When writing fractions in simplest form, there are two rules to follow. First, ask if the numerator and denominator can be divided by the same number. Second, see if at least one number in the fraction is a prime number. We do as follows:
7500 / 320 / 20/20 = 375 / 16
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Answer:
<h2>h=14</h2><h3>steps-by-steps explanation:</h3><h3>to understand the solving steps</h3><h3>you need to know about:</h3>
<h3>given:</h3>
-98=-7h
<h3>to solve:</h3>
h
<h3>let's solve:</h3>
step-1:define
-98=-7h
step-2: rewrite
-7h=-98
step-3:divide both sides by -7
-7h/-7=-98/-7
ANS:
h=14
Answer:
1556
Step-by-step explanation:
389 times 4 is 1556
In <span>equilateral triangle all sides are equal =x,
from right triangle that is formed by </span>apothem , height 7*3= 21
hypotenuse /opposite leg = sin angle,
hypotenuse is a side of triangle =x, opposite leg is apotheme =21,
angle in equilateral triangle =60⁰
21/x= sin 60, x*sin60=21, x=21/sin60, x=21/(√3/2), x=42/√3
Area of triangle =1/2 x*x*sin angle
Area of triangle =1/2 *42/√3*42/√3*sin 60=1/2*(42²/3)*(√3/2) ≈ 255 cm²
this is just second way to do this problem, that I did at first (either way is correct)
<span> apothem divides one side by half,
so we get small right triangle with sides x hypotenuse, x/2 is one leg , and 21 is another leg
</span>by Pythagorean theorem
x²=(x/2)² +21²
x²-x²/4=441
3x²/4=441
3x²=441*4=1764
x²=1764/3
x=42/√3
Area of triangle =1/2*base *height =1/2*42/√3 *21≈255 cm²