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3 years ago

About how far does the S wave travel through Earth in 13 minutes?

Mathematics

2 answers:

nikdorinn [45]3 years ago

6 0

Answer:

b, 4000

Step-by-step explanation:

bija089 [108]3 years ago

3 0

Answer:

C. 6,000 km

Step-by-step explanation:

v = speed at S-wave travel through the earth = 8 km/sec

t = time of travel for the S-wave through the earth = 13 minutes = 13 x 60 seconds = 780 seconds (Since 1 minute = 60 seconds)

d = distance traveled by S-wave in the given time interval

Distance traveled by S-wave in the given time interval is given as

d = v t

inserting the above values in the formula

d = (8 km/sec) (780 sec)

d = 6240 km

the closest choice is 6000 km at option C

So Option C

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The perimeter of a rectangle is 1144 ft. It’s length is three times it’s width.find the dimensions of the rectangle.

AVprozaik [17]

Answer:

$Length= 429 feet\\Width=143feet$

Step-by-step explanation:

Perimeter of the rectangle= 1144 feet

Length=3*Width

L=3*W

Perimeter of rectangle:

$2(Length+Width)\\\\ 1144=2(3W+W)\\\\ 1144/2=3W+W\\\\ 572=4W\\\\ W=572/4\\\\ W= 143 feet\\\\Width=143 feet\\\\Length=3*143=429 feet\\\\$

The Dimension of the rectangle is :

$Length= 429 feet\\Width=143feet$

8 0

2 years ago

Pls help me with my homework

timofeeve [1]

Yes I worked it in my brain hahahahahah

4 0

2 years ago

PLEASEEE HELP ME WHAT IS THE ANSWER!!

blagie [28]

Answer:

Number 3 is correct.

129.19m

Step-by-step explanation:

You might be wondering how did I got 32⁰, well, that's because they are alternate angles.

Now, we're trying to find the opposite side of the triangle.

Using the laws,

we got cos32⁰=x/243.8

243.8cos32⁰=x

129.19⁰

Mark me as Brian list?

3 0

2 years ago

Values of a and b Mm

alexira [117]

Scalene triangles. I think

4 0

2 years ago

A skateboarding park charges $7 per session to skate and $4 per session to rent safety equipment. Your friend rents safety equip

beks73 [17]

He spent $36 on safety equipment.
The total cost each time was $11, meaning he had to pay 9 times for each skate session. 4x9=36! ( 7x9= 63 so if you add 36 you'll get 99 just as a way of checking)

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2 years ago