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Wittaler [7]
3 years ago
13

Simplify.

}" alt="\sqrt{\frac{18}{50} }" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
VARVARA [1.3K]3 years ago
6 0

Answer:

3/5 or 0.6 or 6% depends on what your asking for

Step-by-step explanation:

^2 sqrt 0.36 = 0.6

STALIN [3.7K]3 years ago
3 0

Answer: \\  \sqrt{ \frac{18}{50} }  =  \sqrt{ \frac{9}{25}}  =  \sqrt{ \frac{ {3}^{2} }{ {5}^{2} } }  =  \frac{3}{5}

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The numbers -12, -7, -2, 3 follow a pattern. What are the next three numbers in this pattern?
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Answer:

8,13

Step-by-step explanation:

The pattern in +5 so 3+5=8, and 8+5=13

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Select the correct answer.
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2 years ago
Find all solutions of each equation on the interval 0 ≤ x < 2π.
Korvikt [17]

Answer:

x = 0 or x = \pi.

Step-by-step explanation:

How are tangents and secants related to sines and cosines?

\displaystyle \tan{x} = \frac{\sin{x}}{\cos{x}}.

\displaystyle \sec{x} = \frac{1}{\cos{x}}.

Sticking to either cosine or sine might help simplify the calculation. By the Pythagorean Theorem, \sin^{2}{x} = 1 - \cos^{2}{x}. Therefore, for the square of tangents,

\displaystyle \tan^{2}{x} = \frac{\sin^{2}{x}}{\cos^{2}{x}} = \frac{1 - \cos^{2}{x}}{\cos^{2}{x}}.

This equation will thus become:

\displaystyle \frac{1 - \cos^{2}{x}}{\cos^{2}{x}} \cdot \frac{1}{\cos^{2}{x}} + \frac{2}{\cos^{2}{x}} - \frac{1 - \cos^{2}{x}}{\cos^{2}{x}} = 2.

To simplify the calculations, replace all \cos^{2}{x} with another variable. For example, let u = \cos^{2}{x}. Keep in mind that 0 \le \cos^{2}{x} \le 1 \implies 0 \le u \le 1.

\displaystyle \frac{1 - u}{u^{2}} + \frac{2}{u} - \frac{1 - u}{u} = 2.

\displaystyle \frac{(1 - u) + u - u \cdot (1- u)}{u^{2}} = 2.

Solve this equation for u:

\displaystyle \frac{u^{2} + 1}{u^{2}} = 2.

u^{2} + 1 = 2 u^{2}.

u^{2} = 1.

Given that 0 \le u \le 1, u = 1 is the only possible solution.

\cos^{2}{x} = 1,

x = k \pi, where k\in \mathbb{Z} (i.e., k is an integer.)

Given that 0 \le x < 2\pi,

0 \le k.

k = 0 or k = 1. Accordingly,

x = 0 or x = \pi.

8 0
3 years ago
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The grades for the latest statistics exam are normally distributed. The mean was 93 with a standard deviation of 4. What is the
olga_2 [115]

Answer:68.27%

Step-by-step explanation:

TI84

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Hakeem can make 7 free throws in 2 minutes how many would he make in 18 minutes if you continue at the same rate
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63 free throws.

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