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vekshin1
3 years ago
7

PLEASE HELP ASAP TRIGONOMETRY

Mathematics
1 answer:
otez555 [7]3 years ago
5 0

Answer:

11). x = 25.8°

12). x = 67.3°

Step-by-step explanation:

11). By using sine rule in the given triangle,

   cos(x) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

   cos(x) = \frac{27}{30}

   x = \text{cos}^{-1}(\frac{9}{10} )

   x = 25.84

   x ≈ 25.8°

12). By applying tangent rule in the given triangle,

    tan(x) = \frac{\text{Opposite side}}{\text{Adjacent side}}

    tan(x) = \frac{43}{18}

    x = \text{tan}^{-1}(\frac{43}{18} )

    x = 67.29°

    x ≈ 67.3°  

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marusya05 [52]

Answer:

Yes there is sufficient evidence.

Null hypothesis; H_o ; μ = 445

Alternative hypothesis; H_o ; μ ≠ 445

Step-by-step explanation:

The null hypothesis states that there is no difference in the test which is denoted by H_o. However, the sign of null hypothesis is denoted by the signs of = or ≥ or ≤.

Meanwhile, the alternative hypothesis is one that defers from the null hypothesis. This therefore implies a significant difference in the test. Thus, the signs of alternative hypothesis is denoted by; < or > or ≠.

Now, the question we have is a two tailed test. Thus;

The null hypothesis is;

bag filling machine works correctly at the 445 gram setting which is;

H_o ; μ = 445

The alternative hypothesis is;

bag filling machine works incorrectly at the 445 gram setting which is;

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4 years ago
The rectangular floor of a classroom is 20 feet in length and 36 feet in width. A scale
vova2212 [387]

Answer:

56

Step-by-step explanation:

20 feet =10 inchs

10 feet is 5 inches

5 feet is 2.5 inches

1 feet is 0.5 inch

10+5+2.5+0.5= 18 inches

10+10+18+18=56

5 0
3 years ago
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How would knowing the type of symmetry help you graph a function?
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A graph is said to be symmetric about the y -axis if whenever (a,b) is on the graph then so is (−a,b) . Here is a sketch of a graph that is symmetric about the y -axis. A graph is said to be symmetric about the origin if whenever (a,b) is on the graph then so is (−a,−b) .

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Help! (Math and area!!)
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Answer:

1.) Triangle is <u>1/2 x b x h (Which is option C)</u>

2.) Rhombus is<u> ½ × d1 × d2. (Which is option A)</u>

3.) Trapezoid is <u>½(b 1+b 2)h or (b1 + b2)h/2 (Which is option B)</u>

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Step-by-step explanation:

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<u>This</u><u> liberal arts college</u><u> has </u><u>all students</u><u> to study.</u>

<u />

The correct option is B.

What Is a Liberal Arts College?

  • While many colleges and universities grant liberal arts degrees, a liberal arts college offers a focused liberal arts education.
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What's the difference between a liberal arts college and a regular college?

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Learn more about Liberal Arts College

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