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labwork [276]
3 years ago
6

Which expression is equivalent to 2(-3x+5)? A.-6x+5 B.-6x+10 C.6x-10 D.6x-5

Mathematics
2 answers:
pochemuha3 years ago
5 0
B if you’re doing distributive property
Tamiku [17]3 years ago
4 0

Answer:

B

Step-by-step explanation:

2(-3x + 5)

2*-3x = -6x

2* +5 = 10

Therefore equation is = -6x+10

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Find the interval(s) where the function is increasing and the interval(s) where it is decreasing. (Enter your answers using inte
Mashcka [7]

Answer:

f'(x) > 0 on (-\infty ,\frac{1}{e}) and f'(x)<0 on(\frac{1}{e},\infty)

Step-by-step explanation:

1) To find and interval where any given function is increasing, the first derivative of its function must be greater than zero:

f'(x)>0

To find its decreasing interval :

f'(x)

2) Then let's find the critical point of this function:

f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}[6-2^{2x}]=\frac{\mathrm{d} }{\mathrm{d}x}[6]-\frac{\mathrm{d}}{\mathrm{d}x}[2^{2x}]=0-[ln(2)*2^{2x}*\frac{\mathrm{d}}{\mathrm{d}x}[2x]=-ln(2)*2^{2x}*2=-ln2*2^{2x+1\Rightarrow }f'(x)=-ln(2)*2^{2x}*2\\-ln(2)*2^{2x+1}=-2x^{2x}(ln(x)+1)=0

2.2 Solving for x this equation, this will lead us to one critical point since x'  is not defined for Real set, and x''=\frac{1}{e}≈0.37 for e≈2.72

x^{2x}=0 \ni \mathbb{R}\\(ln(x)+1)=0\Rightarrow ln(x)=-1\Rightarrow x=e^{-1}\Rightarrow x\approx 2.72^{-1}x\approx 0.37

3) Finally, check it out the critical point, i.e. f'(x) >0 and below f'(x)<0.

8 0
3 years ago
4
Dennis_Churaev [7]

Answer:50 cents. $5

Step-by-step explanation: each pound of sugar costs 50 cents. you can find that out by dividing the amount of sugar you have by the cost.

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Step-by-step explanation:

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Plans Math Fourth grade &gt; W.4 Parallel sides in quadrilaterals 58M How many pairs of opposite sides are parallel? no pairs 1
AURORKA [14]

Answer:

2 pairs

Step-by-step explanation:

The north & south sides are parallel and the east & west are parallel.

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3 years ago
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