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3 years ago

What is the value of A? I’m confused on this one

Mathematics

2 answers:

IceJOKER [234]3 years ago

8 0

This is a special type of triangle, called a 30-60-90 triangle. The hypotenuse is double the shortest leg and the longest leg is the shortest leg multiplied by the square root of 3.

If the hypotenuse is 16, that means the shortest leg of the triangle is 8. Therefore, the longest leg of the triangle is $8\sqrt{3}$ .

Hope this helps!

allsm [11]3 years ago

6 0

Step-by-step explanation:

A. 16 is the answer

hope this helps you

have a nice day:)

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Rewrite the system of linear equations as a matrix equation AX = B.

iren2701 [21]

Answer:

$\left[\begin{array}{ccc}1&2&5\\1&1&1\\4&6&5\end{array}\right]*\left[\begin{array}{ccc}x1\\x2\\x3\end{array}\right]=\left[\begin{array}{ccc}5\\6\\7\end{array}\right]$

Step-by-step explanation:

Let's find the answer.

Because we have 3 equations and 3 variables (x1, x2, x3) a 3x3 matrix (A) can be constructed by using their respectively coefficients.

Equations:

Eq. 1 : x1 + 2x2 + 5x3 = 5

Eq. 2 : x1 + x2 + x3 = 6

E1. 3 : 4x1 + 6x2 + 5x3 = 7

Coefficients for x1 ; x2 ; x3

From eq. 1 : 1 ; 2 ; 5

From eq. 2 : 1 ; 1 ; 1

From eq. 3 : 4 ; 6 ; 5

So matrix A is:

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

And the vector of vriables (X) is:

$\left[\begin{array}{ccc}x1\\x2\\x3\end{array}\right]$

Now we can find the resulting vector (B) using the 'resulting values' from each equation:

$\left[\begin{array}{ccc}5\\6\\7\end{array}\right]$

In conclusion, AX=B is:

$\left[\begin{array}{ccc}1&2&5\\1&1&1\\4&6&5\end{array}\right]*\left[\begin{array}{ccc}x1\\x2\\x3\end{array}\right]=\left[\begin{array}{ccc}5\\6\\7\end{array}\right]$

7 0

4 years ago

Convert:<br> 38 inches = feet and inches all together

kirza4 [7]

Answer: 3 ft. and 2 inches

38÷12=3.2

12×3=36

38-36

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3 years ago

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A survey of 100 high school students provided this

HACTEHA [7]

Answer:

35/100

Step-by-step explanation:

You have to find how many juniors there are, so if you add 13, 20, and 2 you get 35. For the denominator you have to find the total number of students, so just add all of the numbers together to get 100. So there is a 35/100 chance that a randomly selected student is a junior.

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2 years ago

write balanced chemical equation for the process of photosynthesis giving the physical state of all the substances involved in t

RideAnS [48]

Answer:

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Step-by-step explanation:

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Shtirlitz [24]

Answer:

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