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Leviafan [203]
3 years ago
12

Enter the answer. What is ??

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
7 0
The cube root of -64 is -4.
-4 times -4 equals 16. 16 times -4 would give you -64.
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Solve the system of linear equations. <br> −8x+5y=26<br> 9x−3y=−3
Sloan [31]

Answer: x = 3 and y = 10

Step-by-step explanation:

-8x + 5y = 26     .................. equation 1

9x - 3y = -3          ................ equation 2

Solving the system of linear equations by elimination method.

The means we have to make the coefficient of one of the variable the same in order to eliminate the variable first.

Let us eliminate the variable y first , this means we will multiply equation 1 by 3 and multiply equation 2 by 5. Doing this , we have

-24x + 15y = 78      ............. equation 3

45x - 15y = -15     ................ equation 4

Now that we have the same coefficient , we have to check their signs , if the have the same signs , we will subtract , that is , if both are having positive signs , we will subtract , if both have negative signs , we will also subtract but if their signs differ we will add. Following this rule and considering the equations above , the coefficients of y have different signs , so we will add equation 3 and equation 4 , so we have:

21x = 63

x = 63/21

x = 3

Substitute x = 3 into equation 1 or equation 2 to get the value of y , using equation 2 , we have

9x - 3y = -3

9(3) - 3y = -3

27 - 3y = -3

27+3 = 3y

30 = 3y

30/3 = y

Therefore y = 10

Therefore : x = 3 and y = 10

8 0
4 years ago
What is n x 2 squared= 14
zepelin [54]

Answer:

n=3.5

Step-by-step explanation:

2²=4

14÷4=3.5

3.5×4=14

3.5×2²=14

7 0
2 years ago
Create an exponential function that starts at 650 and increases by 12% us the form f(x) = p (1=r)^x
ololo11 [35]
F(x)= 650(1+.12)^x

f(x) = 650(1.12)^x
4 0
3 years ago
Five friends each spent the same amount of money, x, on school supplies. They expected to spend a total of $130, but the actual
Nadusha1986 [10]

Answer:

its the second option

Step-by-step explanation:

hope this helps

8 0
3 years ago
Read 2 more answers
Simplify StartRoot 16 r Superscript 6 Baseline EndRoot
Ksivusya [100]

Answer:

This question is impossible

Step-by-step explanation:

4 0
3 years ago
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