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2 years ago

Is the ratio 2:5 and 5:2 equal

Mathematics

1 answer:

kolbaska11 [484]2 years ago

3 0

Answer:

Step-by-step explanation:

The ratio of 2 : 5 would be 2/5 or .4

The ratio of 5 : 2 would be 5/2 or 2.5

These are not equal.

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Flura [38]

Check the formula of future value of annuity ordinary (through Google)
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2 years ago

I need help on question b

NeTakaya

Answer:

B=25

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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A heavy bank-vault door is opened by the application of a force of 3.0 x 102 N directed perpendicular to the plane of the door a

gogolik [260]

For this question, we need the formula τ = F x d, and just plug the numbers in.

Given the formula τ = F x d
Where τ = torque,
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2 years ago

If the sine of an angle equals to {2}/{5}, then the tangent of the angle could be:

Leona [35]

Answer:

If the sine of an angle equals to {2}/{5}, then the tangent of the angle could be:

5. $\frac{2}{\sqrt{21} }$

Step-by-step explanation:

Imagine a triangle

The sine of an angle is equal to the length of the opposite leg over the hypotenuse.
HINT: SOHCAHTOA

To find the adjacent leg (a):

Using the pythagorean theorem: $a^{2} + b^{2} =c^{2}$

- a and b are the lenght of the sides and c is the hypotenuse

we know one side and the hypotenuse. Therefore plugging into the formula we get:

$a^{2} + 2^{2} =5^{2}$

where a is the adjacent leg of the triangle, solving for a we get:

$a^{2} =5^{2}- 2^{2}$

$a^{2} = 21$

$a = \sqrt{21}$

To find the tangent of the angle:

Since tangent is opposite leg over the adjacent leg:

tan θ = $\frac{2}{\sqrt{21} }$

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3 years ago