Which is a value of x if sin 60°=cos(x+10)°

Mathematics

1 answer:

IRISSAK [1]3 years ago

3 0

Solution
cos (90-60)=cos (x+10)
⇒30=x+10
x=30-10
x=20.

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Administrators at a local high school are organizing desks in the cafeteria for the junior students to use while taking a practi

stich3 [128]

Answer:

The correct option is C, i.e., .

Explanation:

It is given that the total number of students in cafeteria should be less than 264. The administrators want there to be 13 less rows than the number of desks in each row.

Let the number of desks in each row be d.

Since administrators want there to be 13 less rows than the number of desks in each row. So the number of row is d-13.

In one row the number of desks is d. So in (13-d) rows the number of number of desks is d(d-13).

Since the total number of students in cafeteria should be less than 264. So we get,

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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