Top answers

How do I simplify the following equation x^2+5x+6

Firstly write out the question. x^2+5x+6. After this look at the constant without any x's. In this case that number is 6. Now look at the number 6 and work out the combination of factors for 6. Do this such ...
HM
Answered by Henry M. • Maths tutor
4209 Views

¿Qué te gusta hacer en tu tiempo libre?

Example response: En mi tiempo libre me gusta dibujar y ir al parque para jugar al fútbol con mis amigos. También me gusta mucho viajar porque me interesa visitar nuevos países.
KM
Answered by Kathryn M. • Spanish tutor
15391 Views

Charles Darwin found that finches from different islands had different sized beaks. Explain why one island may have finches with large short beaks and another may have finches with long thin beaks.

The differences in the birds' beaks are due to evolution and natural selection. One island may have an abundance of seeds and nuts which require a large beak to crack them open, meaning that birds with a phe...
PB
Answered by Poppy B. • Biology tutor
3221 Views

Describe with a real world example, price elasticity of demand

Price elasticity of demand (PED) is a measure used to show the responsiveness of the quantity demand of a good to a price change and is generally expressed in percentages. This is extremely important for fir...
DJ
Answered by Dylan J. • Economics tutor
19393 Views

a )John heats up 2kg of water from 20 degrees c to 80 degrees c. How much energy input did this require? b )When John weighs the water at the end, he has less than he started with. Why might this be? c) What hazards are in this experiment?

a) energy transferred = mass.specific heat capacity.temperature change, or E = m.c.theta. c is provided at 4181 joules per kg. so E = 2.4181.(80-20) = 501720 joules b) some water has evaporated off as it was...
RH
Answered by Ruth H. • Physics tutor
3731 Views