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
satela [25.4K]
4 years ago
10

How do I begin this equation

Mathematics
1 answer:
alex41 [277]4 years ago
5 0
Trigonometry:
We know that   csc x = 1 / sin x    and π = 180°;
sin 5π/ 6 = sin 150° = 1/2
csc 2π / 3 = 1 / sin 120° = 1 / √3/2 = 2 / √3
Finally:
4 · 1/2 + 7 · ( 2 / √3 )² = 2 + 7 · 4/3 = 
= 2 + 28/3 = 2 + 9 1/3 =  11  1/3
You might be interested in
Find the measure of the arc or angle indicated. Part 1. NO LINKS.​
andreev551 [17]

Answer:

Step-by-step explanation:

1)

O = center of circle (origin)

we know that the angle at the center of the circle ∠ ROS will be

180= 2(31) + ∠x

180-62 = ∠x

118° = ∠x

The supplemental angle to the 118° will be 62°

62° is the interior angle to  arc QR , so

arc QR is also 62°

3)

b/c the intercepted arc YZ = 2* 68=136

then 136+125+? = 360

? = 99°

arc ZX = 99°

5)

O= center point

we are given the two arcs  120 and 70 for both of these we know that the

interior angles will be the same.  ∠JOX  has a central angle of 120 , then

b/c triangle JOX is an isosceles,  we know that the two angles J and X of

the triangle JOX will be 1/2 of  60 , or 30 each

also for    

also ∠XOY has an interior angle of 70 so the two angle at X and Y will be 1/2 of 110 , or 55°

now add 55+30 to find X for box XYZJ

85° = ∠X  

5 0
4 years ago
Read 2 more answers
When Kimchi is made, it is initially fermented for the first 3 days at a temperature of 70 degrees Fahrenheit and then immediate
svet-max [94.6K]

The given temperatures of 70 °F, 50 °F, and 35 °F, at the given 3, 3, and

6 days give the following step function;

\begin{cases}f(x) = 70^{\circ }  & \text{ if } 0 \leq x \leq 3 \\f(x) = 50^{\circ} & \text{ if } 3 < x \leq 6 \\ f(x) = 35^{\circ }& \text{ if } 6 < x \leq 12 \end{cases}

  • Please find attached the graph of the step function?

<h3>How can the step function be written?</h3>

The temperature at it is fermented in the first three days = 70 °F

From day 3 to 6 the temperature = 50 °F

From day 6 to day 12, the temperature at which it is kept in the freezer = 35 °F

The step function is therefore;

\begin{cases}f(x) = 70^{\circ }  & \text{ if } 0 \leq x \leq 3 \\f(x) = 50^{\circ} & \text{ if } 3 < x \leq 6 \\ f(x) = 35^{\circ }& \text{ if } 6 < x \leq 12 \end{cases}

The graph of the above function created with MS Excel is attached

Learn more about step functions here:

brainly.com/question/2509505

8 0
3 years ago
URGENT PLEASE HELP Me WILL GIVE BRAIN f(x)=2^x (0,f(0)) and (4,f(4))
Ray Of Light [21]

Answer:

f(x)=2^x (0,f(0))=0

2.m=(112+56h+7h2)−112(4h)−4=56h+7h2h=56+7h

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Thank you so much. (20 characters required)
padilas [110]
#3.
 √18²-5.7²    Second Choice

#4
l²=5²+4² = 25+16 = = 41
l=√41
l= 6.4

Second Choice

#5 Only A --- First choice

#7 6 ----- Third choice

#8 V= \pi r^2(h)=  \pi 10^2(3) = 314(3)=942  units³ ---Second choice


6 0
3 years ago
A 6-sided die is rolled. Find the theoretical probability of the event as a fraction, decimal, and a percent. Round all decimals
murzikaleks [220]
The following table shows the probabilities for rolling a certain number with a two-dice roll. If you want the probabilities of rolling a set of numbers (e.g. a 4 and 7, or 5 and 6), add the probabilities from the table together. For example, if you wanted to know the probability of rolling a 4, or a 7:
3/36 + 6/36 = 9/36.
6 0
3 years ago
Other questions:
  • What is x? <br> -6(9x+5) -3x+4x= -408+x
    15·1 answer
  • a Mexican restaurant I received 60 takeout orders the manager found that 60% of the orders were for tacos and 25% of the orders
    15·2 answers
  • Which numbers are rational numbers that are not integers?<br><br> 0,4,-2,2/3,-1.8,16,3.2,-5/4
    7·2 answers
  • Measured value: 23.5 cm actual value: 25 cm. What is the percent error???
    9·1 answer
  • Help please ............ must show work​
    5·1 answer
  • What is the Domain and Range *DON'T FORGET PARENTHESES AND BRACKETS*
    13·1 answer
  • Kaylee is a high school basketball player. In a particular game, she made some two point shots and some three point shots. Kayle
    5·1 answer
  • Pls help <br> Due asap <br> Thx!
    7·2 answers
  • 1. This data shows the pocket money that year 9 pupils receive each
    7·1 answer
  • Solve pls brainliest
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!