3 years ago

Which of the following properties was used in the expression shown here? 5(25x-6)=125x-30

Mathematics

1 answer:

Dahasolnce [82]3 years ago

7 0

Answer:

distributive property

Step-by-step explanation:

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What is the answer 1 plus 1

AnnZ [28]

Answer:

the answer is 4, just kidding it's 2

Step-by-step explanation:

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3 years ago

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Helppp !! what is the domain of the function shown in the table?

Ugo [173]

Answer:

D is the correct answer i think

Step-by-step explanation:

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3 years ago

Brian correctly use a method of completing the square to solve the equation X a 2nd plus 7X -11 equals zero Brian‘s first step w

ArbitrLikvidat [17]

Answer:

$(\frac{7}{2})^{2}$

Step-by-step explanation:

Brain correctly use a method of completing the square to solve the equation:

$x^2+7x-11=0$

His First Step is to: Take the Constant Term to the Right Hand Side

$x^2+7x=11$

The Next Step Would be to:

Divide the Coefficient of x by 2
Square It
Add it to both Sides

In this case, the Coefficient of x = 7

Divided by 2 = $\frac{7}{2}$

Squaring It, we have: $(\frac{7}{2})^{2}$

It is this number $(\frac{7}{2})^{2}$ that is added to both sides in the manner below:

$x^2+7x+(\frac{7}{2})^{2}=11+(\frac{7}{2})^{2}$

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4 years ago

The total age of two sisters is 108 years

tester [92]

Answer:

7 : 5

Step-by-step explanation:

let the age of the younger be x , then the older is x + 18, thus

x + x + 18 = 108, that is

2x + 18 = 108 ( subtract 18 from both sides )

2x = 90 ( divide both sides by 2 )

x = 45

Thus younger is 45 and older is 45 + 18 = 63

ratio older : younger = 63 : 45 = 7 : 5

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3 years ago

(( all - Same )) ----- Quadrilaterals are polygons

Marina CMI [18]

Answer:

yes

Step-by-step explanation:

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4 years ago