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3 years ago

How far is 0, 7 from the origin

Mathematics

1 answer:

Delvig [45]3 years ago

5 0

Answer:

Step-by-step explanation:

Count the numbers in between (0,0) and (0,7).

You might be interested in

Write as an expression and simplify

Alexus [3.1K]

Answer:

Part a) $(2m+7n)(2m-7n)$

Part b) $x^2-16xy+64y^2$

Part c) $216a^3b^6$

Part d) $(a^2-b^2)$

Step-by-step explanation:

Part a) The difference of the squares of 2m and 7n.

we know that

The difference of the squares formula is equal to

$(a^2-b^2)=(a+b)(a-b)$

substitute

$(2m)^2-(7n)^2=(2m+7n)(2m-7n)$

Part b) The square of the difference of x and 8y

The formula of the square of the difference between two numbers is equal to

$(a-b)^2=a^2-2ab+b^2$

substitute

$(x-8y)^2=x^2-2(x)(8y)+(8y)^2=x^2-16xy+64y^2$

Part c) The tripled product of 6a and b^2

we have

$(6ab^{2})(6ab^{2})(6ab^{2})=(6ab^{2})^3=(6^3)(a^3)(b^{2})^3=216a^3b^6$

Part d) The product of the sum of a and b and their difference

The expression is equal to

$(a+b)(a-b)$

The expression represent the difference of the squares between a and b

$(a+b)(a-b)=(a^2-b^2)$

7 0

3 years ago

How do you know if a square root of something is rational or irrational? like i know it can be represented by a fraction or a ra

ra1l [238]

The square root of a whole number will be rational if the whole number is a perfect square (i.e 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144 etc) and irrational otherwise.

Rational number is a number that can be described as m/n

so a fraction can be a rational number, 0.8=4/5
Irrational numbers can't be written as a fraction

The part about the number having to be a perfect square is still correct, if it's not a prefect square than it will just keep going(a decimal that never ends)

for example the square root of 0.64 is 0.8
and the square root of 10 is 3.162277...
as you can see the 0.64 one ends and is rational, whereas the 10 one just keeps going and is irrational.

5 0

3 years ago

What is negative 5 squared?

fiasKO [112]

Negative 5 squared is negative 25

3 0

4 years ago

Read 2 more answers

3. Jim bought 2 books yesterday. The price

natima [27]

Answer:

26.40 divided by 2 is 13.20 13.20 is your answer!