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
goldenfox [79]
3 years ago
5

Trigonometry help questions in attachment

Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0
Use the law of sines....

sin51/x=sin90/67

x=(67sin51)/sin90

x=52.07

....

tan39=(h-1.8)/44

h-1.8=44tan39

h=44tan39+1.8

h=37.4 m

You might be interested in
9. P(no more than 16 | prime
koban [17]
17 prom is the answer
7 0
2 years ago
To pass her test, Tori needs to answer at least 65% of the questions correct. If there were 60
aliina [53]
1) change 65% to a decimal = .65

2) .65 • 60 = 37.2 questions need to be right

3) since she got 42 correct, that is greater than 37.2, so she passed.

OR

1) 42/60 = 0.7

2) 0.7 to a percent = 70%

3) since she got a 70% on the test, she passed.
8 0
3 years ago
Read 2 more answers
Need help with this. Hope someone can help
ratelena [41]

First, convert all of the cm measurements to m measurements (so they are all the same unit measurement)

2000 cm = 20 m         800 cm = 8m    

<u>Total Perimeter </u>(Note that circumference of a semi-circle is 2 π r/2 = π r)

Add up the lengths of all of the outside edges. I am going to start on the top and move counter-clockwise:

40 + π (10) + 8 + 25 + 8 + (40 - 25 - 10) + 8 + 10 + 8 + π(10)

= 40 + 10π + 41 + (5) + 26 + 10π

= 112 + 20π

= 112 + 62.8

= 174.8

Answer: 174.8 m

<u>Total Area</u>

Split the picture into 5 sections (2 semi-circles, top rectangle, bottom left rectangle, and bottom right rectangle).  Find the area for each of those sections and then add their areas together to find the total area.

2 semi-circles is 1 Circle: A = π · r²  ⇒ A = π(20/2)² =  π(10)²  = 100π  ≈  314

top rectangle: A = L x w  ⇒  A = 40 x 20  = 800

bottom left rectangle: A = L x w  ⇒  A = 25 x 8  = 200

bottom right rectangle: A = L x w  ⇒  A = 10 x 8  = 80

Total = 314 + 800 + 200 + 80  = 1394

Answer: 1394 m²


3 0
3 years ago
40% of the students in a class are girls and the number of boys is 24 find the total number of students and the number of girls​
navik [9.2K]

Answer:

Girls = 16

Total students = 40

Step-by-step explanation:

40% of the students are girls, this means 60% of the students are boys.

To find the number of girls, setup a proportion using the percentages and actual number of students in the class. I am going to make the numerator the numbers that go with the girls and the denominator will be the numbers that go with the boys.

Also let's convert the percentages to decimals by moving the decimal two places left.

40% = 0.4 and 60% = 0.6

\frac{.4}{.6} =\frac{g}{24} \\.6g=9.6\\\frac{.6g}{.6} =\frac{9.6}{.6} \\g=16

Now let's find the total number of students by adding the number of girls to the number of boys.

16 + 24 = 40

7 0
1 year ago
A car travels at a speed of 55 miles per hour. How far will it travel in 5 hours?
kiruha [24]

Answer:

55*5=275

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • There is 1/4 ounce of yeast in every 2 and 1/4 teaspoons of yeast. A recipe for bread calls for 2 teaspoons of yeast. How many o
    6·1 answer
  • Is anyone good at elimination method? I will give 10 points to the person that answer the question. :)
    10·2 answers
  • Find the sum is of the geometric series 12+6+3+...
    14·1 answer
  • Erin's water bottle holds 600 millitmeters of water . Dylan's water bottle holds 1 liter of water.Whose water bottle holds more
    14·1 answer
  • Harry and Gwen ride in a bicycle race. Harry clocks 102.62 meters per minute, and Gwen clocks 101.94 meters per minute. What is
    7·2 answers
  • Universal pet house sales sells vinyl doghouses and treated lumber doghouses
    6·2 answers
  • Find the surface area of a sphere with radius of 1.5 and slant height of 6.​
    12·1 answer
  • If I have a circle that is 12 in in diameter and it's cold and a half and then folded in half again what is the area of the resu
    7·1 answer
  • Find the quadratic equation ​
    9·1 answer
  • Choose True or False for each equation for x = 6.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!