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1 year ago

Order these numbers from least to greatest. 6.2052, 6.2, 6.75, 6.705

Mathematics

1 answer:

Ad libitum [116K]1 year ago

7 0

Answer:

6.2 , 6.2052 , 6.705 , 6.75

Step-by-step explanation:

Least to Greatest!

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What is the value of x in the recntangle (2 1/2+ X) cm and 2 1/2 cm

vaieri [72.5K]

Answer:

Step-by-step explanation:

Given that:

Length (l) = 13 cm

Width (w) = 8 cm

Perimeter of the rectangle = 2(l + w) units

P = 2(13 + 8)

P = 2 (21)

P = 42

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2 years ago

If A is nonsingular, then (AT )-1 =(A-1) T . (a) Verify this theorem for 2 × 2 matrices

kipiarov [429]

Answer:

Verified

Step-by-step explanation:

Let the 2x2 matrix A be in the form of:

$\left[\begin{array}{cc}a&b\\c&d\end{array}\right]$

Where det(A) = ad - bc # 0 so A is nonsingular:

Then the transposed version of A is

$A^T = \left[\begin{array}{cc}a&c\\b&d\end{array}\right]$

Then the inverted version of transposed A is

$(A^T)^{-1} = \frac{1}{ad - cb} \left[\begin{array}{cc}a&-c\\-b&d\end{array}\right]$

The inverted version of A is:

$A^{-1} = \frac{1}{ad - bc}\left[\begin{array}{cc}a&-b\\-c&d\end{array}\right]$

The transposed version of inverted A is:

$(A^{-1})^T = \frac{1}{ad - bc}\left[\begin{array}{cc}a&-c\\-b&d\end{array}\right]$

We can see that

$(A^T)^{-1} = (A^{-1})^T$

So this theorem is true for 2 x 2 matrices

3 0

3 years ago

Translate the sentence into an inequality. Twice x is less than or equal to - 18.

Sergio039 [100]

Answer:

$2x\leq -18$

Step-by-step explanation:

$2x \leq -18$

the first side is

twice x

2 times x

the symbol means less than or equal to

and finally we have the -18

5 0

2 years ago

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3/7•d=9/14 in this Problem you want to find what d equals

sertanlavr [38]

→ Chapter : Fractions ←
≡ We know that:
⇔ $(\frac{a}{b}) \div (\frac{c}{d})=(\frac{a}{b}) \times (\frac{d}{c})$

≡ Solution:
⇒ $(\frac{3}{7}) \times (d)=\frac{9}{14}$
⇒ $d=(\frac{9}{14}) \div (\frac{3}{7})$
⇒ $d=(\frac{9}{14}) \times (\frac{7}{3})$
∴ $\boxed{\frac{3}{2}}$

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2 years ago

-2(7 – y) +4= -4 How do you solve this

finlep [7]

The answer to this question is y=3

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2 years ago

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