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Sliva [168]
3 years ago
8

Suppose a radio station desires to estimate the proportion of the market

Mathematics
1 answer:
In-s [12.5K]3 years ago
6 0
About 3.4% large according to the coordinates
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I need help. 18 = a/2
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X is 36 hope this help
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2 years ago
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Which one of these numbers could form a triangle?
padilas [110]

Answer: non of those numbers

Step-by-step explanation:

all the numbers couldn't form a triangle

7 0
2 years ago
Micheal used addition to find 9x100 and he said the product was 90. What did he do wrong?
Vlada [557]

Answer:

He did 9 times 10 instead of 9 times 100.

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2 years ago
A rectangular parking lot must have a perimeter of 440 feet and an area of at least 8000 square feet. Describe the possible leng
tangare [24]

Answer:

The possible parking lengths are 45.96 feet and 174.031 feet

Step-by-step explanation:

Let x be the length of rectangular plot and y be the breadth of rectangular plot

A rectangular parking lot must have a perimeter of 440 feet

Perimeter of rectangular plot =2(l+b)=2(x+y)=440

2(x+y)=440

x+y=220

y=220-x

We are also given that an area of at least 8000 square feet.

So, xy \leq 8000

So,x(220-x) \leq 8000

220x-x^2 \leq 8000

So,220x-x^2 = 8000\\-x^2+220x-8000=0

General quadratic equation : ax^2+bx+c=0

Formula : x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}

x=\frac{-220 \pm \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=\frac{-220 + \sqrt{220^2-4(-1)(-8000)}}{2(-1)} , \frac{-220 - \sqrt{220^2-4(-1)(-8000)}}{2(-1)}\\x=45.96,174.031

So, The possible parking lengths are 45.96 feet and 174.031 feet

3 0
3 years ago
Find the difference between the product of 2.5 and 7.5 and the sum of2.75 and 9.55​
Brums [2.3K]

Answer:

6.45

Step-by-step explanation:

The answer=2.5*7.5-(2.75+9.55)=18.75-(12.3)=6.45

8 0
2 years ago
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