The answer is 654
1298-4x=171+3x
1127-4x=3x
1127=7x
161=x now plug this in to the original equations 1298-4(161)=171 + 3(161)
1298-644 =171 + 483
654 = 654
Tina, the youngest child = t
The middle one = t + 2
The oldest one = t + 4
Sum of all the 3 children's age is 36.
⇒t + (t + 2) + (t + 4) = 36 ←Formula to calculate Tina's age (Answer C)
t + t + 2 + t + 4 = 36
3t + 6 = 36
3t = 30
t = 10
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Answer: Tina is 10 years old.
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Un binomio cuadrado perfecto es un trinomio que cuando factorizada le da el cuadrado de un binomio. Por ejemplo, el trinomio x ^ 2 + 2xy + y ^ 2 es un binomio cuadrado perfecto, ya que son los factores a (x + y) ^ 2.
Hope this helps!
¡Espero que esto ayude!
Answer:False
Step-by-step explanation:
158-163 has 6 numbers
163-167 has 5 numbers
I'll just factor the above equation.
x² + 18x + 80
x² ⇒ x * x
80
can be:
1 x 80
2 x 40
4 x 20
5 x 16
8 x 10 Correct pair
(x+8)(x+10)
x(x+10) +8(x+10) ⇒ x² + 10x + 8x + 80 = x² + 18x + 80
x+8 = 0
x = -8
x+10 = 0
x = -10
x = -8
(-8)² + 18(-8) + 80 = 0
64 - 144 + 80 = 0
144 - 144 = 0
0 = 0
(-10)² + 18(-10) + 80 = 0
100 - 180 + 80 = 0
180 - 180 = 0
0 = 0
I think the algebra tiles will not be a good tool to use to factor the quadratic equation because the equation is not a perfect square quadratic equation.