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Factorize the following expression and solve for x: X^2 +7X +10=0

Answer: (X+5)(X+2)=0 X=-5 or -2 We first look for to numbers that multiply together to make 10 (1 and 10, 2 and 5 are the only pairs) We choose the pair which also adds together to the 2nd term, 7. We can th...
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Answered by James H. • Maths tutor
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Why does the breathing rate increase during exercise?

The breathing rate increases at the start of exercise then reaches a peak and plateaus during exercise. After exercise the breathing rate will gradually fall, but this may take several minutes. During exerci...
AM
Answered by Ayushi M. • Biology tutor
11239 Views

How do I structure my essay for an exam?

Before you start planning or even thinking about your answer, READ THE QUESTION a few times and RELAX. Highlight the key words in the question, which could be a theme, a character or a quote but also look at...
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Answered by Ellen M. • English tutor
2671 Views

What is the difference between depressions and anticyclones?

Depressions are areas of low atmospheric pressure caused by rising air. The rising air causes clouds to form, typically leading to rainy weather. The presence of air fronts (boundaries between air masses of ...
LA
Answered by Lucy A. • Geography tutor
18940 Views

Express 60 as a product of its prime factors.

We divide 60 by 2 as many times as possible to get 60 = 15 x 2 x 2. 2 is a prime number so we don't need to break the 2's down any more. Instead we break 15 down. 15 doesn't divide by 2 so we try the next pr...
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Answered by Aidan H. • Maths tutor
90191 Views