Answer:
Step-by-step explanation:
first we need to calculate the area of isosceles triangle having sides 48cm, 48cm and 30cm
a = 48
b= 30
Area of isosceles triangle using only sides = ½[√(a^2 − b^2 /4) × b]
= 1/2*30√( 48² - 1/4×30²)
=1/2*30√ (2304 -225)
=684sq cm
cost required to make umbrella= 10*684*5
= 3<em>4200</em>
Answer:
13x - 3y + 4
Step-by-step explanation:
<u>Step 1: Combine like terms</u>
5x + 6 - 3y - 2 + 8x
13x - 3y + 4
Answer: 13x - 3y + 4
Answer:
=3
+
7
2
+
1
4
+
8
Step-by-step explanation:
Answer:
$1,792
Step-by-step explanation:
3 1/2×36.40=116.48
116.48÷6.5%=1,792
$1,792
Answer:
69 degree
Step-by-step explanation:
Using cosine formula again :))
So we have
BC^2 = AB^2 + AC^2 - 2*AB*AC*cosA
BC^2 = 32^2 + 28^2 -2*28*32*cos56
BC = 28.3884 cm
So B:
AC^2 = AB^2 + BC^2 - 2*AB*BC*cosB
CosB=0.3559
B=69.14 degree