Answer:
A: 5 hrs. B: 14 hrs. and 40 min.
Step-by-step explanation:
too long to explain.
Answer:
D for the first one A for the second
Answer:
Step-by-step explanation:
6*68=408
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48/10=4.8
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3.8=x/7.7
x=3.8*7.7x
x=29.26
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x+5.1=13.4
x=13.4-5.1
x=8.3
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8x=64
x=64/8
x=8
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22=m+1
m=22-1
m=21
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45-4x for x=5
45-4(5)=45-20=25
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256, 64, 16, 4
Answer:
two real roots
Step-by-step explanation:
y = -2x^2 + 9x - 7
This is in the form
ax^2 +bx+c
a = -2 b = 9 c = -7
The discriminant is
b^2 -4ac
(9)^2 - 4(-2) (-7)
81 - 56
25
Since the discriminant is greater than zero, there are two real roots
The length of an equilateral triangle is C. 8.2 cm
