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2 years ago

What is the answer to (4.575 ÷ 275) × 2

Mathematics

1 answer:

const2013 [10]2 years ago

6 0

Answer:

0.0334

Step-by-step explanation:

(4.575 ÷ 275) × 2

0.0167 * 2

Hope this helps!

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What is a counterexample for "subtraction of whole numbers is commutative" ??

devlian [24]

The commutatice property for addition says a+b=b+a
If it was for subtraction, then it would be a-b=b-a
Take a=7 and b=5
7-5 is not equal to 5-7
2 is not equal to -2
So subtraction is not commutative for whole numbers.

Hope this helps :)

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3 years ago

4150 people show up to watch the tiger eat on most days. Today there were 15% few people. How many people were there today?

bonufazy [111]

Answer: 622

Step-by-step explanation:

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3 years ago

5x + 3y = -2<br> 3x + 2y = -1

Effectus [21]

Answer:

(-1,1)

Step-by-step explanation:

5x+2y= -2, x= -1/3 - 2/3y

5( -1/3 - 2/3y) +3y= -2

y= 1

x= -1/3 - 2/3 × 1

x= -1

7 0

3 years ago

Read 2 more answers

How many solutions does this equation have?

laiz [17]

C) Exactly two solutions

7 0

3 years ago

Read 2 more answers

Write y = x2 + 24x + 144 as a square of binomial.

irina1246 [14]

Answer:

$y=(x+12)^2\\$

Step-by-step explanation:

To write a quadratic equation into binomial form we can compare the equation into the completing square form of a quadratic equation like this ,

$y=a(x-h)^2+k$

now since,

$y=x^2+24x+144$

we can equate both the equations from left hand side to right hand side like this,

$x^2+24x+144=a(x-h)^2+k\\$

now we solve,

$x^2+24x+144=a(x-h)^2+k\\x^2+24x+144=a((x)^2-2(x)(h)+(h)^2)+k\\x^2+24x+144=a(x^2-2hx+h^2)+k\\x^2+24x+144=ax^2-2ahx+ah^2+k\\$

now we compare the coefficients of x^2:

$1 = a\\$

now we compare the coefficients of x :

$24=-2ah\\24=-2(1)h\\24=-2h\\\frac{24}{-2}=h\\-12=h\\$

now we compare the constants , (constants are the letters which are not associated with any variable in this case the variable is x)

$144 = ah^2+k\\144=(1)(-12)^2+k\\144=(1)(144)+k\\144=144+k\\144-144=k\\0=k\\$

so now the value we got all the values for the completing square form we plug those in , a = 1 , h = -12 , k = 0 ,

$y=a(x-h)^2+k\\y=1(x-(-12))^2+0\\y=(x+12)^2\\$

this is the square of a binomial, if you want to verify if we expands this formula by the formula of (a + b)^2 we would get the same result. Thus this is the correct answer.

5 0

3 years ago