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Sever21 [200]
2 years ago
10

Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the estimate using front-end estimation?

Mathematics
1 answer:
storchak [24]2 years ago
8 0

Answer:

I believe its Negative 21 divided by 5

Step-by-step explanation:

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Answer:

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3 years ago
2x+y=21;y=-2x+21<br>please hurry I need this straight away​
Nastasia [14]

Step-by-step explanation:

2x + y = 21

Solving

2x + y = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1y' to each side of the equation.

2x + y + -1y = 21 + -1y

Combine like terms: y + -1y = 0

2x + 0 = 21 + -1y

2x = 21 + -1y

Divide each side by '2'.

x = 10.5 + -0.5y

Simplifying

x = 10.5 + -0.5y

7 0
3 years ago
Classifly each number as rational or irrational ​
Artist 52 [7]

Answer:

what numbers

Step-by-step explanation:

4 0
3 years ago
Help me please, will give brainliest
ANTONII [103]

A\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]

B\left[\begin{array}{ccc}3&-5&3\\2&3&1\\4&1&-3\end{array}\right]

Now,\\\\2B-A\\\\2\left[\begin{array}{ccc}3&-5&3\\2&3&1\\4&1&-3\end{array}\right]-\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]\\\\=\left[\begin{array}{ccc}6&-10&6\\4&6&2\\8&2&-6\end{array}\right] -\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]\\\\=\left[\begin{array}{ccc}5&-10&1\\4&11&-5\\8&-1&-2\end{array}\right]

Row 1 column 2(a12)=-10

Hence,-10 is your answer.

6 0
2 years ago
What does this mean?
ratelena [41]

The last one is the answer.

4.04 × 10⁸, because 4.04 > 2.51

5 0
3 years ago
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