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Verdich [7]
3 years ago
12

Benny grew 5 watermelons. Joan grew 2 watermelons. How manywatermelons did they grow in all ?​

Mathematics
2 answers:
stiks02 [169]3 years ago
4 0

Answer: it's 7

Step-by-step explanation:

You just add the numbers together like, 5+2 and then you get 7

Alenkinab [10]3 years ago
3 0

Answer:Benny and Joan grew 7 watermelons Total

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Answer:

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Axis of Symmetry: x = -3

Step-by-step explanation:

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The function is increasing in {-3, inf.} and decreasing in {-inf., 3}

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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:

2\sqrt{55}\text{ m/s or }\approx 14.8\text{m/s}

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:

\sin 60^{\circ}=\frac{y}{40},\\y=40\sin 60^{\circ},\\y=20\sqrt{3}(Recall that \sin 60^{\circ}=\frac{\sqrt{3}}{2})

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.

What we know:

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Solving for v_f:

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Sunny_sXe [5.5K]

Answer:

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