Help please?

1 answer:

6 0

13)4n-40=-14n+14
=4n+14n=14+40
=18n=54
n=54/18
n=3

14)35a-28-1=14-8a
35a+8a=14+29
43a=43
a=43/43
a=1

15)-31-4x=-5-5-25x
-4x+25x=-10+31
21x=21
x=21/21
x=1

16)38+7k=8k+32
7k-8k=32-38
-k=-8
k=-8/-1
k=8

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Two parallel lines are crossed by a transversal. What is the value of k ?

MakcuM [25]

Answer:

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Step-by-step explanation:

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4 0

2 years ago

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olya-2409 [2.1K]

Answer:

$A_{sector} = \dfrac{100\pi}{3}$

$A_{sector} = 104.7 ~square~units$

Step-by-step explanation:

The area of a full circle is

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For a sector:

$A_{sector} = \dfrac{n}{360^\circ}\pi r^2$

where n = central angle of sector.

Here you have a radius of 10 and a central angle of 120 deg.

$A_{sector} = \dfrac{120^\circ}{360^\circ}\pi(10^2)$

$A_{sector} = \dfrac{1}{3}\pi(10^2)$

$A_{sector} = \dfrac{100\pi}{3} ~square~units$

$A_{sector} = 104.7 ~square~units$

5 0

3 years ago

Calculate dy/dx if Ln (x + y) = e^x/y<br> Pic included

vesna_86 [32]

The first thing you should do when dealing with implicit derivatives is to respect the rules of derivation of both the logarithm and the exponential
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The answer for this case is D
I attach the solution