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lawyer [7]
3 years ago
6

7x2+49x+84=0 by completing the square method

Mathematics
1 answer:
Sloan [31]3 years ago
8 0

Answer:

x=-2

Step-by-step explanation:

7x2+49x+84=0

14+49x+84=0

49x+98=0

49x=-98

x=-98/49

x=-2

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The top of a mountain at its highest point is 13, 385 feet above sea level. Give this height in miles to the nearest
velikii [3]

Since the top of a mountain at its highest point is 13,385 feet, it'll be 2.5 miles.

Firstly, it is important to note that 5280 feet equals to 1 mile. In this case, we are given 13, 385 feet which is to be converted into miles. This will go thus:

= 13385 / 5280

= 2.5 miles.

Based on the above analysis, anytime you want to convert feets to miles, you simply have to divide by 5280. For example, if you want to convert 52840 feet to miles, this will be:

= 52840/5280

= 10 miles.

In conclusion, 13,385 feet will be 2.5 miles.

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6 0
2 years ago
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siniylev [52]

Answer:

x = 10

Step-by-step explanation:

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Divide by 4

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4 0
3 years ago
Read 2 more answers
Where can we put parentheses in 4 x 7 + 2 to make it equivalent to 36?Choose 1 answer:4% (7+2)B(4 x 7) + 2Stuck? Review related
liq [111]

Following the mathematical rules:

0. First, the parenthesis must be solved

,

1. In second place goes the multiplication

Therefore, to make it equivalent to 36:

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Answer:

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3 years ago
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Vanyuwa [196]

Answer:

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Step-by-step explanation:

We know that the base is 24. Using that information, 10^2+24^2=26^2 which is a pythagorean triple

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2 years ago
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