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vovangra [49]
2 years ago
12

-3 - 3n = -24 A) No Solution. B) -15 C) -3 D) 4

Mathematics
2 answers:
VMariaS [17]2 years ago
7 0
Images show what you’ll find:

aniked [119]2 years ago
3 0

Answer:

n=7

The solution is in the picture. Hope you understand

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Solve to find x and y in the diagram. HELP ASAP!!
Lapatulllka [165]
X=12, y=7.5

Here is an explanation if you want to know how to do it:

First, look at the diagram and think about what you know so far. Since the lines are parallel, 5x+4y and 12y must be equal. We also know that there is a right angle, so since both angles are equal, 12y=90 and 5x+4y=90.

Solve for y by dividing 90 by 12 to get 7.5, so y=7.5. Sub in this value to the equation on top and you should get 5x+4(7.5)=90 4(7.5)=30, so subtract that from 90 to get 60 and divide 60 by 5 to get 12, so x=12.
5 0
3 years ago
What is the first term in a geometric sequence if the common ratio is −4 and the sum of the first four terms is −255?
posledela
Sn=A1(1-r^n)/(1-r)
Sum of a finite geometric series formula
We know the sum, number of terms and rate, so you plug those in.
-255=A1(1-(-4)^4))/(1-(-4)
-255=A1(1-256)/5
-255=A1(-255)/5
-1275=A1(-255)
5=A1

Hope this helped! Let me know if you have any questions.
8 0
3 years ago
Which decimal number is equal to 4/9 ?
mash [69]
The decimal that is equal to 4/9 is 0.44444?
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A standard container measures 2.4 m by 2.4 m by 6 m.
ella [17]

Answer:

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Step-by-step explanation:

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