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Gala2k [10]
3 years ago
5

Simplify each expression by combining like terms 3x^-1 - 10x^-1

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer:

-7/x

Step-by-step explanation:

first, you combine the terms together to get -7x^-1. you cant have negative exponents in the numerator so you move the x^-1 to the denominator. once it move its becomes positive then.

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Write (1/6) to the 3rd power as a product of the same factor.then find the value
andreyandreev [35.5K]
1/216 don’t forget to simplify
3 0
3 years ago
The angles of a triangle add up to 180 degrees.
Alex_Xolod [135]

Answer:

33°

Step-by-step explanation:

We were given that:

1- The angles of a triangle add up to 180 degrees

2- The second angle is 15 degrees larger than the smallest angle

3- The third angle is 3 times as big as the smallest angle

So, first of all, let's call the smallest angle x.

the second angle will be (x + 15°) since it is 15 degrees greater than the smallest angle

and the third will be 3x, since it is 3 times bigger than the smallest angle.

With the information we have, we can form an equation!

180° = x + (x+ 15°) + 3x

180° = 5x + 15°

180° - 15° = 5x + 15° - 15°

165° = 5x

165°/5 = 5x/5

33° = x

therefore, the smallest angle measures 33° degrees, the second angle measures 48° and the third angle measures 99°.

99° + 33° + 48° = 180°

so it is safe to say this answer is correct!

8 0
3 years ago
How to solve answer and explanation
iren2701 [21]

Answer:

j= -4,6

Step-by-step explanation:

j^2 -2j -24 =0

Factor

What 2 numbers multiply to -24 and add to -2

-6*4 = -24

-6+4 = -2

(j-6) (j+4) =0

Using the zero product property

j-6 =0     j+4 =0

j =6            j=-4

5 0
3 years ago
Which expression is a difference of squares?
agasfer [191]
Am not sure but i think its 9m^4-49n^6 hope it helps :)



7 0
3 years ago
A star baseball player earns an annual salary of $8.1 x 10^6. There are 162 games in a baseball season. How much does this playe
ZanzabumX [31]

Divide the annual salary of $8.1 x 10^6 and 162 to find "per game"

8.1 x 10^6 / 162 = 8.1 x 10^6 / (1.62 x 10^2) = 5 x 10^4.


The answer is $50,000

4 0
3 years ago
Read 2 more answers
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