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3 years ago

10

Today, she continued reading the book at the same speed. She read 10 pages in 35 minutes. How much time did she spend reading th

e book yesterday? A. 11 minutes B. 25 minutes C. 49 minutes D. 39 minutes

2 answers:

7nadin3 [17]3 years ago

6 0

Answer:

49min

Step-by-step explanation:

Blizzard [7]3 years ago

6 0

Answer:

c. 49min

Step-by-step explanation:

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Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I need the answer and the explanation/ angle name pls help this is a quiz grade

Sever21 [200]

Step-by-step explanation:

The answer is :-

x and w : Dr. Alpha was meeting up with this patient in the library.

Know why:-

Because x and w are Vertically Opposite Angles! And they are always same!

$\tt{Hope \ it \ Helps \ :D}$

8 0

3 years ago

The total number of running yards in a football game was less than 100. The inequality x < 100 represents the situation.

Aleks [24]

Answer:

sorry I'm late but it's b I'm on unit test on edge

4 0

3 years ago

skew-symmetric 3 x 3 matrices form as subspace of all 3 x 3 matrices and find a basis for this subspace.

Neporo4naja [7]

Answer:

a) ∝A ∈ W

so by subspace, W is subspace of 3 × 3 matrix

b) therefore Basis of W is

={ ${\left[\begin{array}{ccc}0&1&0\\-1&0&0\\0&0&0\end{array}\right]$ $,\left[\begin{array}{ccc}0&0&1\\0&0&0\\-1&0&0\end{array}\right]$ $,\left[\begin{array}{ccc}0&0&0\\0&0&1\\0&-1&0\end{array}\right]$ }

Step-by-step explanation:

Given the data in the question;

W = { A| Air Skew symmetric matrix}

= {A | A = -A^T }

A ; O⁻ = -O⁻^T O⁻ : Zero mstrix

O⁻ ∈ W

now let A, B ∈ W

A = -A^T B = -B^T

(A+B)^T = A^T + B^T

= -A - B

- ( A + B )

⇒ A + B = -( A + B)^T

∴ A + B ∈ W.

∝ ∈ | R

(∝.A)^T = ∝A^T

= ∝( -A)

= -( ∝A)

(∝A) = -( ∝A)^T

∴ ∝A ∈ W

so by subspace, W is subspace of 3 × 3 matrix

A ∈ W

A = -AT

A = $\left[\begin{array}{ccc}o&a&b\\-a&o&c\\-b&-c&0\end{array}\right]$

= $a\left[\begin{array}{ccc}0&1&0\\-1&0&0\\0&0&0\end{array}\right]$ $+b\left[\begin{array}{ccc}0&0&1\\0&0&0\\-1&0&0\end{array}\right]$ $+c\left[\begin{array}{ccc}0&0&0\\0&0&1\\0&-1&0\end{array}\right]$

therefore Basis of W is

={ ${\left[\begin{array}{ccc}0&1&0\\-1&0&0\\0&0&0\end{array}\right]$ $,\left[\begin{array}{ccc}0&0&1\\0&0&0\\-1&0&0\end{array}\right]$ $,\left[\begin{array}{ccc}0&0&0\\0&0&1\\0&-1&0\end{array}\right]$ }

8 0

3 years ago

If A(−2, 1), B(1, 5), C(4, 4), and D(1, 0) are the vertices of a quadrilateral, do the points form a parallelogram? Justify your

Alexandra [31]

<span>Yes, it is a parallelogram because the slope of segment AB equals the slope of segment DC, which equals negative start fraction four over three end fraction, and AD = BC = 10 units.</span>

5 0

3 years ago