(-3 7following is equivalent
__.
4
Answer:
See below.
Step-by-step explanation:
The graph of the quadratic equation is a parabola or u shaped graph. It has a vertex at (-1,-3) since h=-1 and k=-3 in the vertex form. It is also facing down since the leading coefficient is negative.
Respuesta: 4.5 pies que puede comprar si tiene $ 11.25
Explicación paso a paso:
Dado que hemos dado que
Costo de los dulces por pie = $ 2.50
Dinero total que gastó en dulces = $ 11.25
Sea x el número de pies que puede comprar
Ahora, según la pregunta, obtenemos eso,
Entonces, 4.5 pies que puede comprar si tiene $ 11.25.
Answer:
26
Step-by-step explanation:
→ Utilise Pythagoras theorem
a² + b² = c²
→ Substitute in the values
10² + 24² = c²
→ Simplify
100 + 576 = c²
→ Simplify further
676 = c²
→ Square root both sides to isolate c
26 = c
Answer:
Step-by-step explanation:
x²+10x+21=0
x²+10x+(10/2)²-(10/2)²+21=0
x²+10x+25-25+21=0
(x+5)²-4=0
(x+5)²=4
(x+y)²=(x+y)(x+y)=x(x+y)+y(x+y)=x²+xy+xy+y²=x²+2xy+y²
(x+y)²=x²+2xy+y²
coefficient of x=2y
y²=[(coefficient of x)/2]²=(2y/2)²=y²
