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Nat2105 [25]
2 years ago
10

Work out the difference between 38.3 and 1.72​

Mathematics
2 answers:
deff fn [24]2 years ago
8 0
36.58 is the answer! You can also add that and 1.72 to check!

Bumek [7]2 years ago
7 0

Answer:

36.58

Step-by-step explanation:

38.3-1.72=36.58

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Can some plz help me if u do I will mark u the brainly
katovenus [111]
5 tons are 10k pounds
The movie was 1hr and 35 minutes 
7:05 PM Amar got home. He got home at 7:05 PM because the movie ended at 6:20 and it took him 45 minutes, 20+45 would be 65.

Sorry for not answering the other ones,I hope for what i answered helps.
5 0
3 years ago
A large manufacturing plant uses lightbulbs with lifetimes that are normally distributed with a mean of 1200 hours and a standar
a_sh-v [17]

Answer:

The bulbs should be replaced each 1060.5 days.

Step-by-step explanation:

Problems of normally distributed samples are 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 = 1200, \sigma = 60

How often should the bulbs be replaced so that no more than 1% burn out between replacement periods?

This is the first percentile, that is, the value of X when Z has a pvalue of 0.01. So X when Z = -2.325.

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

-2.325 = \frac{X - 1200}{60}

X - 1200 = -2.325*60

X = 1060.5

The bulbs should be replaced each 1060.5 days.

4 0
3 years ago
Which of the following is true about radiation from the sun?
bearhunter [10]
This isn't a math question and should be in the science section. However, I will still answer the question. The answer is choice B.

-------------------------------------------------------------------------------------------------------------

Here's a further breakdown

A. False. The radiation or energy from the sun can travel through air or else you wouldn't feel the sun's rays. Also, plant life wouldn't be alive without that energy going through the air.

B. True. The rays travel through a vacuum of space. If they couldn't travel through space, then the same problem comes up as in choice A: the issue of not feeling the sun's rays.

C. False. They rays have different frequencies. Because there are many wavelengths (see choice D below), this means there are different frequencies. Recall that f = 1/w where f is the frequency and w is the wavelength.

D. False. The rays are made of different wavelengths. The visible light portion is what we can see, though there is a lot more to the electromagnetic spectrum (eg: ultraviolet light). 

-------------------------------------------------------------------------------------------------------------

So once again, the answer is choice B
6 0
3 years ago
How to get the radical answer simplified
SSSSS [86.1K]
For 61 you can change it to √25/√49. √25=5 and √49=7 so it would simplify to 5/7.
3 0
3 years ago
There are 24 more students in the seventh grade class than the number g in the eighth grade class. The seventh grade class has 1
Over [174]

Answer:

160-24=g

Step-by-step explanation:

6 0
3 years ago
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