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slavikrds [6]
3 years ago
5

Steps for variables and expressions?

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
8 0
IT DEPENDS.. I can answer if u can be more specific

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Graph the equation<br>y=-(x+2)^2+7​
ELEN [110]

Step-by-step explanation:

Distribute:

=−x2+−4x+−4+7

Combine Like Terms:

=−x2+−4x+−4+7

=(−x2)+(−4x)+(−4+7)

=−x2+−4x+3

Answer:

=−x2−4x+3

7 0
2 years ago
Nora had already read 30% of the book before her teacher assigned it to the class. She is choosing between two options to finish
guapka [62]

Answer:

Let p represent the # of pages in the book.  Then, Nora has already read 0.30p pages and has 0.70p pages left to read.

If she reads 25% pages/night, that means reading 0.25(0.70)p pages per night, or 17.5 pages/night.  If 28% p/n, that means 0.28(0.70)p pages/night, or 19.6p pages/night.

How many nights will it take Nora to finish the book if she reads 25% of 7/10 of the book per night?  Without any calculations, we can answer this by "4 nights, since she reads 1/4 of the unread portion of the book per night."

If she reads 28% of 7/10 of the book per night, that will require fewer nights:

First night:  28%

Second night:  28%  

Third night:  28%

 Total:  3(28%) = 84%

This leaves 16% to read on the final night.

This is one interpretation of what I think is a poorly worded question.

The author of this question might have meant reading 25% of the remaining unread pages per night, which leads to a different answer.

7 0
3 years ago
Find the 7th term of the geometric sequence –4, 12, –36, 108, –324,...
maks197457 [2]

Answer:

a

Step-by-step explanation:

a=-4 r=12/-4=-3

T7= ar^n-1

= (-4)(-3)^7-1

=-2916

5 0
3 years ago
Please help me with this math problem
givi [52]

It should be c really hope this helps and im right have a blessed day:)

5 0
3 years ago
G C D of 130 and 150​
wlad13 [49]

Answer:

GCF = 10

Step-by-step explanation:

8 0
3 years ago
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