0.42 repeating decimal rational or irrational

Mathematics

1 answer:

Artemon [7]4 years ago

5 0

Repeating decimals are rational

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2. The student council is sponsoring a concert as

Jlenok [28]

Answer:

80 adults must addent to make a complete $1,000

Step-by-step explanation:

You start with the students, $3 for each and 200 of them attend. 3x200=600 dollars in total. Then you would subtract 600 from 1,000. Next you will do the adults, 5x80=400 (The "leftover" cash) $5 for each times 80 adults will be $400 in total.

8 0

3 years ago

Marty went on a bike ride to the store 8 miles away. If it took Marty 34 of an hour to get there and 12 of an hour to get back,

Arturiano [62]

Answer:

Step-by-step explanation:

i dont know

8 0

2 years ago

Look at the picture below

Vadim26 [7]

= 2x + 11

Steps

(8x+9) -(6x-2)

Remove ( a ) = a

8x + 9 - 6x + 2

Simplify

8x+ 9 - 6x + 2: 2x + 11

= 2x + 11 <----- your answer

Please tell me if this was right

3 0

3 years ago

What is the equation of a line parallel to y=1/2×+6 that passes through (-4,1)

IgorC [24]

keeping in mind that parallel lines have exactly the same slope, let's check for the slope of the equation above

$y = \stackrel{\stackrel{m}{\downarrow }}{\cfrac{1}{2}}x+6\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}$

so we're really looking for the equation of a line whose slope is 1/2 and passes through (-4 , 1)

$(\stackrel{x_1}{-4}~,~\stackrel{y_1}{1})\hspace{10em} \stackrel{slope}{m} ~=~ \cfrac{1}{2} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{1}=\stackrel{m}{ \cfrac{1}{2}}(x-\stackrel{x_1}{(-4)}) \\\\\\ y-1=\cfrac{1}{2}(x+4)\implies y-1=\cfrac{1}{2}x+2\implies y=\cfrac{1}{2}x+3$

5 0

2 years ago

a rectangle has a length of 9.3 time 10 to the 2nd power and width 8.4 times 10 to the 2nd power. what is the area of the rectan

goldfiish [28.3K]

$(9.3 \times 10^{2} ) \times (8.4 \times 10^{2} ) = 781200 ^{2}$
Quite a large number. Hope this helps! (781200(squared))

8 0

3 years ago