2 years ago

Use the triangles below to find the trigonometric ratios.

Mathematics

1 answer:

anzhelika [568]2 years ago

6 0

Hi I did my working on paper. You can see it in the photo.

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Evaluate using suitable identity:<br>e). 102 × 98

chubhunter [2.5K]

Step-by-step explanation:

<h3><u>★ Solution :-</u></h3>

$\sf \longmapsto 102 \times 98$

$\sf \longmapsto (a + b)(a - b) = a^2 - b^2$

Here,

a = 100
b = 2

$\sf \longmapsto (100 + 2)(100 - 2) = 100^2 - 2^2$

$\sf \longmapsto 100^2 - 2^2$

$\sf \longmapsto 10000 - 4$

$\sf \longmapsto 9996$

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3 years ago

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forsale [732]

She would take about 9 days to make 1000 cranes
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4 years ago

Need help with this please

tester [92]

To find the area of the shaded region, we must first find the percentage that is shaded.

We understand that 140 degrees out of 360 degrees are unshaded, thus there are 220 degrees shaded.

Thus the percentage is equal to $\frac{220}{360}$

Area = $\frac{220}{360} *\pi* 18^{2} = 198\pi$ square yards

Hope that helps!

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3 years ago

Evaluate − 3 w + 1 p for w = − 7 and p = 7

Jet001 [13]

Answer:

Step-by-step explanation:

substitute the value of the variable into the expression and simplify

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What is the volume of this prism?<br><br> 23.9<br> 47.7<br> 9.0<br> 4.5

anyanavicka [17]

Your answer would be 23.85 but I presume they rounded up so it would be 23.9

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3 years ago