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vampirchik [111]
3 years ago
13

From the top of a building, 40 feet above the ground, a construction worker locates a rock at a 12° angle of depression. How far

is the rock from the building? ​
Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
6 0

Answer:

188 m

Step-by-step explanation:

\tan(12)  =  \frac{40}{x}  \\ x =  \frac{40}{ \tan(12) }  \\ x = 188

UNO [17]3 years ago
5 0

Answer:

I think that the other answer is WRONG

tan(12) = \frac{x}{40}

x = tan(12)*40 = 8.5

Step-by-step explanation:

\frac{sin\left(78\right)}{40}=\frac{sin\left(12\right)}{x} = 8.5

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The variable overhead rate variance can be defined as which of the​ following? A. Standard rate x​ (Actual hours​ - Standard hou
Katena32 [7]

Answer:

Step-by-step explanation:

In costing analysis, direct materials, labour and direct expenses aggregate to prime cost.  Alternately, the aggregate of indirect materials, labour  and expenses is termed as overhead.  Overheads are classified into fixed and variable.

Variable overhead is one which varies directly as per number of units produced

Variable overhead rate variance = actual costs -(AHxSR)

= Actual costs - (Actual hours x std rate)

= Actual hours x actual rate - actual hours  x std rate

Hence option D is right.

5 0
3 years ago
Туре or Movie
NeX [460]

Answer:  3/4,  because the probability of renting a comedy is 1/4

================================================================

Explanation:

We have 36+26+30+28 = 120 students. 30 of which rented a comedy.

The probability of renting a comedy is 30/120 = (30*1)/(30*4) = 1/4

The probability of not renting a comedy is 1 - (1/4) = 4/4 - 1/4 = (4-1)/4 = 3/4.

Or you could say that 1/4 = 0.25, so 1-0.25 = 0.75 which converts to the fraction 3/4.

If you had 4 people and 1 of them rents a comedy, then the other 3 hasn't rented a comedy.

4 0
2 years ago
Solve the system by either substitution or elimination
Ratling [72]

Answer:

10 (2, -3)

11. y = -2x + 3

Step-by-step explanation:

7 0
3 years ago
you are working as an assistant to a chef the chef has 8 cups of berries and will us 2/3 cup of berries for each dessert he make
Anna11 [10]

To complete this question, all we have to do is divide the 8 cups of berries the chef has by the 2/3 cup of berries the chef will use to make each dessert. The equation we will use is as follows:

8 / \frac{2}{3} = 12.

If the statement is true, the chef will be able to make 12 desserts.


Hope this helps. :)


6 0
3 years ago
10!!POINTS “what is the range?”
yan [13]

Answer:

53

Step-by-step explanation:

3 0
3 years ago
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