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4 years ago

Find composite functions

Mathematics

1 answer:

Ilya [14]4 years ago

5 0

Answer:

Hope this is correct.

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Kai calculates that he spends 15% of a school day in science class. If he spends 75 minutes in science class, how many minutes d

kupik [55]

$x-minutes\ in\ school\\15\%=0.15\\100\%=1\\\\From\ proportion:\\\\75\ \ \ -\ \ \ 0.15\\x\ \ \ \ \ -\ \ \ 1\\\\0.15x=75\ \ \ |:0.15\\x=500\\\\He\ spends\ 500\ minutes\ in\ school.$

4 0

4 years ago

Read 2 more answers

A new computer loses 1/2 of its value every year. Which graph could represent the relationship between the year and the computer

Igoryamba

Let's first consider: the fact that a new computer loses 1/2 of its value

⇒ third choice and fourth choice are eliminated

⇒ because of the graph project the computer's value as growing over

years

Now let's try to set up an equation:

After 1st year ⇒ Computer's value = $total_.value*\frac{1}{2}$

After 2nd year ⇒ Computer's value = $total_.value*\frac{1}{2}*\frac{1}{2}=total_.value*(\frac{1}{2} )^2$

After 3rd year ⇒ Computer's value = $total_.value*\frac{1}{2}*\frac{1}{2}* \frac{1}{2}=total_.value*(\frac{1}{2})^3$

..... (Hopefully you see a pattern)

After x year ⇒ Computer's value = $total_.value*(\frac{1}{2})^x$

Therefore, the equation is: $total_.value*(\frac{1}{2})^x$

⇒that means the graph has to exponentially decreasing as it has

an exponent (meaning the function is exponential) and a base less

than 1 (meaning that the function is decreasing)

Answer: Choice (1)

Hope that helps!

5 0

2 years ago

Wesley Snipes earns a monthly salary of $1,685, plus a 8.5% commission on all sales over $2,000 each month. This month, his sale

kogti [31]

Answer:

none of theses choices. wesley makes $2185 this month

Step-by-step explanation:

5 0

3 years ago

The first answer is GH. But if the lenght of EF is a units, then the lenghts of GH is

Vadim26 [7]

D is the answer but please take a pic of your problem if you can it would help alot more

5 0

4 years ago

14/25, 29/50,53/100, 13/20, 3/5 What is the least to greatest

Murrr4er [49]

First find a common denominator between all of the fractions:

14/25= 56/100

29/50= 58/100

53/100

13/20=65/100

3/5= 60/100

Then use the numerators to find the least to greatest numbers:

53/100, 56/100 (14/25), 58/100 (29/50), 60/100 (3/5), 65/100 (13/20)

Last, change the numbers (in order) back to their original fraction:

53/100, 14/25, 29/50, 3/5, 13/20

8 0

3 years ago