Janine wants a necklace 45 beads long

Mathematics

2 answers:

SCORPION-xisa [38]4 years ago

7 0

Answer:

9 red and 36 blue

Step-by-step explanation:

1+4=5 so 45/5=9

seraphim [82]4 years ago

4 0

If there are 45 beads, with a ratio of $1:4$
Then,
$\frac{45}{5}=9$
Then if $\frac{1}{4}=\frac{9}{x}$
Then $x=9*4$
Therefore, $x=36$
Meaning, there would be a ratio of 36 beads to 9 beads

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What is cos of negative pi/3?<br> what is sin of negative pi/3?

stellarik [79]

Pi/3 is equivalent to 60 degrees, as 2pi is equal to 360 degrees. cos(60) in a triangle yields 1/2, and sin(60) yields (3^(1/2))/2. Thus, -pi/3, or -60 degrees would be a fourth quadrant point on the unit circle and these values would be negative as well, at cos(-pi/3)=-1/2 and sin(-pi/3)=-(3^(1/2))/2

4 0

3 years ago

Read 2 more answers

PLEASE PLEASE HELP!! THANK YOU

Dmitrij [34]

Step-by-step explanation:

17². + 144²=x²

289 + 20736=x²

x²=21025

x =√21025

x=145

145 miles apart