How do you calculate the area of each tringle: hight 3cm
base 9cm

base 8cm
hight 5cm

base 3.5cm
hight 9.8cm

The formula for area of a triangle is 1/2bh or one half base times height.

Step-by-step explanation:

First, multiply both numbers.

Then divide the product by 2. (This is the same as multiplying by 1/2)

And there you go, just make sure to label cm².

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.