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True [87]
3 years ago
15

What is the value of A when we rewrite (1/7)^x-2 - (1/7) ^x as A x (1/7)^x

Mathematics
2 answers:
wlad13 [49]3 years ago
8 0

Answer:

48

Step-by-step explanation:

Khan Academy

vitfil [10]3 years ago
3 0

Answer:

i think its 330

Step-by-step explanation:

idfk tbh ijnp

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The Cinemania theater showed 108 different movies last year. Of those, 15 movies were action movies. Based on this data, what is
natita [175]

Answer:

A reasonable estimate of the probability is equal to 0.1389   or  13.89\%

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.  

The size of the sample space is the total number of possible outcomes  

The event space is the number of outcomes in the event you are interested in.  

so  

Let

x------> size of the event space

y-----> size of the sample space  

so

P=\frac{x}{y}

In this problem we have

x=15

y=108

substitute

P=\frac{15}{108}=0.1389

Convert to percentage

0.1389*100=13.89\%

3 0
3 years ago
Marny can type 20 words in 1/3 of an hour. How many words can she type per hour? *​
Vera_Pavlovna [14]

Answer:

60 words

Step-by-step explanation:

20*/X3=60

3 0
3 years ago
Read 2 more answers
Matt needs to swim 8 meters in 25 seconds yo qualify as a state swimer. Which unit rate describes the speed Matt needs to swim​
fiasKO [112]

Answer:

Option D, 0.32 meters per second

Step-by-step explanation:

<u>Step 1:  Find the unit rate at which Matt needs to swim</u>

Make an equation to represent the scenario.

<em>25m = 8</em>

<u>Step 2:  Solve for m by dividing both sides by 25</u>

25m / 25 = 8 / 25

<em>m = 0.32</em>

<u>Step 3:  Check</u>

To check, you can multiply the number of second, 25, by the meters per second to see if you get the total meters, 8.

0.32 * 25

<em>8</em>

So, the answer is correct :)

<u><em>0.32 means that Matt needs to swim 0.32 meters per second to qualify as a state swimmer.</em></u>

Answer:  Option D, 0.32 meters per second

3 0
3 years ago
Read 2 more answers
15 Jesse has to save at least $150 to buy a new phone. He already has $70 in his wallet. He plans to save $20 every each from hi
Talja [164]

Answer:

Jesse with have to wait 4 weeks

Step-by-step explanation:

skip count by 20

8 0
3 years ago
If the original quantity is 12 and the new quantity is 15, what is the percentage increase​
beks73 [17]

Answer:

25%

Step-by-step explanation:

Given data

original quantity =12

new quantity =15

% increase= new-original/original *100

% increase= 15-12/12 *100

% increase= 3/12 *100

% increase=0.25 *100

% increase=25%

hence the increase is 25%

7 0
3 years ago
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