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nevsk [136]
3 years ago
8

pete's pools installs rectangular pools that are all 10 feet wide. the length can vary from 10 feet to 30 feet. the company inst

alled a pool with a perimeter of 76 feet. what was the length of the pool ?
Mathematics
1 answer:
Wittaler [7]3 years ago
3 0
The length is 28 because 76 -10x2 is 56 divided by 2 is 28
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Item 8 Solve for x. Use the quadratic formula. 2x2−5x−9=0 Enter the solutions, in simplified radical form, in the boxes.
Lubov Fominskaja [6]

Answer:

5+√97/4

Also 5-√97/4

Step-by-step explanation:

The Quadratic formula is x=-b+-√b^2-4ac/2a

This means that we should plug the values for A B AND C into the formula

We can work out that

<u><em>A = 2</em></u>

<u><em>B=-5</em></u>

<u><em>C=-9</em></u>

Once we have put these into the formula we get

5+√97/4 (all over 4) aka 3.71

Also 5-√97/4 (all over 4) aka -1.21

7 0
3 years ago
Read 2 more answers
Polygon A is a square. Polygon B has four more sides than polygon A. What type of polygon is B?
Assoli18 [71]

Answer:

OCTAGON for question 1

Step-by-step explanation:

that's it an eight sided polygon is an octagon

8 0
3 years ago
Read 2 more answers
Can someone help me????
SpyIntel [72]
Lemme think bout it....no
5 0
3 years ago
Need help wasn't there for a lesson
77julia77 [94]
These are linear equations, so there is x and y. On number one the first thing they plotted was (3,8) so in a function table the 3 would be on the left side and the 8 would be on the right side. I’ll leave you with the rule of the first one, if the rule is times 2 plus to the how would you put it in a function table.

The first thing that you would put into the function table on the first question would be as I said earlier 3 and then 8. The rule is the rate. Using a function table will be very helpful (That’s why I keep mentioning one). Let me know if this helps.
6 0
3 years ago
What is the value of x
Nezavi [6.7K]

\tan(16)  =  \frac{8.3}{x}  \\

0.2867453858 =  \frac{8.3}{x}  \\

Thus :

x =  \frac{8 .3}{0.2867453858}  \\

x = 28.9455398797

Thus :

x = 28.9

3 0
2 years ago
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