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Gnom [1K]
3 years ago
5

|b|+b^3;b=-2 evaluate the expression

Mathematics
1 answer:
saveliy_v [14]3 years ago
5 0

Answer:

-6

Step-by-step explanation:

| - 2|  = 2 \\  {( - 2)}^{3}  = ( - 2)( - 2)( - 2) = ( - 8) \\  \\  | - 2 |  +  {( - 2)}^{3 }  = 2 - 8 =  - 6

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a rectangle is 4 times as long as it wide. if the length is increased by 4 inches and the width is decreased by 1 inch, the area
Mekhanik [1.2K]
x-\ width\\
y-\ length\\
4x=y\\
(y+4)(x-1)=60\\
(4x+4)(x-1)=60\\
4x^2-4x+4x+4=60\ \  | subtract\ 4\\
4x^2=56\ \ | divide\ by\ 4\\
x^2=14\\
x=\sqrt{14}\\
y=4\sqrt{14}\\\\
Dimensions:\ width=\sqrt{14}in,\ length=4\sqrt{14}in.
6 0
3 years ago
Please help really confused on all
ollegr [7]
\left \{ {{x - y = 1.50} \atop {40x + 40y = 940}} \right.  
 \\ \\
*x - y = 1.50

x = 1.50 + y

*40x + 40y = 940
40 (1.50 + y) + 40y = 940
60 + 40y +40y = 940
60 + 80y = 940
80y = 940 - 60
80y = 880
y = 880/80
y = 11

*
x - y = 1.50
x - 11 = 1.50
x = 1.50 + 11
x = 12.5

x=DAVID
Y=PETER
5 0
3 years ago
Credit card A has an APR of 26.2% and an annual fee of $30, while credit card B has anAPR of 27.1% and no annual fee. ALl else b
butalik [34]
Taking the quiz now. 
The answer is $2617.85.
5 0
3 years ago
Read 2 more answers
1. 4/5 - 1/6<br> 2. 3/10 - (-1/4)<br> 3. -2/3 + (3/4 + 5/3)
Sauron [17]
1. Answer: 19/30 or 0.63
2. Answer: 11/20 or 0.55
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3 0
3 years ago
Read 2 more answers
SOMEBODY HELP ME PLS!
babunello [35]

Answer:

To find the value of y from a given value of x, find the position of x on the x-axis, then trace vertically until you meet the line.  Once you meet the line, trace horizontally to the y-axis to find the corresponding value of y.

To find the value of x from a given value of y, find the position of y on the y-axis, then trace horizontally until you meet the line.  Once you meet the line, trace vertically to the x-axis to find the corresponding value of x.

From inspection of the graph,

when x = 1,  y = -1

when x = 0, y = 2

when x = 2, y = -4

Therefore,

\begin{array}{| c | c |}\cline{1-2} x & y\\\cline{1-2} 1 & -1 \\\cline{1-2} 0 & 2 \\\cline{1-2} 2 & -4 \\\cline{1-2}\end{array}

To find the equation of the line, find the slope:

\sf slope\:(m)=\dfrac{change\:in\:y}{change\:in\:x}=\dfrac{2-(-1)}{0-1}=-3

Then use one of the points and the found slope with the point-slope form of a linear equation: y-y_1=m(x-x_1)

\implies y-2=-3(x-0)

\implies y=-3x+2

So the equation of this line is: y=-3x+2

3 0
2 years ago
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