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aleksley [76]
3 years ago
5

How do you solve his problem

Mathematics
1 answer:
Liula [17]3 years ago
3 0

Answer:

20

Step-by-step explanation:

d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

d = \sqrt{(-6 - 10)^2 + [7 - (-5)]^2}

d = \sqrt{(-16)^2 + (7 + 5)^2}

d = \sqrt{256 + 12^2}

d = \sqrt{256 + 144}

d = \sqrt{400}

d = 20

Answer: 20

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the equation of a wave is given as y=0.5sin(3πx + 50πt). when x and y are in metres and t is in seconds. Find the amplitude, the
Crazy boy [7]

if they are optional

all are correct

<h3>step by step instructions:</h3>

Correct option is

D

All are correct

the equation of a given progressive wave is

y=5sin(100πt−0.4πx) ......(i)

The standard equation of a progressive wave is

y=asin(ωt−Kx) ...(ii)

Comparing (i) and (ii), we get

a=5m,ω=100π rad s

−1

,k=o.4πm

−1

도움이 되기를 바랍니다. :)

좋은 하루 되세요 :)

가장 똑똑한 것으로 표시 :)

4 0
3 years ago
Please help me thanks ​
malfutka [58]
I believe it would be the last answer, 6.25
if this is correct i’m very sorry, but if this helps, please mark brainliest. :)
6 0
3 years ago
Determine whether the number is a perfect square 47
Ghella [55]
Perfect squares are n² where n is a whole number
whole numbers are like 0,1,2,3,4,5,6, etc
no decimal or fractions

we can do that be looking at the perfect squares we know
2²=4
3²=9
4²=16
5²=25
6²=36
7²=49
8²=64
etc

so we see 47 is between 6² and 7²
therefor, for n²=47, n is between 6 and 7 and is therfore not a whole number
that makes 47 not a perfect square
7 0
4 years ago
Read 2 more answers
What sales tax, at the rate of 5% must you pay on the purchase of a computer hard drive that cost $229?
White raven [17]
The answer is $11.45
6 0
3 years ago
There are 13 animals in a barn. Some are Chickens and some are Pigs. Altogether
konstantin123 [22]

Answer:

Ahh! What a classic: Systems of Equations!

So, if you don't know what a system of equations is, its basically two equations with two variables combined into a system.

So, let x=# of pigs

And also, Let y=# of chickens

Let's make our first equation!

13=x+y

This is because there are 13 animals in a barn.

So then, knowing that a pig has 4 legs and a chicken 2:

40=4x+2y

This is because there are 40 legs in total, and we multiply the variable because that's how many legs each creature has.

So, here is our system!

\left \{ {{x+y=13} \atop {4x+2y=40}} \right.

Through Substitution (the inputting of something instead of a variable):

x+y=13\\x=13-y

Then, we input it into the next equation:

4(13-y)+2y=40\\52-4y+2y=40\\-2y=-12\\y=6

This means that there are 6 chickens, and by inputting it into the first equation:

x+6=13\\x=7

So there you have it!

FYI there are 6 chickens and 7 pigs.

Hope this helps!

P.S. Stay Safe!

8 0
3 years ago
Read 2 more answers
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