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solong [7]
3 years ago
10

According to the 2010 census, the state of Oregon has a population of 40 people per square mile. If a county in Oregon measured

75 miles by 30 miles, then what is the expected population of the county?
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
7 0

Answer:

90000

Step-by-step explanation:

To get the total area multiply 75 by 30 then to get the number of people multiply the product by 40. 75*30*40=90000

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Please Help...........
klasskru [66]
I believe the answer might be:
x = 28/19

Steps:
Expand
3(5 - x)/2 - 4(3 + 2x)/5

-3x + 15 - 8x + 12
------------ -----------
2 5

Find the LCD for the equation above:
(15-3x) * 5 - (12+8x) * 2
------------- --------------
10 10

Now we combine them since the denominators are equal:
5(-3+15) - 2(8x+12)
--------------------------
10

We expand above:
-31x+51
-----------
10
6 0
3 years ago
Which of the following are solutions to the equation below? Check all that apply. 4x2 + 4x + 1 = 9​
Vilka [71]

Answer:

4x^2 + 4x + 1=9

4x^2 + 4x - 8=0

Dividing both sides by 4

x^2 + x -2=0

It can be written as

x^2 + 2x - x - 2=0

x(x+2) -1(x+2)=0

taking (x+2) as common on LHS

Then, (x+2)(x-1)=0

Now first equate x+2=0  ie x=-2

then                 x-1=0 ie x=1

Therefore, x has two values(roots)

that is -2,1

4 0
3 years ago
Solve the equation 16x^3+16x^2-x-1=0 given that -1/4 is a zero of f(x)= 16x^3+16x^2-x-1. Solution set is ___
Keith_Richards [23]

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

8 0
3 years ago
A 60 kg dog requires fluids at 50 mL/kg over 24 hours. Using a 10 gtt/mL set how many gtts/min will you set?
Ann [662]

50\times 10 = 500
60 \times 24 = 1400 \: mins
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3 0
3 years ago
Please help
Maurinko [17]

Answer:

704 square yards

Step-by-step explanation:

10 * 19 = 190

190 * 2 = 380

12 * 19 = 228

12 / 2 = 6

6 * 8 = 48

48 * 2 = 96

96 + 228 + 380 = <em><u>704</u></em>

<em><u></u></em>

<em><u>Hope this helped! Have a nice day, and plz mark as brainliest if correct!!!</u></em>

<em><u>-Lil G</u></em>

7 0
3 years ago
Read 2 more answers
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