4 years ago

Answer my question and I’ll give you points, stars, and brainlest

Mathematics

1 answer:

Ludmilka [50]4 years ago

7 0

3) y = mx + b (m is the slope and b is the y-intercept)
so y = -2x + 3

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What is 7 4/5 + 8 8/9

Paladinen [302]

7 4/5 = 7 36/45
8 8/9 = 8 40/45
+----------
15 75/45
15 75/45 = 16 30/45

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3 years ago

2(4y - 5) < - 2 please help

34kurt

Answer:

y < 1

Step-by-step explanation:

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3 years ago

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Set up the integral that uses the method of disks/washers to find the volume V of the solid obtained by rotating the region boun

Blababa [14]

Answer:

$a)\: \frac{3}{2} \pi$

$b) \:\frac{47}{5} \pi$

Step-by-step explanation:

$y=3\sqrt x,\:\:y=3,\:\:x=0$

a) about the line y = 3

$3\sqrt x=3$ ⇒ $x = 1$ is the intersection point

So,

$V=\int\limits^1_0\pi(3-3\sqrt x)^2\:dx=\pi\int\limits^1_0(9-18\sqrt x+9x)\:dx=\\\\=\pi(9x-12x^{3/2}+9/2x^2)|^1_0=\pi(9-12+9/2)=\frac{3}{2} \pi$

b) about the line x = 5

$y=3\sqrt x$ ⇒ $x=y^2/9$

So,

$V = \int\limits^3_0\pi([5-0]^2-[5-y^2/9]^2)\:dy=\pi\int\limits^3_0(25-25+10y^2/9-y^4/81)\:dy=\\\\=\pi(10y^3/27-y^5/405)|^3_0=\pi(10-3/5)=\frac{47}{5} \pi$

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4 years ago

How to write nine hundred fifteen thousands four hundred and nine

hoa [83]

This is how you write it. 915,409

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3 years ago

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10% of the 50 pages is blank pages

Marrrta [24]

Answer:

5 pages

Step-by-step explanation:

10% of 50 is 5

(50 divided by 10 = 5)

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3 years ago

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