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enot [183]
3 years ago
15

What is the best method to be use in solving quadratic equation x²+16x+63=0?​

Mathematics
1 answer:
Strike441 [17]3 years ago
7 0

Answer:

Factorization

Step-by-step explanation:

This can be easily factorized into (x+7)(x+9)=0 which can be solved for the two roots x = -7 and x = -9

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Last Wednesday, students could choose ham or turkey sandwiches for lunch. The cafeteria made 500 sandwiches in all, 270 of which
Gelneren [198K]

Answer:

54%

Step-by-step explanation:

270/500

4 0
3 years ago
Simplify the expression 224,000 X 0.00021 using scientific notation and express your answer in scientific notation.
Marizza181 [45]

Answer:4.704×10^1

Step-by-step explanation:

To simplify 224000×0.00021 in scientific notation

We get

224000×0.00021

47.04

4.704×10^1

4 0
3 years ago
two sides of a polygon are parallel line segments. what is the least number of sides the polygon could have?
Darya [45]
4 is the least the amount of sides the polygon can have
8 0
2 years ago
Read 2 more answers
It is 42 1/2 miles from Eaton to Baxter and 37 4/5 miles from Baxter to Wellington. How far is it from Eaton to Wellington if yo
mina [271]
All you need to do is add the miles from Eaton to Baxter and from Baxter to Wellington to get your answer...

42 + 37 = 79 

Now we need to add the fractions 

\frac{1}{2} +  \frac{4}{5} = ...


To add we need a common denominator. 
2 and 5 can both go into 10, so that will be a our common denominator. 
Now you have... 
\frac{5}{10} + \frac{8}{10} = \frac{14}{10}
which is equal to 1 \frac{2}{5}
add that to the 79 we got earlier ...

The toal and final answer is 80 \frac{2}{5} miles !
Hope I helped and remember to vote this as the brainliest answer ! :)
5 0
3 years ago
How do you write 22.5% as a fraction in simplest form?
Darya [45]

Answer: 9/40

Step-by-step explanation: To write a percent as a fraction in lowest terms, remember that a percent is a ratio that compares a number to 100.

So here, 22.5% can be written as the ratio 22.5 to 100 or 22.5/100.

Notice however that 22.5/100 is not in lowest terms so we need to multiply the numerator and the denominator of 22.5 by 10 in order to remove the decimal point. When we do this, we will end up with the fraction 225/1000.

The fraction 225/1000 can be written in lowest terms by dividing both the numerator and the denominator by 25 and we get the fraction 9/40.

Therefore, 22.5% can be written as the fraction 9/40.

4 0
2 years ago
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