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ziro4ka [17]
3 years ago
7

If 0 is an acute angle and sin 0 = 1/2 then cos 0 =

Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0
In quadrant I, when sin angle is 1/2, cos angle is (sqrt3)/2
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Please answer my question bcz I can’t understand
RUDIKE [14]
Please send more context as of the "green numbers".

For the multiplication,

i 49 x 10 = 490
490 ÷ 10 = 49

ii 2.3 <span>÷ 10 = 0.23
0.23 x 10 = 2.3

iii 0.034 x 1000 = 34
34 </span><span>÷ 1000 = 0.034

iv 876 </span><span>÷ 100 = 8.76
8.76 x 100 = 876

Hope this helps :)</span>
3 0
2 years ago
PLEASE HELP 20 POINTS IF YOU HELP AND WILL BE MRAKED BRAINLEST!!!!!!!!!!!!!!!!The two-way table below shows the number of studen
Yuliya22 [10]

Your answer is the last option, 6.


We can work this out by looking for the total of people that like tennis in the table, and subtracting it from the total amount of people that like baseball.


This gives us a total of 46 people that like baseball, subtract 40 people that like tennis, and 46 - 40 = 6.


I hope this helps!

3 0
2 years ago
Expression where the solution is 19
MA_775_DIABLO [31]
We want something that equals 19 right? Anything can work here such as
10+9=19 <---we have our outcome as 19 
If you want something more complex 
<span>1(10)+10-1=? 
</span>When you solve that it equals 19! :) 
7 0
2 years ago
Read 2 more answers
The radioactive substance polonium-210, with a half-life of 138.39 days, is present in tobacco. Suppose that the soot in an ex-s
Ksju [112]

Answer:

16.07 milligrams

Step-by-step explanation:

From the question,

Using the formula of radioactive decay,

R/R' = 2ᵃ/ᵇ..................... Equation 1

Where R = Original mass of the polonium-210, R' = Final mass of polonium-210 after decaying, a = Total disintegration time, b = half life of polonium-210.

Make R' the subject of the equation

R' = R/(2ᵃ/ᵇ)................ Equation 2

Given: R = 100 milligrams, a = 1 years = 365 days, b = 138.39 days

Substitute these values into equation 2

R' = 100/(2³⁶⁵⁰⁰/¹³⁸³⁹)

R' = 100/(6.222)

R' = 16.07 milligrams of plonium-210

3 0
2 years ago
Which expression represents five more than one-third y?
MaRussiya [10]

Answer:

1/3 y  +5

Step-by-step explanation:

five more than one-third y

1/3 y  +5

5 0
2 years ago
Read 2 more answers
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