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kherson [118]
3 years ago
9

If a+b-c=d, if a-b+c=e, then a= ?

Mathematics
1 answer:
yaroslaw [1]3 years ago
4 0
A + b = d+c 
<span>a - b = e - c </span>
The b and c cancel out. 
<span>2a = d+e </span>
<span>a = (d+e)/2 </span>

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The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 50, 60,72,... Find the 8th term.
Vadim26 [7]

Answer:

179.159

Step-by-step explanation:

Given the sequence :

50, 60, 72,..

The sequence given is a geometric sequence :

For a geometric sequence ;

ar^(n - 1)

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r = a2 / a1 = 60 / 50 = 1.2

The 8th term ; n =8

a8 = ar^(n - 1)

a8 = 50*1.2^(8 - 1)

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a8 = 50*3.5831808

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8 0
3 years ago
I just started learning about rate and I am stuck on a question.(A watch keeps perfect time but only has an hour hand. If the ho
8090 [49]

Answer:

36 minutes past 1, or 1:36

Step-by-step explanation:

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Since 1 hour equals 60 minutes, it takes 60 minutes to go from the 1 o'clock position to the 2 o'clock position.

The hour hand is 3/5 of the way from 1 to 2, so the number of minutes past 1 o'clock is 3/5 of 60 minutes.

3/5 of 60 minutes =

= 3/5 * 60 minutes

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3 years ago
Describe the transformation of the graph of the parent function y = √x for the function y = √x + 7 + 5.
kotegsom [21]

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The graph is shifted 7 units and 5 units. Left and Up.

4 0
3 years ago
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How many solutions does this equation have?
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