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solve the simultaneous equations x^2 + y^2 = 5 and 3x+1=y

Substitute in y to the first equationx 2 + (3x+1) 2 = 510x 2 + 6x - 4 = 55x 2 +3x-2=0(5x-2)(x+1)x=2/5 or -1Sub these values of x into the first equationy=11/5 and -2
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Answered by Isabel D. • Maths tutor
3528 Views

What if I don't understand the unseen poem?

Good question, this has happened to us all! First of all, don't panic. Take time to read through the poem carefully a few times over. Ask yourself the following questions:1) Who is the speaker? ( not the sam...
EM
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GCSE Italian: Translate the following sentence into Italian. I live near to my school and I usually go there by bicycle. Yesterday it rained, however, so I decided to go by bus. I get on well with all my teachers, but my favourite subject is History. We

The translation would be the following: Abito vicino la mia scuola e di solito vado lì in bici. Ieri però ha piovuto, quindi ho deciso di andare in autobus. Vado d'accordo con tutti i miei professori, tuttav...
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Answered by Paola S. • Italian tutor
2696 Views

Which one of the following is the most likely consequence of an increase in the division of labour in the production of smartphones?

Decrease in the cost per unit of the phone, as specialisation means greater levels of efficiency meaning more output can be achieved with the same resources, lowering the cost of production per unit. Special...
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Answered by Oke U. • Economics tutor
7768 Views

How do I find 28% of 160?

To find more complicated percentages, we need to first be able to convert percentages into fractions. To do this, we take 100 as the denominator and the percentage as the numerator, so 28% = 28/100. Now we c...
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Answered by Aiman K. • Maths tutor
4647 Views