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nadezda [96]
3 years ago
6

Need help, please! Solve the quadratic equation using factoring. Show your work. 30x^2-16x-10=0

Mathematics
1 answer:
Vladimir [108]3 years ago
8 0
This is going to be your answer.

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This Stem-and-Leaf Plot represents the heights of the students on Ralph’s basketball team. One student’s height is missing from
kompoz [17]

Using the mean of the data-set, it is found that the missing height in the stem-and-leaf plot is given by:

D. 65 in.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, following the key of the stem-and-left plot, there are 8 observations, given as follows:

54, 55, 56, 61, 63, 64, 70 and the missing value x.

The mean is of 61, hence:

61 = \frac{54 + 55 + 56 + 61 + 63 + 64 + 70 + x}{8}

423 + x = 61 x 8

x = 65.

Hence option D is correct.

More can be learned about the mean of a data-set at brainly.com/question/24628525

#SPJ1

6 0
2 years ago
Write a variable expression for each statement
brilliants [131]

Answer:

Step-by-step explanation:

I'm not doing all of them, so you can learn.

Here's the first three:

9. 6-12x

10. (and 11? dude u need to rephrase) x/(5(x+2))

6 0
3 years ago
Mini 12 oz - $1.20
stich3 [128]
So what u want to do is find out how much it is per oz, so Mini is $.10 per oz, family is $.08 per oz, and economy is $.09 per oz

Family 28oz is the best buy
7 0
3 years ago
Hello, I am a little confused about this problem. Would you mind helping me?
mixas84 [53]

Given the following expression:

(8q^9)^{-4}

To simplify the expression, we will use the following rules:

\begin{gathered} (a^m)^n=a^{m*n} \\ a^{-m}=\frac{1}{a^m} \end{gathered}

So, the given expression will be as follows:

(8q^9)^{-4}=8^{-4}*q^{9*-4}=\frac{1}{8^4}q^{-36}=\frac{1}{4096}q^{-36}

So, the answer will be the second option

7 0
2 years ago
A factory makes 394 motorcycles each week. If there are 52 weeks in a year, how many motorcycles will they make in a year
BigorU [14]
The answer is 7.57 of what they make for each year
5 0
3 years ago
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