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2 years ago

14

Plz answer asap thanks

2 answers:

Nady [450]2 years ago

7 0

So basically you know that 25 x 17 is 425. So all you would do is estimate! It's super simple. Just do 25 x 17, then put your estimate in the estimate box. 5 or higher it goes up, 4 or lower it goes down, so for your estimate I would probably put 430. Hope this helps! :)

valina [46]2 years ago

3 0

The answer is to the problem is 420

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See question in attached photo.

statuscvo [17]

9514 1404 393

Answer:

(a, b) = (-2, -1)

Step-by-step explanation:

The transpose of the given matrix is ...

$A^T=\left[\begin{array}{ccc}1&2&a\\2&1&2\\2&-2&b\end{array}\right]$

Then the [3,1] term of the product is ...

$(A\cdot A^T)_{31}=\left[\begin{array}{ccc}a&2&b\end{array}\right]\cdot\left[\begin{array}{ccc}1&2&2\end{array}\right]=a+2b+4$

and the [3,2] term is ...

$(A\cdot A^T)_{32}=\left[\begin{array}{ccc}a&2&b\end{array}\right]\cdot\left[\begin{array}{ccc}2&1&-2\end{array}\right]=2a-2b+2$

Both of these terms in the product matrix are 0. We can solve the system of equations by adding these two terms:

(a +2b +4) +(2a -2b +2) = (0) +(0)

3a +6 = 0

a = -2

Substituting for 'a' in term [3,1] gives ...

-2 +2b +4 = 0

b = -1

The ordered pair (a, b) is (-2, -1).

8 0

2 years ago

Divide and simplify<br><br> 16 lb 5 oz ÷ 3

natta225 [31]

Answer:

87 oz

Step-by-step explanation:

16 lb = 256 oz

256 + 5 = 261

261/3 = 87

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3 years ago

What is the quotient?<br> t+3/t+4

leva [86]

Answer:

$\frac{t + 3}{t + 4} = 1 - \frac{1}{t + 4}$

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3 years ago

Helpppppppppppppppppppppppppppppppppppppppppppp

Anestetic [448]

1.-36

2.-22.06

3.-42.1

You welcome :)

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2 years ago

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In a certain city in France, they gain 2 minutes of daylight each day after the spring equinox (usually in March), but after the

maxonik [38]

Answer: im notsure

Step-by-step explanation:

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2 years ago