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romanna [79]
3 years ago
9

How do I solve this properly?

Mathematics
1 answer:
o-na [289]3 years ago
6 0

Answer:

x \geq 4

Step-by-step explanation:

4x^2 - 64 \geq 0 ; move 64 over

4x^2 \geq 64 ; divide by 4

x^2 \geq 16 ; take square root of both sides

x \geq 4

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Find three consecutive even integers such that 3 times the first is 26 less than twice the sum of the last two
Dimas [21]
Let's say our first integer is "a".

how to get the next consecutive EVEN integer?  well, just add or subtract 2 from it, therefore, the second consecutive integer will be "a + 2".

and the next after that, will then be (a + 2) + 2, or "a + 4".

so those are are 3 integers, a           a + 2           a+4

notice that, from any even or odd integer, if you hop twice either forwards or backwards, you'll land on another even or odd integer respectively.

2 + 2 is 4, or 8 + 2 is 10  some even ones

3 + 2 is 5, or 13 + 2 is 15, some odd ones

\bf \stackrel{\textit{3 times the first}}{3a}~~=~~\stackrel{\textit{26 less than twice the sum of the others}}{2[~(a+2)+(a+4)~]~~~-26}
\\\\\\
3a=2[~2a+6~]-26\implies 3a=4a+12-26\implies 3a=4a-14
\\\\\\
0=a-14\implies 14=a

what are the other two consecutive integers?  well, a + 2 and a + 4.
4 0
3 years ago
Geometry help needed. more information in the picture. please help. would be greatly appreciated.
ratelena [41]

Answer:

60

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4 0
2 years ago
What is the probability that the first card is a kingking and the second card is a kingking if the sampling is done with​ replac
IRINA_888 [86]
You want to draw 2 kings from a 52 card deck. And you do it with replacement.
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thus
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8 0
3 years ago
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Naddika [18.5K]

X=180-57-57=66

<em>Dababy sus</em>

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