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Cloud [144]
3 years ago
11

Please someone helppp

Mathematics
1 answer:
joja [24]3 years ago
7 0

Step-by-step explanation:

5)

sin2a=2sina.cosa

Subtitute values in formula:

sin2a=2(3/8)(5/8)

sin2a=30/64

6)

cos2∅=2cos²∅-1

=2(5/3)²-1

=2(25/9)-1

=50/9-1

=50-9/9

=41/9

<h3><u>N</u><u>o</u><u>t</u><u>e</u><u>:</u><u>i</u><u>f</u><u> </u><u>y</u><u>o</u><u>u</u><u> </u><u>n</u><u>e</u><u>e</u><u>d</u><u> </u><u>to</u><u> </u><u>a</u><u>s</u><u>k</u><u> </u><u>a</u><u>n</u><u>y</u><u> </u><u>question</u><u> </u><u>please</u><u> </u><u>let</u><u> </u><u>me</u><u> </u><u>know</u><u>.</u></h3>
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HELP PLZ! BRAINLIST WILL BE PICKED!
fomenos

Answer:

-0.9

Step-by-step explanation:

hope this helps lovely! lmk if you need an explanation!

3 0
3 years ago
A man gathers nuts in a forest. Each time he finds a nut, there is a 20% chance it is a pecan and a 35% chance it is a walnut.
gladu [14]
Either a pecan or walnut means you add the probabilities together

20% plus 35% equals 55%
7 0
3 years ago
What is 3/5 × 4/9 as a fraction.<br><br> Plz help :(
lozanna [386]
3/5 * 4/9 = 4/15. Hope this helps

3 0
3 years ago
Read 2 more answers
I need the lines slope
Vedmedyk [2.9K]

Step-by-step explanation:

For every 3 squares across, the line goea down 1 square.

Hence the slope is -1/3.

8 0
3 years ago
What is k/5.2 + 81.9= 47.2
weqwewe [10]
Solution for k/5.2+81.9=47.2 equation:
<span>k in (-oo:+oo)

k/5.2+81.9 = 47.2 // - 47.2

k/5.2-47.2+81.9 = 0

0.19230769*k-47.2+81.9 = 0 // - 81.9-47.2

0.19230769*k = -(81.9-47.2) // : 0.19230769

k = (-(81.9-47.2))/0.19230769

k = 5.20000006*(47.2-81.9)

k = 5.20000006*(47.2-81.9)

Always Practice, It makes Perfect! Anyways, I hope I helped... It would be nice if you can answer mine too, But you dont have to! ;) </span><span>brainly.com/question/253764
</span>
7 0
3 years ago
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