3 years ago

Ahmed reads for x minutes. Kimaya reads for 4/7

Mathematics

1 answer:

Galina-37 [17]3 years ago

3 0

4/7x=y

x=Ahmed # of minutes
y=Kimaya # of minutes

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Find the volume of a cone with a base radius of 6 yd and a height of 9 yd

Veronika [31]

$\text {Volume =} \dfrac{1}{3} \pi r^{2} h$

$\text {Volume =} \dfrac{1}{3} \pi (6)^{2} (9)$

$\text {Volume =} 339.29 \ yd^3$

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3 years ago

Show that the dual of the exclusive-OR is equal to its complement.

Rzqust [24]

Solution:XOR: X+Y= XY’ + X’YDual of XOR:= (X +Y’)+(X’+Y)= XX’+XY +X’Y’ +YY’= XY + X’Y’ Complement of XOR (XNOR)= (X+Y)’= (XY’ + X’Y)’=(X’+Y)+(X +Y’)= XX’+ XY + X’Y’+YY’= XY + X’Y’
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3 years ago

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The location of the point that is 3/4 the distance from

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16. What will be the midpoint of AB with A= (-3,-8) and B = (-9,-8)

mihalych1998 [28]

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3 years ago

What is the product of 2x + y and 5x – y + 3? x2 + xy + x + y2 + y

miskamm [114]

Answer: $10x^2+3xy+6x-y^2+3y$

Step-by-step explanation:

You need to remember the Product of powers property:

$(a^m)(a^n)=a^{(m+n)}$

Then, knowing this property, now you have to apply the Distributive property. So:

$(2x+y)(5x-y+3)=\\\\=(2x)(5x)-(2x)(y)+(2x)(3)+(y)(5x)-(y)(y)+(y)(3)\\\\=10x^2-2xy+6x+5xy-y^2+3y$

Finally, to simplify this expression, you need to add the like terms.

Therefore, you get that the product is:

$=10x^2+3xy+6x-y^2+3y$

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3 years ago

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