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dezoksy [38]
2 years ago
15

Need some help please

Mathematics
2 answers:
marysya [2.9K]2 years ago
8 0
What grade, I may be able to help
MArishka [77]2 years ago
4 0

Answer:old account balance, transaction amount, new account balance

Step-by-step explanation:

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If there are 512 relation from a set A = [1,2,3] to a set B, then find number of elements in B ​
kramer

<u>EXPLANATION</u><u>:</u>

Given set A = { 1,2,3}

n(A) = 3

Let the n(B) be n

Total number of relations from A to B = 2^(3×n) =2^3n

According to the given problem

Total relations are = 512

⇛2^3n = 512

⇛2^3n = 2⁹

If bases are equal then exponents must be equal

⇛3n = 9

⇛n = 9/3

⇛n = 3

<h3>So, Number of elements in the set B = 3</h3>
8 0
2 years ago
rico wants to buy a battery operated toy car which caused 580 7.50 he has already save one 50.00 points his ninong give him 200
myrzilka [38]

Answer:

19 days

Step-by-step explanation:

1 - Make an equation with the variables provided.

150 + 200 + 12.50x = 587.50

2 - Simplify both sides.

350 + 12.50x = 587.50

3 - Subtract 350 from both sides.

12.50x = 237.50

4 - Divide by 12.50 to find your x variable.

x = 19 days

Brainliest would be appreaciated! :-)

3 0
2 years ago
If rs || mn ,then the value of a is
seraphim [82]
40 is the answer =3 hope it works
4 0
3 years ago
Read 2 more answers
Expand the exppresion -7(k-3)
Lana71 [14]

Answer:

-7k+21

Step-by-step explanation:

8 0
2 years ago
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Write an equation of the ellipse with foci at (0,+12) and vertices at (0,+13)
nekit [7.7K]
 To solve this problem you must apply the proccedure shown below:
 1. You have that the ellipse given as a vertical major axis (a=13), therefore, taking the ellipse with its center at the origin, you have the following equation:
 (y^2/a^2)+(x^2/b^2)=1
 2. You have the distance from the center of the ellipse to the focus:
 c=12, therefore, you can calculate the value of b, the minor radius:
 c^2=a^2-b^2
 b=√(13^3-12^2)
 b=5
 3. Therefore, the equation is:
 a^2=169
 b^2=25
 (y^2/169)+(x^2/25)=1
 The answer is: (y^2/169)+(x^2/25)=1 
6 0
2 years ago
Read 2 more answers
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