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3 years ago

Help me with number 5 please

Mathematics

2 answers:

drek231 [11]3 years ago

6 0

Answer:

17.95

Step-by-step explanation:

You subtract 964.36 from 982.31

vlada-n [284]3 years ago

3 0

The answer is 17.95
Hope this helps

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Someone please HELP ME I NEED HELP PLEASEEEE!!!....<br> https://brainly.com/question/20140012

FromTheMoon [43]

Answer:

I’m lost

Step-by-step explanation:

3 0

3 years ago

Volumes of the solids with disk or shell method?

lina2011 [118]

The answer to the questions of volumes are given as follows

a) $v=128 \pi$

b) $v=\frac{128}{3} \pi$

c) $v=\frac{1024}{5} \pi$

d) $V=\frac{13568}{15} \pi$

Generally, the questions are mathematically solved below

$y=\sqrt{x}, y=4, x=0$

a) x-axis

if $y=4, x=16, x=0$

Using disk method

$} v=\pi \int_{0}^{16}(\sqrt{x})^{2} d x \\$

$v=\pi\left(\frac{x^{2}}{2}\right)_{0}^{16} \\$

$v=\frac{\pi}{2} \times 16 \times 16 \\$

$v=128 \pi$

b) line y=4

if x=0, y=0 ;

$y=\sqrt{x} \Rightarrow x=y^{2}$

Using shell method

$v = \int_{0}^{4} 2 \pi(4-y) \cdot y^{2} d y \\$

$v=2 \pi \int_{0}^{4}\left(4 y^{2}-y^{3}\right) d y$

$v=2 \pi\left[\frac{4 y^{3}}{3}-\frac{y^{4}}{4}\right]_{0}^{4} \\$

$v=\frac{2 \pi}{12}[1024-768] \\$

$v=\frac{512 \pi}{12} \\$

$v=\frac{128}{3} \pi$

c) y-axis

0 ≤ y ≤ 4

x=y^2

Using disk method

volume

$v=\pi \int_{0}^{4} y^{4} d y$$

$v=\pi\left(\frac{y 5}{5}\right)_{0}^{4} \\$

$v=\frac{1024}{5} \pi$

d) line x=-1

y=√x, y=4, x=0

0 ≤ x ≤ 6

Using shell method

volume is

$V=\int_{0}^{16} 2 \pi(1+x) \sqrt{x} d x$$

$V=2 \pi\int_{0}^{16}(x^{1 / 2}+x^{3 / 2}\right) )d x\right. \\$

$V=2 \pi\left[\frac{x^{3 / 2}}{3 / 2}+\frac{x^{5 / 2}}{5 / 2}\right]_{0}^{16} \\$

$V=2 \pi\left[2 / 3 \cdot\left(4^{2}\right)^{3 / 2}+2 / 5\left(4^{2}\right)^{5 / 2}\right] \\$

$V=4 \pi / 3 \cdot 4^{3}+4 \pi / 5 \cdot 4^{5} \\$

$V=4 \pi\left(\frac{1}{3}+\frac{4^{2}}{5}\right)$

$V=\frac{256}{15}(5+48) \pi \\$

$V=\frac{256 \times 53}{15} \pi \\$

$V=\frac{13568}{15} \pi$

Read more about volumes

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8 0

2 years ago

True or false the angle

Ira Lisetskai [31]

Answer:

Second option: False

Step-by-step explanation:

You need to use the following identity:

$sin\alpha=\frac{opposite}{hypotenuse}$

Let be "x" the lenght of the buildings's shadow.

$opposite=x$ (Lenght of building's shadow)

You can observe in the figure that:

$\alpha=75\°\\\\hypotenuse=50ft$

Substitute these values into $sin\alpha=\frac{opposite}{hypotenuse}$ and solve for ""x":

$sin(75\°)=\frac{x}{50}\\\\(50)(sin(75\°))=x\\\\x=48.29\°$

Therefore, the length of its shadow IS NOT 12.94 feet.

6 0

3 years ago

What is the simplified form of the fifth root of x to the fourth power times the fifth root of x to the fourth power

elena55 [62]

I believe the following is your problem (if not do rectify me). If so, then:

⁵√x⁴ .⁵√x⁴
1st method:
⁵√x⁴ .⁵√x⁴ = x⁴/⁵ . x⁴/⁵ = x⁽⁴/⁵ +x⁴/⁵⁾ = x⁸/⁵ = ⁵√x⁸ = ⁵√(x⁵.x³) = x. ⁵√x³
2nd method:
⁵√x⁴ . ⁵√x⁴ = ⁵√(x⁴. x⁴) = ⁵√(x⁴⁺⁴) = ⁵√x⁸ = x .⁵√x³

3 0

3 years ago

Read 2 more answers

A student turned in an 18-page paper which is

arsen [322]

Answer:

i believe its around like a 4.1% or 4.2%

HOPE IT HELPS!!

4 0

3 years ago