4 years ago

Am i right????????????

Mathematics

1 answer:

labwork [276]4 years ago

8 0

Answer:

yes i think so

Step-by-step explanation:

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Without using trignometery tables find value of , cos70/sin20+cos57.cosec33 - 2cos60

Helen [10]

Here is some thoughts on this:

cos 57 = sin (90-57) = sin 33

so cos 57 . cosec 33 = cos 57 / sin 33 = sin 33 / sin33 = 1

2 cos 60 = 2 * 1/2 = 1

so the last 2 parts work out to 0

now we have to find cos 70 / sin 20

sin 20 = cos 70 so this comes to 1

so finally the answer is 1

4 0

3 years ago

The distance to the nearest exit door is no more than 200 feet.

rosijanka [135]

Answer:

Step-by-step explanation:

It is given that the distance of the nearest exit door is no more than the 200 feet. so this can be represented using an inequality.

since it is no more than 200 means the maximum it can be is 200 feet .

Now we are representing the distance using the variable d and we have established that the maximum value of d can be 200 so it can represented

by this inequality

$d\leq 200$