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Nataly_w [17]
2 years ago
11

A square room has a floor area of 16 square meters, the height of the room is 5 meters, what is the area of all 4 rooms?

Mathematics
1 answer:
Valentin [98]2 years ago
6 0

The area of all four room is 54 square meters

<h3>What is the total area?</h3>

A square is a quadrilateral with four equal sides and four equal angles. The diagonals bisect each other at 90°.

Area of the four rooms = area of one room x 4

= 16 x 4 = 54 square meters

To learn more about squares, please check: brainly.com/question/9030544

#SPJ1

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If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3
Cerrena [4.2K]

Answer:

v = 23

Step-by-step explanation:

Formatting the question gives;

a = mg - kv² / m

Make v subject of the formula as follows;

(i) Multiply both sides by m

ma = m²g - kv²

(ii) Collect like terms

kv² = m²g - ma

(iii) Divide through by k

v² = (m²g - ma) / k

(iv) Take the square root of both sides

v = √ [(m²g - ma) / k]            --------------(ii)

From the question:

a = 2.8

m = 12

g = 9.8

k = 8/3

Substitute these values into equation (i) as follows;

v = √ [(12²(9.8) - 12(2.8)) / (8/3)]

v = √ [(1411.2 - 33.6) / (8/3)]

v = √ [1377.6 / (8/3)]

v = √ [1377.6 x (3/8)]

v = √ [1377.6 x 3 / 8)]

v = √ [516.6]

v = 22.73

v = 23 [to the nearest whole number]

Therefore v = 23 to the nearest whole number    

3 0
3 years ago
0 hours equal 3 bacteria how many bacteria after 10 hours
Naddik [55]

Answer:

30 bacteria

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Factorization of <br>x²+6x+5​
crimeas [40]

Answer:

(x +1) (x + 5)

Step-by-step explanation:

Factorization of x²+6x+5​

To factorise this quadratic expression we'll find 2  factors of 5 that when added gives the coefficient of x which is

Factors = +1 and +5

Sum = +6, product = +5

Rewriting equation

x² + x + 5x + 5

Factorising

x ( x +1) +5 ( x + 1)

(x +1) (x + 5)

I hope this was helpful, please mark as brainliest

7 0
3 years ago
How many lines of symmetry does the picture have?<br> A. 3<br> B. 2<br> C. 1<br> D. 0
brilliants [131]

the answers is D cuz there is no line in the picture

3 0
2 years ago
Express 240 as a product of prime factors.
Sholpan [36]

Answer:

240 = 2 x 2 x 2 x 2 x 3 x 5 or 2^4x3x5

Step-by-step explanation:

               240

              /      \

            2      120                     (240 = 2 x 120)

                   /      \

                 2       60                 (120 = 2 x 60)

                        /      \

                      2       30            (60 = 30 x 2)

                             /      \

                           2       15       (30 = 2 x 15)

                                  /      \

                                3        5

6 0
3 years ago
Read 2 more answers
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