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2 years ago

15

Express tan B as a fraction in simplest form.

1 answer:

liberstina [14]2 years ago

6 0

Answer:

4/3

Step-by-step explanation:

Tan B is defined as the opposite side divided by the adjacent side. 5 is the hypotenuse, 4 is the opposite side of angle B, and 3 is the adjacent side of angle B

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Let A be a 4 x 5 matrix and Let B be a 4 x 4 matrix. Suppose you were asked to multiply matrix A times matrix B. When multiplied

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Answer:

b. false

Step-by-step explanation:

when multiplying matrixes the number of columns of the first matrix must be equal as the number of rows of the second matrix, and since here matrix A has 4 columns but matrix B has 5 rows they can't be multiplied

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2 years ago

How many sides does a regular polygon have that has an angle of 20

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Answer:

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Step-by-step explanation:

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1 year ago

Mr. Dyer is leaning a ladder against the side of his house to repair the roof. The top of the ladder reaches the roof, which is

boyakko [2]

Answer:

5 meters.

Step-by-step explanation:

Given:

Mr. Dyer is leaning a ladder against the side of his house to repair the roof.

The top of the ladder reaches the roof, which is 3 meters high.

The base of the ladder is 4 meters away from the house, where Mr. Dyer's son is holding it steady.

Question asked:

How long is the ladder?

Solution:

<em>Here we found that a right angle triangle is formed in which base and height is given and we have to find the longest side of the triangle.</em>

Base = 4 meters

Height = 3 meters

Length of the ladder = ?

<u>By Pythagoras theorem: </u>

Square of longest side = Square of base + Square of height

$(Longest\ side)^{2} = 4^{2} +3^{2}$

$(Longest\ side)^{2} = 16+9$

$(Longest\ side)^{2} = 25$

Taking root both side :-

$\sqrt[2]{(Longest\ side)^{2} } =\sqrt[2]{25}$

$Longest\ side = \sqrt[2]{5\times5} \\ Longest\ side = 5$

Thus, length of ladder is 5 meters.

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2 years ago

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