Answer: Range = 21
Step-by-step explanation: you subtract the highest number by the lowest number in the set to find your range
Ok so what is do is
the bottom half is the radius
the top half is a little bit m ore tricky
we can do
18=base
15=sides
makes an equilateral traignel
split it up into
base 18/2=9
hypotonuse 15
height=?
9^2+x^2=15^2
81+x^2=225
x^2=144
x=12
height=12
add
radis=15
height=12
15+12=27
27 cm
Answer:
124 students
Step-by-step explanation:
Girls participating in the exercise
4/15 x 285 = 76
Boys participating in the exercise
3/20 x 320 = 48
Total students participating
76 + 48 = 124
Using the elimination method, the value of x in the system of equations is calculated as: 8.
<h3>How to Solve a System of Equations by Elimination?</h3>
To solve a system of equations given using the elimination method, do the following:
Multiply 2x - 5y = 1 by 2 and multiply -3x + 2y = -18 by 5 to get the following:
4x - 10y = 2 --> eqn. 1
-15x + 10y = -90 --> eqn. 2
Add
-11x = -88
Divide both sides by -11
x = 8
Learn more about system of equations on:
brainly.com/question/14323743
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Ok so u have to set them equal to 180 bc they r supp lines so 1.15+x=180 sub 15 from both sides x=165
2.28+x-4=180 combine like terms 28-4=24 rewrite 24+x=180 den sub 24 from both sides x=156
I will put the rest in the comments if you still don't know