3 years ago

0.286 rounded to the three decimal place will be rational or irrational and why

Mathematics

1 answer:

vova2212 [387]3 years ago

7 0

Rational because it can be expressed as a fraction.

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illustrate the following fraction s on your notebook a)2/3 b)7/9 c)10/12 d)8/12 e)4/5 f)8/6 g)9/4 h) 2 8/10

olga2289 [7]

Answer:

Okay the answers are in the pictures.

Step-by-step explanation:

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3 years ago

I need help . Write a word problem that can be solved by ordering three decimals to thousandths. Include a solution.

PilotLPTM [1.2K]

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3 years ago

What’s the answer to 7^3x=54

HACTEHA [7]

Answer:

x = 54/343

Step-by-step explanation:

$7^3x=54\\\rightarrow 7^3 = 343\rightarrow \text {Solve Exponents} \\343x=54\\\frac{343x}{343} =\frac{54}{343}\\x =\frac{54}{343}$

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4 years ago

Which of the following options could represent a possible set of interior angles of a triangle? 100°, 130°, and 130° 30°, 70°, a

omeli [17]

Answer:

2) 30, 70, 80

Step-by-step explanation:

Well there has to be <em>3 angles</em> that all add up to <em>180°</em>.

100+130+130

=360

30+70+80

= 180

25+3+35

=63

45 + 105 + 120

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150+120

270

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3 years ago

50 points!!! Picture below please help

Dmitry_Shevchenko [17]

Answer:

24/25

20/29

Step-by-step explanation:

Trigonometry ratios:

$sin(\theta)=\frac{O}{H} \\\\cos(\theta)=\frac{A}{H} \\\\tan(\theta)=\frac{O}{A}$

where O is the side opposite to the angle, A is the side adjacent to the angle and H is the hypotenuse (longest side)

As angles A and C are complementary, this implies that side b is the hypotenuse and sides a and c are the legs of a right triangle.

Referring to the attached diagram:

sin(A) = O/H = a/b

cos(C) = A/H = a/b

Therefore, sin(A) ≡ cos(C)

If sin(A) = 24/25 , the value of cos(C) = 24/25

If cos(A) = 20/29, the value of sin(C) = 20/29

6 0

3 years ago