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inn [45]
2 years ago
7

Matrices A and B shown below are equal.

Mathematics
1 answer:
bogdanovich [222]2 years ago
6 0

Answer:

-18

Step-by-step explanation:

see attachment for the figure.

If the two matrices are equal.  In this way, the amount in the upper, right-hand corner of A (which is - 18) is equivalent to the amount in the upper, right-hand corner of B, which is b₁₂

Therefore, the first answer choice (-18) is the correct one.

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kobusy [5.1K]

Answer:

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Step-by-step explanation:

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In the circle below, chord AB passes through the center of circle 0. If the radius OC is perpendicular to chord AB and has lengt
Airida [17]

Answer:

Option (C)

Step-by-step explanation:

In the given circle, AB is a chord passing through the center O.

Therefore,chord AB is a diameter of the circle and OC is the radius.

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OC⊥AB, and length of OC = 7 cm

By applying Pythagoras theorem in right ΔBOC,

BC² = OC² + OB²

BC = \sqrt{OC^{2}+OB^{2}}

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7 0
3 years ago
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3 times

Step-by-step explanation:

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What is 30% of a book with 210 pages
Masteriza [31]

Answer:

63 pages

Step-by-step explanation:

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Take 210 (pages) and multiply that by 30% or 0.3 that will give you 63. This means that 30% of the book is 63 pages

7 0
3 years ago
4/5 divided 8/7 HELP ASAP !!!
Leno4ka [110]

Answer:

7/10

Step-by-step explanation:

You can either use a calculator, or make both fractions have the denominator of 35 and change the two fractions to be,

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