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3 years ago

What is the area of the figure

Mathematics

2 answers:

Drupady [299]3 years ago

5 0

Hi there, just multiply all 4 numbers. 5.3*8*8*4=1356.8

oee [108]3 years ago

3 0

OK so, your shape is a pentagon, how I like to do this and how I was taught to make it easier was divide the pentagon or what ever shape it is in to smaller easier shapes like triangles and rectangles. so this one looks like a diamond. You see the part where it say 4 inches and 8 inches, well we are going to cut it off there and find the area of that first with is 4x8=32
next we are going up to where it looks like a trapezoid and we are going to divide that into a triangle and a rectangle. Lets start with the rectangle 5.3x4= 21.2 now we move on to the triangle and the formula for that id A=1/2BxH but we can find 1/2 of the H instead of 1/2 of the B (B=base H=height) so 1/2 h = 2 so 2x2.7=5.4 now we add them all together:
5.4+32+21.2= 58.6 so the answer is: 58.6 in.^2

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Use the svd() function in MATLAB to compute , the rank-1 approximation of . Clearly state what is, rounded to 4 decimal places.

Afina-wow [57]

Answer:

Here is the Matlab code.

Step-by-step explanation:

Matlab Code:

$A = [1 2 2;3 4 5;6 7 8]\\[U,S,V] = svd(A)u1 = U(:,1)\\u2 = U(:,2)\\u3 = U(:,3)\\d1 = dot(u1,u2)\\c = cross(u1,u2)\\d2 = dot(c,u3)$

$d1 =- 5.5511e-17\\c = -0.7172 0.6643 -0.2103\\d2 = 1$

Yes, since c = cross(u1,u2) is orthogonal to both u1 and u2. Hence is u3, thus the dot product with u3 is 1.

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3 years ago

Which table contains only values that satisfy the equation y = -x +7?

a_sh-v [17]

Answer:

the question you typed is wrong but that on the picture is correct and the correct table which satisfied the equation y =1/4x + 7 is table C

7 0

3 years ago

The sum of a number and its reciprocal is 5/2 Find the number and its reciprocal.

sergiy2304 [10]

Answer:

Step-by-step explanation:

Let the number be 'x'

Reciprocal = $\frac{1}{x}$

$x+\frac{1}{x}=\frac{5}{2}\\\\\frac{x*x}{1*x}+\frac{1}{x}=\frac{5}{2}\\\\\frac{x^{2}+1}{x}=\frac{5}{2}$

Cross multiply

(x² + 1) *2 = 5*x

2x² + 2 = 5x

2x² - 5x + 2 =0

Factorize the equation,

Sum = -5

Product = 4

Factors = -1 , -4

2x² - x - 4x + 2 = 0

x(2x - 1) - 2(2x - 1) = 0

(2x -1 )(x - 2) = 0

2x - 1 = 0 ; x -2 = 0

2x =1 ; x = 2

x = 1/2

Number = 2 , and its reciprocal = 1/2

6 0

3 years ago

Aaron plans to buy new flooring for his office. His office floor is a rectangle that is 7.9 meters by 6.2 meters

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He bhjjjbhggthsndbdudhdusjsjjsjhh

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3 years ago

On a sketch of a mural,3 inches represents one foot in the mural. A door in the sketch is 2 inches wide by 5 inches high. What i

grandymaker [24]

Answer:

Length of the door, l = 5 inches (in)

Width or Breadth of the door, w = 2 inches (in)

Perimeter p = 2(l + w)

= 2( 5 + 2) inches

= 2(5) inches + 2(4) inches

= 10 inches + 4 inches

= 14 inches or 14 in

Step-by-step explanation:

The perimeter of a plane shape is the measurement of the length of its outside boundary, which means the distance around its edges.

The door in the sketch is the shape of a rectangle. the distance around the edge of the door is the sum of all the sides. The longer side of a rectangle is called the length and it is usually represented by letter l while the shorter side is known as width or breadth represented by letter w and b respectively. The perimeter is calculated by the formula 2(l + w). where l means the length and w represents the width.

4 0

3 years ago