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Setler79 [48]
2 years ago
12

We use the analysis of variance rather than the t ratio when more than two groups are involved because: _________________

Mathematics
1 answer:
Airida [17]2 years ago
4 0
Answer: B

Explanation: I’ve taken this test before and got it right :)
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The area of a trapezoid is 864cm². It has a height of 24 cm, and the length of one of its bases is 30 cm. What is the length of
Amiraneli [1.4K]

The area <em>A</em> of a trapezoid with height <em>h</em> and bases <em>b</em>₁ and <em>b</em>₂ is equal to the average of the bases times the height:

<em>A</em> = (<em>b</em>₁ + <em>b</em>₂) <em>h</em> / 2

We're given <em>A</em> = 864, <em>h</em> = 24, and one of the bases has length 30, so

864 = (<em>b</em>₁ + 30) 24 / 2

864 = (<em>b</em>₁ + 30) 12

864 = (<em>b</em>₁ + 30) 12

72 = <em>b</em>₁ + 30

<em>b</em>₁ = 42

5 0
3 years ago
Graph the linear equation
Salsk061 [2.6K]
Https://us-static.z-dn.net/files/d4c/b1c4613c4e210c04f4bcda5810cab46d.png

4 0
3 years ago
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How do you simplify this problem
vampirchik [111]
Reduce the fraction with 2
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3 years ago
Tickets to a football game cost 5$ for students and 7$ for adults. write and solve a system of equations to determine the number
stepan [7]

Answer:

x + y = 680

5x + 7y = 3914

Step-by-step explanation:

Let the amount of students who purchased tickets equal x.

Let the amount of adults who purchased tickets equal y.

If you add the amount of adults and students, you get the total amount of people:

x + y = 680

Also, to find the amount students spent on tickets, you multiply the ticket price by the amount of students to get 5x. And to find the amount adults spent on tickets, you multiply the ticket price by the amount of adults to get 7y. By adding the two amount, you get the total amount of money:

5x + 7y = 3914

These are the two equations:

x + y = 680

5x + 7y = 3914

8 0
3 years ago
PLEASE ANSWER IF YOU CAN Cameron did 4 jumping jacks on Wednesday, 9 jumping jacks on Thursday, 19 jumping jacks on Friday, and
Blizzard [7]

Answer:

My answer is 64

Step-by-step explanation:

How I got my answer is that you write the numbers and the difference of the each 2 numbers. When you see the pattern is 5, 10, 20, and it might as well be 25 because you are going to start all over with the pattern

6 0
3 years ago
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