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3 years ago

Explain how to multiply 5.2 times 0.6

Mathematics

1 answer:

Sonja [21]3 years ago

4 0

Answer:

3.12

Step-by-step explanation:

Line up the number in long multiplication form as usual

Multiply each digit on the top by the first to the right on the bottom

Add the products together

Place the decimal the number of digits it is collectively in front of in each factor

Example 5.2 has one behind the decimal and .6 also has one digit behind the decimal collectively that would be two digits behind the decimal.

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796+674975/778*9886= ?

Nutka1998 [239]

Exact form: 3336711069/389
Decimal form: 8577663.42 (rounded)
Mixed number form: 8577663 & 162/389

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3 years ago

Re-posting this because nobody noticed. Please somebody help me with this. Its my first time on brainly.

Svetlanka [38]

Answer:

1. Should stay the same since you can't combine any further

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3 years ago

What is the quadratic regression equation for the data set? <br><br> PLEASEE HELP ME

Soloha48 [4]

You're trying to find constants $a_0,a_1,a_2$ such that $\hat y=a_0+a_1\hat x+a_2{\hat x}^2$ . Equivalently, you're looking for the least-square solution to the following matrix equation.

$\underbrace{\begin{bmatrix}1&6&6^2\\1&3&3^2\\\vdots&\vdots&\vdots\\1&9&9^2\end{bmatrix}}_{\mathbf A}\underbrace{\begin{bmatrix}a_0\\a_1\\a_2\end{bmatrix}}_{\mathbf x}=\underbrace{\begin{bmatrix}100\\110\\\vdots\\70\end{bmatrix}}_{\mathbf b}$

To solve $\mathbf{Ax}=\mathbf b$ , multiply both sides by the transpose of $\mathbf A$ , which introduces an invertible square matrix on the LHS.

$\mathbf{Ax}=\mathbf b\implies\mathbf A^\top\mathbf{Ax}=\mathbf A^\top\mathbf b\implies\mathbf x=(\mathbf A^\top\mathbf A)^{-1}\mathbf A^\top\mathbf b$

Computing this, you'd find that

$\mathbf x=\begin{bmatrix}a_0\\a_1\\a_2\end{bmatrix}\approx\begin{bmatrix}121.119\\-3.786\\-0.175\end{bmatrix}$

which means the first choice is correct.

8 0

3 years ago

The sales revenue goes up from 2018 to 2019 by 5%. The sales revenue in 2018 was $19,800. What was the sales revenue in 2019?

Cerrena [4.2K]

Answer: $20,790

Step-by-step explanation:

The sales revenue increased by 5% from 2018 to 2019.

The sales revenue that was increased from in 2018 is $19,800 which means that the 2019 sales revenue is 5% more than $19,800.

To find the sales revenue in 2019, do the following:

= 19,800 + (19,800 * 5%)

= 19,800 + 990

= $20,790

8 0

3 years ago

Read 2 more answers

Fill in the blank to solve the equation below <br><br> 12 + 24 = 2(6 + _)

Dimas [21]

Answer:

12 + 24 = 2(6 + 12)

Step-by-step explanation:

hope this helpss :D

much appreciated if this were marked brainliest <3

4 0

3 years ago

Read 2 more answers

Explain how to multiply 5.2 times 0.6​

Explain how to multiply 5.2 times 0.6