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mr_godi [17]
3 years ago
11

Two mechanics were working on your car. One can complete the given job in six hours, but the new guy takes eight hours. They wor

ked togethr er for the first two hours, but then the first guy left to help another mechanic on a different job. How long will it take the new guy to finish your car
​
Mathematics
1 answer:
borishaifa [10]3 years ago
5 0

Answer:

10 hours to do it

Step-by-step explanation:

8-6= 2

8+2=10

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ratelena [41]
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The correct answer is 1,024 pi inches square


7 0
3 years ago
Iconic memory is used when a loud thunderclap occurs during a storm. Please select the best answer from the choices provided T F
jek_recluse [69]

Answer:

The statement is false.

Step-by-step explanation:

" Iconic memory is the visual sensory memory (SM) register pertaining to the visual domain and a fast-decaying store of visual information. It is a component of the visual memory system which also includes visual short-term memory (VSTM) and long-term memory (LTM) "

<em>FOR EXAMPLE:</em>

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Hence the given statement:

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3 years ago
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Find Sn for the arithmetic series 5+7+9 + … and determine the value of n for which the series has sum 165.
SVETLANKA909090 [29]

Answer:

see explanation

Step-by-step explanation:

the sum to n terms of an arithmetic sequence is

S_{n} = \frac{n}{2}[2a + (n - 1)d ]

where d is the common difference and a is the first term

here d = 9 - 7 = 7 - 5 = 2 and a = 5, hence

S_{n} = \frac{n}{2}[(2 × 5) + 2(n - 1) ]

                        = \frac{n}{2}(10 + 2n - 2)

                        = \frac{n}{2}(2n + 8)

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When sum = 165, then

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n² + 4n - 165 = 0 ← in standard form

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equate each factor to zero and solve for n

n + 15 = 0 ⇒ n = - 15

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but n > 0 ⇒ n = 11



4 0
3 years ago
For f (x) = 3x +1 and g(x) = x2 - 6, find (f 3)(x)
Sunny_sXe [5.5K]

Answer:

10

Step-by-step explanation:

f(x) = 3x + 1

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5 0
3 years ago
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