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3 years ago

3.

Mathematics

2 answers:

Mazyrski [523]3 years ago

8 0

Answer: A

Explanation:

lana66690 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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I need help with this math problem please

liraira [26]

It’s D

have a great day!

photo attached below :)

8 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (4, 6)(4,6) and (-16, -18) ? (−16,−18)? Write your answer in the si

Pepsi [2]

Answer:

1.2 or 1 1/5

Step-by-step explanation:

I used the formula y2-y1/x2-x1

-18-6=-24

-16-4=-20

-24/-20= 1.2 or 1 1/5

7 0

3 years ago

Find the volume of the solid generated by revolving the region enclosed by the triangle with vertices (1 comma 0 ), (3 comma 2

Troyanec [42]

Answer: Volume = $\frac{20\pi }{3}$

Step-by-step explanation: The washer method is a method to determine volume of a solid formed by revolving a region created by any 2 functions about an axis. The general formula for the method will be

V = $\pi \int\limits^a_b {(R(x))^{2} - (r(x))^{2}} \, dx$

For this case, the region generated by the conditions proposed above is shown in the attachment.

Because it is revolting around the y-axis, the formula will be:

$V=\pi \int\limits^a_b {(R(y))^{2} - (r(y))^{2}} \, dy$

Since it is given points, first find the function for points (3,2) and (1,0):

m = $\frac{2-0}{3-1}$ = 1

$y-y_{0} = m(x-x_{0})$

y - 0 = 1(x-1)

y = x - 1

As it is rotating around y:

x = y + 1

This is R(y).

r(y) = 1, the lower limit of the region.

The volume will be calculated as:

$V = \pi \int\limits^2_0 {[(y+1)^{2} - 1^{2}]} \, dy$

$V = \pi \int\limits^2_0 {y^{2}+2y+1 - 1} \, dy$

$V=\pi \int\limits^2_0 {y^{2}+2y} \, dy$

$V=\pi(\frac{y^{3}}{3}+y^{2} )$

$V=\pi (\frac{2^{3}}{3}+2^{2} - 0)$

$V=\frac{20\pi }{3}$

The volume of the region bounded by the points is $\frac{20\pi }{3}$ .

6 0

4 years ago

Can anyone help me please

snow_lady [41]

Answer:

a. 41.5

b, 26.5

Step-by-step explanation:

2x + 6 = 180

2x = 172

x = 86

2x+ 90 +26+11 = 180

2x+127 = 180

2x = 53

x = 26.5

5 0

3 years ago

Read 2 more answers

Jose worked 3 hours. In a one day what fraction of the day did he work?

Alexus [3.1K]

Since there are 24 hours in a day the fraction would be

3/24 but can be simplified to 1/8

The answer is Jose worked 1/8 of the day

7 0

3 years ago