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2 years ago

Rick owns a farm, which produces many different crops, including corn. The table shows the relationship between the number of

Mathematics

1 answer:

Neporo4naja [7]2 years ago

7 0

Answer:

i need the answer too

Step-by-step explanation:

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If x+2y=3 and xy=2 show that x³+8y³+9=0

kicyunya [14]

Step-by-step explanation:

Given

x + 2y = 3 and xy = 2
show that x³ + 8y³ + 9 = 0

Solution in steps:

(x + 2y)³ = 3³
x³ + 3x²(2y) + 3x(2y)² + (2y)³ = 27
x³ + 6x(xy) + 12y(xy) + 8y³ = 27
x³ + 8y³ + 6(x + 2y)xy = 27 ⇒ Substitute values
x³ + 8y³ + 6*3*2 = 27
x³ + 8y³ + 36 - 27 = 0
x³ + 8y³ + 9 = 0

Done

4 0

3 years ago

How do i solve 2x=-3 i need answer ASAP

Mrrafil [7]

Answer:

$x = \frac{-3}{2} \\or \\x = -\frac{3}{2}\\or\\-1.5$

Step-by-step explanation:

2x = -3

divide 2 from both sides

$x = \frac{-3}{2} \\\\or \\x = -\frac{3}{2}$

3 0

2 years ago

Read 2 more answers

Ordered pair for 6x-4y=16

Rashid [163]

Answer:

Step-by-step explanation:

Ordered pair for 6x-4y=16

8 0

3 years ago

I don't know what 22=1+something is

juin [17]

22=1+21?? I'm not sure what you're asking but that's my best bet

5 0

3 years ago

Read 2 more answers

HELP MEEEEEEEEEEEEEEEEEEEE

uysha [10]

$A=0.25^2+2*0.25\sqrt{\frac{0.25^2}{4}+ 1.2^2}$ Alright, lets get started.

The side of square base is given 0.25 in. (say a)

The height of pyramid is given 1.2 in. (say h)

The formula for surface area A is given below:

A=a^2+2a √(a^2/4+ h^2 )

Putting the value of a and h .

$A=a^2+2a\sqrt{\frac{a^2}{4}+ h^2}$

Putting the value of a and h

$A=0.25^2+2*0.25\sqrt{\frac{0.25^2}{4}+ 1.2^2} \\A=0.0625+ 0.5\sqrt{\frac{0.0625}{4}+ 1.44} \\A=0.0625+ 0.5\sqrt{0.015625 + 1.44} \\A=0.0625+ 0.5\sqrt{1.455}\\A=0.0625+ 0.5*1.20\\A=0.0625+ 0.60\\A = 0.6625 square inches$

Hence the area of pyramid is 0.6625 square inches. : Hope it will help :)

5 0

3 years ago