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babunello [35]
3 years ago
14

Help please!I really need it, also show working out please30 points!​

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
6 0

Step-by-step explanation:

3/16

it's correct one

if correct make me brainliest

igor_vitrenko [27]3 years ago
5 0

Answer:

(b) 3/16

Step-by-step explanation:

Let the area of the large triangle be 1

The area of one smaller triangle out of the 4 is 1/4*1

= 1/4

So the area of the middle triangle of the larger one is 1/4..

This has been further divided into 4 triangles

The area of one such triangle is one quarter of 1/4

= 1/4 * 1/4

= 1/16

So we can infer that the area of one shaded triangle is 1/16

It asks for the area of all 3 shaded triangles

= 3 * 1/16

= 3/16

So the area of the large triangle that has been shaded is 3/16.

Hope it helps!

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Step-by-step explanation:

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MakcuM [25]

Answer:

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Step-by-step explanation:

Be the functions:

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\int\limits^1_7 {\frac{3}{x} } \, dx -\int\limits^1_7 {\frac{3}{x^{2} } } \, dx =3\int\limits^1_7 {\frac{1}{x} } \, dx -3\int\limits^1_7 {\frac{1}{x^{2} } } \, dx=3(\int\limits^1_7 {\frac{1}{x} } \, dx -\int\limits^1_7 {\frac{1}{x^{2} } } \, dx)=3[lnx-\frac{1}{x}](1-7)=3[(ln7-ln1)-(\frac{1}{7}-1)]=3[(1.945-0)-(0.1428-1)]=3*(1.945+0.8571)=3*2.8021=8.4063u^{2}

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Pavlova-9 [17]
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kiruha [24]

Answer:

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Step-by-step explanation:

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7 0
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