All categories

3 years ago

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.

You might be interested in

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.

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