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EastWind [94]
3 years ago
12

Hi There , Please I need your help and I hope you can help me !

Mathematics
1 answer:
never [62]3 years ago
7 0
Kinetic Energy = (1/2)mv².

where m = mass in kg= 2.5 * 10⁵kg = 250000 kg, v = velocity in m/s = 3*10² m/s = 300 m/s

Kinetic Energy = (1/2)*250000*300² = 0.5 * 250000 * 300 * 300

                         = 1.125 × 10¹⁰  Joules.


2)  Relationship between aⁿ and a⁻ⁿ   

a⁻ⁿ  =   1 / aⁿ

or

aⁿ  =   1 / a⁻ⁿ 
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The square below has an area of 1+2x+x2 square meters. What expression represents the length of one side of the square?
vovikov84 [41]

Answer:

x+1

Step-by-step explanation:

A square = side* side

x²+2x+1 = (x+1)(x+1)

side = (x+1)

3 0
3 years ago
Solve for x. x3 = 216
vampirchik [111]
I'm assuming the equation is x^3 = 216 or x^3 = 216 (both mean the same thing)

If so, then the solution to x^3 = 216 is x = 6

<span>We can find this by taking the cube root of both sides
</span>x^3 = 216
x = 216^(1/3) .... 1/3 power means cube root
x = 6

Checking the answer:
x^3 = 216
6^3 = 216
6*6*6 = 216
216 = 216
Answer is confirmed

So once again the answer is x = 6. This is assuming the initial assumption made at the top of the problem holds up.
7 0
3 years ago
Read 2 more answers
What is the product of -5 and-8 answers are -40<br>-13. 13. 40​
zavuch27 [327]

Answer: 40

Step-by-step explanation: -5 x -8 is 40 since the negatives cancel each other out, the product is positive :)

4 0
3 years ago
15x+2y&gt;20<br> i need to change this to slope intercept form, please show steps!!
aleksandrvk [35]

Answer:

y>-15/2x+10

Step-by-step explanation:

15x+2y>20

First step: Move the 15x to the other side by subtracting on both sides. 2y>-15x+20

Second step: Divide everything by 2. y>-15/2x+10

3 0
3 years ago
What is the distance between (-9 -3) and (-4 -1)
AnnyKZ [126]

Answer:

|5.385|

Step-by-step explanation:

\sqrt{((-9)-(-4))^2 + ((-3)-(-1))^2 =

\sqrt{(-5)^2 + (-2)^2 =

\sqrt{25 + 4 =

\sqrt{29 =

|5.385|

7 0
3 years ago
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