Answer: 68cm
4X5=20
+18=38
+30=68cm
Answer:
1734.1591
Step-by-step explanation:
Answer: 17.9
Step-by-step explanation:
Using Heron's formula:
Area of a triangle is given by:
√s(s-a)(s-b)(s-c)
Where a, b and c ara sides of the triangle and
S = (a+b+c) / 2
In the question above sides are :
XY=XZ= 20 and YZ=18
S = (20 + 20 + 18) / 2 = 58/2 = 29
Area = √29(29-20)(29-20)(29-18)
Area = √29(9)(9)(11)
Area = √25839
Area = 160.74513
Altitude = height(h)
Area = 0.5 × base × height
Base = yz = 18
160.74513 = 0.5 × 18 × h
160.74513 = 9 × h
h = 160.74513 / 9
h = 17.9 (3 s.f)
Answer:
32
Step-by-step explanation:
just took it
Answer:
True
Step-by-step explanation:
This is true for a>0 and x>0. We can prove it by plugging in a and x for f(x) = ln(x)
f(ax) = ln(ax) = ln(a) + ln(x)
We see that ln(a) + ln(x) is exactly f(a) + f(x)
Therefore, the statement above is true for any a>0 and x>0