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
wariber [46]
3 years ago
5

Please help! It would be very much appreciated :)

Mathematics
1 answer:
Trava [24]3 years ago
7 0

Answer:

  1. Cos 45=6/x

x=6/cos 45=6√2

x=6√2

tan 45=y/6

y=tan45 ×6

y=6

2.

sin 60=y/10

y=sin60×10

y=5√3

again

Cos 60=x/10

x=½×10

x=5

3.

Sin 45=x/5

x=1/√2×5 or

x=5√2/2

again

y=5√2/2 or 5/√2[base angle of right angled isosceles triangle]

4.

Sin 30=8/x

½×x=8

x=8*2

x=16

again

cos 30= y/x

√3/2×16=y

y=8√3

5.

sin 60=7/x

x=7/[√3/2]

x=14/√3 or 14√3/3

again

cos 60=y/x

½×14√3/3=y

7√3/2=y

y=7√3/2

<u>N</u><u>o</u><u>t</u><u>e</u><u>:</u>

<u>S</u><u>i</u><u>n</u><u> </u><u>a</u><u>n</u><u>g</u><u>l</u><u>e</u><u> </u><u>=</u><u>p</u><u>e</u><u>r</u><u>p</u><u>e</u><u>n</u><u>d</u><u>i</u><u>c</u><u>u</u><u>l</u><u>a</u><u>r</u><u>/</u><u>h</u><u>y</u><u>p</u><u>o</u><u>t</u><u>e</u><u>n</u><u>u</u><u>s</u><u>e</u>

<u>C</u><u>o</u><u>s</u><u> </u><u>a</u><u>n</u><u>g</u><u>l</u><u>e</u><u> </u><u>=</u><u>b</u><u>a</u><u>s</u><u>e</u><u>/</u><u>h</u><u>y</u><u>p</u><u>o</u><u>t</u><u>e</u><u>n</u><u>u</u><u>s</u><u>e</u>

<u>T</u><u>a</u><u>n</u><u> </u><u>a</u><u>n</u><u>g</u><u>l</u><u>e</u><u> </u><u>=</u><u>p</u><u>e</u><u>r</u><u>p</u><u>e</u><u>n</u><u>d</u><u>i</u><u>c</u><u>u</u><u>l</u><u>a</u><u>r</u><u> </u><u>/</u><u>b</u><u>a</u><u>s</u><u>e</u>

You might be interested in
AT YOUR NEW JOB AT THE COFFEE
alukav5142 [94]

Answer:

106 : 84

Step-by-step explanation:

53 : 42 = 106 : 84

The ratio is already in lowest terms so found I an equivalent ratio by multiplying both terms by 2.

7 0
3 years ago
Read 2 more answers
Answer numbers 16-18
lana66690 [7]
Number 16- 216
number 17- 180
number 18- 252
4 0
3 years ago
550 is 5% of what number? Which statements are correct? Check all that apply. The answer will be smaller than 550. The answer wi
OLga [1]

Answer:

the answer is b,c,d,e

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2 more than the product of 2 and x
il63 [147K]

The answer is 2x + 2

6 0
3 years ago
I need help anyone??? please??????
olchik [2.2K]
The principal square root of 49 is just 7 because 7 times 7 is 49.
It can not be -7 because a principle square root cannot be negative.

\sf\ Answer: A)\ 7

\sf\ \sqrt{49}=\\\±7\\\\-7\ and\ 7\ are\ both\ square\ roots\ of\ 49\ because\ 7\times7=49\ and\\\\-7\times-7=49.\\\\But\ as\ I\ said\ before,\ principal\ square\ roots\ can\ not\ be\ negative\\\\numbers.\\\\That\ will\ eliminate\ any\ options\ with\ -7.\\\\So\ the\ only\ principal\ square\ root\ that\ we\ have\ is\ {\boxed{7}
8 0
3 years ago
Read 2 more answers
Other questions:
  • Mr. Smith uses the following average for grading Pre - Cal classes: test are 45% of the grade, quizzes count 25%, homework is 15
    10·1 answer
  • 43 miles into feet<br><br><br> 17 years into minutes<br><br><br> show all work
    11·1 answer
  • PLEASE HELP!!!!!! WILL MARK BRAINLIEST!! What is the probability that two "face" cards are drawn from a standard deck of 52 card
    7·2 answers
  • Based on the graph above, the solution to the system if equations is (____,___)
    8·1 answer
  • Whats the cube root of 3375 by prime factorization
    8·2 answers
  • 1. If 4.75x = 12.35, what is the value of x?
    15·1 answer
  • A piece of paint cost $400. There is a 25% mark-<br> up. What is the selling price of the painting?
    5·1 answer
  • Ms. A. Lee is an advisor for the Walton College of Business and she is often asked by students what they should major in if they
    11·1 answer
  • Roberto had $88, which is eleven times as much money as Bianca had. How
    11·1 answer
  • Fiona recorded the mean math exam grade for six random samples of students from the entire seventh-grade class. Sample Sample Me
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!