The triangle is an obtuse triangle. No sides are equal.
convert cm to dm
1 dm = 10 cm
side a: 20 cm ⇒ 20cm * 1dm/10cm = 20dm/10 = 2 dm
side b: 30 cm ⇒ 30cm * 1dm/10cm = 30dm/10 = 3 dm
side c: 40 cm ⇒ 40cm * 1dm/10cm = 40dm/10 = 4 dm
We need to get the area of a triangle, but first we need to solve for its height using Heron's formula
s = (a+b+c)/2 = (2+3+4)/2 = 9/2 = 4.5
<span>Area = </span>√<span>(s(s-a)(s-b)(s-c)
</span>h3/2 = √4.5(4.5-2)(4.5-3)(4.5-4)
h3/2 = √4.5(2.5)(1.5)(0.5)
h3/2 = √8.44
h3/2 = 2.91
h = (2.91*2)/3
h = 1.94
A = hb/2 = (1.94*3)/2 = 5.82/2 = 2.91 dm²
48 dm² / 2.91dm² = 16.5 or 17 tiles needed
17 x Rs200 = Rs3,400 is the total cost
Median is a better measure of center than the mean(average)
a) 56,62,68,71,104,507 ⇒ Median is a better measure. Mean is not a better measure because of the outliers.
b) 2,8.5, 9.2, 9.8, 10.1 lb ⇒ Median is a better measure.
c) Mean is a better measure. No outliers. Data set values are close with each other.
d) Mean is a better measure.
The slope-intercept form:
y = mx + b
m - slope
b - y-intercept
The parallel lines have the same slope.
We have y = -3x + 7 → m = -3. Therefore y = -3x + b.
Put the coordinates of the point (2, -4) to the equation of a line:

<em>add 6 to both sides</em>

<h3>Answer: y = -3x + 2</h3>
Answer:
Step-by-step explanation:
What is the equation?
You need to replace all A with 3 and all c with 12. If I had the equation, I'd be glad to help further.