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2 years ago

If 2+3=1 , 4+5=63 , 6+8=48 , then ,3+7=??

Mathematics

1 answer:

SpyIntel [72]2 years ago

6 0

Answer:

3+7 = 3

Step-by-step explanation:

Given question is based on reasoning:

2+3=1

2+3 = 5 and 5 × (2) first digit = 10, digit place reverse = 01

Similarly

4+5=63

4+5 = 9 and 9 × (4) first digit = 36, digit place reverse = 63

6+8=48

6+8 = 14 and 14 × (6) first digit = 84, digit place reverse = 48

So,

3+7=

3+7 = 10 and 10 × (3) first digit = 30, digit place reverse = 03

Therefore, 3+7 = 3

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A 35 foot rope is cut into two pieces with one section 6 times as long as the other section, how is the shorter piece?

guajiro [1.7K]

-------------------------------------------
Define x:
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Let the shorter piece be x.
Shorter piece = x
Longer piece = 6x

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Construct equation:
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x +6x =35
7x = 35
x =5

-------------------------------------------
Find the length:
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Shorter length = x = 5 feet
Larger length = 6x = 6(5) = 30 feet

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Answer: The shorter piece is 5 feet.
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3 years ago

Explain WHAT WOULD HAPPEN TO motion IF friction DID NDT EXIST.

MA_775_DIABLO [31]

Answer:

If friction did not exist, it would be hard for us to slow down in running, or putting breaks on a car, and more!

If friction did not exist, your car will slide down the road even if you try your best to put the brakes on a car. Friction is a very important force to slow down things that are moving very fast

Step-by-step explanation:

Hoped this helped.

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2 years ago

Explain how you can use a digram to determine the start time when the end time is 9:00 A.M. and the elapsed time is 26 minutes.

alexgriva [62]

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3 years ago

The weights of adult male birds of a certain species are normally distributed with a mean of 27.5 grams and a standard deviation

Korvikt [17]

Answer:

The z-score of a male bird of this species with a weight of 29.37 grams is 1.7.

Step-by-step explanation:

We are given that the weights of adult male birds of a certain species are normally distributed with a mean of 27.5 grams and a standard deviation of 1.1 grams.

Let X = weights of adult male birds of a certain species

So, X ~ Normal( $\mu=27.5,\sigma^{2} =1.1^{2}$ )

The z score probability distribution for normal distribution is given by;

Z = $\frac{ X-\mu}{\sigma } }$ ~ N(0,1)

where, $\mu$ = population mean weight = 27.5 grams

$\sigma$ = standard deviation = 1.1 grams

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

SO, the z-score of a male bird of this species with a weight of 29.37 grams is given by;

Z score = $\frac{ X-\mu}{\sigma } }$ = $\frac{ 29.37-27.5}{1.1 } }$