1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Levart [38]
3 years ago
8

I need help pls, trigonometry: finding sides and angles

Mathematics
1 answer:
saveliy_v [14]3 years ago
7 0

Answer:

13.  PS = 21.37

14.  68.74°

Step-by-step explanation:

13.   QS/39 = tan 28

      QS = 39 tan 28

sin 76 = QS/PS

PS sin 76 = QS

PS = QS/sin 76

    = 39 tan 28/sin 76

    = 21.37

14.    tan 47 = BD/18

        BD = 18 tan 47

        cos CDB = 7/BD

                        = 7/(18 tan 47)

         m∠CDB = arccos [7/(18 tan 47)

                        = arccos .362644...

                        =  68.74°

You might be interested in
What is the area of a rectangle with a length of 214 inches and a width of 234 inches?
Nostrana [21]

Given:

  • Length of rectangle = 214 inches.
  • Width of rectangle = 234 inches

To Find:

  • Area of rectangle.

Solution:

Using formula:

  • Area of rectangle = Length × Breadth

214 × 234

50,076 in²

Hence,

  • Area of Rectangle is <u>50,076 in</u><u>²</u>
4 0
2 years ago
Read 2 more answers
32. The price of a box of tarts is $1 cheaper than that of a loaf of bread. If 3 times the price of a
Delvig [45]

Answer: $8.60

Step-by-step explanation:

Let the price of a bread = x

Let the price of a tarts = x - 1

If 3 times the price of a loaf of bread is $29.5 more than half of the price of a box of tarts. This can be represented as:

3 × x = 1/2 × (1 - x) + 29.5

3x = 0.5 - 0.5x + 29.5

3x + 0.5x = 29.5 + 0.5

3.5x = 30

x = 30/3.5

x = 8.6

5 0
3 years ago
Graph the following points on the graphing calculator:
Lerok [7]
We are given the following coordinates: 

(0,6), (π/2, 7); (π, 8); (3π/2, 7); and (2π, 6)

If we graph these points, we will observe that the function is a cosine function. Since the function does not pass through the origin. Instead, it has a y-intercept equal to 6.  <span />
5 0
4 years ago
Read 2 more answers
Using logarithm table evaluate the<br>1.376<br>0.007​
kozerog [31]

Answer:

convert the expression for N into logs

evaluate those logs using a log table

thus determine log N

calculate antilog of log N

Thus,

log

N

=

(

647

⋅

32

×

0.00000147

8.473

×

64

)

=

log

(

647

⋅

32

)

+

log

(

0.00000147

)

−

log

(

8.473

)

−

log

(

64

)

6 0
3 years ago
The ratio of boys to girls at the beach cleanup was 7:8. If there were 42 boys, how many girls were there?
sergey [27]

Answer: 48

Step-by-step explanation:

7:8 is equal to 42:48 because its multiplying 6 to the original numbers


3 0
4 years ago
Other questions:
  • ANSWER ASAPPPPPPPPPPPPPPPP
    6·1 answer
  • 30 POINTS IF YOU ANSWER THIS PLEASE!!!!! IM GOING TO FAIL IF I DONT GET THIS ANSWERED AND PLEASE DONT LOOK IT UP ON BRAINLY OR P
    14·1 answer
  • Broccoli cost 1.50 per pound at a store. How much money does 32 ounce of broccoli cost.
    10·1 answer
  • Sarah's Shipping and Ryan's Mail Services both ship packages. Sarah's trucks
    13·1 answer
  • You visit the Grand Canyon and drop a penny off the edge of a cliff. The distance the penny will fall is 16 feet the first secon
    12·1 answer
  • ADE and ABC are similar.Which best explains why the slope of the line between points A and D is the same as the slopes between p
    15·2 answers
  • Solve the following system of equations for x:
    13·1 answer
  • If the ratio of the length of a rectangle to its width is
    9·2 answers
  • Find sequence 10 5/22, 9, 7 17/22, ___, 5 7/22
    6·1 answer
  • The heights of 2 boys are in the ratio 5:7. If the taller boy is 168cm, how tall is the shorter boy?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!