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aliina [53]
3 years ago
10

What is the answer in that Equation

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0
T=2\pi\sqrt{\dfrac{m}{k}}\ \ \ \ \ |divide\ both\ sides\ by\ 2\pi\\\\\sqrt{\dfrac{m}{k}}=\dfrac{T}{2\pi}\ \ \ \ \ \ |square\ both\ sides\\\\\dfrac{m}{k}=\dfrac{T^2}{4\pi^2}\ \ \ \ \ \ |multiply\ both\ sides\ by\ k\neq0\\\\\boxed{m=\dfrac{T^2k}{4\pi^2}}
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An angle passes through the point (-7,-5). What is the compass heading of this angle?
umka21 [38]
To find the angle use arc tan (-5/-7) which simplifies tips arctan(5/7). arc tan is tan to the power -1, which is also called inverse tan. The heading of the angle, if you drew this out on a graph your angle would be in the third quadrant and therefore the heading is south of west.
3 0
3 years ago
To increase an amount by 3% what single multiplier would you use?
loris [4]

3% is the decimal  0.03 .

To make a number 3% bigger, multiply it by  1.03 .

The ' 1 ' part is the amount that's already there, and
the ' .03 ' part is the amount to be added onto it.

3 0
3 years ago
If a circle has a diameter of 8cm, what is the radius of this circle?
oee [108]

Answer:

r=4cm

d Diameter

cm

d

r

r

r

d

d

C

A

Unit Conversion:

d=8cm

Using the formula

d=2r

Solving forr

r=d

2=8

2=4cm

Step-by-step explanation:

6 0
3 years ago
Which one is bigger 30% or 4 /15<br>???
Nikolay [14]
I believe 30% is bigger than \frac{4}{15}.

To find the answer, you'd have to convert both the fraction and the percent into decimal form to see which one is truly bigger. Converting the percent is fairly easy. 30% would become 0.30 is decimal form. To find the fraction in decimal form, you'd have to divide the numerator by the denominator, which would be 4 ÷ 15, which makes : 2.6666666666666666666666667. 

Now you compare easily. Which one is bigger? 2.666666666666666666666667 or 0.30? 

0.30 is bigger. So 30% is bigger out of both of them.
5 0
3 years ago
Read 2 more answers
Simplify the expression (8n^4-6n+8n^2)+(6n^4-3n+7)
Marysya12 [62]

Answer:

=14n⁴+8n²-9n+7

Step-by-step explanation:

(8n⁴-6n+8n²)+(6n⁴-3n+7)

=8n⁴-6n+8n²+6n⁴-3n+7

=8n⁴+6n⁴+8n²-6n-3n+7

=14n⁴+8n²-9n+7

8 0
3 years ago
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