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lisabon 2012 [21]
3 years ago
10

1. Find the value of each expression. Show your work.

Mathematics
2 answers:
Mashcka [7]3 years ago
7 0
Are the decimal points supposed to be multiplication symbols?
kolezko [41]3 years ago
4 0

Answer: A) 1.44 B) 13 C) 3

Step-by-step explanation:

A) 1.2 * 1.2 =1.44

B) (8) +17 - (12)= (8+17) -12= (25)- (12)= 13

C) (9*9) / (3*3*3)= (81) / (27)= 3

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Step-by-step explanation:

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3 years ago
Find the volume of the composite solid. Round your answer to the nearest tenth.
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Use the graph for problems 14 and 15<br><br>​
Charra [1.4K]

9514 1404 393

Answer:

  14.  C

  15.  C

Step-by-step explanation:

14. The function is entirely in quadrants I and II, so the leading coefficient is positive. This eliminates choices A and B.

The horizontal asymptote is 0, not -1, eliminating choice D.

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3 0
3 years ago
An infinite geometric series has a first term ai = 15 and a sum of 45. Explain how you
oee [108]

Answer:

r= \frac{2}{3}

Step-by-step explanation:

The sum to infinity of a geometric series is calculated as

S∞ = \frac{a_{1} }{1-r} ; | r | < 1

where a₁ is the first term and r the common ratio

here a₁ = 15 and S∞ = 45 , then

45 = \frac{15}{1-r} ( multiply both sides by (1 - r ) )

45(1 - r) = 15 ( divide both sides by 45 )

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- r = \frac{1}{3} - 1 = - \frac{2}{3} ( multiply both sides by - 1 )

r = \frac{2}{3}

8 0
2 years ago
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