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3 years ago

Is 36z^2 - 9 a difference of squares?

Mathematics

1 answer:

Dvinal [7]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

A difference of squares has the form a² - b² = (a - b)(a + b)

note that 36z² = (6z)² ⇒ a = 6z and 9 = 3² ⇒ b = 3

36z² - 9 is a difference of squares and factors as (6z - 3)(6z + 3)

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Triangle ABC is an equilateral triangle with side AB, BC, and AC. If side BC is equal to 10 cm what is the measure of side AC?

nordsb [41]

Answer:

AC = 10 cm

Step-by-step explanation:

We are givne with a triangle ABC is an equilateral triangle with side AB, BC, and AC. We are given that side BC is equal to 10 cm . We are required to find the measurement of side AC.

The basic property of any equilateral triangle is that all the sides are equal. Hence

AB = BC = CA

BC=10 cm

Hence, AB = 10 cm and also AC=10 cm

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3 years ago

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vichka [17]

Answer:

Step-by-step explanation:

A percentage is divided by 100 to get it's decimal form. So 400/100 = 4.0

Now you take the value given and multiply it by the percentage in decimal form.

So in this case.

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2 years ago

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Allushta [10]

Answer:

The number 1.256 is A)rational number.

Step-by-step explanation:

A whole number is a non-negative number without any digits behind the decimal.

An integer is a set of negative and non negative numbers that don't have any digits behind the decimal.

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Here, 1.256 is a fraction of whole numbers 1256 and 1000 , so it is a rational no.

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But since it has digits behind the decimal it is neither a whole number, or an integer.

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3 years ago

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sdas [7]

Answer:

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Step-by-step explanation:

every time x goes up by one you add 5 to y

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Mila [183]

Answer:

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Step-by-step explanation:

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2 years ago

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