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3 years ago

The sum of a number and its opposite is 0. This is called the _ _ of addition.

Mathematics

2 answers:

Charra [1.4K]3 years ago

6 0

Identity property I believe

PIT_PIT [208]3 years ago

5 0

Inverse Property
The sum of a number and its opposite is 0. This is called the inverse property of addition.

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What is the equation of the axis of symmetry for the function shown below?

Gennadij [26K]

Answer:

x=2

Step-by-step explanation:

The axis of symmetry can be calculated using the following formula:

$Xv= \frac{-b}{2a}$

In order to use this formula, we need to have the function written in it's polynomial formula:

$f(x)=ax^{2} +bx+c$

In order to do so, we have to isolate Y from the excercise's formula.

$y=-2(x-2)^2-5$

Then we resolve the square of the binomial knowing that (a+b)^2=a^2+2.a.b+b^2

$(x-2)^2= x^2+2.x.(-2)+(-2)^2$

$(x-2)^2= x^2-4x+4$

Now we have that:

$y=-2.(x^2-4x+4)-5$

$y=-2x^2+8x-8-5$

$y=-2x^2+8x-13$

As we have now the polynomyal formula, we know that a=-2, b=8 and c=-13. We supplant on the formula and get:

$Xv= \frac{-b}{2a}$

$Xv= \frac{-8}{2.(-2)}$

$Xv= \frac{-8}{-4)}$

$Xv= 2$

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4 years ago

you are going to purchase a corvette for 60,000, the interest rate is 8% and you will be paying off the loan in 5 years what wil

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Your monthly payment will be $<span>1,216.58</span>

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3 years ago

The liquid volume of Eric's water bottle is 3 liters. What is the approximate liquid volume of 5 of these bottles in milliliters

zhuklara [117]

Answer:

15,000 milliliters

Step-by-step explanation:

The volume of Eric's water bottle = 3 liters

Now let's find the volume of the 5 bottles.

The volume of 5 Eric's water bottles = 3 liters * 5 = 15 liters

Now let's convert 15 liters in milliliters.

1 liter = 1000 milliliters

15 liters = 15 *1000 = 15,000 milliliters

The liquid volume of 5 of Eric's water bottles = 15,000 milliliters.

Thank you.

6 0

3 years ago

Read 2 more answers

Semira’s puppy weighs 12.4 pounds and is growing at a rate of 0.8 pound per week. Cedric’s puppy weighs 9.2 pounds and is growin

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3 years ago

Find the lateral and surface area of each cone

Sophie [7]

Answer:

$\large\boxed{L.A.=153\pi\ mm^2}\\\boxed{S.A.234\pi\ mm^2}$

Step-by-step explanation:

The formula of a lateral area of a cone:

$L.A.=\pi rl$

r - radius

l - slant height

The formula of a surface area of a cone:

$S.A.=\pi r^2+\pi rl$

We have r= 9mm and l = 17mm. Substitute:

$L.A.=\pi(9)(17)=153\pi\ mm^2$

$S.A.=\pi(9^2)+153\pi=81\pi+153\pi=234\pi\ mm^2$

7 0

3 years ago

The sum of a number and its opposite is 0. This is called the ___ ___ of addition.

The sum of a number and its opposite is 0. This is called the _ _ of addition.