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AysviL [449]
2 years ago
5

8(x+y)-4(x-y) What is the answer?

Mathematics
2 answers:
Harrizon [31]2 years ago
7 0
1.You would use the distributive property and multiply everything in parentheses by the number outside of them. 
     8x+8y-4x+4y
2. Then you would combine like terms
    8x+-4x=4x
    8y+4y=12y
3. The answer is 4x+12y
Gnom [1K]2 years ago
4 0
The answer is y= -x/3 if you need it in slope intercept form
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Which expression is equivalent to 2(4 + x) + 3 ?
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A wildlife preserve features a crocodile with a documented age of 24 years, believed to be one of the oldest crocodiles in capti
zysi [14]

Answer:

0.0104

Step-by-step explanation:

Given that, the lifespans of crocodiles have an approximately Normal distribution, with a mean of 18 years and a standard deviation of 2.6 years.

So, mean, \mu=18

and standard deviation, \sigma=2.6

The z-score, for any arbitrary life span of  x year, is given by

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

By using the given values, we have

z=\frac{x-18}{2.6} \cdots(i)

The z-score for x=24, by using equation (i), is

z=\frac{24-18}{2.6}=\frac{6}{2.6}=2.31

From the table, the area to the left side of z=2.31 =0.98956

But, the proportion of crocodiles have lifespans of at least 24 years

= Area to the right side of the z=2.31

=1- (Area to the left side of the z=2.31)

=1-0.98956

=0.01044

So, the proportion of crocodiles that have lifespans of at least 24 years is 0.0104.

Hence, option (a) is correct.

5 0
2 years ago
Read 2 more answers
If a woodchuck could chuck 2<br> pieces of wood every hour, how big is a beavers dam?
Nataly_w [17]

Answer:

How many hours?

Step-by-step explanation:

the answer to this is 2x

X is the number of hours and you multipy it by 2 wood

6 0
3 years ago
Hey can you help me?<br> You're the best!
elena-s [515]

Answer: Brainliest plz?

.05 more seniors chose tropical paradise than juniors choosing a night in Paris

Step-by-step explanation:

55/100=.55

105/175=.60

.60-.55=.05

3 0
3 years ago
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