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Inessa05 [86]
3 years ago
5

Help help help help!!!!!

Mathematics
2 answers:
cluponka [151]3 years ago
6 0

Answer:

24.5 is the answer

Step-by-step explanation:

Nata [24]3 years ago
6 0
A=l•w
l=x+7
w=x+1

A=(x+7)•(x+1)
A=x^2+x+7x+7
A=x^2+8x+7
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PLS HELP ME ASAP FOR 10 and 11 (SHOW WORK!!) + LOTS OF POINTS!!
hoa [83]
17>n because 17 is more than n
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3 years ago
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What is the 9th term of the geometric sequence 4, −20, 100, …?
sveta [45]
First, we are going to find the common ratio of our geometric sequence using the formula: r= \frac{a_{n}}{a_{n-1}}. For our sequence, we can infer that a_{n}=-20 and a_{n-1}=4. So lets replace those values in our formula:
r= \frac{-20}{4}
r=-5

Now that we have the common ratio, lets find the  explicit formula of our sequence. To do that we are going to use the formula: a_{n}=a_{1}*r^{n-1}. We know that a_{1}=4; we also know for our previous calculation that r=-5. So lets replace those values in our formula:
a_{n}=4*(-5)^{n-1}

Finally, to find the 9th therm in our sequence, we just need to replace n with 9 in our explicit formula:
a_{9}=4*(-5)^{9-1}
a_{9}=4*(-5)^{8}
a_{9}=1562500

We can conclude that the 9th term in our geometric sequence is <span>1,562,500</span>
4 0
3 years ago
Need help please , I know the basic math. how do I solve this?
Mkey [24]
(7/15)/(3/5)
easy
(a/b)/(c/d)=(a/b)(d/c)
invert and multiply (what it does is it cancels the bottom and makes it one)
(7/15)/(3/5)=(7/15)(5/3)=35/45=7/9

answer is C
3 0
3 years ago
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Add 11/6x and 2/13x<br><br><br> Add 11/6x and 2/13x
pantera1 [17]

Answer:

The answer to your question is the letter B

Step-by-step explanation:

Data

                        11/6x + 2/13x =

Process

1.- Find the Greatest common factor

GCF = (6)(13)x                  

GCF = 78x              Just multiply the terms that are different

2.- Sum the terms up

                      11/6x + 2/13x = [(11 x 13) + (6 x 2)] / 78x

3.- Simplify

                                           = [143 + 12]/78x

                                           = 155/78x

4.- It is not possible to simplify more so the answer is  155/78x

                 

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=9e%2B4%3D-5%2B14%2B13e" id="TexFormula1" title="9e+4=-5+14+13e" alt="9e+4=-5+14+13e" align="ab
Alekssandra [29.7K]
E = -5/4 or -1.25 or -1 1/4
5 0
2 years ago
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