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3 years ago

What is 21 grains to grams?

Mathematics

1 answer:

masya89 [10]3 years ago

6 0

Answer:

Step-by-step explanation:The answr is 1.36078

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For the following linear system, put the augmented coefficient matrix into reduced row-echelon form.

guapka [62]

The augmented matrix is

$\left[\begin{array}{ccccc|c}1&-2&3&2&1&10\\2&-4&8&3&10&7\\3&-6&10&6&5&27\end{array}\right]$

Add -2(row 1) to row 2, and add -3(row 1) to row 3:

$\left[\begin{array}{ccccc|c}1&-2&3&2&1&10\\0&0&1&-1&8&-13\\0&0&1&0&2&-3\end{array}\right]$

Add -1(row 2) to row 3:

$\left[\begin{array}{ccccc|c}1&-2&3&2&1&10\\0&0&1&-1&8&-13\\0&0&0&1&-6&10\end{array}\right]$

Add row 3 to row 2:

$\left[\begin{array}{ccccc|c}1&-2&3&2&1&10\\0&0&1&0&2&-3\\0&0&0&1&-6&10\end{array}\right]$

Add -3(row 2) to row 1, and add -2(row 3) to row 1:

$\left[\begin{array}{ccccc|c}1&-2&0&0&7&-1\\0&0&1&0&2&-3\\0&0&0&1&-6&10\end{array}\right]$

7 0

3 years ago

Which expression is equivalent to 512 in exponential form?

OleMash [197]

Answer:

a)2*2*2*2*2*2*2*2*2

Step-by-step explanation:

it wouldn't be done 2*9 but exactly how it is written like

2 by the power of 9

3 0

3 years ago

Diana owns a novelty shop in downtownSan Antonio. She ordered a shipment of48 party hats. Of the 48 hats that sheordered, 25% we

ioda

We can calcualte the number of blue hats by multiplying the total number of hats (n=48) by the proportion of blue hats (p=25%=0.25).

Then:

$B=n\cdot p=48\cdot0.25=12$

There are 12 blue hats.

3 0

2 years ago

If (3x2 + 22x + 7) ÷(x + 7) = 3x + 1, then (x + 7)( ) = . The check of the polynomial division problem shows that the product of

azamat

Answer:

$(x + 7) * (3x + 1) = (3x^2 + 22x + 7)$

Step-by-step explanation:

Given

$(3x^2 + 22x + 7) \div (x + 7) = 3x + 1$

$(x + 7) * (\ ) = [\ ]$

Required

Complete the blanks

We have:

$(3x^2 + 22x + 7) \div (x + 7) = 3x + 1$

Rewrite as:

$\frac{(3x^2 + 22x + 7) }{ (x + 7)} = 3x + 1$

Cross multiply

$(x + 7) * (3x + 1) = (3x^2 + 22x + 7)$

8 0

3 years ago

Read 2 more answers

2) Use the distributive property to rewrite: 3x + 3y

Naily [24]

Answer:

3(x+y)

Step-by-step explanation:

3(x+y)

distribute

3x+3y

3 0

3 years ago