Solve the equation 2x^2 + 5x – 8 = 5/2x + 20 by writing a linear-quadratic system and solving using the intersection feature of
a graphing calculator. Round to the nearest tenth.
2 answers:
Answer: it is A.
Step-by-step explanation:
Answer:
Option (A)
Step-by-step explanation:
2x² + 5x - 8 = 
2(2x² + 5x - 8) = 
4x² + 10x - 16 = 5x + 40
4x² + 10x - 5x - 16 - 40 = 0
4x² + 5x - 56 = 0
By using graphing calculator,
x - intercepts are,
x = -4.4 and x = 3.2
Therefore, Option (A) will be the correct option.
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Answer:
7x+12 because there is 8x then you subtract 1x which 'll equal 7x and add the 12
Answer:
7
Step-by-step explanation:
35 divided by 5 equals 7
Answer:
The answer is 200.96 cm^2.
2*3.14*r=50.24
=>r=50.24/6.28
=>r=8 cm
Thus area = 3.14*r*r
= 3.14*8*8
=200.96 cm^2
Step-by-step explanation:
Answer:
D = 120, there are 2 real roots for F(x)
Step-by-step explanatU
using the
formula D = b^2 - 4ac for discriminant
D = 8^2 - 4*(-7)*2
D = 64 + 56 = 120
Answer:
r = 11
L = 6
Step-by-step explanation:
7(6) = 42
5(11) = 55
42 + 55 = 97
