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3 years ago

AC=A, C, equals Round your answer to the nearest hundredth.

Mathematics

1 answer:

DanielleElmas [232]3 years ago

8 0

Answer:

We have the equation A*C = A

Now, as both sides of the equality are the same thing, we can do the same operation to both sides and the equality will remain true.

We can divide both sides by A and get:

(A*C)/A = A/A

C = 1

So here we finded the value of A.

If A and C are matrices, then C is the identity matrix.

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4) You randomly select one card from a 52-card deck. Find the probability of selecting the 6 of hearts or the ace of diamonds.

MakcuM [25]

Answer:

1/26

Step-by-step explanation:

There is only one 6 of hearts and only one ace of diamonds.

The probability of selecting the 6 of hearts is thus 1/52, and that of selecting the ace of diamonds is also 1/52.

The probability of selecting the 6 of hearts or the ace of diamonds is the SUM of these two results: 1/52 + 1/52 = 2/52 = 1/26.

8 0

3 years ago

Read 2 more answers

What is the equation of the line that is parallel to the line y - 1 =4(x+3)? no links.

Misha Larkins [42]

Answer:

4th option

Step-by-step explanation:

The slope m = 4

b = 32-(4×4) = 16

y = mx+b

or, y = 4x+16

Answered by GAUTHMATH

3 0

3 years ago

Which of the following is an example of a statistic? a.) A value used to represent a population b.) Standard deviation of all fi

natita [175]

Answer:

Step-by-step explanation:

statistic is a number that represents as numerical data

. An example of statistics is a report of numbers saying how many followers of each religion there are in a particular country.

6 0

3 years ago

The diagram shows a lawn with a fence along one edge

Pepsi [2]

Answer:

£59.25

Step-by-step explanation:

17²-8²=225

√225=15

1/2(12+20)×15=240m²

240÷100=2.4

3×19.75=£59.25

6 0

3 years ago

A rectangular retaining wall has an area of

Veronika [31]

Answer:

The height of wall is 3 feet and length of wall is 5 feet

Step-by-step explanation:

Given as :

The Area of retaining wall = 15 square feet

Let The width of wall = W feet

The Height of wall = ( W - 2 ) feet

Now, Area of Rectangle = Height width

Or , 15 ft² = ( W - 2 ) ft × W ft

Or, 15 = W² - 2 W

Or, W² - 2 W - 15 = 0

Or, W² - 5 W + 3 W - 15 = 0

Or, W ( W - 5 ) + 3 ( W - 5 ) = 0

So , ( W - 5 ) ( W + 3 ) = 0

So, W = 5 , - 3

∴ The width of wall = W = 5 feet

And The Height of wall = ( W - 2 ) = 5 - 2 = 3 feet

Hence The height of wall is 3 feet and length of wall is 5 feet. Answer

8 0

3 years ago