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2 years ago

Example of equal matrix

1 answer:

3 0

Two matrices are called equal matrices if they have the same order or dimension and the corresponding elements are equal.

Suppose A and B are the matrices of equal order i × j and aij = bij, then A are B are called equal matrices.

Example: Find the value of a and x if the matrices

[

−

]

[

−

]

are equal.

Solution:

Given that,

A = B

[

−

]

[

−

]

Since A and B are equal matrices the corresponding elements are equal.

Therefore,

a = 4

x – 6 = 3

x = 3 + 6

x = 9

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Answer:

Step-by-step explanation:

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2 years ago

An object dropped from a height of 600 feet has a height, h(t), in feet after t seconds have elapsed, such that h(t)=600 - 16t^2

gulaghasi [49]

Answer:

t as a function of height h is t = √600 - h/16

The time to reach a height of 50 feet is 5.86 minutes

Step-by-step explanation:

Function for height is h(t) = 600 - 16t²

where t = time lapsed in seconds after an object is dropped from height of 600 feet

t as a function of height h

replacing the function with variable h

h = 600 - 16t²

Solving for t

Subtracting 600 from both side

h - 600 = -16t²

Divide through by -16

600 - h/ 16 = t²

Take square root of both sides

√600 - h/16 = t

Therefore, t = √600 - h/16

Time to reach height 50 feet

t = √600 - h/16

substituting h = 50 in the equation

t = √600 - 50/16

t = √550/16

t= 34.375

t = 5.86 minutes

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3 years ago

An equation is modeled. What value of x makes the equation true? Explain.

nirvana33 [79]

Answer:

B: x=-1

Step-by-step explanation:

5x+6=1

5x+6-6=1-6

simplify

divide by 5 on both sides

x=-1

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2 years ago

Use the properties of logarithms to expand the expression as a sum or difference, and/or constant multiple of logarithms. (Assum

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Answer:

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3 years ago

What I the equation in standard form of the line that passes through the points(4,-8) and has a slope of 1/4

valentinak56 [21]

Answer:

Standard form of the line with point (4,-8) and slope of 1/4 is

-x + 4 y = -36.

Step-by-step explanation:

The slope of the line equation = 1/4

The point is given as (4,-8).

Now, by POINT SLOPE formula,

The line equation with slope m nad point (x0,y0) is given as:

(y - y0) = m (x -x0)

So, the line equation here is given as

$y -(-8) = \frac{1}{4} (x -4)\\\implies 4(y + 8) = x - 4\\4 y + 32 = x - 4\\4y = x - 36$

Now, the standard form of line equation is Ax + By = C

Here, 4y = x - 36 ⇒ 4y - x = -36

or, -x + 4y = -36 is the standard form.

Hence,standard form of the line with point (4,-8) and slope of 1/4

is -x + 4y = -36.

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3 years ago

Example of equal matrix​

Example of equal matrix