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Leona [35]
2 years ago
14

Solve the equation2x + 4x -7=5×=

Mathematics
1 answer:
Sauron [17]2 years ago
7 0

Answer:

soln,

6x=12

so,x=2.........

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5. Write two inequalities to compare -17 and -22.
galina1969 [7]

Answer:

-17>-22

-22<-17

Negative seventeen is closer to zero, therefore it is always larger than negative twenty-two.

8 0
3 years ago
The mean life of a particular brand of light bulb is 1200 hours. if you know that at about 95% of this brand of bulbs will last
Snowcat [4.5K]
<span>204
   First, lookup a standard normal table and see what the z-score is for 0.025 (one half of 100% - 95%) to allow for equal sized tails. You should find that the z-score is 1.96. That means that 95% of the time, the value should be within 1.96 standard deviations of the mean. Now let's calculate the standard deviation. 800 is 800 - 1200 = -400 to the left of the mean of 1200. 1600 is 1600 - 1200 = 400 to the right of the mean of 1200. So we are an equal distance of 400 on both sides of the mean. And we know from the z-score of 1.96, that we're 1.96 standard deviations from the mean. So a little division will give us the standard deviation. Which is: 400 / 1.96 = 204.0816327
   So the standard deviation of the light bulbs is 204</span>
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3 years ago
At a movie theater, 360 people can see a particular movie over a period of 3 hours. At this
Agata [3.3K]

Answer:233

Step-by-step explanation:cause i said so

7 0
2 years ago
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KatRina [158]
Hello,

Answer A

(x-x0)²+(y-y0)²=r²
7 0
2 years ago
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