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Leya [2.2K]
2 years ago
7

What is 8^2 + 15^2= c^2

Mathematics
2 answers:
Tasya [4]2 years ago
6 0

Answer:

8^2\:+\:15^2=\:c^2

c = 17

Step-by-step explanation:

This is the  Pythagorean theorem  

svet-max [94.6K]2 years ago
6 0

Answer:

c^2= 64 + 225

c^2=289

c= √289

c= 17

I hope it's helpful

Thank you !

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An earthquake wave travels through 55 km of rock in 25 seconds . Which equation represents the relationship between t, the numbe
ira [324]

Answer:

2.2 m/s

Step-by-step explanation:

Step one

Given data

An earthquake wave travels through 55 km

hence distance = 55 km

time taken = 25 seconds

<u>Required</u>

<u>the expression relating t and d</u>

Step two:

we know that velocity is

Speed= distance/time

speed= 55/25

Speed= 2.2 m/s

6 0
3 years ago
Assume that y varies inversely with x. If y=9 when x=7, find y when x=2.
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Answer:1.56

Step-by-step explanation:

For constant of proportionality of k,

y=(1/k)*x

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9=7/k

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When x

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3 years ago
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7 0
3 years ago
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A pattern follows the rule "Starting with one, every consecutive line has a number one more than twice the previous line".
gtnhenbr [62]

Answer:

The fourth line will have 15 marbles

Step-by-step explanation:

The third line has 7 marbles. So, you double that and add one in order to find the number of marbles in the fourth line.

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4 0
3 years ago
Question 9 (1 point)
Likurg_2 [28]

Answer:

A piece of Jewelry costs $4.5 and a hair accessory costs $1.5.

Step-by-step explanation:

Let the price of a piece of jewelry is $x and that of a piece of hair accessories is $y.

So, from the given conditions we can write two different equations as

5x + 8y = 34.5 ............ (1) and

2x + 16y = 33 ............... (2)

Now, solving the equations (1) and (2) we get

2x + 2(34.5 - 5x) = 33

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⇒ x = $4.5

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2(4.5) + 16y = 33

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⇒ y = $1.5

Therefore, a piece of Jewelry costs $4.5 and a hair accessory costs $1.5. (Answer)

6 0
3 years ago
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