Please help!!! ill give brainliest

Mathematics

2 answers:

yawa3891 [41]3 years ago

7 0

Answer:

Step-by-step explanation:

divide the number then add on

Mekhanik [1.2K]3 years ago

3 0

You can solve this using the Quadratic Formula, x =.

a = 1, b = -12, c = 59

x = Multiply 4 and 1

x = Multiply 2 and 1

x = Multiply -4 and 59

x = Square 12

x = Subtract

x = You can't find the square root of negatives, so factor the -92 out.

x = You can find the square of 4, so take that out.

x = Split the expression into two parts

x = (+ or -) The 2 in the numerator and the 2 in the denominator cancel each other out

x = (+ or -) Divide 12 by 2

x = 6 (+ or -) Now, split the solution into the plus and minus parts.

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HELP 100 POINTS The population of a city is modeled with the function P=250,000e^0.013t, where t is the number of years since 2

erma4kov [3.2K]

Pretty difficult problem, but that’s why I’m here.
First we need to identify what we’re looking for, which is t. So now plug 450k into equation and solve for t.
450000 = 250000e^0.013t
Now to solve this, we need to remember this rule: if you take natural log of e you can remove x from exponent. And natural log of e is 1.
Basically ln(e^x) = xln(e) = 1*x
So knowing this first we need to isolate e
450000/250000 = e^0.013t
1.8 = e^0.013t
Now take natural log of both
Ln(1.8) = ln(e^0.013t)
Ln(1.8) = 0.013t*ln(e)
Ln(1.8) = 0.013t * 1
Now solve for t
Ln(1.8)/0.013 = t
T= 45.21435 years
Now just to check our work plug that into original equation which we get:
449999.94 which is basically 500k (just with an error caused by lack of decimals)
So our final solution will be in the 45th year after about 2 and a half months it will reach 450k people.

6 0

2 years ago

A school is organizing a weekend trip to a nature preserve. For each student, there is a $50 charge, which covers food and lodgi

k0ka [10]

The number of students going on the trip is 50.

Given,

A school is organizing a weekend trip to a nature preserve.

For each student, there is a $50 charge, which covers food and lodging. There is also a $25 charge per student for the bus.

The school must also pay a $15 cleaning fee for the bus.

The total cost of the weekend is $3,765.

We need to find out how many students will be going on the trip.

<h3>How do we find the number of items from the cost of each item and the total amount?</h3>