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3 years ago

Name the property that is being demonstrated

Mathematics

2 answers:

otez555 [7]3 years ago

6 0

Answer:

<h3> Commutative property </h3>

Step-by-step explanation:

The "Commutative Laws" say: when we add we can swap numbers over and still get the same answer.

8 - 2 = (8) + (-2) = (-2) + (8) = -2 + 8

earnstyle [38]3 years ago

3 0

It’s commutative property, the way doesn’t matter because it is still the same answer!

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Which is the best buy?

olga55 [171]

Answer:

Step-by-step explanation:

When you divide each of the prices by the amount of candy bars, B is the lowest. The price for 1 candy bar with A's price is 1.75. The price for 1 candy bar for B's is 1.71. The price for 1 candy bar with C's is 1.73 and the price of 1 candy bar for D's is 1.74. Again, B has the lowest price for 1 candy bar so the correct answer is B.

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3 years ago

Read 2 more answers

What’s is the solution to the equation x to the power of 2 =16/25

skelet666 [1.2K]

Answer:

$x=\dfrac{4}{5}$

Step-by-step explanation:

The given equation is :

$x^2=\dfrac{16}{25}$

We need to find the value of x.

When the exponent 2 removes from LHS, it will shift to RHS as square root as follows :

$x=\sqrt{\dfrac{16}{25}}$

We know that, 4×4= 16 and 5×5 = 25

So,

$x=\sqrt{\dfrac{4\times 4}{5\times 5}}\\\\x=\dfrac{4}{5}$

So, the solution of the given equation is 4/5.

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3 years ago

What is the difference between an equation and expression?

inysia [295]

Answer:

An expression is a number or a combination of numbers and an equation is made up of two expressions connected by an equal sign.

Step-by-step explanation:

3 0

3 years ago

Could someone help me find the x and y

Maslowich

This triangle is a 45 - 45 - 90 triangle, making it an isosceles triangle. So, x is 13. In every isosceles right triangle, the hypotenuse is the length of each leg times the square root of 2. So, y is 13 times the square root of 2

5 0

3 years ago

Write the expression as a square of a binomial if possible: 1/9 x^2+ 2/15 x y+ 1/25 y^2

Vsevolod [243]

Answer: $\bold{\bigg(\dfrac{1}{3}x+\dfrac{1}{5}y\bigg)^2}$

<u>Step-by-step explanation:</u>

The square of the trinomial exists only if (a + b)² = a² + 2ab + b²

$\dfrac{1}{9}x^2+\dfrac{2}{15}xy+\dfrac{1}{25}y^2\\\\\\a=\sqrt{\dfrac{1}{9}x^2}=\dfrac{1}{3}x\\\\\\b=\sqrt{\dfrac{1}{25}y^2}=\dfrac{1}{5}y\\\\\\2\cdot a\cdot b=2\cdot \dfrac{1}{3}x\cdot \dfrac{1}{5}y = \dfrac{2}{15}xy\\\\\text{So, }\dfrac{1}{9}x^2+\dfrac{2}{15}xy+\dfrac{1}{25}y^2=\bigg(\dfrac{1}{3}x+\dfrac{1}{5}y\bigg)^2\\$

4 0

3 years ago