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Mathematics

2 answers:

Genrish500 [490]3 years ago

8 0

Answer:

SAS !

Step-by-step explanation:

it means Side, Angle & Side triangle and it does show that :)

AlladinOne [14]3 years ago

3 0

Answer:

SAS

Step-by-step explanation:

The information represents a Side, Angle, Side triangle

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How can we find different ways to present algebraic expressions without changing their meaning

HACTEHA [7]

Answer:

The algebraic expressions can be presents by words or equivalent expressions, so that its meaning remains same.

Step-by-step explanation:

Different ways to present algebraic expressions without changing their meaning:

1. We can describe the algebraic expressions in words so that its meaning remains same.

For example : 3x+y = Sum of 3 times of an unknown variables x and y.

2. We can describe the algebraic expressions in equivalent expressions, so that its meaning remains same.

For example : 6x+3y = 3(2x+y)

Therefore, the algebraic expressions can be presents by words or equivalent expressions, so that its meaning remains same.

4 0

3 years ago

A bank's loan officer rates applicants for credit. the ratings are normally distributed with a mean of 200 and a standard deviat

VMariaS [17]

The probability is 0.4332.

We want to find the z-scores associated with the ends of the ranges. The z-score for 200 would be 0, since it is 0 away from the mean. To find the z-score of 275 we use the formula:

$z=\frac{X-\mu}{\sigma}
\\
\\z=\frac{275-200}{50}=\frac{75}{50}=1.5$

Using a z-table (http://www.z-table.com) we can find the area under the curve to the left of 1.5 (everything less than that, so every score less than 275). This is 0.9338. However, we only want the range from the mean, 200, up to this point. This means we subtract the area to the left of 200, 0.5 (half of the data goes from the mean left), from this:

0.9338-0.5=0.4338.

6 0

4 years ago

A biologist estimates that 40% of deer in the region carry a certain type of tick. for a sample of 300 deer selectetd at random,

Ratling [72]

Let x be a discrete binomial random variable that measures the number of successes in n trials.
Let p = 0.4 be the probability of success, that is, the probability that a deer has the aforementioned type of tick.
So the probability that 124 deer or less have this type of tick is calculated using the probability formula for a binomial distribution.
P (X <= x) = sum from x = 0 to x = 124 of (300! / ((X! * (300-x)!)) * (P ^ x) * (1-p) ^ n-x.
Finally the probability is 0.7030
Below is an image with the formula used and the result