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zhuklara [117]
3 years ago
7

There are 2.54 centimeters to 1 inch. how many centimeters are in 15 inches

Mathematics
2 answers:
Rainbow [258]3 years ago
8 0
15*2.54 = 38.1

Cause theres 15 of them
victus00 [196]3 years ago
4 0
15 of them (: hope this helps
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List the first 11 perfect squares
vlabodo [156]
1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121
6 0
3 years ago
Can you please help me out​
Katena32 [7]
Cube is the right answer
5 0
3 years ago
Read 2 more answers
The graph below describes the journey of a train between two cities
UkoKoshka [18]

Answer:

Step-by-step explanation:

To find : Acceleration in first 15 min . Distance between two cities  Average speed of journey

Solution:

Each horizontal block is 1/8 hr = 7.5 min

Each vertical block is 10 km/hr

Time                    Velocity  km/hr

0 Min  ( 0 hr)            0

15 Min (1/4 hr)           50

45 Min (3/4 hr)         50

60 MIn  ( 1 hr)            100

90 Min  ( 3/2 hr)        100

120 Min ( 2hr)            0

Acceleration in first 15 min  (1/4 hr)  =  (50 - 0)/(1/4 - 0)  = 50/(1/4)

= 200  km/h²

Distance between two cities

= (1/2)(0 + 50)(1/4 - 0)  + 50 * (3/4 - 1/4)  + (1/2)(50 + 100)(1 - 3/4)  + 100 * (3/2 - 1) + (1/2)(100 + 0)(2 - 3/2)

=  25/4  + 25 + 75/4   + 50 + 25

= 125

Distance between two cities = 125 km

Average Speed of journey = 125/2  = 62.5  km/hr

Acceleration in first 15 min = 200  km/h²

Distance between two cities = 125 km

Average Speed of journey =  62.5  km/hr

Hope this helps..

3 0
3 years ago
Read 2 more answers
The figure below can be used to prove the Pythagorean Theorem. Use the drop-down menus to complete the proof.
Lynna [10]

ANSWER :

1. 2ab + c^2

2. (a + b)^2 or (a^2 + 2ab + b^2)

3. 2ab

EXPLANATION :

Recall that the area of a triangle is 1/2 base x height.

and the area of a square is the square of its side.

From the problem, we have 4 congruent triangles.

The area of four triangles is :

\begin{gathered} A=4\times\frac{1}{2}(ab) \\ A=2ab \end{gathered}

The area of the square is :

A=c^2

Then the total area will be :

2ab+c^2

It is equivalent to the area of the whole square in which the side is (a + b)

So that's :

A=(a+b)^2\quad or\quad(a^2+2ab+b^2)

Since both expressions are equal, we can equate them :

\begin{gathered} 2ab+c^2=a^2+2ab+b^2 \\ \text{ Subtracting 2ab from both sides :} \\ 2ab+c^2-2ab=a^2+2ab+b^2-2ab \\ c^2=a^2+b^2 \end{gathered}

3 0
1 year ago
What do the numbers have in common and if x = 4, what would y be? <br><br> Thanks!
katrin [286]

y = x^2 + 1

y equals x squared plus 1


y = 4^2 + 1

y = 16 + 1

y = 17


3 0
3 years ago
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