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geniusboy [140]
3 years ago
11

4. Look at the system of equations.

Mathematics
1 answer:
ser-zykov [4K]3 years ago
8 0

Answer:

B. 4x + 2x - 1 = 2

Step-by-step explanation:

Option B shows a correct step in using substitution to solve the system of equations.

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When 27 times x squared times z all over negative 3 times x squared times z to the sixth power is completely simplified, the exp
marysya [2.9K]

Answer:

  -5 or 5 depending on how you write the simplified form

Step-by-step explanation:

\dfrac{27x^2z}{3x^2z^6}=9x^{2-2}z^{1-6}\\\\\boxed{=9z^{-5}=\dfrac{9}{z^5}}

__

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  1/a^b = a^-b

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Some folks like their simplified form to contain only positive exponents. Other folks avoid unnecessary fractions. Choose the form that satisfies your grader.

4 0
3 years ago
Evaluate the limit of ((1/4 + 1/x)/(4+x)) as x -> -4​
photoshop1234 [79]

Hello from MrBillDoesMath!

Answer:

-1/16

Discussion:

Rewrite   ((1/4 + 1/x)/(4+x))  as

(1/4 + 1/x)  *  (1/(4+x)) =                 => put num. over common denom,

( (x+4)/4x) *  (1/(4+x)) =                 => cancel (x+4) from num. and denom.

(1/4x)

So as x ->-4, (1/4x) approaches ( 1/ ( 4 * (-4) )   ) = -1/16

Thank you,

MrB

6 0
4 years ago
What are the coordinates of quadrilateral A'B'C'D'?
Andrei [34K]
0,3 3,3 2,3 and 1,2 (from A to D)
8 0
3 years ago
2. The next Saturday, the two friends leave at the same time a ain, and Kiran jogs twice
gladu [14]

Answer:

the end by the finish line

5 0
2 years ago
What is the area of this triangle??
dezoksy [38]

Answer:

248

Step-by-step explanation:

A=height b times base divided by two

which is:

A= 16 times 31 divided by two

6 0
2 years ago
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