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WINSTONCH [101]
3 years ago
12

Write -72=2y^2-16y-20x in standard form

Mathematics
2 answers:
zzz [600]3 years ago
8 0

y = √ 10 ( x − 2 )

y = − √ 10 ( x − 2)+ 4 + 4

kifflom [539]3 years ago
5 0

Answer:

-72=-12y-20x

Step-by-step explanation:

-72=2y^2-16y-20x

square the 2 keeping the variable

-72=4y-16y-20x

Then combine like terms in this case the numbers followed by y's

-72=-12y-20x

This is the standard form as there is nothing else you can combine to break this down any further

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The yearly expenses for the Glenn family are represented in the circle graph. The Glenn’s have just purchased a new car. A new c
tiny-mole [99]

Answer:

Car: 18.4% Other: 4.9%

Step-by-step explanation:

Glenn family yearly total expenses are

\$8,600+\$4,800+\$5,400+\$2,400+\$7,000+\$1,800=\$30,000

Other expenses are $7,000.

The payments for the new car are: $375.00 per month and the insurance for the new car $85.00 per month, in total, $460 per month. Yearly expenses for car are

\$460\cdot 12=\$5,520

Now, the expenses for the following two categories are

Car - $5,520

Other - $7,000 - $5,520 = $1,480

Percentage:

Car:

\dfrac{5,520}{30,000}\cdot 100\%=18.4\%

Other

\dfrac{1,480}{30,000}\cdot 100\%\approx 4.93\%

4 0
3 years ago
Tristan records the number of customers who visit the store each hour on a Saturday. His data representing the first seven hours
Alona [7]

Answer:

Option C is correct.

Step-by-step explanation:

We have been given total 8 data

Data is : 12,15,18,20,23,23,28

Here, n=7

Median is \frac{n+1}{2}=\frac{7+1}{2}=4th term

Median is 20.

When one data is added n=8

The median of  even number of data is  

median=\frac{\frac{n}{2}\text{th and}\frac{n}{2}+1\text{th}}{2}

Median is \frac{8}{2}\text{th and}\frac{8}{2}+1th

Median is 4\text{th and}5th

4th terms is 20

5th terms is 23

Since, median should not be change hence,

Median will be 20.

Therefore, option C is correct.

6 0
3 years ago
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A rectangular room is 4 yards long and 5 yards wide . Lucas is covering the floor with tiles that are 1 square foot . How many t
12345 [234]

Answer:

I think like 21

Step-by-step explanation:

i think it correct but if it not it okay but alaest I try my best on it

4 0
3 years ago
Each section of a race is 25 mile. the race has 4 sections.
In-s [12.5K]
The answer is to that is 100
25times 4
5 0
4 years ago
Round 34,699 to the nearest ten thousand
Rama09 [41]

Answer: <em>ANSWER: 30,000</em>

Step-by-step explanation:

<em>Okay so rounding to the ten thousand will mean you are looking at the 3 and looking behind it, the 4 is behind the 3 in 34,699 and 0-4 we round down so the nearest 10,000 is 30,000.</em>

7 0
3 years ago
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