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weeeeeb [17]
3 years ago
6

What is a possible volume for this cylinder if the diameter is 8 cm? Explain your reasoning.

Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

The formula for the volume of a cylinder is pi*r^2*h

r=radius= 1/2 diameter

h= the height

pi=3.14...

just get the height and plug it in

Step-by-step explanation:

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TheStudent Government buys sweatshirts for $10 and sells them for $25. Find the percent of increase.
Vitek1552 [10]

Answer:

4

Step-by-step explanation:

4444

8 0
2 years ago
How do you expand and simplify (x-8)(x+5)
AVprozaik [17]
The answer is x² +5x -8x
3 0
3 years ago
Find an equation for the perpendicular Bisector of the line segment whose endpoints are (-9,-8) and (7,-4
Alina [70]

equation for the perpendicular Bisector of the line segment whose endpoints are (-9,-8) and (7,-4)

Perpendicular bisector lies at the midpoint of a line

Lets find mid point of  (-9,-8) and (7,-4)

midpoint formula is

\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2}

\frac{-9+7}{2} ,\frac{-8+-4}{2}

midpoint is (-1, -6)

Now find the slope of the given line

(-9,-8) and (7,-4)

slope = \frac{y2-y1}{x2-x1} = \frac{-4-(-8)}{7-(-9)}

slope = \frac{-4+8}{7+9}= \frac{4}{16} =\frac{1}{4}

Slope of perpendicular line is negative reciprocal of slope of given line

So slope of perpendicular line is -4

slope = -4  and midpoint is (-1,-6)

y - y1 = m(x-x1)

y - (-6) = -4(x-(-1))

y + 6 = -4(x+1)

y + 6 = -4x -4

Subtract 6 on both sides

y = -4x -4-6

y= -4x -10

equation for the perpendicular Bisector y = -4x - 10


3 0
3 years ago
Two pages that face each other in a book have 421 as the sum of their page numbers. What is the number of the page that comes fi
nordsb [41]

Answer:the pages will come on the first is  210

Explanation:

Since we have given that two pages that face each other in a book

i.e. they must be consecutive to each other

so, let the first page number be x

and the second page number be x+1

According to question,

x+x+1=421\\2x+1=421

2x=421 -1

2x=420

x=\frac{420}{2}\\=210

So, the pages will come on the first is  210

4 0
3 years ago
what is an equation for the line that passes through the points (0,-4) (7,11) in slope-intercept form
fomenos

Answer:

y=15/7x-4

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(11-(-4))/(7-0)

m=(11+4)/7

m=15/7

y-y1=m(x-x1)

y-(-4)=15/7(x-0)

y+4=15/7(x)

y+4=15/7x

y=15/7x-4

4 0
3 years ago
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