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3 years ago

Math help please!

1 answer:

4 0

1. The answer for the first question is 7.6 You get the answer by adding all the numbers together then dividing the answer you get by the number of items in this case there were 5 different numbers. This is how you get the mean.
2. The answer is 92.25

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Which of the choices is the variance of the sample shown here? 35,37,42,57,61,70

mezya [45]

First, you need to find the mean of all this set of numbers. You would add them all together and then divide by 6 which is 50.5.

Now you find the sample variance. Subtract each number from the mean.

15.5, 13.5, 8.5, -6.5, -10.5, -19.5 

After, you square each value and add them.

240.25+182.25+72.25+42.25+110.25+380.2... 
= 1027.5 

Now divide by 5 (because it's a sample variance) and you get 205.5.

5 0

3 years ago

Read 2 more answers

Which of the following situations describes a function? Remember you are looking for an independent variable and a dependent var

BlackZzzverrR [31]

The situation that is a function is: C. The weight of a package and the cost of postage.

<h3>What is a Function?</h3>

A function can be described as a relation whereby there can only be one exact possible output value (dependent variable) for every input value (independent variable) in the relation. This means, no input value has two different output values. However, two different input values can have the same output value.

In a function, the output value is dependent on the input value.

For example, the cost of postage (output) is dependent on the weight of a package (input).

Therefore, the situation that is a function is: C. The weight of a package and the cost of postage.

Learn more about function on:

brainly.com/question/15602982

#SPJ1

6 0

1 year ago

Are there any supplementary, vertical, or complimentary angles? If so wich ones

olga55 [171]

Supplementary: N and M

Supplementary angles: A pair of angles whose sum is equal to 180°.

Vertical: N and R

Vertical angles: A pair of angles that are made by two intersecting lines.

Complimentary: P and Q

Complimentary angles: A pair of angles whose sum is equal to 90°.

Hope this helps! :D

4 0

3 years ago

How many grams of digoxin (Lanoxin) would be required to make 25,000 tablets each containing 250 mcg of digoxin?

Galina-37 [17]

Answer:

6.25 grams would be required

Step-by-step explanation:

This problem can be solved as a rule of three problem.

In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.

When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.

When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.

Unit conversion problems, like this one, is an example of a direct relationship between measures.

First step: The first step is determining how many mcg are used to make 25,000 tablets.

The problem states that each tablet contains 250 mcg of digoxin. So:

1 tablet - 250mcg

25,000 tables - x mcg

x = 25,000*250

x = 6,250,000 mcg

25,000 tables have 6,250,000mcg

Final step: Conversion of 6,250,000mcg to g

Each g has 1,000,000 mcg. How many g are in 6,250,000mcg? So:

1g - 1,000,000 mcg

xg - 6,250,000 mcg

1,000,000x = 6,250,000

$x = \frac{6,250,000}{1,000,000}$

x = 6.25g

6.25 grams would be required

3 0

3 years ago

Two arcs of a circle are congruent if and only if their associated radii are

Drupady [299]

Answer:

False

Step-by-step explanation:

Two arcs are congruent if they have the same length and belong to the same circle or two congruent circles. if two central angles of a circle are congruent then they form congruent arcs.

6 0

3 years ago