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3 years ago

What is 12.4 less then the sum of 19.23 and 10.02?

1 answer:

5 0

So sum means the answer to a addition problem and less means subtract.
(19.23+10.02)-12.4= ?
29.25-12.4= 16.85

Hope this helps! If you have any questions, just ask!

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Which of the following expressions is equivalent to a perfect square?

Liula [17]

Answer:

Step-by-step explanation:

if you do the math you end up with 49 which is a perfect square of 7

3 0

2 years ago

Which expression is equivalent to (16 x Superscript 8 Baseline y Superscript negative 12 Baseline) Superscript one-half?.

loris [4]

To solve the problem we must know the Basic Rules of Exponentiation.

<h2>Basic Rules of Exponentiation</h2>

$x^ax^b = x^{(a+b)}$
$\dfrac{x^a}{x^b} = x^{(a-b)}$
$(a^a)^b =x^{(a\times b)}$
$(xy)^a = x^ay^a$

$x^{\frac{3}{4}} = \sqrt[4]{x^3}= (\sqrt[3]{x})^4$

The solution of the expression is $\dfrac{4x^4}{y^6}$ .

<h2>Explanation</h2>

Given to us

$(16x^8y^{12})^{\frac{1}{2}}$

Solution

We know that 16 can be reduced to $2^4$ ,

$=(2^4x^8y^{12})^{\frac{1}{2}}$

Using identity $(xy)^a = x^ay^a$ ,

$=(2^4)^{\frac{1}{2}}(x^8)^{\frac{1}{2}}(y^{12})^{\frac{1}{2}}$

Using identity $(a^a)^b =x^{(a\times b)}$ ,

$=(2^{4\times \frac{1}{2}})\ (x^{8\times\frac{1}{2}})\ (y^{12\times{\frac{1}{2}}})$

Solving further

$=2^2x^4y^{-6}$

Using identity $\dfrac{x^a}{x^b} = x^{(a-b)}$ ,

$=\dfrac{2^2x^4}{y^6}$

$=\dfrac{4x^4}{y^6}$

Hence, the solution of the expression is $\dfrac{4x^4}{y^6}$ .

Learn more about Exponentiation:

brainly.com/question/2193820

8 0

2 years ago

A number subtracted from 90 is three times that number

sergeinik [125]

90-n=3n
90=4n
22.5=n

Final answer 22.5

3 0

3 years ago

Read 2 more answers

Please help me its do tomorrow

PolarNik [594]

2x+3 + 3x-4 + 2x+3 + 3x-4 = 78
10x -2 = 78
10x = 80
x=8

deck is 2(8)+3 by 3(8)-4, or 19 by 20

3 0

3 years ago

The sum of two integers with different signs is 8. Give two possible intergers that fit this description

choli [55]

10+ (-2)= 8 9+(-1)=8

5 0

3 years ago

Read 2 more answers