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2 years ago

Create an expression that is equivalent to 8(x+5) without using parenthese

Mathematics

2 answers:

shepuryov [24]2 years ago

8 0

Answer:

8x + 40

Step-by-step explanation:

Simply apply "distributive property" to make effective the implicit multiplication stated by 8(x+5) which reads as: the factor "8" multiplies all that is inside the parenthesis *the binomial (x+5). In this case, 8 multiplies x which is the first term of the binomial, and also multiplies the second term "5".

Distributive property therefore gives us the following:

8 (x+5) = 8x + 40

kirill115 [55]2 years ago

4 0

Answer:

8x+40

Step-by-step explanation:

8(x+5)

Distribute

8*x +8*5

8x+40

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Please help WILL GIVE BRAINLIEST! find the missing triangle measurements

dimaraw [331]

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2 years ago

Answer and how to do it

ollegr [7]

Answer:

$(x - 9)^2 + y^2 = 36$

Step-by-step explanation:

The equation of a circle in standard form is

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

You are given

$x^2 + y^2 - 18x + 45 = 0$

In order to put the equation in standard from, we need to complete the square. Since there is no y term, the y part is simply y^2, and there is no need to complete the square for y. For x, we do have an x term, so we must complete the square in x.

Start by grouping the x terms and subtracting 45 from both sides.

$x^2 - 18x + y^2 = -45$

Now we need to complete the square for x.

$x^2 - 18x ~~~~~~+ y^2 = -45$

The number that completes the square will go in the blank above, and it will also be added to the right side of the equation.

To find the number you need to add to complete the square, take the coefficient of the x term. It is -18. Divide it by 2. You get -9. Now square -9 to get 81. The number that completes the square in x is 81. Now you add it to both sides of the equation.

$x^2 - 18x + 81 + y^2 = -45 + 81$