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Soloha48 [4]
3 years ago
13

Solve using the quadratic formula? 2x2 + x - 15 = 0

Mathematics
2 answers:
Fofino [41]3 years ago
4 0

Answer:

x= 5/2 or -3

Step-by-step explanation:

qwelly [4]3 years ago
3 0

Answer:

x= 5/2,-3

Step-by-step explanation:

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The two green color codes are similar.

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A contrasting color would aid in the interpretation of this graph.

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Find the square root of the decimal no 2.56
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Consider this decimal as a fraction.

We have:

\sqrt{ \frac{256}{100} }

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3 years ago
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Answer

396 miles and $28.71
8 0
3 years ago
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Find the 14th term of the geometric sequence 7,28,112
Paraphin [41]

Answer: 469762048

Step-by-step explanation:

1: 7*4^0=

7*1=7

2:7*4^1=

7*4=28

3: 7*4^(3-1)=

7*4^2=

7*16=112

14: 7*4^(14-1)=

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5 0
2 years ago
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A rectangular storage container with an open top is to have a volume of 10 m3. The length of this base is twice the width. Mater
Gala2k [10]
L = 2 W
B = L x W = 2 W²
Side Area = 2 W H + 2 L H = 2 H ( W + L ) = 6 H W
V = 2 W² H = 10
H = 5 / W²
Cost = 15 * 2 W² + 9 * 5/W
= 30 W² + 270/ W 
C ` = 60 W - 270 / W² 
= ( 60 W² - 270 ) / W² = 0
60 W² = 270
W ² = 270 : 60
W² = 4.5
W = √ 4.5 = 2.12
Cost (min) = 15 * 2 * 4.5 + 30 / 2.12 = 135 + 14.15 = $149.15
Answer: The cost of materials for the cheapest such container is $149.15. 
8 0
3 years ago
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