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
Cloud [144]
2 years ago
12

Given that cos a equals 4/5 what is sin a/2

Mathematics
1 answer:
astra-53 [7]2 years ago
8 0

-0.31622... yeah i think it is that

You might be interested in
Find the area of the parallelogram.
vodka [1.7K]
The height of the parallelogram is 8 because using the pythagorean theorem, a^2+b^2=c^2
6^2+x^2=10^2
36+x^2=100
100-36=64
square root of 64=8
area of parallelogram:
a=bh
a=8*14
a=112 units ^2
hope this helps!
4 0
2 years ago
I need help with this math question :(
Ray Of Light [21]

Answer:

k = 5,

y = 5x

Step-by-step explanation:

If y is proportional to x,

y ∝ x

Then the equation will be

y = kx

Her k = proportionality constant.

Now we choose a point from the given table.

Let the point is (2, 10).

By putting the values of x and y in the equation,

10 = 2×k

k = \frac{10}{2}

k = 5

This will be true for any point we choose from the table.

And the equation will be y = 5x

8 0
3 years ago
Write the equation of the line in fully simplified slope-intercept form. ​
Anettt [7]

Answer: y= -3/2 -5

explanation:

The slope is 3/-2, and it slopes down. making it a negative slope/fraction

And the point is on -5 on the Y axis.

Making the answer y= -3/2-5

3 0
2 years ago
Read 2 more answers
You buy 3.18 pounds of oranges, 1.25 pounds of peaches, and 1.96 pounds of grapes. What is your total bill
BabaBlast [244]

Answer:

$6.39

Step-by-step explanation:

Just add the cost of everything

3.18 + 1.25 + 1.96 = 6.39

4 0
2 years ago
Read 2 more answers
PLEASE HELP WITH MATH! 100 PTS
timurjin [86]

Answer:

1.) step No.3 x(2x-5) - (2x-5)

2.) 16 +28i-28i - 49i²

but we know i² = -1

the expression becomes

16 + 49

= 66

6 0
3 years ago
Read 2 more answers
Other questions:
  • A rope 29 ft long rope is tied to the top of a flag pole. The rope is staked to the ground 21 ft away from the base of the pole.
    15·2 answers
  • Solve for h. Then check your solution.<br><br> 2h + 6= 3h -19
    5·1 answer
  • Let w=width and 4 + w=
    12·1 answer
  • If there's $700 in half dollars quarters and silver dollars how many of each are there
    10·1 answer
  • @apologiabiology
    11·2 answers
  • Lokesh is sawing boards to make a deck. What is the area of the deck?
    5·1 answer
  • Lllllllllllllooooooooooooooooooook belllllllow plz help
    13·2 answers
  • 2x - 3y = 9<br> -5x – 3y = 30<br> Elimination method
    12·1 answer
  • A lawyer spends $75.00 on 3 staplers and 3 pads of paper. If each stapler costs $21.75, and each pad of paper costs x dollars, w
    12·2 answers
  • Help me on this one please​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!