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KengaRu [80]
3 years ago
15

Y= 2x2 – 9x + 8 Deter sin the number of solutions for quadratic equation

Mathematics
1 answer:
artcher [175]3 years ago
7 0

Well if it is a quadratic equation, then it has 2 solutions

Do you need the solutions or just the number of solutions?

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You purchased a new car for 17,999 in the year 2015. It is now 2020 and you want to sell your car for a fair price. If your car
salantis [7]

Answer:

$7,986.25

Step-by-step explanation:

We can use the following formula to solve:

A=P(1-r)^t

<em>P = principal value</em>

<em>r = rate (decimal)</em>

<em>t = time (years)</em>

<em />

First, change 15% into a decimal:

15% -> \frac{15}{100} -> 0.15

Since 2015 and 2020 are 5 years apart, we will use 5 for t. Now, plug the values into the equation:

A=17,999(1-0.15)^5

A=7,986.25

Your car would be worth $7,986.25

8 0
3 years ago
Which expression is equivalent to the expression –6.4 – 12 + 4.6?
kow [346]

The answer is -13.8.

Hope this helps!

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The popping-times of the kernels in a certain brand of microwave popcorn are normally distributed with a mean of 150 seconds and
RSB [31]
The z-score of the data can be calculated by the formula expressed as follows:

z = ( score - mean ) / standard deviation
z = (126 - 150 ) / 11 = <span>-2.18
</span>
A z-Score<span> is a statistical </span>measurement<span> of a </span>score's<span> relationship to the mean in a group of </span>scores<span>. A </span>Z-score<span> of 0 means the </span>score<span> is the same as the mean.</span><span>

</span>
6 0
3 years ago
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PLEASE HELP IM ON A TEST RIGHT NOW: Twelve boxes of golf balls cost $30 and two boxes of hockey pucks cost $45. The cost per box
vlada-n [284]

Answer:362.5

Step-by-step explanation: thank me later

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Serhud [2]

Answer:

I don't know what you think about it is not going to be a great day of school

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3 years ago
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