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romanna [79]
3 years ago
8

Suppose a is an irrational number and b/c is a rational number. Can their sum be rational? Explain your

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
4 0

Answer:

it can but doesnt always have to be because it can be a commplex decimal and not a fractionn

Step-by-step explanation:

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What is the equation of the perpendicular to y=2/3x+1 that passes through the point (12,-6)
postnew [5]
Well, first off let's check what is the slope of y = 2/3x+1.... .hmmmmm, notice    \bf y=\stackrel{slope}{\cfrac{2}{3}}x+1  , since the equation is already in slope-intercept form, we can see it has a slope of 2/3.

well then, a line perpendicular to that one, will have a negative reciprocal to it.

\bf \textit{perpendicular, negative-reciprocal slope for slope}\quad \cfrac{2}{3}\\\\
slope=\cfrac{2}{{{ 3}}}\qquad negative\implies  -\cfrac{2}{{{ 3}}}\qquad reciprocal\implies - \cfrac{{{ 3}}}{2}

so, we're really looking for the equation of a line whose slope is -3/2 and goes through 12, -6.

 \bf \begin{array}{lllll}
&x_1&y_1\\
%   (a,b)
&({{ 12}}\quad ,&{{ -6}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies -\cfrac{3}{2}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-(-6)=-\cfrac{3}{2}(x-12)
\\\\\\
y+6=-\cfrac{3}{2}x+18\implies y=-\cfrac{3}{2}x+12
7 0
3 years ago
What is 18.5% of $3200 ?
Naddik [55]
18.5% as a decimal is 0.185
0.186×3200= 592
3,200-592= $2,608
8 0
3 years ago
Read 2 more answers
A batsman scored the following number of runs in six innings:
vlabodo [156]

Answer:

D

Step-by-step explanation:

The mean or average is calculated by summing each element and then dividing by the number of elements.

We have: 35, 30, 45, 65, 44, and 21.

There are six elements in total.

We find the sum by adding. Hence:

35+30+45+65+44+21=240

We will now divide by 6, the number of elements:

240/6=40

Therefore, the mean runs scored by the batsman is 40.

Hence, our answer is D.

4 0
3 years ago
-(3g + 5h -2j - 5 + 4g - 5<br><br> What is this simplified <br><br> (Giving out brainiest )
Slav-nsk [51]

Answer:

g + 5h - 2j - 10

Step-by-step explanation:

-3g + 5h -2j - 5 + 4g - 5

simplify using like terms

-3g + 4g = 1g or "g"

5h

-2j

-5 + (-5) = -10

g + 5h - 2j - 10

5h and -2j didn't have any like terms.

6 0
2 years ago
What is a and b? PLEASE HELP!!
Phantasy [73]
They are not questions, you are gonna have to use the diagram provided in ur assignment
3 0
3 years ago
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