Which is the best estimate of 42.18 divided by 0.3

Mathematics

2 answers:

iren2701 [21]3 years ago

8 0

Answer:

141

Step-by-step explanation:

42.18/0.3 = 140.6 ||| 141 is closer to 140.6 then 140.

cestrela7 [59]3 years ago

7 0

Answer:

0.3

Step-by-step explanation:

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Determine whether the pair of triangles below are similar. If they are similar, write the similarity criterion that can be used

Ugo [173]

Answer:

Cannot be determined

Step-by-step explanation:

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3 years ago

A particle is projected with a velocity of <img src="https://tex.z-dn.net/?f=40ms%5E-%5E1" id="TexFormula1" title="40ms^-^1" alt

Katena32 [7]

Answer:

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Step-by-step explanation:

The vertical component of the initial launch can be found using basic trigonometry. In any right triangle, the sine of an angle is equal to its opposite side divided by the hypotenuse. Let the vertical component at launch be $y$ . The magnitude of $40\text{ m/s}$ will be the hypotenuse, and the relevant angle is the angle to the horizontal at launch. Since we're given that the angle of elevation is $60^{\circ}$ , we have:

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Now that we've found the vertical component of the velocity and launch, we can use kinematics equation $v_f^2=v_i^2+2a\Delta y$ to solve this problem, where $v_f/v_i$ is final and initial velocity, respectively, $a$ is acceleration, and $\Delta y$ is distance travelled. The only acceleration is acceleration due to gravity, which is approximately $9.8\:\mathrm{m/s^2}$ . However, since the projectile is moving up and gravity is pulling down, acceleration should be negative, represent the direction of the acceleration.