4 years ago

Please help me thank you

Mathematics

2 answers:

Vlad1618 [11]4 years ago

6 0

Search up the area formula for the shapes.Than put in the numbers.After solving dont forget the unit

frutty [35]4 years ago

5 0

Answer:

Step-by-step explanation:

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June and Sushil win some money and share it in the ratio 3:1. June gets £20 more than Sushil. How much did Sushil get?Caroline,

Murljashka [212]

Answer:

£10

Step-by-step explanation:

3:1

difference in the ratio is 2 so 2 is £20

so 1 is 20/2 =10

Sushil is 1 in the ratio an 1 x 10 is 10.

this is a brief explanation.

Hope this helps x

3 0

3 years ago

How do you solve x^2 plus 16x plus 63=0?

Alex

$x^2+ 16x + 63=0 \\ \\a=1, \ b=16 , \ c=63 \\ \\ \Delta =b^2-4ac =16^2 -4\cdot1\cdot 63 = 256 -252 = 4 \\ \\x_{1}=\frac{-b-\Delta }{2a}=\frac{-16-\sqrt{4}}{2 }=\frac{-16-2}{2}=-\frac{-18}{2}=-9 \\ \\x_{2}=\frac{-b+\Delta }{2a}=\frac{-16+\sqrt{4}}{2 }=\frac{-16+2}{2}=-\frac{-14}{2}=-7 \\ \\ \\Answer : \ x= -7 \ \ or \ \ x= -9$