45 multiply 1/2 and 90 put it in the calculator 90 times 0.5
Y equals negative 4 because it's like 6 - 4 = 2
Answer:
Area =
Step-by-step explanation:
Here we are given with all the sides of the triangle , and we are asked to find the area of it. we will use Heron's Formula to find the area. The formula is as under
Area
Where
Where a , b and c are the three sides of the triangle
a=15 , b=10 and c=20
Substituting those values in the two formula one by one we get
now putting this value of s in main formula we get
Area=
Area =
Area =
Area =
Area =
Area =
Area =
Area =
Area =
Area =
because it has no equal sign.
Answer:
x=5
Step-by-step explanation:
x+9=2x+4
Subtract x from each side
x-x+9=2x-x+4
9 = x+4
Subtract 4 from each side
9-4 = x+4-4
x=5