This model is composed of two shapes. What is the area of this figure?

Mathematics

2 answers:

mote1985 [20]3 years ago

7 0

Measurements of 30 I believe yw

pav-90 [236]3 years ago

7 0

Answer:

69,27 cm^2

Step-by-step explanation:

area of rectangle: 10 x 3 = 30 cm^2

area of the semicircle: (5^2π)/2 ≃ 39,27 cm^2

total area = 30 + 39,27 ≃ 69,27 cm^2

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Can someone help me with this? thank you!

ExtremeBDS [4]

Answer:

242 sq. cm.

Step-by-step explanation:

Surface Area

2(LH + BH + LB)
2(10 × 3 + 7 × 3 + 10 × 7)
2(30 + 21 + 70)
2(121)
242 sq. cm.

3 0

2 years ago

If g (x) = 1/x^2 then g (x+h) - g (x)/h

nignag [31]

$\bf g(x)=\cfrac{1}{x^2}~\hspace{5em}\cfrac{g(x+h)-g(x)}{h}\implies \cfrac{\frac{1}{(x+h)^2}-\frac{1}{x^2}}{h} \\\\\\ \textit{using the LCD of }(x+h)^2(x^2)\qquad \cfrac{\frac{x^2-(x+h)^2}{(x+h)^2(x^2)}}{h}\implies \cfrac{x^2-(x+h)^2}{h(x+h)^2(x^2)} \\\\\\ \cfrac{x^2-(x^2+2xh+h^2)}{h(x+h)^2(x^2)}\implies \cfrac{\underline{x^2-x^2}-2xh-h^2}{h(x+h)^2(x^2)}\implies \cfrac{-2xh-h^2}{h(x+h)^2(x^2)}$

$\bf \cfrac{\underline{h}(-2x-h)}{\underline{h}(x+h)^2(x^2)}\implies \cfrac{-2x-h}{(x+h)^2(x^2)}\implies \cfrac{-2x-h}{(x^2+2xh+h^2)(x^2)} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \cfrac{-2x-h}{x^4+2x^3h+x^2h^2}~\hfill$