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Oksi-84 [34.3K]
2 years ago
15

Help me pleaseeeeeeee

Mathematics
1 answer:
melisa1 [442]2 years ago
8 0

Answer:

45/28

Step-by-step explanation:

Hey There!

They want us to find the tangent of R

Remember in sohcahTOA

t - tangent

o - opposite

a - adjacent

meaning that

tan = \frac{opposite}{adjacent}

The opposite of angle r is 45

the adjacent of angle r is 28

so tanR=\frac{45}{28}

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Cylinder a has a mass of 3 kg and cylinder b has a mass of 8 kg. Determine the speed of a after it has moved 2 m starting from r
german

The rate of change of an object's velocity with respect to time is defined as acceleration. The speed of a after it has moved 2m starting from rest is 1.98 m/s².

<h3>What is acceleration?</h3>

The rate of change of an object's velocity with respect to time is defined as acceleration. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force.

We can see that the acceleration of 3kg mass is double that of the 8kg mass. Therefore, Writing the force conservation equations altogether,

(T - 3g)/3 = 2(8g - 2T)/8

T= 3.6*g

Now, the Acceleration of 8kg mass can be written as

a = (8g - 2T)/8

  = 0.8g/8

  =0.1g

Therefore, acceleration of mass 3kg = 2×a = 0.2g

Further, as per the law of motion we can write,

v² - u² = 2as

Substituting the values, u =0; a=0.1g; s=2m; we will get,

v=1.98m/s

Hence, the speed of a after it has moved 2m starting from rest is 1.98 m/s².

Learn more about Acceleration:

brainly.com/question/12550364

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3 0
1 year ago
You travel a city 200 km away in 2.5 hours.what is your average speed
Paladinen [302]
200/2.5=80 hope this helps :)
8 0
3 years ago
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I need help with this ASAP
FrozenT [24]

Answer:

id.k sorry

Step-by-step explanation:

5 0
2 years ago
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Help plz i need some one two help me
mario62 [17]
I forgot how to do this
5 0
3 years ago
A regression by a sample of 10 observations gives: Score=49.5+1.96 Study Hours. The sample mean of study hour is 10.5 and sum of
amm1812

Answer:

0.1463

Step-by-step explanation:

Number of observations = 10

Sample mean = 10.5

Sum of standard deviation = 264.5

X = 14

We are to calculate The leverage statistic for study hour 14 using the data above

= 1/10 + (14-10.5)²/264.5

= 1/10 + 3.5²/264.5

= 0.1 +12.25/264.5

= 0.1+0.04631

= 0.1463 is the leverage statistic for the study

4 0
3 years ago
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