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4 years ago

Find the slope of a line that is perpendicular to the graph of 2x – 5y = 7.

Mathematics

1 answer:

valkas [14]4 years ago

8 0

Answer:

the slope would be -5/2

Step-by-step explanation:

this is because you need to write it in slope intercept format and then you need to get the reciprocal of it.

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20 &21 pleaseee 15 points

VashaNatasha [74]

Answer:

20. is B (second one)

21. is A (first one)

Step-by-step explanation:

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3 years ago

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How do I simplify 6 - x + (x - 1)

levacccp [35]

Answer:

Step-by-step explanation:

$6-x+(x-1)=6-x+x-1\\\\\text{combine like terms}\\\\=(-x+x)+(6-1)\\\\=5$

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3 years ago

PLEASE ANSWER, I AM STRUGGLING! WILL GIVE POINTS! <3

Oliga [24]

X/2 = 68.2
Given that Colin’s number is X, he divided it by 2. Hence it will be x/2 =68.2. Hope this helps! :)

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3 years ago

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Suppose that a storm front is traveling at 33 mph. When the storm is 13 miles away a storm chasing van starts pursuing an averag

kramer

Answer:

= 15mins 18 seconds. The storm chaser van drove 13.53 miles to catch up with the storm which obviously has moved less than 0.53 miles as it was same time but multiplied below by 0.5 per minute as speed per minute is 0.5 for the storm. See right at the end the storm only moved 1.11 mile.

Step-by-step explanation:

We count in 1 minutes

54 mph = 54/60 = 0.9 miles per minute

Storm = 13 m + 1 minute is;

33/60 = 0.55 miles = 11/20

M = (16 7/10 * 9/10x) = ( 3 7/10 * 11/20y ) +13

M = 15 3/10x = ( 407/200y +13) (407/200 = y starting value +13)

M = 15 3/10x = 15 3/10 = 16 7/10x (the same as 16 7/10* 9/10 for x)

M = 15 3/10 x = 15 3/10 = 15.03

M = 16 7/10x / 9/10y (is also the same as 186/1000)

X = 185⁄1000 = 37⁄200xy x 16 7/10 (as starting value)

7/10 of 60 = 42 minutes

3/10 of 60 = 18 minutes

x = 15 mins 18 seconds.

y = 15 mins 18 seconds.

as 0.005 left over for y 3/10 was actually 15.035 gives us 0.005 of 60 can not be rounded up to a second.

However as we started with 16mins and 7/10 we can see that we multiplied by 9/10 so when we divide 16 7/10 by 9/10 we find 185⁄1000 = 37⁄200

To equal the mileage of the storm of where we multiplied 3 7/10 by 17/10

= 37/200 just the same

We added 13 miles of the storm to find each was multiplied by the larger x sum 9/10 and y was multiplied

As 35/200 + 13 =

13 37/200

37/200 of 60 = 11.1 = 11.06 minutes which is

= 15.04 % more for y as 13 + 2 mins + 06 seconds = 15.06 = 15.035

The percentage looks the same but valued different as 2 of 13 as a percentage is multiplied as 13 x 15.04% to equal the 2 of 15 miles as 15.04%.

To find how many miles we go back and see 15.035 = 15 7/200

Then we multiply this by 0.9 miles for the storm van

= 15 7/200 x 0.9 = 13.5315 = 13.53 miles

For the storm itself we can prove 0.53 increase of mileage

417/200 x 0.53 = 1.10505 = 1.11 miles. rounded up

5 0

4 years ago

According to the Bureau of Labor Statistics, the average weekly pay for a U.S. production worker was $441.84. Assume that availa

tensa zangetsu [6.8K]

Answer:

41.94% probability that a worker earned between $400 and $500.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 441.84, \sigma = 90$