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3 years ago

(4*18)^1/2

Mathematics

1 answer:

barxatty [35]3 years ago

3 0

Answer:

Step-by-step explanation:

4*18 = 72

sqr root of 72 is about 8.485

Choice B comes out to be 8.485(rounded)

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Solve for x −6>−30−4x

Mademuasel [1]

Isolate the x. Do the opposite of PEMDAS. First, add 30 to both sides

-6 (+30) > - 30 (+30) - 4x

24 > -4x

Isolate the x. Divide -4 from both sides. Note that when dividing a negative, you must flip the sign.

24/-4 > -4x/-4

24/-4 > x

-6 < x

-6 < x is your answer

hope this helps

7 0

3 years ago

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The length of the rectangle is 1/4th the width of the rectangle. The perimeter is 35 ft. How long is the length and width?

Monica [59]

---- x ----
| | 0.25x
---- x ----

x + x + 0.25x + 0.25x = 35
2.5x = 35
x = 35/2.5
x = 14
width is 14

length is 1/4 this.
length = 7/2

6 0

3 years ago

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Write the hourly wage 15 dollars an hour as a fraction

amid [387]

it can be written like this, hope this helps: $15/hour <3

4 0

3 years ago

40 points please help

Lera25 [3.4K]

answer:

im not sure. what is ur question

step-by-step explanation:

4 0

3 years ago

Use the disk method or the shell method to find the volumes of the solids generated by revolving the region bounded by the graph

diamong [38]

Answer:

a) 8π

b) 8/3 π

c) 32/5 π

d) 176/15 π

Step-by-step explanation:

Given lines : y = √x, y = 2, x = 0.

a) The x-axis

using the shell method

y = √x = , x = y^2

h = y^2 , p = y

vol = ( 2π ) $\int\limits^2_0 {ph} \, dy$

= $( 2\pi ) \int\limits^2_0 {y.y^2} \, dy$

∴ Vol = 8π

b) The line y = 2 ( using the shell method )

p = 2 - y

h = y^2

vol = ( 2π ) $\int\limits^2_0 {ph} \, dy$

= $( 2\pi ) \int\limits^2_0 {(2-y).y^2} \, dy$

= ( 2π ) * [ 2/3 * y^3 - y^4 / 4 ] ²₀

∴ Vol = 8/3 π

c) The y-axis ( using shell method )

h = 2-y = h = 2 - √x

p = x

vol = $(2\pi ) \int\limits^4_0 {ph} \, dx$

= $(2\pi ) \int\limits^4_0 {x(2-\sqrt{x} ) } \, dx$

= ( 2π ) [x^2 - 2/5*x^5/2 ]⁴₀

vol = ( 2π ) ( 16/5 ) = 32/5 π

d) The line x = -1 (using shell method )

p = 1 + x

h = 2√x

vol = $(2\pi ) \int\limits^4_0 {ph} \, dx$

Hence vol = 176/15 π

attached below is the graphical representation of P and h

3 0

3 years ago