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2 years ago

10

4/8 - 3/10 pa answer ulii

2 answers:

marysya [2.9K]2 years ago

8 0

Answer:

1/5

Step-by-step explanation:

4/8-3/10=1/5

loris [4]2 years ago

8 0

So basically 4/8 -3/10 you first cross multiple the denominators so 8 multiplied by 10 and 3 and 10 multiplied by 8 and 4 so we have a total of 80 which is our denominator and 40-24 which will give us 16/80 then we simplify until we get 1/5 it’s a long way but very easy to understand

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Rainbow [258]

Answer:

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b) The angle ACD is approximately 34.5º.

Step-by-step explanation:

a) Since $AB \perp BC$ , the length of segment $AC$ is determined by Pythagorean Theorem, that is:

$AC = \sqrt{(5\,cm)^{2}+(3\,cm)^{2}}$

$AC \approx 5.831\,cm$

The length of segment AC is approximately 5.831 centimeters.

b) Since $AB \perp BC \perp AD$ , the length of segment $AD$ is determined by this Pythagorean identity:

$AD = \sqrt{(3\,cm)^{2}+(5\,cm)^{2}+(4\,cm)^{2}}$

$AD \approx 7.071\,cm$

The angle ACD is determined by the following trigonometric expression:

$\cos C = \frac{AC}{CD}$

$\cos C = \frac{5.831\,cm}{7.071\,cm}$

$\cos C = 0.825$

$C = \cos^{-1} 0.825$

$C \approx 34.448^{\circ}$

The angle ACD is approximately 34.448º.

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3 years ago

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Answer:

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Step-by-step explanation:

We are given that

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nataly862011 [7]

Answer:

Exact Form:

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Decimal Form:

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Step-by-step explanation:

<em>Reduce the expression, if possible, by cancelling the common factors.</em>

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