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Luba_88 [7]
4 years ago
11

Need help can someone help me with this question

Mathematics
1 answer:
REY [17]4 years ago
7 0

In system A, the first equation multiply by 4

8x - 4y = 12 (1st)

3x + 4y = 10 (2nd)

--------------------add

11x = 22

So answer is B.



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Write an equation for the nth term of the geometric sequence 3584, 896, 224... Find the sixth term of this sequence
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Answer:

Step-by-step explanation:

r = \frac{a_n}{a_{n-1}} = \frac{896}{3584} =  \frac{1}{4}

Using the geometric series formula for the <em>n</em>th term:

S_n = a \cdot \frac{1-r^n}{1-r} => S_{6} = 3584 \cdot \frac{1 - (\frac{1}{4})^{6} }{1 - \frac{1}{4} }  = 4777\frac{1}{2}

4 0
4 years ago
An on-demand movie company charges $2.95 per movie plus a monthly fee of $39.95. Which expression represents the yearly
MakcuM [25]

Answer: 2.95x+39.95(12)

Step-by-step explanation:

Hi, to answer this question we have t write an expression with the information given:

The yearly cost for x movie rentals is equal to : the product of the cost of each movie (2.95) and the number of movies (x) ;plus the product of the monthly fee (39.95) and the number of months in a year (12)

Mathematically speaking:

2.95x+39.95(12)

5 0
4 years ago
Read 2 more answers
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nadya68 [22]
T= total cost
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Hope this helps! :)
5 0
3 years ago
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Need help with the last three asap
Sunny_sXe [5.5K]
13) Angle 1= 54 Angle 2=36
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Attached is the work
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We have 1.2 × 10^(-4)  x 6.25 × 10^(-5 )  = 7,5 x 10^(-9) = 75 x 10^(-10) square kilometers.
3 0
3 years ago
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