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mezya [45]
3 years ago
13

Someone help me please

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0
I think answer is C.2 hope i help btw good luck
prisoha [69]3 years ago
5 0
The answer is five at least i hope it is

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100 POINTS! WILL BE MARKED BRAINLIEST!!
QveST [7]

KE = 0 (because velocity is 0)  

PE = mgh = 2kg*9.8m/s^2*40m= 784 joule

<u>Explanation:</u>

KE stands for kinetic energy. In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. Since in this case, the building is still and therefore it does not have any kind of kinetic energy because there is not acceleration.

5 0
3 years ago
One thousand and twenty students participated in the school math contest.
Tema [17]

Answer:

sample 1: 75

sample 2: 86

Step-by-step explanation:

6 0
2 years ago
This is a standard deviation contest. You must choose four numbers from the whole numbers 0 to 10 , with repeats allowed. (a) Ch
irina [24]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following instructions :

Choose 4 numbers from the whole numbers 0 - 10

Note : Repetition is allowed

Choose 4 numbers with the smallest possible standard deviation.

The smallest possible value of standard deviation obtainable is 0;

Hence in other to obtain a standard deviation value of 0, then;

The mean squared deviation value must be zero (0)

Σ(X - mean)^2 = 0

To achieve this, the values of X and the mean must be the same.

Hence all 4 numbers (X) must be the same in other to have a mean value which is equal to X

For instance :

If X = 3, 3, 3, 3 (since Repetition is allowed)

Man value = (3+ 3+ 3+ 3) / 4 = 12 / 4 = 3

Σ(3 - 3)² = 0 for all values of x

√Σ(x - mean)² / n = 0 ; if all values of x are the Same

n = Number of observations

A possible list of values is (3,3,3,3)

4 0
2 years ago
The coordinate grid below shows triangle ABC and its image after translation, triangle A'B'C': Triangles ABC and A prime, B prim
vesna_86 [32]

Answer:

y+6

Step-by-step explanation:

If we increase x then we need to do it with y by the same number.

We can not increase with different numbers.

Our rule of translation now is (x+6,y+6)

(x,y)=(x+6,y+6)

We have A(-6,2) then A'(0,8)

B(-5,5) then B'(1,11)

7 0
2 years ago
Read 2 more answers
What’s the approximate circumference of a circle with radius 10 feet?
Elis [28]

Answer: C≈62.83ft

Step-by-step explanation:

simply take your radius and times it by 2 and you get 20. then times twenty by pi.

8 0
3 years ago
Read 2 more answers
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