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Alex73 [517]
2 years ago
13

Use quadratic regression to find the

Mathematics
1 answer:
Travka [436]2 years ago
7 0

Answer:

y=  -x^{2} -2x+15

Step-by-step explanation:

 

y=  -x^{2} -2x+15

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How much should you put in an investment paying a simple interest rate of​ 5% if you needed​ $4000 in eighteen​ mont
Eddi Din [679]

now, there are 12 months in a year, so 18 months is really 18/12 of a year, thus

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$4000\\ P=\textit{original amount deposited}\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=years\to \frac{18}{12}\dotfill &\frac{3}{2} \end{cases} \\\\\\ 4000=P[1+(0.05)(\frac{3}{2})]\implies 4000=P(1.075) \\\\\\ \cfrac{4000}{1.075}=P\implies 3720.93\approx P

6 0
2 years ago
Renata and her family go through an average of more than 15 cans of sparkling water each day. They buy cases of 24 cans at $3.50
DENIUS [597]

Answer:

The inequality required to express the above condition is   x     ≥    18.75

Step-by-step explanation:

Renata and her family go through an average of more than 15 cans of sparkling water each day.

The number of cases of 24 cans of sparkling water.

We can take the number of cases to be x.

Each case is said to cost $3.50.

An inequality for the number of cases that Renata's family go through in 24 days can be written as

       x ≥ \frac{15 \times 30}{24}           ⇒     x    ≥   \frac{450}{24}         ⇒   x ≥     18.75

Therefore the inequality required to express the above condition is

x     ≥    18.75

3 0
3 years ago
What is 12 more than 3 times a number?
sleet_krkn [62]

Answer:

I think it's 4 times 3 is the more number for 12.

4 0
3 years ago
Read 2 more answers
Help look at screenshot
ipn [44]
1/3 is the correct answer simplified
4 0
2 years ago
Read 2 more answers
2. Which expression is equivalent to 5-(-8)?<br> A (-5) + 8 B 8+5<br> C 8-5<br> D 5-8
ANTONII [103]
It’s 8-5
Reciprocal is flipped
8 0
3 years ago
Read 2 more answers
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