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marishachu [46]

3 years ago

12

Express (x - 1)(x + 2)(2x + 2) in standard form.

1 answer:

Anni [7]3 years ago

4 0

Answer:

2x to the third power + 4x to the second power - 2x - 4

Step-by-step explanation:

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A spherical tank has a radius of 6 yards. It is filled with a liquid that costs $7.15 per cubic yard.

scoray [572]

4πr³/3=V

288π=V

288πx7.15=$6,465.89

5 0

4 years ago

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Which system of linear inequalities is represented by the graph?

MAXImum [283]

Answer:

y < x – 2 and y > x + 1

Step-by-step explanation:

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3 years ago

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1 pt) If a parametric surface given by r1(u,v)=f(u,v)i+g(u,v)j+h(u,v)k and −4≤u≤4,−4≤v≤4, has surface area equal to 1, what is t

natta225 [31]

The area of the surface given by $\vec r_1(u,v)$ is 1. In terms of a surface integral, we have

$1=\displaystyle\int_{-4}^4\int_{-4}^4\left\|\frac{\partial\vec r_1(u,v)}{\partial u}\times\frac{\partial\vec r_1(u,v)}{\partial v}\right\|\,\mathrm du\,\mathrm dv$

By multiplying each component in $\vec r_1$ by 5, we have

$\dfrac{\partial\vec r_2(u,v)}{\partial u}=5\dfrac{\partial\vec r_1(u,v)}{\partial u}$

and the same goes for the derivative with respect to $v$ . Then the area of the surface given by $\vec r_2(u,v)$ is

$\displaystyle\int_{-4}^4\int_{-4}^425\left\|\frac{\partial\vec r_1(u,v)}{\partial u}\times\frac{\partial\vec r_1(u,v)}{\partial v}\right\|\,\mathrm du\,\mathrm dv=\boxed{25}$

8 0

3 years ago

A vendor supplies 32 litres of milk to a hotel in the morning and 68 litres of milk in the evening. If the milk costs ` 45 per l

tekilochka [14]

Answer:

4500

Step-by-step explanation:

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The ratio of 7th graders who prefer comedies to 8th graders is:

Len [333]

IS IT 7:8 OR 7 OVER 8

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3 years ago