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LD
4946 Views

Factorise 7x +14

7(x + 2)
AM
Answered by Ajay M. • Maths tutor
8847 Views

Solve these 2 equations simultaneously: 7x+y=1 and 2x squared - y=3

7x+y=1 (1) -> y= 2x 2 - 3 (3) 7x + 2x 2 -3-1=0 -> (2x-1)(x+4)=0 so 2x-1=0 so 2x=1 so x=0.5 and x+4=0 so x=-4 7(0.5)+y=1 so y=1-3.5 so y=-2.5 and 7(-4) +y=1 so -28+y=1 so y= 29 Full answer: x=0.5 y=-2.5...
HV
Answered by Hannah V. • Maths tutor
4219 Views

Simplify p^2×p^5

When you multiply two numbers that are the same with different exponents, the number can remain the same and the exponents are added. That is an exponents rule. This means that the answer is p^7
SA
Answered by Sama A. • Maths tutor
8902 Views

Explain why parents, who do not have cystic fibrosis, can have a child with cystic fibrosis.

Because cytic fibrosis is a recessive genetic disease, both parents can be carriers therefore having Ff genotypes. If a punnett square is drawn, it can be seen that offspring with the genotypes FF, Ff and ff...
SA
Answered by Sama A. • Biology tutor
4169 Views