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WITCHER [35]
2 years ago
13

Find the area of each figure

Mathematics
2 answers:
prohojiy [21]2 years ago
5 0

Answer:

A=120

B=20

C=20

Total area=160 cm2

This is really weird because the numbers dont look proportional to the shape but according to the data it should be correct :/

Thepotemich [5.8K]2 years ago
5 0

Answer:

Area of A=120cm²

Area of B=20cm²

Area of C=20cm²

Total area=160cm²

Step-by-step explanation:

For A

Length(l)=15cm\\Breadth(b)=8cm\\Now,\\Area=l*b\\Area=15cm*8cm=120cm^{2}

For B

Length(l)=5cm\\Breadth=12cm -8cm=4cm\\Now,\\Area=l*b\\Area=5cm*4cm\\Area=20cm^{2}

Area of C=20cm²

Total Area=160cm²

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A ball with mass m kg is thrown upward with initial velocity 28 m/s from the roof of a building 17 m high. Neglect air resistanc
Nutka1998 [239]

a. At its maximum height, the ball has zero vertical velocity, so

-\left(28\dfrac{\rm m}{\rm s}\right)^2=2(-g)(y_{\rm max}-17\,\mathrm m)

\implies y_{\rm max}=57\,\mathrm m

b. The ball's height in the air y at time t is given according to

y=17\,\mathrm m+\left(28\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2

Solve for t when y=0:

17+28t-4.9t^2=0\implies t\approx6.3\,\mathrm s

3 0
3 years ago
Please help me! <3.
Taya2010 [7]
10.
12*3^2+36 needs to be 540
12*9+36
9+36=45
12*45=540 so
12(3^2+36)

11.
32/2^3-4 needs to be 8
32/(2^3-4)

12.
2.3^2+9*4/2 needs to be 28.58
5.29+9*4/2
(5.29+9)*4/2=28.58
(2.3^2+9)*4/2

Hope this helps :)
6 0
3 years ago
500 = 12,375 * 0.7749^(n-1)<br><br> n = ?
aleksley [76]
Divide by 12375 and take the logarithm.
.. 500/12375 = 0.7749^(n -1)
.. log(4/99) = (n -1)*log(0.7749)
.. n = 1 +log(4/99)/log(0.7749)
.. n ≈ 13.583
5 0
3 years ago
The population of Greater Accra increased by 20% and became 900,7000. The original population of the city was:
allochka39001 [22]

Answer:

the original population of the city is 7,505,833

Step-by-step explanation:

Given;

new of the population of the city, Y = 9,007,000

the percentage increase of the city, = 20% = 0.2

Let the original population of the city = X

New population, Y = X  + 0.2X

                           Y = X(1 + 0.2)

                           Y = X(1.2)

                           Y = 1.2X

                           X = Y/1.2

                           X = (9,007,000) / 1.2

                           X = 7,505,833

Therefore the original population of the city is 7,505,833

3 0
3 years ago
IMPORTANT
EastWind [94]
$75 a month. 75x12 = 900. i used 12 because that’s the number of months in a year. hope this helps
7 0
3 years ago
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