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irga5000 [103]
2 years ago
7

Please help … will mark brainliest

Mathematics
1 answer:
vlada-n [284]2 years ago
4 0

Answer:

k = 3

Step-by-step explanation:

Expanding the first term, we find 1/x at 10(kx)²(1/x)³ = 10k²/x

Expanding the first term, we find 1/x at 8*1⁷(-2/x)¹ = -16/x

Then

10k² - 16 = 74

k = 3

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Parallel lines are always straight so find the coordinates and then do y2-y1 over x2-x1 and it will be 0
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3 years ago
Mark made a business trip of 259.5 miles. He averaged 59mph for the first part of the trip and 57mph for the second part. If the
max2010maxim [7]

Answer:

Step-by-step explanation:

d = r * t

Let the time at 59 miles /  hour be t

59*t + 57* (4.5 - t) = 259.5              Remove the brackets

59*t + 256.5 - 57*t = 259.5            Combine the left

2t + 256.5 = 259.5                         Subtract 228 from both sides

2t = 259.5 - 256.5                          Combine

2t =  3                                              Divide by 2

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So he spent 1.5 hours going at 59 miles per hour

He spent 4.5 - 1.5 = 3 hours going 57 miles per hour.

                               

8 0
2 years ago
Can someone please help me with this logarithm equation!!
enot [183]

Answer:

\frac{629}{2}

Step-by-step explanation:

So, our equation is:

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In exponetial form, this looks like:

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Now lets cube the 5:

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Next, we can multiply the denominator on the right side by 5:

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We need to now get x alone by adding 4 to both sides:

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Finally, we divide by x's coefficent, 2, to get:

x=\frac{629}{2}

Hope this helps! :3

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Eric is planning to paint the four pillars that are attached to the front of his house. But, he needs to know how many square fe
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Assume that the pillars are cylindrical..you're looking for the lateral surface area correct? to get the lateral surface area, you use the formula LSA = 2rh(pi) where r is radius h is height substitute the values... h = 10 d = 1 so r =1/2 so LSA = 2 (1/2)(10)(3.14) LSA = 10(3.14) LSA = 31.4 sq ft :D                                      Can You Mark Me Brainlest Plz...
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3 years ago
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