3 years ago

The sum of a rational number and odd integer is rational.

Mathematics

1 answer:

Alika [10]3 years ago

7 0

The answer should be A because a rational # is a # that can be put in a fraction.

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X^2-10x+27 in the form (x-a)^2+B

Irina18 [472]

Answer:

(x-5)^2+2

Step-by-step explanation:

To convert between standard and vertex form, you have to complete the square (which, as a reminder, (a+b)^2 = a^2+2ab+b^2).

Since a^2 is x^2, and 2ab is -10x, then b must be -5, so b^2 is 25. Therefore, we add and subtract 25 from the expression:

(x-10x+25)+27-25

Then, we can make (x-10x+25) to (x-5)^2:

(x-5)^2+2

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4 years ago

Write the equation of this circle in standard form. A) (x - 2)2 + (y - 3)2 = 4

Vika [28.1K]

Answer:

$x^2 + y^2 -4x -6y + 9 = 0$

Step-by-step explanation:

To write a circle in standard form, expand the equation of the circle and move all terms to one side.

$(x-2)^2 + (y-3)^2 = 4\\x^2 -4x + 4 + y^2 -6y + 9 = 4\\x^2 +y^2 - 4x - 6y + 13 = 4\\x^2 + y^2 -4x -6y + 9 = 0$

8 0

3 years ago

Three fifths of the sum of thirteen and six

professor190 [17]

Answer:

11.4

Step-by-step explanation:

6 0

3 years ago

Can someone explain this to me?

bekas [8.4K]

Answer:

see below

Step-by-step explanation:

A) 12

B) 2

C)total number of brothers: 16 + 30 + 21 + 36 = 103 103 / 50 = 2.06

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4 years ago

Carina spent a total of $5.27 buying a pineapple for $3.40 and some tomatoes that were on sale for $0.85 per pound. To determine

algol13

Answer:

Step-by-step explanation:

5.27=3.40+.85x

1.87=.85x

2.2=x

7 0

3 years ago