lynx7

you made a mistake the total is out of 30 because 6+12+8+4=30 so it is 26/30

you need to use the pythagoras therom formula: c^2=a^2+b^2

on the right angled traingle which has a base of 2 and a height of 5

s^2=2^2+5^2

s^2=4+25

s^2=29

s=√29

s=5.4cm (nearest tenth)

translation to english from portuguese:

suppose that the equation: y 985.3 + 0.74 X represents the adjusted straight line of a metal bar and its length, based on in this equation, estimate the length value when the temperature equals 41 ° C.

area of rectangle=length*width

area of rectangle=3*2

area of rectangle=6m^2

area of circle=π*r^2

area of circle=π*3^2

area of circle=π*9

area of circle=28.27433388m^2

area of circle - area of rectangle= area around the outside of the shed

28.27433388m^2-6m^2=22.27433388m^2

\(\begin{align*} \frac{1}{10}[(1\cdot 2)&+(1\cdot 3)+(1\cdot 4)+(1\cdot 5)+{}\\ &(2\cdot 3)+(2\cdot 4)+(2\cdot 5)+(3\cdot 4)+(3\cdot 5)+(4\cdot 5)]\\ &\qquad\qquad\qquad\qquad=\frac{85}{10} = \boxed{8.5}. \end{align*}\)

4) volume of sphere: 4/3 * 3.14 * 10^3

volume of sphere: 4/3 * 3.14 * 1000

volume of sphere: 4186.67

6) 45cm^2 * 2 = 90cm^2 new area

7) 3 : 2

3^3 : 2^3

9 : 6

5) 42 * 6.5 = 273 new perimeter

1.Hearing opera music

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