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iogann1982 [59]
3 years ago
9

Two lines that Intersect and form a right angle are:

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
5 0

Answer:

perpendicular lines

Step-by-step explanation:

9966 [12]3 years ago
5 0
Answer: perpendicular lines
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11. The completion of a chemical reaction is expressed by the equation y = 300 - 4x - XP, where y is
alina1380 [7]

Answer:

The reaction ca occur at 10 degree Celsius or -14 degree Celsius.                                          

Step-by-step explanation:

We are given the following in the question:

The completion of a chemical reaction is expressed by the equation

y = 300 - 4x -x^2

where y is  the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius  at which the reaction occurs.

We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.

Putting y = 160

160 = 300 - 4x -x^2\\x^2 + 4x  - 140 = 0\\x^2 + 14x -10x -140 = 0\\x(x+14)-10(x+14)=0\\(x-10)(x+14) = 0\\(x-10) =0, (x+14) =0\\x = 10, x = -14

Thus, the reaction ca occur at 10 degree Celsius or -14 degree Celsius.

5 0
3 years ago
Suppose a designer has a palette of 8 colors to work with, and wants to design a flag with 2 vertical stripes, all different col
Vesna [10]

Answer:

For a flag with 2 different colours, there are 8 possible colours for the first colour to be chosen from and 7 possible colours (excluding the first colour already chosen) for the second colour to be chosen from, given that colours are different. Hence there are a total of 8 x 7 = 56 possible flags to be created.

Step-by-step explanation:

4 0
3 years ago
A new shopping mall records 120 total shoppers on their first day of business. Each day after that, the number of shoppers is 10
zavuch27 [327]
1,139 people.

hope this helped!! a brainliest would be appreciated ❤️
8 0
3 years ago
At the Cubs/White Sox baseball game on Sunday night, 65% of the fans were men. Another 25% were women. Of the remainder, 40% wer
strojnjashka [21]
Ok, 65% of the attendants were men, 25% were women.

That leaves us with 10% remaining. 

From those 10% .................The problem tells us that 40% are boys

So 10% * ( 0.4 ) = 4% ..............This means that 4% of the total attendants were boys.

So the distribution is

65%........men
25%........women
4%..........boys
6%...........girls

640 boys attended the game.....> this means that 4% of the total amount of people is 640.

So the number of persons that attended were

T= 100% *(640)) / 4% = 16000 people

5 0
3 years ago
Write the amount of water in each glass in milliliters.there are 1/20 liters
Liono4ka [1.6K]

Answer:

There are 50 milliliters, Hope this helps. try to figure out why on your own!

Step-by-step explanation:

5 0
3 years ago
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