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rusak2 [61]
3 years ago
6

In Saudi Arabia it takes 20 kursh to equal 1 riyal.

Mathematics
1 answer:
Ulleksa [173]3 years ago
6 0
The answer to (b) is 800
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Find the slope of the line tangent to the
g100num [7]
Ln(xy) - 2x =0

slope of the tangent line = derivative of the function

[ln(xy)]' = [2x]'

[1/(xy)] [y + xy'] = 2

y + xy' = 2(xy)

xy' = 2xy - y =y(2x-1)

y' = y(2x-1)/x

Now use x = -1 to find y and after to find y'

ln(xy) = 2x
x=-1
ln(-y) =-2

-y = e^-2

y = - e^-2

y' = [-e^-2][2(-1)-1]/(-1) = [e^-2](-2-1)= [e^-2](-3) = - 3e^-2

Answer: option 6. from the list
8 0
3 years ago
What does 3x/4 equal?
tester [92]

Answer:

\frac{3x}{4}

Step-by-step explanation:

<em>Nothing can be done with the equation because there is no quotient.  </em>

If there was, would be able to solve for x.

6 0
3 years ago
Find the measures of the indicated angles pictures included!!!
vazorg [7]

Answer:

25

Step-by-step explanation:

The angles b and 65 are complementary, meaning they sum to 90 degrees. You know this because those 2 angles and the right angle are sitting on a straight line. So, together they equal 180 and 180-90 is 90. Therefore, angle b+65 must equal 90. So, simply subtract 65 from 90 to get the answer, 25.

3 0
3 years ago
Eleanor and max used two rectangular wooden boards to make a set for the school play.one board was 6 feet long and the other boa
Oksi-84 [34.3K]

By definition, the area of a rectangle is:

A = w * l

Where,

w: width of the rectangle

l: length of the rectangle

The total area is given by:

A = A1 + A2

Where,

A1: rectangular wooden board 1

A2: rectangular wooden board 2

Substituting we have:

60 \frac{3}{8} = (6) (w) + (5\frac{1}{2}) (w)

Rewriting we have:

\frac{483}{8} = (6) (w) + (\frac{11}{2}) (w)

483 = 48w + 44w\\483 = 92w

w = \frac{483}{92}\\w = 5.25

 w = 5 \frac{1}{4}

Answer:

The width is given by:

w = 5 \frac{1}{4}

3 0
3 years ago
Read 2 more answers
The cost is 15,000.00 and a markup of 90%<br><br> help plez :)
VMariaS [17]
Very good question, well the answer you might be looking for is
Revenue: 28,500 $
Profit: 13,500
From what I calculated

Have a blessed day and God bless.
7 0
2 years ago
Read 2 more answers
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