Step-by-step explanation:
12/18=2/3
2/3×100%=66.67%
12/24=1/2
1/2×100%=50%
12/30=2/5
2/5×100%=40%
12/48=1/4
1/4×100%=25%
The height of the mat off the ground is 5 / √3 feet
<h3>How to find side of right angle triangle?</h3>
The right angle triangle has an adjacent side of 5 feet.
The hypotenuse and height of the right triangle is unknown.
Therefore,
tan 30 = opposite/adjacent
tan 30 = h / 5
h = 5 tan 30
h = 5 × 0.57735026919
h = 2.88675134595
h = 2.89 feet
Therefore, it can be written in surd form as follows:
height = 5 × 1 / √3
height = 5 / √3
learn more on right triangle here: brainly.com/question/26197425
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A. first total salary (S) is what is being found so put that on one side of the equal side, then 100 dollars are being made and this is not changed so we don't need a variable, put that on the other side of the equal sign. and since sales (X) is changing, keep the variable, 30% of that is added to the salary, so multiply that by x (first turn it into a decimal, divide it by 100) and add that to the initial 100
S=100+.3X
B. do the same thing above but with a new decimal and initial salary
S=150+.15X
C. since they both need to be equal (S=S) you can replace the S on one equation with the other
100+.3X=150+.15X
tan = opp/adj
x = 13(tan 45)
x = 13
//
a² + b² = c²
13² + 13² = 338²
square root of 338 is not a rational number so turn into mixed radical.
//
Statistics.
<span>Statistics is a branch of mathematics
which is the scientific study of mathematical values pertaining to qualitative descriptions
and transcribe them into quantifying values such as the descriptive statistics
and infuses these quantities in the field of inferential statistics. In these
two categories involve probabilities, distribution and deviations which are
mainly compositions of the descriptive statistics. Inferential statistics will
involve comparison and variation of the given values. Methods are t-test,
analysis of variance, and two-way analysis of variance and other methods. </span>
