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3 years ago

In order to be considered a semi conductor the material must?

Mathematics

2 answers:

vova2212 [387]3 years ago

5 0

The answer is A. Have insulator and conductor properties

pls mark me brainliest, I would really appreciate it

Rashid [163]3 years ago

3 0

In order to be considered a semi-conductor the material must have insulator and conductor properties, So the answer would be A,

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Y = 3 sin2x, y = 0, 0 ≤ x ≤ π; about the x−axis

Dominik [7]

I assume you're revolving the region with those bounds about the x-axis, and supposed to find the volume.

Via the disk method,

$\displaystyle\pi\int_0^\pi(3\sin2x)^2\,\mathrm dx=9\pi\int_0^\pi\sin^22x\,\mathrm dx$

Recall the half-angle identity for sine:

$\sin^2t=\dfrac{1-\cos2t}2$
$\implies\displaystyle\frac{9\pi}2\int_0^\pi(1-\cos4x)\,\mathrm dx$
$=\displaystyle\frac{9\pi}2\left(x-\frac14\sin4x\right)\bigg|_{x=0}^{x=\pi}$
$=\dfrac{9\pi^2}2$

8 0

3 years ago

a room has a length of 11 ft if the room has an area of at least 133 ft what does the width of the room have to be at least

MissTica

Area is the length times the width.

When you know the area and one of the dimensions, divide the area by the known dimension to find the other one.

133 / 11 = 12.09

The room needs to be at least 12.09 feet wide. ( round answer if needed).

7 0

3 years ago

Solve the inequality.<br><br> 3≤7+g

Anastaziya [24]

Answer:

g-4

Step-by-step explanation:

first subtract 7 from both sides

then you will get -4 $\leq$ g

which is the same as g $\geq$ -4

you just have to switch them

6 0

3 years ago

Read 2 more answers

A hemispherical tank is filled with water and has a diameter of 16 feet. If water weighs 62.4 pounds per cubic foot, what is the

kramer

Answer: 133,827 lb/ft^3

Step-by-step explanation:

V = (4/3) (3.14)(8^3) = 133,827

4 0

2 years ago

What is the rate of change and initial value of the linear function modeled by a line passing through the points (0,8) and (3,-1

kumpel [21]

The rate of change is equal to rise over run
= (-1 - 8)÷(3 - 0)
= -9 ÷ 3
= -3

When you say initial value I'm assuming you mean the y-intercept

In that case you first need to find the equation of the line by substituting the gradient and point into the gradient intercept formula

y - 8 = -3(x - 0)
y = -3x + 8

The y-intercept is when x = 0 so,

y = -3(0) + 8
Therefore y = 8

3 0

3 years ago