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Vinvika [58]
3 years ago
11

How many minutes margo practices her flute in one week

Mathematics
1 answer:
Vinvika [58]3 years ago
4 0

Answer:

15 * 7 = 105 minute

hope this helps :) pls brainlest if helps

Step-by-step explanation:

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Solve mathematics question, in photo. :)
Jlenok [28]
(0,4) is the correct answer.
7 0
3 years ago
A rock is thrown upward with a velocity of 17 meters per second from the top of a 31 meter high cliff and it missies the cliff o
Vinvika [58]

Answer:

4.5\ \text{s}

Step-by-step explanation:

t = Time taken

u = Initial velocity =17 m/s

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.81 m/s² = a

v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{0^2-17^2}{2\times -9.81}\\\Rightarrow s=14.73\ \text{m}

Total height the rock is to fall when it is 8 meters from the ground is 14.73+(31-8)=37.73\ \text{m}

v=u+at\\\Rightarrow t=\dfrac{v-u}{a}\\\Rightarrow t=\dfrac{0-17}{-9.81}\\\Rightarrow t=1.73\ \text{s}

Time taken to reach the maximum height is 1.73 s.

s=ut+\dfrac{1}{2}at^2\\\Rightarrow 37.73=0+\dfrac{1}{2}\times 9.81t^2\\\Rightarrow t=\sqrt{\dfrac{37.76\times 2}{9.81}}\\\Rightarrow t=2.77\ \text{s}

Time taken from the maximum height to the point which is 8 m from the ground is 2.77 s.

So, time taken from the moment of the throw to the point 8 m from the ground is 1.73+2.77=4.5\ \text{s}.

5 0
3 years ago
Simplify 3(x-1) + 7.<br> 0. 3x +4<br> b. 2x+3<br> c. 2x7<br> d. -4x + 5
Paul [167]

Answer:

3x + 4

Step-by-step explanation:

Step  1  :

Equation at the end of step  1  :

 3 • (x - 1) +  7

Step  2  :

Final result :

 3x + 4

Processing ends successfully

plz mark me as brainliest :)

7 0
3 years ago
Read 2 more answers
.Please Help.
Ber [7]

Answer: width = 72.50 m

Step-by-step explanation:

P = 2l + 2w

425 = 2( 140 ) + 2w

425 - 280 = 2w

145 = 2w

w = 72.50

5 0
3 years ago
Read 2 more answers
Using the numbers 8, 6, 4, and 2 write an expression that equals 32
Andrej [43]
The expression is 8(6-4)•2 .
5 0
4 years ago
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