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enyata [817]
3 years ago
6

The dimensions of a room are 8 m, 6 m and 5 m. Find the cost of

Mathematics
1 answer:
fredd [130]3 years ago
5 0

Answer:

assuming no doors or windows & that 5m is height:

4 walls = 4.67

roof = 2.4

Step-by-step explanation:

area of walls = 2(8x5)+2(6x5) = 140 m^2

140/30 = 4.67

area of roof = 8x6 = 48 m^2

48/20 = 2.4

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Select the correct answer from each drop-down menu.
sdas [7]

The graph described is the graph of a quadratic function.

The x-intercept of the function is at; (8, 0).

<h3>What type of function is described by the graph?</h3>

It follows from the description box of the graph that it begins in the third quadrant, and rises through a series of points in the first quadrant before it exits the first quadrant.

Hence, it follows that the graph is a quadratic function and its x-intercept is at point; (8,0).

Read more on intercept;

brainly.com/question/1884491

#SPJ1

3 0
3 years ago
The diagram shows a triangle on top of a rectangle. The combined area of the triangle and rectangle is 108 ft2
podryga [215]

Answer:

6 ft

Step-by-step explanation:

A=1/2bh. To find the area of the triangle, we subtract the area of the rectangle from the total. Which would be 108 - (12x6) = 36. Now we have the area. So, 36 = 1/2bh. "b", the base is 12. So we solve for h. h = (36x2)/12 or h = 36/6, which both equal 6.

3 0
3 years ago
Just need the answer please
Kisachek [45]

Answer:

19.34cm

Step-by-step explanation:

Rigth Angled triangle

use SOHCAHTOA

Cos°=adj/hyp

Cos 71=6.3/BC

BC=6.3/COS 71

COS 71°= 0.3256

BC=6.3/0.3256

BC= 19.34cm

3 0
3 years ago
Which measurement is equivalent to 47 mL?
Gennadij [26K]
We have that
47 ml

we know that
1 lt------------> 1000 ml
X lt -------------> 47 ml
X=47/1000--------> x=0.047 lt

the answer is the option
D: 0.047 L
8 0
3 years ago
What are all of the real roots of the following polynomial?
spayn [35]

Answer:

C. -3, -2, 2, and 3

Step-by-step explanation:

x⁴ - 13x² + 36 = 0

(x²-4) (x²-9) = (x+2)(x-2)(x+3)(x-3) =0

x = 2 or x = -2 or x = 3 and or x = -3

8 0
3 years ago
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