Answer: -4x^2 + 8xy - 20y^2 + 12
Step-by-step explanation:
-4 (x2 - 2xy + 5y2 - 3)
-4(x^2) = -4x^2
-4(-2xy) = 8xy
-4(5y^2) = -20y^2
-4(-3) = 12
Answer:
<h2>
x = 2</h2>
Step-by-step explanation:
9•8 = 72
x² = 288÷72
x² = 4 ⇒ x = 2
Answer:
a
Step-by-step explanation:
if the top angle is 90° then the traingle is an isosceles triangle.
meaning that a=b.
this specific traingle is a silver traingle meaning that the ratio of the sides is 1:1:the root of 2.
so if

is 'a' multiplied by the root of two we need to divise it by the root of two to get 'a' and a=b.
Answer:
20w^5 - 12w^4 - 16 w^3
Step-by-step explanation:
20w^5 - 12w^4 - 16 w^3
Answer:
To find h the altitude we use sine
sin ∅ = opposite / hypotenuse
From the question
AC is the hypotenuse
h is the opposite
sin 29 = h / 23
h = 23 sin 29
h = 11.1506
h = 11.00mm to the nearest hundredth
Hope this helps you