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bekas [8.4K]
2 years ago
11

Who can help me with this for algebra 2

Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
7 0
The answer to this equation is

x= 1, -3
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What's the answer ?????
ra1l [238]
1/2 because it's 2 times smaller
7 0
3 years ago
$46 shoes; 2.9% tax some one please help me and i'm new in this site
ZanzabumX [31]
If you would like to know the value of the 2.9% tax, you can calculate this using the following steps:

2.9% tax of $46 shoes = 2.9% * 46 = 2.9/100 * 46 = $1.334

If you would like to know what is the whole price you have to pay for the shoes (including the tax), you have to add $46 and $1.334:

$46 + $1.334 = $47.334
8 0
3 years ago
Simplify the product of the binomial. (5t+4)^2
krek1111 [17]
The answer would be 25t^2 + 40t + 16
8 0
3 years ago
Read 2 more answers
The distribution of the average amount of sleep per night gotten by college students is roughly bell-shaped with mean 412 minute
kirza4 [7]

Answer:

P(X

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(412,68)  

Where \mu=412 and \sigma=68

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard table or excel and we got:

P(z

4 0
3 years ago
-4r-8(r-6)=7(5r-1)+8
KATRIN_1 [288]

Answer:

r = 1

Step-by-step explanation:

In this question, we have to solve for the vallue of "r". We will use the distributive property shown below to ease our process.

Distributive Property:

a(b+c) = ab + ac

Now, lets solve this:

-4r-8(r-6)=7(5r-1)+8\\-4r-8r+48=35r-7+8\\-12r+48=35r+1\\48-1=35r+12r\\47=47r\\r=\frac{47}{47}\\r=1

As we have seen the value of r is "1"

6 0
3 years ago
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