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3 years ago

If a =5i + mj - 2k and b=10i+63-4k, find

Mathematics

1 answer:

Romashka [77]3 years ago

3 0

Answer:

um belo dia abençoado

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What is thirty times twenty

wariber [46]

Answer:

600

Step-by-step explanation:

How to do it in your head (secret):

3*2 = 6

add 2 zeros after the 6 since there are 2 zeros in total in this equation 20 and 30 so:

30*20 = 600

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If x = 2 and y = 14 , evaluate the following expression: x y Give your answer as a fraction in its simplest form.

LiRa [457]

Answer:

1/7

Step-by-step explanation:

x/y

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3 years ago

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Work out the size of one of the exterior angles

hodyreva [135]

Given Information :-

⠀

A polygon with 10 sides ( Decagon )

⠀

To Find :-

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The value of one of the exterior angles

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Formula Used :-

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$\qquad \diamond \: \underline{ \boxed{ \pink{ \sf Exterior ~angle = \dfrac {360^\circ}{no. ~of~sides}}}} \: \star$

⠀

Solution :-

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Putting the given values, we get,

⠀

$\sf \dashrightarrow Exterior ~angle = \dfrac{360 ^\circ}{10} \: \: \\ \\ \\ \sf \dashrightarrow Exterior ~angle = \frac{36 \cancel{0}^\circ}{ \cancel{10}} \: \: \\ \\ \\ \sf \dashrightarrow Exterior ~angle = \underline{ \boxed{ \frak{ \red{36^\circ}}}} \: \star \\ \\$

Thus, the value of the exterior angles of a Decagon is 36°.

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$\underline{ \rule{227pt}{2pt}} \\ \\$

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2 years ago

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Scrat [10]

Answer:

x= 4

Step-by-step explanation:

The two triangles are similar so the ratios of both should be the same. Triangle DEF is 15 times bigger than triangle ABC so 60 divided by 15 is 4. Moral of the story 4 equals X

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3 years ago