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katrin [286]
3 years ago
13

If

{1}{7} x +\frac{1}{3} y=4" alt="\frac{1}{7} x +\frac{1}{3} y=4" align="absmiddle" class="latex-formula">, then what does 3x + 7y equal?
A.) 21
B.) 84
C.) -21
D.) 10
Mathematics
2 answers:
NemiM [27]3 years ago
6 0
B is the answer to the question
Y_Kistochka [10]3 years ago
4 0
B would be the answer html bit
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2 years ago
Write an equation in standard form for a line that passes through (2,2) and (0,-3).
asambeis [7]
So,

The standard form is:
y = mx + b

First, we find "m," the slope.  Subtract the y-coordinates from each other.  Do likewise with the x-coordinates.

2 - -3 = 5
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3 years ago
Find the number one-third of the way from 1/6 to 4/5.
masya89 [10]
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3 years ago
Please Help me answer all 4 questions with a full explanation so I can solve the rest on my own.
Nata [24]

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2 years ago
Several intervals can be combined into one region using the "set union" operation, ∪∪, which is represented as "u" in webwork. f
alekssr [168]

Write the set of points from  -6 to 0 but excluding  -4  and 0 as a union of intervals

First we take  the interval  -6 to 0. In that -4  and 0 are excluded.

So we split the interval -6 to 0.

Start with -6 and go up to -4. -4 is excluded so we break at -4. Also we use parenthesis for -4.

Interval becomes [-6,-4) . It says -6 included but -4 excluded.

Next interval starts at -4 and ends at 0. -4 and 0 are excluded so we use parenthesis not square brackets

(-4,0)

Now we take union of both intervals

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7 0
3 years ago
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