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densk [106]
3 years ago
8

Find the value of the variable.

Mathematics
1 answer:
MatroZZZ [7]3 years ago
7 0

Answer:

sin 30=14/x

x=14*2

x=28

and

x=√{28²-14²}

x=14√3

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5 multiplied by what= -1?
nadya68 [22]
-1/5 multiplied by 5 =-1

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2 years ago
How many numbers are between 1 and 3 ?
kramer
If we are talking about whole numbers, the only number in between 1 and 3 is 2 but if we are talking about numbers in general, there are an infinite amount of numbers (for example, 1.1, 1.12, 1.004, and 1.80543285 are all in between 1 and 3).
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3 years ago
Which is the best approximation of the solutions to the system of equations graphed below?
Neko [114]

According to the direct inspection, we conclude that the best approximation of the two solutions to the system of <em>quadratic</em> equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

<h3>What is the solution of a nonlinear system formed by two quadratic equations?</h3>

Herein we have two parabolae, that is, polynomials of the form a · x² + b · x + c, that pass through each other twice according to the image attached to this question. We need to estimate the location of the points by visual inspection on the <em>Cartesian</em> plane.

According to the direct inspection, we conclude that the best approximation of the two solutions, that is, the point where the two parabolae intercepts each other, to the system of two <em>quadratic</em> equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

To learn more on quadratic equations: brainly.com/question/17177510

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4 0
1 year ago
Sandy makes 15.5 gallons of lemonade. She must refill the container after filling 100 drink cups. How much lemonade was in each
faltersainse [42]
100 divided by 15.5 = 0.155
5 0
3 years ago
What is 30% of 70? Show your work. Is this right? 30/100 = 0.3 x 70 = 21%
nadezda [96]
30\% \ of \ 70=30\% \times 70=\frac{30}{100} \times 70=0.3 \times 70=21
30% of 70 is 21.

Yes, it's right, but the answer is 21, not 21%.
4 0
3 years ago
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