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I struggle with simultaneous equations, when you have a quadratic involved

Example solve the following, equation 1: x 2 +2y=9 equation 2: y=x+3In this example we have to use substitution, therefore we sub in equation 2 into 1 to get the following x 2 +2(x+3)=9 , now we must expand ...
BF
Answered by Benjamin F. • Maths tutor
3265 Views

What is the square root of (2^6 + 6^2)

2^6 = 64 (2x2x2x2x2x2)6^2= 36 (6x6) 64+36= 100 Square root of 100= 10 (10x10=100)
BS
Answered by Bella S. • Maths tutor
6357 Views

Explain one reason why the United States of America wanted a policy of isolationism after World War 1?

One reason why the USA wanted to adopt a policy of isolationism after World War 1 was the nature of the war it-self. At heart, World War 1 was a European conflict. Some politicians at the time argued that it...
JG
Answered by Justin G. • History tutor
5113 Views

What happens in prophase of mitosis?

The chromosomes condense and the nuclear membrane breaks down and the nucleolus disappears.
LO
Answered by Lucy O. • Biology tutor
3708 Views

How many moles are in 6g of carbon?

moles = mass/mrn = 6/12n= 0.5
LO
Answered by Lucy O. • Chemistry tutor
7676 Views