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3 years ago

What is the area of the figure?10.2 in.3 in.3 in2 in.2 in.8 in.6.2 in

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

6 0

Answer:

B. 80.2

Step-by-step explanation:

The easiest way to find the area of this figure is to divide it into two rectangles.

First, let's find the area of the top rectangle.

10.2 * 3 = 30.6

The area of the top rectangle is 30.6 square in.

Now let's find the area of the second rectangle:

6.2 * 8 = 49.6

The area of the bottom rectangle is 49.6 square in.

Lastly, we have to add the areas of the two rectangles together.

30.6 + 49.6 = 80.2

The area of the entire figure is 80.2 square inches.

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What is the maximum value of the expression -5x^2 + 100x + 4,000?

Ludmilka [50]

Answer:

4500

Step-by-step explanation:

$x=10$

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3 years ago

If triangle RST and triangle XYZ are similar, which of these equations must be true?

Delicious77 [7]

Answer: A

Step-by-step explanation:

If they are similar, that means the proportions for corresponding sides will be the same.

I personally ignore the picture and use the labels of "triangle RST and triangle XYZ" that the problem gives because the XYZ picture is not lined up with the similarity it has with RST.

(A) says that side ST is corresponding with side YZ,

[] Triangle RST and triangle XYZ

-> Correct

(A) also says that side RT is corresponding with size XZ,

[] Triangle RST and triangle XYZ

-> Correct

This means that option A is the correct answer.

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2 years ago

A yearbook company was investigating whether there is a significant difference between two states in the percents of high school

Keith_Richards [23]

Answer: D. two-sample z-test for a difference in population proportions

Step-by-step explanation:

The options for the given questions were missing. The options are as follows:

A one-sample z-test for a sample proportion

B one-sample z-test for a population proportion

C two-sample z-test for a difference in sample proportions

D two-sample z-test for a difference in population proportions

Solution:

Sample proportions are used to estimate population proportions.

We are given the sample proportion of students from one state who ordered a yearbook = 70/150

We are also given the sample proportion of students from the other state who ordered a yearbook = 65/100

Since there are 2 samples and we want to investigate if there is a difference between 2 population of students,

Therefore, the most appropriate method for analyzing the results is

D. two-sample z-test for a difference in population proportions

8 0

3 years ago

An equilateral triangle forms a semi-regular tessellation with which of the following regular polygons

pickupchik [31]

A square and pentagon

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2 years ago

Which is equivalent to 104 ༡/16**? o (10)4x 4(10)3 o (10)** O (10)

Hunter-Best [27]

Answer:

I think it is the last one.

Apply radical rule

= (10^1/2)3/4x

Apply exponent rule: (a^b)^c = a^bc

= 10^1/2 . 3/4x

Simplify: 1/2 . 3/4x: 3x/8

= 10^3x/8

5 0

3 years ago

What is the area of the figure?10.2 in.3 in.3 in2 in.2 in.8 in.6.2 in​

What is the area of the figure?10.2 in.3 in.3 in2 in.2 in.8 in.6.2 in