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andrew-mc [135]
3 years ago
11

What is y=-5(x-3)^2+9 in standard form

Mathematics
1 answer:
sesenic [268]3 years ago
4 0

y=5x^2-6x+12 pretty sure

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Help me ill give u 11 points if u do this for me !!!
zepelin [54]

Answer:

I believe it's the third and fourth answers.

Step-by-step explanation:

3 0
3 years ago
How can you distinguish if the solution is one value, all real numbers, or no solutions?
murzikaleks [220]

Answer:

If x can only have one answer, then the solution is one value. If x can be all real numbers, then the solution is all real numbers. And if x doesn't have an answer then it has no solution.

Step-by-step explanation:

For example:

One value: 7 + x= 10 => x= 3

All real numbers: 0x=0 => x can be all real numbers

No solutions: 7x=6x => no solutions

8 0
3 years ago
Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a the past year. Suppose a sa
strojnjashka [21]

Answer:

0.015 is the approximate probability that the mean salary of the 100 players was less than $3.0 million

Step-by-step explanation:

We are given the following information in the question:

Mean, μ =$3.26 million

Standard Deviation, σ = $1.2 million 100

We assume that the distribution of salaries is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Standard error due to sampling =

\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{1.2}{\sqrt{100}} = 0.12

P(mean salary of the 100 players was less than $3.0 million)

P(x < 3) = P(z < \displaystyle\frac{3-3.26}{0.12}) = P(z < -2.167)

Calculating the value from the standard normal table we have,

P(Z < -2.167) = 0.015 \\P( x < 3) = 1.5\%

0.015 is the approximate probability that the mean salary of the 100 players was less than $3.0 million

6 0
4 years ago
What is it and why? having a good explanation would really help me. thx &lt;3
Alexeev081 [22]

Answer:

B. (-4-2)

Step-by-step explanation:

since the numerator is one you can divide -8 by the denominator of each fraction. -8/2 = -4, -8/4 = -2

(-4-2)

You have to make sure you distribute the -8 to all parts inside the parenthesis for it to be right.

i hope this helps :)

7 0
2 years ago
Randall is saving money to buy a bicycle. He has $37.80 in his saving account and saves 20% of his paper route earnings each wee
DanielleElmas [232]

Answer:

In 10 weeks he saved: 87.8-37.8= $50

so each week he saves 50/10= $5  

Step-by-step explanation:

So every week he earns 5*100 / 20= $25

8 0
3 years ago
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