base of the exponential function b is 8

Part b) What is the initial number of bacteria? (at time zero)

we know that

The number of bacteria at time x=1 hour , divided by the number of bacteria at time x=0 must be equal to 8 (see part a)

so

$\frac{32}{a}=8$

solve for a

$a=32/8=4\ bacteria$

Part c) Write a rule for this table

we have

$y=a(b)^x$

we have

$a=4\\b=8$

substitute

$y=4(8)^x$

Part d) Suppose you started with 100 bacteria, but they still grew by the same growth factor. Write the function rule for this situation

In this case

$a=100$

$b=8$ ---> the growth factor is the same

so

$y=100(8)^x$

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Multiply 3 by 2 to figure out the numerator for /40 and multiply 20 by 5 to figure out the denominator of 15/

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