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4 years ago

What property is used in the second step of solving the inequality below?

Mathematics

1 answer:

Taya2010 [7]4 years ago

5 0

Answer: Addition Property

Step-by-step explanation:

The difference between steps one and two is that the -9 is added to the other side to isolate 5x. (added- addition property)

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A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric f

likoan [24]

Step-by-step explanation:

Let x be the length and y be the width of the rectangular plot.

The plot is bounded on one side by a river and on the other three sides by a single-strand electric fence. It means,

x+2y = 1500

x = 1500 - 2y ....(1)

We know that the area of a rectangular plot is given by :

A = xy ....(2)

Put the value of x from equation (1) in (2)

$A=(1500-2y)y\\\\A=1500y-2y^2$ .....(3)

For largest area, differentiate above area equation wrt y.

$\dfrac{dA}{dy}=\dfrac{d}{dy}(1500y-2y^2)\\\\=1500-4y\\\\\text{Put}\ \dfrac{dA}{dy}=0\\\\1500-4y=0\\\\y=\dfrac{1500}{4}\\\\=375$

Put the value of y in equation (1).

x = 1500-2(375)

= 750 m

Put the value of y in equation (3).

$A =1500(375)-2(375)^2\\A=281250\ m^2$

Hence, the largest area is 281250 m² and its dimensions are 750 m and 375 m.

3 0

3 years ago

Factories: 64x3y3+8-2xy

Elena-2011 [213]

can you make the question clear so I can answer you the question.

3 0

3 years ago

-7^-2<br>does anyone know ?

Leno4ka [110]

Negative exponents mean that you flip the number upside down

so -7^-2 would become 1/-7^2

-7^2 would be 49

so the answer is <em>1/49</em>

8 0

3 years ago

Read 2 more answers

Find the percent of increase from 1.5 inches to 6 inches.

jeyben [28]

Since 6/1.5 is 4. It increased 400%.

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3 years ago

There is 1 inch of snow on the ground when it begins to snow 0.75 inch per hour. Which linear equation represents the total dept

aleksandrvk [35]

Y=0.75x+1 is the answer

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4 years ago