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Expression
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5x - 3x
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Substitute x = 2
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5 (2) - 3(2)
= 10 - 6
= 4
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Answer: 4
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Answer:
Maurice is correct.
Step-by-step explanation:
Because in order to multiply correctly you must find the total number of turbines that has been built.
Answer:
7. D:61
8. A:57
9. A: 47
Step-by-step explanation:
Quesiton 7:
To find perimeter we add all the sides together.
x+2x+2x+5=145
Combine all the x's.
5x+5=145
To isolate the constants, subtract 5 from both sides.
5x=140
Now divide both sides by 5 to isolate the x.
x=28
The questions asks for the length of AC, so to find that we need to insert our new x.
AC= 2(28)+5
56+5=61
Answer:
The correct answer is option D. -126
Step-by-step explanation:
<u>Points to remember</u>
<u>Composite functions</u>
f(x) and g(x) be the functions then,
(f - g)(x) = f(x) - g(x)
<u>To find the value of (m - n)(-5)</u>
Let m(x) = x³ and n(x) = √ (6 + x)
(m - n)(x) = m(x) - n(x)
= x³ - √( 6 + x)
(m - n)(-5) = m(-5) - n(-5)
= x³ - √( 6 + x)
= (-5)³ - √( 6 + -5)
= -125 - √1
= -125 -1
= -126
The correct answer is option D. -126
