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2 years ago

4/4 times 1/2 PLEASE HURRY ILL MARK BRAINLIEST

Mathematics

2 answers:

mars1129 [50]2 years ago

8 0

Answer: 1/2

Step-by-step explanation:4

Result in decimals: 0.5

Calculation steps:

4 × 1

4 × 2

4 ÷ 4

8 ÷ 4

Further explanation

For the problem:

= ?

Multiply all of the numerators by each other. Do the same with the denominators and form a new fraction with these values:

4 × 1

4 × 2

The Greatest Common Factor (GCF) of 4 and 8 is 4. The result can be simplified by dividing both the numerator and denominator by 4.

4 ÷ 4

8 ÷ 4

The result is:

erastovalidia [21]2 years ago

7 0

Answer:

1/2

Step-by-step explanation:

any expression divided by itself is 1

1×1/2

any expression multiplied by 1 remains the same

1/2

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In the linear equation y= 3/4x + 2 what does 2 represent?

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Answer: The y intercept.

Step-by-step explanation:

Using the form y = mx +b, m represents the slope and b is the y intercept. In the equation y = 3/4x + 2, the slope (m) = 3/4 and the y intercept (b) = 2

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2 years ago

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2 years ago

What is the math work you would do for this question?

Neko [114]

Oh my gosh I used to have that same workbook I HATED it. Anyways, the formular for volume is length x width x height, so for this rectangular prism you would multiply 4 2/5 x 10 x 3. Also it doesn’t matter which order you multiply because you should still have the same end result.

Hope this helps! If you need anymore answers from this book then ask me. My teacher made us do like 10 pages a day all school year.

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2 years ago

The automatic opening device of a military cargo parachute has been designed to open when the parachute is 185 m above the groun

agasfer [191]

Answer:

0.0193 = 1.93% probability that there is equipment damage to the payload of at least one of five independently dropped parachutes.

Step-by-step explanation:

For each parachute, there are only two possible outcomes. Either there is damage, or there is not. The probability of there being damage on a parachute is independent of any other parachute, which means that the binomial probability distribution is used to solve this question.

To find the probability of damage on a parachute, the normal distribution is used.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Probability of a parachute having damage.

The opening altitude actually has a normal distribution with mean value 185 and standard deviation 32 m, which means that $\mu = 185, \sigma = 32$

Equipment damage will occur if the parachute opens at an altitude of less than 100 m, which means that the probability of damage is the p-value of Z when X = 100. So

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

$Z = \frac{100 - 185}{32}$