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Stels [109]
3 years ago
11

What is the answer????????????

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

43.8

Step-by-step explanation:

Remark

Are there ever a lot of assumptions!!

  • The rectangles are all the same size
  • the triangles are the same size
  • The rectangles are indeed rectangles.
  • The triangles are isosceles.
  • The two equal sides are both equal to the width of the rectangles.

Area of the rectangles

A = L * W

L = 4 m

W = 3 m

Area = 4*3 = 12

There are 3 rectangles so the total area = 3*12 = 36

Area triangles

Area = 1/2 b * h

b = 3

h = 2.6

Area = 1/2 * 2.6 * 3

Area = 1/2 7.8

But there are 2 of them so the area for the 2 is

Area = 2* 1/2 7.8

Area = 7.8

Total area = 36 + 7.8

Total area = 43.8

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MAXImum [283]
C May be the answer sorry if it is wrong.
5 0
2 years ago
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Hallar la ecuación de la recta que pasa por el punto P(-3,-1) y por el punto de intersección de las rectas 2x − y = 9 y 3x − 7y
adell [148]

Answer:

y = -1

Step-by-step explanation:

The standard form of equation of a line is y = mx+b

m is the slope

b is the y intercept

Get the coordinate of the point of interception of the line 2x - y = 9 and 3x - 7y = 19

Make y the subject of the formula in both expressions

For 2x  - y = 9

- y = 9- 2x

y = 2x - 9

Similarly for 3x - 7y = 19

-7y = 19 - 3x

7y = 3x - 19

y = 3/7 x - 19/7

Equating both expressions

2x - 9 = 3/7 x - 19/7

Multiply through ny 7

14x - 63 = 3x - 19

14x - 3x = -19 + 63

11x = 44

x = 44/11

x = 4

Since y =2x - 9

y = 2(4) - 9

y = 8-9

y = -1

Hence the coordinate of intersection is at (4, -1)

Get the equation of the line passing through (-3, -1) and (4, -1)

Slope m = -1+1/4+3

m = 0/7

m = 0

Get the intercept

Substitute m = 0 and (-3, -1) into y = mx+b

-1 = 0(-3) + b

-1 = b

b = -1

Get the required equation

Recall that y = mx + b

y = 0x + (-1)

y = -1

Hence the required equation is y = -1

4 0
2 years ago
12(4^3−6⋅3^2) solve please fast
Marrrta [24]
The answer is 291.72
3 0
3 years ago
Read 2 more answers
Just this last one left
Vlada [557]

Answer:

2240 scooter

Step-by-step explanation:

725+579+696=2000

2000*1.12=2240

7 0
3 years ago
Read 2 more answers
I don’t understand this at all
Romashka [77]

Answer:

a) the midpoint is (1.5, 2.5)

b) the line is y = -(7/3)*x + 6.

Step-by-step explanation:

a)

Suppose we have two values, A and B, the mid-value between A and B is:

(A + B)/2

Now, if we have a segment with endpoints (a, b) and (c, d), the midpoint will be in the mid-value of the x-components and the mid-value of the y-components, this means that the midpoint is:

( (c + a)/2, (b + d)/2)

a) Then if the endpoints of the segment are (-2, 1) and (5, 4), the midpoint of this segment will be:

( (-2 + 5)/2, (1 + 4)/2) = (3/2, 5/2) = (1.5, 2,5)

The midpoint of the segment is (1.5, 2.5)

b)

Now we want to find the equation of a perpendicular line to our segment, that passes through the point (1.5, 2.5).

First, if we have a line:

y = a*x + b

A perpendicular line to this one will have a slope equal to -(1/a)

So the first thing we need to do is find the slope of the graphed segment.

We know that for a line that passes through the points (a, b) and (c, d) the slope is:

slope = (c - a)/(d - b)

Then the slope of the segment is:

slope = (4 - 1)/(5 - (-2)) = 3/7

Then the slope of the perpendicular line will be:

s = -(7/3)

Then the perpendicular line will be something like:

y = -(7/3)*x + d

Now we want this line to pass through the point (1.5, 2.5), then we can replace the values of this point in the above equation, and solve for d.

2.5 = -(7/3)*1.5 + d

2.5 + (7/3)*1.5 = d = 6

Then the line is:

y = -(7/3)*x + 6

7 0
3 years ago
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