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lubasha [3.4K]
2 years ago
12

Andre sets up a rain gauge to measure rainfall in his backyard. On Tuesday, it rains off and on all day, use the graph to determ

ine how much total rain fell on Tuesday
Mathematics
1 answer:
vaieri [72.5K]2 years ago
5 0

Answer:You will need to identify first

Step-by-step explanation:

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If you bought a tv for $350 and you bought it at a 10% discount off what was the original price
blagie [28]
(not sure if I'm right) Using this Formula Part/Whole = %/100

$350/Original Price = 10%/100
cross multiply 
10w = 35,000
divide by 10 on both sides 
W = $3,500 
(seems real high so I'm not sure)

6 0
3 years ago
Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat
yulyashka [42]

Answer:

The population will reach 34,200 in February of 2146.

Step-by-step explanation:

Population in t years after 2012 is given by:

P(t) = 0.8t^{2} + 6t + 19000

In what month and year will the population reach 34,200?

We have to find t for which P(t) = 34200. So

P(t) = 0.8t^{2} + 6t + 19000

0.8t^{2} + 6t + 19000 = 34200

0.8t^{2} + 6t - 15200 = 0

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this question:

0.8t^{2} + 6t - 15200 = 0

So a = 0.8, b = 6, c = -15200

Then

\bigtriangleup = 6^{2} - 4*0.8*(-15100) = 48356

t_{1} = \frac{-6 + \sqrt{48356}}{2*0.8} = 134.14

t_{2} = \frac{-6 - \sqrt{48356}}{2*0.8} = -141.64

We only take the positive value.

134 years after 2012.

.14 of an year is 0.14*365 = 51.1. The 51st day of a year happens in February.

So the population will reach 34,200 in February of 2146.

6 0
2 years ago
Help me with answers plz
pav-90 [236]
3÷8+1÷8-(9÷8+5÷8) =3÷8+1÷8-(14÷8) =3÷8+1÷8-14÷8 =(3+1-14)÷8 =-10÷8 =-5÷4 =-1.25
3 0
2 years ago
Solve 12.7 ≥ s − 5.3 Graph the solution.
Julli [10]
Hello!

I dont a graph to show you but I will solve the answer.

12.7 + 5.3 <span>≥ s

18 </span><span>≥ s

s </span><span>≤ 18
</span><span>That is your answer.

Enjoy.
~Isabella

</span>
8 0
3 years ago
PLEASE HELP WITH THIS I GOT 5 MIN LEFT GIVING ALL MY POINTS AND BRAINLIEST PLEASE COME!!!!!!!
yawa3891 [41]
What's the question?
3 0
3 years ago
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