outlaw93
02.11.2020 •
Mathematics
ייייי
The incomplete table and histogram give information about the waiting time,
in minutes, experienced by patients at a dental surgery.
יוייוייי
Frequency density
a) Use the histogram to complete
the table.
b) Use the table to complete
the histogram.
Solved
Show answers
More tips
- F Food and Cooking Discover the most delicious spaghetti with these tips...
- P Philosophy How did the concept of module arise in computer science?...
- F Food and Cooking How to Cook Julienne? Recipes and Tips...
- H Health and Medicine At What Age Does a Person Stop Growing?...
- F Family and Home How to Choose a Name for Your Baby?...
- F Food and Cooking Discover the Health Benefits of Cedar Nuts...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- L Leisure and Entertainment Carving: History and Techniques for Creating Vegetable and Fruit Decorations...
- F Food and Cooking How to Make Sushi: A Step-by-Step Guide to Perfectly Rolled Delights...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
Answers on questions: Mathematics
- M Mathematics 9. práctica para la evaluación¿qué operación de dobles te puede ayudara resolver 4 + 5 = ? 1.003)@ 1 + 1 = 2puedes contar2+2 = 4hacia adelante paayudarte a suma© 3+3 = 60 4+4...
- M Mathematics (3 x _) + (2 x 2)= 3x(5+2) i don’t know how to get both sides the same...
- M Mathematics 7. msa products, inc. pays it salespersons 6% commission on all sales and 3.5% more commission on all monthly sales over $40,000. in august, giselle campagna sold $56,000 worth...
- M Mathematics What s 407×284 i need to show my work...
- M Mathematics What is the cofunction of cos 2pi/ 9...
- M Mathematics Write the first six terms of the arithmetic sequence the first terma, is3 and the common difference, d, is 7....
- M Mathematics How do you solve this problem? 3x(5+2)=...
- M Mathematics Phil is paid £240 per week each week he save one-quoter of his pay how much does he save each week...
- M Mathematics Complete the following equations using , or = 7 24/4...
- M Mathematics Vijay s sister miranda says 15/18 of the 4 hours of music is rock and hip-hop.is she correct? explain how you know?...
Ответ:
Step-by-step explanation:
Given sin 30° = 1/2, to check which of the statements is correct we will apply the Pythagoras theorem to a right angled triangle shown in the attachment.
using the SOH CAH TOA trig identity on the right angled triangle, ACD gotten from the equilateral triangle ABC;
From ΔACD, AD is the hypotenuse, DC is the opposite side to the angle 30° and AC is the adjacent.
From the diagram, sin30° = opp/hyp = DC/AD
sin30° = 1/2
Taking consideration of the acute angle 60°, the opposite side to the angle will be AC and the adjacent side will be CD.
According to CAH, cos 60° = adj/hyp = CD/AD
Given CD = 1 and AD = 2
cos60° = 1/2
This shows that sin30° = cos60° = 1/2
Note that ∠CDA and ∠DAC are angles complementary. Complementary angles are angles which have its sum to be 90°