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Dovator [93]
3 years ago
8

Answer this question plz​

Mathematics
1 answer:
svetlana [45]3 years ago
5 0
157 angle on a straight line
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Solve both by substitution method (algebra 2) and show work please<br><br> -2x-7y=22<br>-7x-5y=-1
Alex17521 [72]
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\bf -2\left( \frac{1-5y}{7} \right)-7y=22\implies \cfrac{10y-2}{7}-7y=22&#10;\\\\\\&#10;\textit{now, let's multiply both sides by 7, to toss the denominator}&#10;\\\\\\&#10;7\left( \cfrac{10y-2}{7}-7y \right)=7(22)\implies 10y-2-49y=154&#10;\\\\\\&#10;-39y=156\implies y=\cfrac{154}{-39}\implies \boxed{y=-4}&#10;\\\\\\&#10;\textit{now, let's use that in the \underline{first one}}&#10;\\\\\\&#10;-2x-7(-4)=22\implies -2x+28=22\implies 6=2x\implies \cfrac{6}{2}=x&#10;\\\\\\&#10;\boxed{3=x}
4 0
3 years ago
A polynomial function has a zero at 4 (multiplicity 3) and 0 (multiplicity 1)
Maslowich

Answer:

Y=3x(x-4)

Step-by-step explanation:

4 0
3 years ago
Write an equation in​ point-slope form of the line that passes through the given​ points, then write the equation in​ slope-inte
frosja888 [35]

As we go from (-6,6) to (9,1), x increases by 15 and y decreases by 5.  Thus, the slope of this line is m = rise / run = -5/15, or m = -1/3.

Point-slope form:  y-6 = (-1/3)(x+6), using data from (-6,6).  

Slope-intercept form:  starting with y = mx + b, substit. -6 for x, 6 for y and -1/3 for m:

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6 = 2 + b.  Then b = 4, and the equation in slope-intercept form is

y = (-1/3)x + 4.

8 0
3 years ago
Maria grandmother has 1/6 pound of silver coins she divides the coins evenly by weight among her 4 grandchildren what fraction o
Alja [10]
1/6÷4/1
do reciprocal
1/6×1/4

1×1=1
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maria receives 1/24 a pound of silver coins

hope this helps

8 0
3 years ago
A man earns $3580 per month and spend 65% of it. How much does he save every month?
Sloan [31]

Answer:

23000 dollars

Step-by-step explanation: because 3580 is about i dont even know scrub

4 0
3 years ago
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