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3 years ago

somebody help pls Complete the table by filling in the multiplicative inverse of the numbers below 2,1/5,-4,

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

Answer:

Suppose we have a random number A.

The multiplicative inverse of A is a number X such that:

A*X = 1

When we work with real numbers, X = 1/A

Then:

A*(1/A) = A/A = 1

This means that (1/A) is the multiplicative inverse of A.

Where we need to have A ≠ 0, because we can not divide by 0.

Now we want to find the multiplicative inverse of the numbers:

2: Here the inverse is (1/2) = 0.5

1/5: Here the inverse is (1/(1/5)) = (5/1) = 5

-4: Herre the inverse is (1/(-4)) = -(1/4) = -0.25

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mr kato's closet contains 10 neckties there is ratio of 2 neckties to 3 shirts in the closet how many shirts does mr kato have i

slega [8]

10 divided by 2=5
5 times 3 is 15
15 shirts

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3 years ago

Which choice is equivalent to the product below?

Crank

Answer:

2√21

Step-by-step explanation:

1) Simplify.

√84

2) Simplify √84 to 2√21.

2√21

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2 years ago

Ana uses the greatest common factor and the distributive property to rewrite this sum:

creativ13 [48]

Your equation or notation would be: 12(6+5)

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3 years ago

Julia's service charge at a beauty salon was $72.60, before tax. The sales tax rate was 8%. If she added 20% of the amount befor

Ivan

Service charge for Julia at a beauty salon = $72.60
The rate of sales tax taken = 8%
Percentage of tips she added to the service charge before sales tax = 20%
Then amount of tips given by Julia = (20/100) * 72.60
   = (1/5) * 72.60
   = 14.52 dollars
Then the amount in total paid by Julia before adding service tax = (72.60 + 14.52) dollars
      = 87.12 dollars
Now the sales tax of 8% has to be calculated on the amount of $87.12.
Then
Amount of sales tax given by Julia = (8/100) * 87.12
   = 696.96/100
   = 6.969
   = 6.97 dollars
So the total amount paid by Julia for the service at the salon = (87.12 + 6.97) dollars
   = 94.07 dollars
Julia paid a total of $94.07 for the service she received at the salon.

5 0

3 years ago

Really need help guys!<br> Love you if you can solve them wiz steps!!!!

Marta_Voda [28]

Answer:

Step-by-step explanation:

$x^2+y^2-8x+4y+4=0\\\\a)\\\\x^2-8x+y^2+4y+4=0\\\\x^2-2*x*4+(y^2+2*y*2+2^2)=0\\\\x^2-2*x*4+4^2+(y+2)^2=4^2\\\\(x-4)^2+(y+2)^2=4^2\\$

Hence,

The radius of the circle is 4 units, coordinates of its centre are (4,-2).

$b)\\\\y=0\\x^2+0^2-8x+4*0+4=0\\x^2-8x+4=0\\a=1\ \ \ \ b=-8\ \ \ \ c=4\\D=(-8)^2-4*1*4\\D=64-14\\D=48\\\sqrt{D}=\sqrt{48} \\ \sqrt{D}=\sqrt{16*3} \\\sqrt{D}=\sqrt{4^2*3} \\\sqrt{D}=4\sqrt{3} \\\displaystyle\\x=\frac{-(-8)б4\sqrt{3} }{2*1} \\\\x=\frac{8б4\sqrt{3} }{2} \\x_1=4-2\sqrt{3} \\x_2=4+2\sqrt{3}$

$c)\\\\A(6,2\sqrt{3}-2)\\ (x-4)^2+(y+2)^2=4^2\\(6-4)^2+(2\sqrt{3} -2+2)^2=16\\2^2+(2\sqrt{3} )^2=16\\4+2^2*(\sqrt{3})^2=16\\ 4+4*3=16\\4+12=16\\16\equiv16$

$d)\\A(6,2\sqrt{3}-2)}\\\sqrt{3} x+3y=\\\sqrt{3}(6)+3(2\sqrt{3} -2)=\\ 6\sqrt{3}+6\sqrt{3} -6=\\ 12\sqrt{3}-6$

5 0

1 year ago

somebody help pls Complete the table by filling in the multiplicative inverse of the numbers below 2,1/5,-4,​

somebody help pls Complete the table by filling in the multiplicative inverse of the numbers below 2,1/5,-4,