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sammy [17]
3 years ago
5

8 to the -2nd power times a to the 7th power

Mathematics
1 answer:
malfutka [58]3 years ago
8 0
A^7/64. When something is to a negative power, move it to the denominator. <span />
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3x – 2y = 17 <br> –2x – 5y = 14 <br> Solve using Elimination Please show work
OleMash [197]

Answer:

The solution is x=3 , y=-4 or (3,-4)

Step-by-step explanation:

Given equations (1 and 2) are:

3x- 2y = 17\\-2x -5y = 14

To solve a system of equation with elimination method, the co-efficients of one of the variables has to be equated and then the equations are added or subtracted to get an equation in one variable.

Multiplying equation 1 by 2:

2(3x-2y) = 2*17\\6x-4y = 34\ \ \ \ \ Eqn\ 3

Multiplying equation 2 by 3

3(-2x-5y) = 3*14\\-6x-15y = 42\ \ \ \ Eqn\ 4

Adding equation 3 and 4

(6x-4y) + (-6x-15y) = 34+42\\6x-4y-6x-15y = 76\\-19y = 76\\\frac{-19y}{-19} = \frac{76}{-19}\\y = -4\\

Putting y = -4 in equation 1

3x-2(-4) = 17\\3x+8 = 17\\3x = 17-8\\3x = 9\\\frac{3x}{3} = \frac{9}{3}\\x = 3

Hence,

The solution is x=3 , y=-4 or (3,-4)

3 0
2 years ago
The scatter plot shows the relationship between the test scores of a group of students and the number of hours they spend on soc
Georgia [21]

Answer:

A: Not sure what A is called sorry. B is called the outliner. He could be generally better at the subject and understood it more, he could have cheated on his test. He could have simply guessed and got  lucky.

B: The longer he/she spent on social media the worse their test scores became.

Step-by-step explanation:

7 0
3 years ago
Please help me find the value of x! Thank you!
Arisa [49]

Answer:

there is no value its letter

Step-by-step explanation:

there is no value to a letter duh


3 0
3 years ago
A 2-gallon container of laundry detergent costs $19.68. what is the price per pint?
BigorU [14]

Answer:

0.81

Step-by-step explanation:

There are 8 pints = 1 gallon

8 times 2= 16/19.68=0.813

each pint is 0.81 cents

6 0
3 years ago
Reflection across the y = x
Anna [14]
H’(-7,4) I’:(-7,8) J’:(-3,10) K’:(-3,4)
6 0
3 years ago
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