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d1i1m1o1n [39]
3 years ago
9

Which is the value of this expression when j=-2

Mathematics
1 answer:
Nuetrik [128]3 years ago
3 0

Answer:

Step-by-step explanation:

(jk^-2/j^-1k^-3)^3

(-2)(-1)^-2

-------------               ^3

(-2)^-1(-1)^-3

switch negative exponenst to other side

(-2)(-2)(-1)^3

__________

(-1)^2

4(-1)

-----

1

= -4

REMEMBER all to the 3rd power!

(-4)^3

-64

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Plz, help ASAP !!!!!!!!
mr_godi [17]

Answer:

145 degrees.

Step-by-step explanation:

This line is 180 degrees.  So if you take 180 and subtract 35, you should get 145.  Hope this helped!

-Kirito

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3 years ago
AYO HELP ME PLEASE
myrzilka [38]

Answer:

Start at 80(y) go to 10:00(x)

Step-by-step explanation:

Joey's house is the same distance to his friend's house as his friend's house is to his. This means that if the travel at the same rate the rate of change (slope) will be the same. However because the friend is going the opposite direction of joey the rate of change (slope) will have the opposite sign (negative vs positive, down vs up)

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3 years ago
The variables x and y are inversely proportional, and y = 2 when x = 3. What is the value of y when x = 9?
Nina [5.8K]

Answer:

\huge \purple{ \boxed{ y =  \frac{2}{3} }}

Step-by-step explanation:

Since, the variables x and y are inversely proportional.

\therefore \: y  \:  \: \alpha \:  \:  \frac{1}{x}  \\  \implies \: y =  \frac{k}{x} \\ (k = constant)  \\  \implies \: xy = k ...(1)\\ plug \: y = 2, \:  \: x = 3   \: in  \: equation \: (1) \\ we \: find \\ 2 \times 3 = k \\ k = 6 \\ plug \:k = 6   \: in  \: equation \: (1)  \\ xy = 6 \\ (this \: is \: the \: equation \: of \: variation) \\ when \: x = 9 \:  \: y =?  \\  \\ 9y = 6 \\  y =  \frac{6}{9}  \\ \huge \red{ \boxed{ y =  \frac{2}{3} }}

4 0
3 years ago
Evaluate (-4^2) - (3 *4) + 9
Elanso [62]

-19

-4 * -4 - 12 + 9

-16-12 +9

-28 + 9

5 0
3 years ago
Click on the photo to get a better view, I really don’t understand it
zaharov [31]

Answer:

1)107

2)43

Step-by-step explanation:

Triangles interior angles add up to 180 degrees. In the first one, the first two angles are 31and 42, and if interior angles add up to 180, the equation should be 31+42+x=180 x=107.

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Hope this helps :D Please mark brainliest if correct :D

3 0
3 years ago
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