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hjlf
3 years ago
15

What the questions are asking help ASAP please

Mathematics
1 answer:
Rudiy273 years ago
3 0

Answer:

Step-by-step explanation:

A scalar is a constant value that is multiplied throughout a matrix.

e.g.

In number 1 the set up would look like this

3 * \left[\begin{array}{ccc}3&-1&5\\2&1&-4\\-6&3&2\end{array}\right]

To solve this, you must distribute the 3 to each value within the matrix

The solution to #1 would be

M = \left[\begin{array}{ccc}9&-3&15\\6&3&-12\\-18&9&6\end{array}\right]

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A marketing firm tracks data on grocery store visits. In one study, it finds that the probability that a shopper buys bread duri
timurjin [86]

Answer:

Option B.

Step-by-step explanation:

Two events are said to be independent of each other, if the probability of one event ocurrin in not way affects the probability of the other event occurring.

The interception of two independent events P(A ∩ B) = P(A) × P(B), where:

P(A) = 0.70

P(B) = 0.20

P(A ∩ B) = P(A) × P(B) = 0.70x0.20 = 0.14

The two events are independent if the probability of buying Bread AND cheese equals: 0.14, which is Option B.

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3 years ago
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3 years ago
Total Number of Fish in Tank
ikadub [295]

Answer:

Look it up. it will help you work it out. hope this helped.

Step-by-step explanation:

8 0
3 years ago
A scale model of a bicycle has a scale of 1 : 10. The real bicycle has a length of 1.6 m. What is the length of the model in cm?
garri49 [273]

Answer:

16 cm

Step-by-step explanation:

1.6 m = 160 cm

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7 0
3 years ago
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Help me please. I kinda need it right now.!
Maru [420]

Step-by-step explanation:

Given

5y - 4 = 126(corresponding \: angles) \\ 5y = 126 + 4 \\ 5y = 130 \\ y = 130  \div 5 \\  = 26

Also given

126 + (6z + 6) = 180(angles \:  on \: a \: straight \: line) \\ 132 + 6z = 180 \\ 6z = 18 0 - 132 \\ 6z = 48 \\ z = 48 \div 6 \\  = 8

Lastly,

x = 180 - 126 \\  = 54(angles \: on \: the \: same \: straight \: line \: and \: corresponding \: angles)

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