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
Luden [163]
4 years ago
15

If the sin 30° is 1 over 2, then the cos ____° = _____.

Mathematics
2 answers:
Ahat [919]4 years ago
8 0

Answer:

Below.

Step-by-step explanation:

(sine) sin=30=1/2

=cos [90-30]

Which means cos=60

Same as:

(cosine) cos=60=1/2 or Sin30=Cos 60=1/2

Hence, the answer is...

cos 60° = ½....

By:✨ RobloxYt ✨

kotykmax [81]4 years ago
6 0

Step-by-step explanation:

The sine of an angle is the same as the cosine of its complement.

If sin 30° = ½, then cos 60° = ½.

You might be interested in
the length of a rectangle is 10m more than its width. if the perimeter of rectangle is 80m find the dimensions of the rectangle
ad-work [718]
The answers are 15 and 25

7 0
4 years ago
The table shows data from a survey about the number of times families eat at restaurants during a week. The families are either
Anna11 [10]

Solution:

1. Rome

Minimum=0

Maximum=16

Q_{1}=3, Q_{3}=13, {\text{IQR}=Q_{3}-Q_{1}=13-3=10,

Median ,Q_{2}=8.5

Mean = 8

Standard Deviation(σ)=5.4

As, difference between , Maximum -Mean =Mean - Minimum=8

So, Mean will Worthy description to find the center of Data set, given about Rome.

2. New York

Minimum=1

Maximum=20

Q_{1}=4.5, Q_{3}=6, {\text{IQR}=Q_{3}-Q_{1}=6-4.5=1.5,

Median ,Q_{2}=5.5

Mean = 7.25

Standard Deviation(σ)=6.1

As, for New york , Mean is not the mid value, that is difference between Mean and Minimum is not same as Maximum and Mean.

As, you can see , the three Quartiles , Q_{1},Q_{2},Q_{3} are very close to each other, it means , other data values are quite apart from each other. So, Mean will not  appropriately describe the given data.So, in this case Median will suitable to find the center.

Option (B): The Rome data center is best described by the mean. The New York data center is best described by the median.

6 0
3 years ago
What is easy-access credit?
lana [24]

Answer:

b ) a loan given for a short period of time that is not dependent on credit history

Step-by-step explanation:

:) enjoy

3 0
3 years ago
Read 2 more answers
What is the height of a triangle that has an area of 60 yd^2 and a base with a length of 12 yd
andriy [413]
Area = (base * height) / 2
60 = (12 * h) / 2
120 = 12h
h=10 yards
5 0
3 years ago
What is the value of the expression below when x<br> = 4 and y = 4?<br> 3x + 7y
Diano4ka-milaya [45]

Answer:

40

Step-by-step explanation:

3x + 7y

Replace the letters with said numbers,

3(4) + 7(4)

Multiply,

12 + 28

And add!

40

7 0
3 years ago
Read 2 more answers
Other questions:
  • If some one bakes 150 cookies and eats 10% how many did she eat
    5·1 answer
  • Let x have a normal distribution with mean µ = 30 and standard deviation σ = 10. calculate p(x &gt; 40), and round your answer t
    7·1 answer
  • There is a line that includes the point (1,10) and has a slope of 2. What is its equation in slope-intercept form?​
    12·2 answers
  • What is the correct classification for each given angle?
    6·2 answers
  • How are operations with radical expressions similar to operations with variables
    15·1 answer
  • What type of counting problem is this? If Jackson is at the store and can buy any 3 fruit (the store sells apples, oranges, pear
    6·2 answers
  • What is 16 divided by 845?
    7·2 answers
  • Which verbal expression best represents the algebraic expression 6n + 5?
    12·2 answers
  • Can anyone answer this please?
    7·2 answers
  • Solve the following inequalities for x .-5x + 9 &lt; 64 *
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!