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Natalka [10]
3 years ago
15

Log(x+3/10)+logx+1=0

Mathematics
1 answer:
coldgirl [10]3 years ago
6 0
Hi dear,

log(x+3)-log10+logx+1=0

log(x+3)-1+logx+1=0

log(x+3)+logx=0

logx(x+3)=0

x(x+3)=10^0

x^2+3x-1=0

solve this equation that answers are:

X1= [ (13)^(1/2) - 3]/2

X1= [ (13)^(1/2) + 3]/2

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Andrea has 18 yards of fabric how many 4 inch pieces can she cut from her original piece
Nikolay [14]
Andrea can cut 4 1/2 (or 4.5) inch pieces from her original piece.

18/4 = 4.5


Hope this helps!
5 0
3 years ago
A side of the triangle below has been extended to form an exterior angle of 132°. Find the value of X
Zinaida [17]

Answer:

x = 114°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles, thus

x + 18° = 132° ( subtract 18° from both sides )

x = 114°

7 0
2 years ago
Simplify
melomori [17]

Answer: 4\sqrt{3}

Step-by-step explanation:

For this exercise it is important to remember the following:

i=\sqrt{-1} \\\\i^2=-1

Given the following expression:

-2i\sqrt{-12}

You can notice that the radicand (the number inside the square root) is negative. Therefore, in order to simplify the expression, you need to follow these steps:

1. Replace \sqrt{-1} with i and simplify:

(-2i)(i)\sqrt{12}=-2i^2\sqrt{12}=-2(-1)\sqrt{12}=2\sqrt{12}

2. Descompose 12 into its prime factors:

12=2*2*3=2^2*3

3. Substitute into the expression:

=2\sqrt{2^2*3}

4. Since \sqrt[n]{a^n}=a, you can simplify it:

=(2)(2)\sqrt{3}=4\sqrt{3}

4 0
2 years ago
Crusaders brought back new:<br><br><br> religious views<br> gold<br> ideas<br> products<br> weapons
erik [133]

Answer:

New products glass mirrors, cotton, rice.

Mirror was not made in Europe until 17th century but was part of Muslim culture in the 8th century.

3 0
3 years ago
Determine the points of intersection of the given functions. y = –x2 + 3x + 20 y = –2x + 15 Describe the features of the graphin
Tanzania [10]

After you type in your equations and hit graph you notice that, if you are in the standard window, your parabola is cut off so you have to choose your "window" button to change the viewing window to see the whole graph. Then you would use your 2nd button and "trace" and "intersect" to find the points of intersection of the 2 graphs. The first point is at (-.90901, 16.81812) and the second point is at (5.9090909, 3.1818182). Graphing calculators are quite amazing!

5 0
3 years ago
Read 2 more answers
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