Answer:
B. false
Step-by-step explanation:
The left side 4 does not equal to the right side 9
, which means that the given statement is false.
Answer:
40%
Step-by-step explanation:
14 - 10 = 4
4/10 = 0.4
0.4 x 100% = 40%
Answer:
x = (-7 ±√89)/4 . . . . . the inverse of selection 3.)
Step-by-step explanation:
You have a quadratic ax²+bx+c=0 with a=2, b=7, c=-5. The solution is given by the quadratic formula as ...
... x = (-b ±√(b² -4ac))/(2a)
Putting your values into the formula gives ...
... x = (-7 ±√(7²-4(2)(-5)))/(2(2))
... x = (-7 ±√89)/4
_____
<em>Comment on answer choices</em>
For whatever reason, the answer choices appear to be "upside down," with numerator and denominator interchanged. The notation a/b means "a divided by b", which is to say that "b" is the denominator.
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