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2 years ago

5

A park is shaped like a trapezoid. It has an area of 7.2 square miles. One base is 1.2 miles, and the other base is 2.4 miles lo

ng. What is the height of the park?

1 answer:

WINSTONCH [101]2 years ago

6 0

7.2÷(1.2+2.4)=2
2÷.5=4
So the height equals 4

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In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer . Roy answered all t

katovenus [111]

Answer:

20 questions

Step-by-step explanation:

Given

$Correct \Marks= +5$

$Incorrect\ Marks= -2$

$Score\ Obtained = 30$

$Number\ of\ correct\ answers = 10$

Required

Number of questions answered

First, we need to get the total correct marks obtained by Roy

This is calculated by multiplying the correct marks by number of correct answers

$Total = +5 * 10$

$Total = +50\ marks$

Subtract this from the total scores obtained; This gives the total incorrect answer obtained by Roy

$Incorrect = Scores\ Obtained - Total$

$Incorrect = 30 - (+50)$

Open bracket

$Incorrect = 30 - 50$

$Incorrect = -20$

Divide this by -2 to get the number of incorrect answers

$Incorrect\ Answers = \frac{-20}{-2}$

$Incorrect\ Answers = 10$

Add this to the number of correct answers to give the total number of question answered

$Total = Correct\ Answers + Incorrect\ Answers$

$Total = 10 + 10$

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2 years ago

5/7^3=5(7^x)<br> Find X.<br> Thanks.

Zina [86]

Hello,

$\dfrac{5}{7^3}=5*7^x\\
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\boxed{x=-3}
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2 years ago

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Answer:

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Step-by-step explanation:

18/2=9

r=9

C=2πr=2·π·

C=2(3.14)(9)

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2 years ago