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Brilliant_brown [7]
3 years ago
15

a first class postage stamp was $0.02 in 1885. the same first class postage stamp in 2006 was $0.39. what is the percent of incr

ease in the cost of a first class postage stamp?
Mathematics
1 answer:
Eddi Din [679]3 years ago
5 0

The price was increased by $0.37 just subtract

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Identify the equation in slope-intercept form for the line containing the point (0,7) and perpendicular to y=−5/4x+11/4.
g100num [7]

Answer:

4/5x + 7

Step-by-step explanation:

the slope-intercept form is y = ax+b

a is the slope, to figure it out the line is perpendicular to y = -5/4x+11/4

There is a rule said if two lines are perpendiculars, the multiplication of their slopes = -1, so -5/4 * a = 1, solve for a = 4/5

b is the intercept to get it use the point (0,7)

so y = 4/5x+b, 7 = 4/5 * 0 + b,  then b = 7

4 0
2 years ago
Where are the asymptotes of f(x) = tan(4x − π) from x = 0 to x = pi over 2 ?
vladimir1956 [14]
tan(4x- \pi )= \frac{sin(4x- \pi )}{cos(4x- \pi )}

The asymptotes are where the graph is undefined. Since: tan(x) =sin(x)/cos(x)
It is where cos(4x-π) = 0

cos(4x-π) = 0 when the inside is -π/2 , π/2 , 3π/2

4x - π = π/2
4x = π/2 + π
4x = 3π/2
x = 3π/8

4x - π = 3π/2
4x = 3π/2 + π
4x = 5π/2
x = 5π/8
This ones outside the interval (5π/8 > π/2) , try -π/2

4x - π = -π/2
4x = -π/2 + π
4x = π/2
x = π/8

Asymptotes are π/8 and 3π/8




4 0
3 years ago
Select the most appropriate unit to measure the horizontal distance along the bridge
fgiga [73]
We will need a little more to answer on that that please. 

7 0
3 years ago
Help for brianilist! first answer will get brianilist!!!!!!!
stealth61 [152]
HI THERE!!!!!

The answer is your question is the second choice 59 in^2.

Here is how you can do it:
 
1. Area of rectangle = length*width = 7*4 = 28 square inches
2. Area of triangle on the top = 0.5*base*height = 0.5*7*6 = 21 square inches
3. Area of triangle on right side = 0.5*base*height = 0.5*4*5 = 10 square inches.

Now you can do the total area:
Add them all →→ 28+21+10 = 59

Hope this helps u out.;)P.S. id really appreciate brainliest thx

~ TRUE BOSS



7 0
3 years ago
Dracula counter vehicles in a parking lot 4 out of 16 were motorcycles if this trend continues and he counts 8 more vehicles how
Nutka1998 [239]

Answer:

32

Step-by-step explanation:

7 0
3 years ago
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