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3 years ago

9

Mathematics

1 answer:

Murljashka [212]3 years ago

6 0

Answer:

not sure because we are not given the sample of all the bags so I can not tell for that

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Please help me with this problem

Ede4ka [16]

Answer:

vitamin c is the independent variable

Step-by-step explanation:

the amount of vitaman c dose not change but the amount of oranges eaten can change

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3 years ago

Which statement is an example of the reflexive property of congruence?

hodyreva [135]

Answer:

Step-by-step explanation:

if you look you will see that the a is first in the

alfabet I was confused first but I figured it out.

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3 years ago

What two perfect squares is the number 70 between

ludmilkaskok [199]

8² = 64 < 70 < 81 = 9²

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3 years ago

What is the gradient of the graph shown? Give your answer in its simplest form.

Masja [62]

Answer:

Step-by-step explanation:

Choose 2 points on the graph: (0, -2) and (1, 0)

$\boxed{ gradient = \frac{y _{1} - y_2 }{x_1 - x_2} }$

Gradient of graph

$= \frac{0 - ( - 2)}{ 1 - 0}$

$= \frac{0 + 2}{1}$

= 2

8 0

3 years ago

A body of mass 10kg at rest is subjected force of 16N. Find the kinetic energy at end of 20s.

777dan777 [17]

===================================

$\large \sf \underline{Problem:}$

A body of mass 10kg at rest is subjected force of 16N. Find the kinetic energy at end of 20s.

===================================

$\large \sf \underline{Answer:}$

$\huge \qquad \quad \sf{5,120 \: Joules}$

===================================

$\large \sf \underline{Solution:}$

Firstly, find the acceleration:

$\sf{A = F/m}$
$\sf{A = 16N/10kg}$
$\sf \pmb{A = 1.6m/s^2}$

Secondly, the velocity after 20 seconds will be:

$\sf{V =u+at}$
$\sf{V =0+1.6m/s^2(20s)}$
$\sf \pmb{V =32m/s}$

Lastly, find the kinetic energy:

$\sf{K=1/2mv^2}$
$\sf{K=1/2(10)(32)^2}$
$\sf{K=5(1024)}$
$\sf{\underline{\underline{\pmb{K=5120\:J}}}}$

Hence, the kinetic energy at the end is 5,120 Joules.

===================================

#LetEarthBreathe

6 0

3 years ago

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