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MaRussiya [10]
3 years ago
15

HELP ME I NEED HELP WITH THIS!?!?! I WILL MARK BRAINLIEST!!!

Mathematics
1 answer:
laila [671]3 years ago
8 0

Answer:

The answer is -70

Step-by-step explanation:

How I got the answer.....

-21-49 = -70

Hope this helps! :)

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2⋅(3^6⋅3^−5)<br> PLZ NO LINK PLZZZZ
miskamm [114]
Because you are multiplying you add the exponents together. -5+6=1 so you only have 3 to the power of one left over or just 3 in the parentheses. Then multiply 2x3 to get 6.
4 0
3 years ago
I can’t figure this out someone please
marishachu [46]

Answer:

a^6/(b^12c^3d)

Step-by-step explanation:

7 0
3 years ago
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All steps for: x/x-2 + x-1/x+1= -1
lorasvet [3.4K]

Answer:

\large\boxed{x=0\ \vee\ x=1}

Step-by-step explanation:

Domain:\\\\x-2\neq0\ \wedge\ x+1\neq0\\\\x\neq2\ \wedge\ x\neq-1\\\\\boxed{D:\ x\in\mathbb{R}-\{-1,\ 2\}}\\\\=============================

\dfrac{x}{x-2}+\dfrac{x-1}{x+1}=-1\qquad\text{subtract}\ \dfrac{x-1}{x+1}\ \text{from both sides}\\\\\dfrac{x}{x-2}=-1-\dfrac{x-1}{x+1}\\\\\dfrac{x}{x-2}=\dfrac{-(x+1)}{x+1}+\dfrac{-(x-1)}{x+1}\\\\\dfrac{x}{x-2}=\dfrac{-(x+1)-(x-1)}{x+1}\\\\\dfrac{x}{x-2}=\dfrac{-x-1-x+1}{x+1}\\\\\dfrac{x}{x-2}=\dfrac{-2x}{x+1}\qquad\text{cross multiply}

x(x+1)=-2x(x-2)\qquad\text{use the distributive property}\\\\(x)(x)+(x)(1)=(-2x)(x)+(-2x)(-2)\\\\x^2+x=-2x^2+4x\qquad\text{add}\ 2x^2\ \text{to both sides}\\\\3x^2+x=4x\qquad\text{subtract 4x from both sides}\\\\3x^2-3x=0\qquad\text{distributive}\\\\3x(x-1)=0\iff 3x=0\ \vee\ x-1=0\\\\x=0\in D\ \vee\ x=1\in D

4 0
3 years ago
Read 2 more answers
Another path in the community is 2.1 miles long. It has benches at 1/3 And 2/3 of the distance from beginning to end of the path
emmasim [6.3K]

Answer:

bench at 1/3 is at 0.7 miles

bench at 2/3 is at 1.4 miles

Step-by-step explanation:

Given

Path length, x= 2.1 miles

It has benches at 1/3 And 2/3 of the distance from beginning to end of the path

1/3 of the distance from beginning to end of the path= 1/3x

Putting value of x in above we get:

                  =1/3(2.1)

                  =2.1/3

                  =0.7

The bench at 1/3 of the distance is at 0.7 miles from the beginning to end of path

2/3 of the distance from beginning to end of the path= 2/3x

Putting value of x in above we get:

                  =2(2.1)/3

                  =4.2/3

                  =1.4

The bench at 2/3 of the distance is at 1.4 miles from the beginning to end of path!

5 0
3 years ago
The distance, y, in miles, traveled by a car for a certain amount of time, x, in hours, is shown in the graph below:
Hoochie [10]

Answer:

It travels for 1 h, then stops for 1 h, and finally travels again for 3 h.  

Step-by-step explanation:

The sloped parts of the graph are where the car is moving.

For example, in the first hour the distance travelled changes from zero to 12 mi.

The horizontal part of the graph is where the car is stopped.

For example, between hours 1 and 2, the distance travelled stays the same at 12 mi.

The car travels for 1 h, then stops for 1 h, and finally travels again for 3 h.

4 0
3 years ago
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