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
inna [77]
2 years ago
13

Cos ²a/2 = (tana + sina/ 2 tan a)​

Mathematics
1 answer:
Yakvenalex [24]2 years ago
7 0

Step-by-step explanation:

<h2>Hope it helps ....</h2><h2>Moderator are worst of this app</h2>

You might be interested in
322 ÷ 14 using partial quotients
Nezavi [6.7K]
What exactly are partial quotients? Normal divisions says the answer is twenty three
5 0
3 years ago
Planes A and B intersect in line s. If point Vis a point on line s, then it lies on:
Trava [24]

Answer:

Option C.

Step-by-step explanation:

It is given that planes A and B intersect in line s.

It means, all points lie on the line s must be lie on both plane A and B because s is the line of intersection of both plane A and B.

It is given that V is a point on line s.

Since, the point V lies on line s, therefore it is also lies on both plane A and B.

Hence, the correct option is C.

7 0
3 years ago
Can someone pleeeeease help me!!
charle [14.2K]

Answer:

I’m pretty sure it’s 73% but I’m not completely sure

6 0
3 years ago
2x+3y=1 and y=-2 - 9 solve using linear combination method. Please explain steps.
kaheart [24]

Answer:

x=17

Step-by-step explanation:

2x+3y=1

y=-2-9

  • In order to combine these two equations, an idea you need to keep in mind is finding a way of setting these equations as equal to each other. I saw that each equation shared a common value, y. In this case, we need to isolate y in the first equation so that both equations =y.

2x+3y=1

3y=-2x+1

\frac{3y}{3}=\frac{-2x+1}{3}

y=-\frac{2}{3}x+\frac{1}{3}

  • With this, we now know that both -2-9 and -\frac{2}{3}x+\frac{1}{3} are equal to y, so we can set them equal to each other.

y=-\frac{2}{3}x+\frac{1}{3}

y=-11

-\frac{2}{3}x+\frac{1}{3}=-11

  • Reply to this if anything I'm saying or doing is confusing in any way, or if you find a mistake. :) Solve for x.

-\frac{2}{3}x+\frac{1}{3}=-11

-\frac{2}{3}x=-11-\frac{1}{3}

-\frac{2}{3}x =-\frac{33}{3}-\frac{1}{3}

-\frac{2}{3}x =-\frac{34}{3}

-\frac{2}{3}x(-\frac{3}{2})=-\frac{34}{3}(-\frac{3}{2})

x=\frac{102}{6}=17

x=17

  • Hopefully this answer is correct AND makes sense in terms of how I achieved it. Again, reply to this with any questions or mistakes I made and I'll do my best to answer or fix them.

 

4 0
3 years ago
What times 1/10 equals 0.047
Zina [86]

Answer:

.47

Step-by-step explanation:

1/10= .1

0.0.47/.1=.47

-1 x .47=0.47

5 0
3 years ago
Read 2 more answers
Other questions:
  • Subtract (In picture)
    9·1 answer
  • Pls help this is for a test and uh I suck at math.
    8·2 answers
  • Two less than the product of 8 and a number is 8
    11·1 answer
  • Adam says he can walk 20 feet to the left, then 20 feet to the right and be back in his original position. Is Adam correct? Why
    6·2 answers
  • Which is not an advantage of using a histogram to represent data
    6·1 answer
  • 4. Molly had $21 to spend on two notebooks. After buying them he had $13. How much did each notebook cost? 
    5·2 answers
  • On the first day of spring and entire field of flowering trees blossom.The locus population Gaines 87% of its size every 2.4 day
    9·1 answer
  • Evaluate -1-(-z) when z=-2
    10·1 answer
  • (a) Type an equation and (b) solve. Type the answers in the spaces provided.
    7·1 answer
  • Michelle's checking account shows the following entries.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!