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3 years ago

Linda is making a line plot of the data below.

Mathematics

1 answer:

solong [7]3 years ago

7 0

Answer:

Step-by-step explanation:

If we look, there's a point at 10.5, 3 points at 11.25, a point at 12, a point at 12.5, and finally a point at 14.125. This covers all the data provided.

Hope this helps :)

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The cost price of a plot of land was $20,000. The plot of land was sold for $24,000. Calculate the profit as a percentage of the

ycow [4]

Answer: 20%

Step-by-step explanation:

Profit of $4,000 is divided by the cost price of $20,000:

$4,000/$20,000 = 0.2 or 20%

8 0

3 years ago

The Area of a circle increases at a rate of 1 cm^2/s. How fast is the radius changing when the circumference is 2 cm?

jeyben [28]

The area of a circle:
A = πr²
dA/dr = 2πr

We are given dA/dt, using the chain rule
dr/dt = dA/dt x dr/dA

dr/dt = 1 x 1/2πr

When circumference = 2 cm:
2 = 2πr
r = 1/π; putting this value of r

dr/dt = 1/2π(1/π)
dr/dt = 1/2 cm/s

The radius is increasing at a rate of 1/2 cm/s.

5 0

3 years ago

Read 2 more answers

On a coordinate plane, a line goes through (negative 3, 2) and (0, 1). A point is at (3, 4). What is the equation of the line th

Novay_Z [31]

Answer:

$y=3x-5$

Step-by-step explanation:

step 1

Find the slope of the given line

we have

(-3,2) and (0,1)

The slope m is

$m=(1-2)/(0+3)=-1/3$

step 2

Find the slope of the line perpendicular to the given line

Remember that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of its slopes is -1)

The slope is

$m=3$

step 3

Find the equation of the line in point slope form

we have

$m=3$

$point(3,4)$

$y-4=3(x-3)$ ----> equation in point slope form

Convert to slope intercept form

$y=3x-9+4$

$y=3x-5$

6 0

3 years ago

Read 2 more answers

Find the roots of the polynomial equation x^3-5x^2+7x-35=0 must show work

Yuri [45]

Answer:

toooooooooooooooo hard

Step-by-step explanation:

so so sorry

7 0

3 years ago

If you have a quarter of a pie and you cut it in half, what fraction of a pie would each slice represent? enter the numerator fo

yarga [219]

$\\
\text{Suppose you have a quarter of a pie, so in mathematical notation the part of }\\
\text{pie you have is}=\frac{1}{4}\\
\\
\text{now you cut this piece of quarter pie in half and make two equal part.}\\
\\
\text{so the fraction of the pie, that each slice would represent is:}\\
\\
=\text{Half of the quarter pie}\\
\\
=\frac{1}{2}\left ( \frac{1}{4} \right )\\
\\
=\frac{1}{8}$

Hence the fraction of a pie that each slice represent is: 1,8

7 0

4 years ago