<h2>
Equation:</h2>
4x3-2x<x^2-2
<h2>
Answer:</h2><h3><em>D: 3</em></h3>
Factorise 4b² + 16b ⇒ 4b(b+4)
expand (a-1)(a-2) ⇒ a(a-2) - 1(a-2) ⇒ a² - 2a - 1a + 2 ⇒a² - 3a + 2
factorise x² + 8x + 7 ⇒(x + 1) (x + 7)
evaluate y⁶ / y² ⇒ y * y * y * y * y * y / y * y = y⁴
if x = -1 and y = 5, find z when z = x² + 2y² ;
z = -1² + 2(5²) ⇒ 1 + 2(25) ⇒1 + 50 = 51
Make x the subject: y = 4x - 3
y = 4x - 3
<u>+3 +3</u>
3 + y = 4x
<u>÷4 ÷4 </u>
(3+y)/4 = x
Answer:
14
Step-by-step explanation:
g(3)=(3)+3
g(3)=6
f(3)=-(3)-5
f(3)=-8
6-(-8)=14
the perimiter of a circle is called the circumference
the circumference=diamter times pi
pi=π≈3.14
given that the diameter is 2.5, the circumference or perimiter is 2.5π≈2.5*3.14=7.86 units