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Alex17521 [72]
2 years ago
13

Which expression is equivalent to > 7^8/7 7^9 7^8 7^7 1/7^8

Mathematics
1 answer:
tankabanditka [31]2 years ago
5 0

Answer:

none of the above the 7^8/8 is equivalent to

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Find (f ∘ g)(4) when f(x) = -5x - 7 and g(x) = -6x 2 + 9x + 9.
mr_godi [17]

Answer:

\boxed{\sf \ \ \ 248 \ \ \ }

Step-by-step explanation:

Hello,

(fog)(4)=f(g(4)) \ \ \ and \ \ \ g(4)=-6*4^2+9*4+9=-51 \ \ so\\(fog)(4)=f(-51)=-5*(-51)-7=255-7=248

hope this helps

7 0
3 years ago
Tamara is at the store buying pencils. There is a package with 4 pencils that costs $6 or a package with 5 pencils that costs $7
Mkey [24]

In order to determine the cost of each pencil we have to divide the total cost for the package of pencils by the number of pencils contained

For the 4 pencils box:

Cost per pencil = Total cost/number of pencils

Cost per pencil = 6/4 = 1.5

Similarly, for the 5 pencils package:

Cost per pencil = 7/5 = 1.4

As you can see, the $7 package is better to buy, because each pencil costs $1.4, then, option A is the correct answer

8 0
1 year ago
Maddie has 180 coins. Of these coins, 1/12 are dimes. About how many dimes does she have?
tia_tia [17]
Remember that "of" means to multiply.
(1/12) of 180 coins are dimes. The number of dimes will be
(1/12)*180 = 180/12 = 15
8 0
3 years ago
2/3 x 4/7 write the answer in the simplest form
trapecia [35]

Answer:

8/21

I don't think that it can be simplified further....

6 0
2 years ago
Read 2 more answers
Giovanna has two possible driving routes to her new workplace, and she is having a hard time figuring out which is faster. The f
Oliga [24]

Answer:

Experiment

Step-by-step explanation:

An observational study is a study where researchers simply collect data based on what is seen and heard and make inferences based on the data collected.

Whereas, Experimental studies are the ones where researchers introduce an intervention and study the effects.

Giovanna did not just collect data alone and make inferences based on the collected data, as is done during an observational study, but she studied the effects of the data that she collected by calculating the average driving duration for each route.

Hence we see that she conducted an Experimental study.

5 0
3 years ago
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