3 years ago

What is the solution of this proportion 4/9 = 6/d

Mathematics

1 answer:

Alchen [17]3 years ago

4 0

Answer:

d = 2/27

Remember that when a variable is times with a number you <u>divide</u> the number on both sides.

When a variable is divided by a number, you <u>multiply</u> the number on both sides.

Hope this helps you and thank you !!

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Place the indicated product in the proper location on the grid (x+y+3)(x+y-4)

pashok25 [27]

Solution:

we have been asked to find the product of (x+y+3)(x+y-4).

we will multiply term by term as below

$(x+y+3)(x+y-4)=x(x+y+3)+y(x+y+3)-4(x+y+3)\\\\\ (x+y+3)(x+y-4)=x^2+xy+3x+xy+y^2+3y-4x-4y-12\\\\\text{Now take the like terms together and simplify we get}\\\\(x+y+3)(x+y-4)=x^2+y^2+2xy-x-y-12\\$

Hence the the product of (x+y+3)(x+y-4) is $x^2+y^2+2xy-x-y-12$

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3 years ago

What’s the answer to number 4 ?

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Answer:

$4.36*10^-^1$

Step-by-step explanation:

Given:

$(3.6*10^-^2)+(4.0*10^-^1)$

Make the power of '10' equal by shifting the decimal place of any one value.

$(0.36*10^-^1)+(4.0*10^-^1)$

Taking the ' $10^-^1$ ' common

$10^-^1*(0.36+4.0)$

Adding the values in the bracket gives:

$4.36*10^-^1$

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