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pentagon [3]
2 years ago
14

Solve each equation

Mathematics
1 answer:
aliya0001 [1]2 years ago
5 0

Step-by-step explanation:

1.

0 =  {x}^{2}  - 7x - 18 \\ 0 =  {x}^{2}  + 2x - 9x - 18 \\ 0 = x(x + 2) - 9(x + 2) \\ 0 = (x + 2)(x - 9) \\  \\  \\ (x + 2) = 0 \:  \:  \:  \: or \:  \:  \:  \: (x - 9) = 0 \\  \\if  \:  \:x + 2 = 0 \\x = 0 - 2 \\ x =  (- 2) \\  \\ if \:  \:x - 9 = 0 \\ x = 0 + 9 \\ x = 9 \\

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Answer:

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Step-by-step explanation:

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7 0
3 years ago
What is the nth term of the geometric sequence -2,10,-50
poizon [28]

Answer:

T_n=-1(-5)^n^-^1

Step-by-step explanation:

We are given;

A geometric sequence;

-2,10,-50

Required to determine the nth term

The nth term in a geometric sequence is given by the formula;

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In this case;

a_1=-2

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To get the nth term in the given geometric sequence we use;

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3 0
2 years ago
A printing company charges $42 plus $0.05 per page. Another company just charges $0.08 per page. How many pages are in an order
Nookie1986 [14]
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0.03x / 0.03 = 42 / 0.03
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To check

0.08x = 42 + 0.05x
0.08 (1400) = 42 + (0.05 * 1400)
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