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
lana66690 [7]
3 years ago
12

If the sin 60° is square root 3 over 2, then the cos ____° = _____.

Mathematics
1 answer:
Grace [21]3 years ago
6 0
The cos 30 degrees; square root 3 over 2
You might be interested in
Find cos x if sin x =0.82.
True [87]

Answer:

cosx= 35. Use Trignometrical identity cosx = √1−sin2x . cos x = √1−1625 = √925 = 35 to be the ...

Missing: =0.82 ‎| Must include: =0.82

Step-by-step explanation:

5 0
3 years ago
15) A, B, C, D, E and F are towns situated as follows. * A is 30 km east of D * C is 20 km east of E * F is 10 km west of B * D
harkovskaia [24]

Answer:

Option D: 20km South

Step-by-step explanation:

Lets say A = (0, 0)

  • Finding B:

A is 30km East of D which makes D = (-30, 0)

D is 10km South of F which makes F = (-30, 10)

F is 10km West of B which makes B = (-20, 10)

  • Finding E:

A is 10km North of C which makes C = (0, -10)

C is 20km East of E which makes E = (-20, -10)

  • Finding the answer:

Find distance from B = (-20, 10) to E = (-20, -10)

     1. Cancel equivalent values:

x of B = (-20) and x of E = (-20)

Remove x from equation.

     2. Solve for answer:

B = 10 and E = (-10)

Find the difference: (-10) - 10 = (-20)

Conclusion:

South translates to negative on a graph making the answer 20km South

Hope this helped :)

4 0
2 years ago
This is the question: Write down the equation of a circle with centre (0,0) and radius 5.
ANTONII [103]
You almost had it right! remember the equation of a circle is
(x - h)^2 + (y - k)^2 = r^2. the center is (h,k) and r is the radius.

(x - 0)^2 + (y - 0)^2 = 5^2

x^2 + y^2 = 25 <<< your answer

hope that helps, God bless!
3 0
3 years ago
A car dealership is having a sale in which customers pay 85% of the retail price for a new vehicle. keith is buying a vehicle wi
mash [69]
First, we calculated the discounted price which would have been paid by Keith. That is the product of 85% and $36,000.
                                      ($36,000) x (85%) = $30,600
Then, after negotiating to pay 9% off the sale price, he will only need to pay 91% of the sale price. The new price would be,
                              ($30600) x (0.91) = $27846
Thus, Keith will only need to pay $27,846. 
4 0
3 years ago
The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If
makvit [3.9K]

Answer: speed is  540 km/h

Step-by-step explanation:   Lets mark speed as v.

Because distenace is same, you can mark   6 h · 900 km/h = 10 h · v

and v = 5400 km / 10 h = 540 km/h.

Or using inverse proportions :   10 h / 6 h  =  v / 900 km/h  .

Before multiplying you turn lastproportion around :

10 h / 6 h = 600 km/ h / v   ,which gives   10 v = 6 · 900 km/h

and result is same

3 0
2 years ago
Other questions:
  • ????????????????????
    5·2 answers
  • The cost of a pair of ice skates went from $200 to $140. What is the percent change in the cost of skates?
    9·1 answer
  • When functions are defined by more than one​ equation, they are called?
    8·2 answers
  • Math order of operations
    7·1 answer
  • NEED HELP PLEASE!!!!
    9·2 answers
  • In a clinical trial of 268 subjects treated with a​ drug, 11​% of the subjects reported dizziness. The margin of error is plus o
    8·1 answer
  • Jackie made $28 babysitting last week. Her brother Joe made only 86% as much as she did. How much did joe make?
    10·2 answers
  • Write each sentence as an equation.
    5·1 answer
  • Which of the filling points can be found on the line 2x+7y=28
    7·1 answer
  • A random sample of 18 adults, chosen from the 1500 adults in the town, took a survey asking their opinion on a recent property t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!