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3 years ago

50 POINTS!! SHOW ALL THE WORK TY (Graph as well)

Mathematics

1 answer:

Inessa [10]3 years ago

3 0

Answer:

see below

Step-by-step explanation:

y = a cos ( bx)

The amplitude is |a|

y = -2cos (3x) so the amplitude is |-2| = 2

The period is 2pi/b

period is 2pi/3

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3 years ago

Read 2 more answers

Someone help please?

miv72 [106K]

$d = 4n -2 \\d + 2 = 4n\\\frac{1}{4}d + \frac{2}{4} = n\\\\n = 0.25d + 0.5$

For a 3-penny nail
$n = 0.25d + 0.5\\ n = 0.25(3) + 0.5\\n = 0.75 +0.5\\\\n = 1.25$

For a 6-penny nail
$n = 0.25d + 0.5\\n = 0.25(6) + 0.5\\n = 1.5 + 0.5\\\\n = 2$

For a 10-penny nail
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Hope that helped :)

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4 years ago

If a circle has a radius of 10 how do u find the area

hjlf

Answer:

A = 628.32

Step-by-step explanation:

Area of a circle = 2 $\pi$ $r^{2}$

A = 2 x $\pi$ x $10^{2}$

A = 628.32

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3 years ago

Need some help with this question please.

Ksivusya [100]

Use Pythagorean theorem
a^2 + b^2 = c^2
Plug in the info
b = 53, a = 41
41^2 + 53^2 = c^2
1681 + 2809 = c^2
c^2 = 4490
Squareroot of 4490 = 67.007
Perimeter = adding all sides
53m + 41m + 67.01m = 161.01 m

Solution: 161.01 meters

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