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PSYCHO15rus [73]
3 years ago
13

What is the surface area of the cube? 42 mm² 49 mm² 294 mm² 1764 mm² https://static.k12.com/nextgen_media/assets/243723-VHS_PA_S

2_05_L210_L310_LQ_Q1.gif

Mathematics
1 answer:
gulaghasi [49]3 years ago
5 0

<span>the drawing in the attached figure</span><span>
b=7 mm 
the cube has 6 faces

the surface area of the cube=7*7*6=294 mm</span>²

the answer is 294 mm²

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Correct answer: "the volume of the basketball when the radius is r"

The V(r) is a function: you give it the value of radius r, and it returns the volume V.

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Answer:

The laptop will not fit in the case.

Step-by-step explanation:

We need to find the width of the laptop to know if it fits in the case. We have:

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h: is the height of the laptop = 10 inch

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d^{2} = w^{2} + h^{2}

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The height H of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 9
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Answer:

The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

Step-by-step explanation:

Statement is incorrect. Correct form is presented below:

<em>The height </em>h(t)<em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em>h(t) = 3 +90\cdot t -16\cdot t^{2}<em>, where </em>t<em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>

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3+90\cdot t -16\cdot t^{2} = 84

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By Quadratic Formula:

t_{1,2} = \frac{90\pm \sqrt{(-90)^{2}-4\cdot (16)\cdot (81)}}{2\cdot (16)}

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The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.

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