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MrMuchimi
3 years ago
8

What is the ordered pair of y=-5/9x-6

Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0

Answer:

B), x=-1, y=-2, z=1.

Step-by-step explanation:

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Choose the correct written expression for: 25 – (3 x 4).
just olya [345]

Answer:

the quotient of 3 and 4 subtracted from 25.

Step-by-step explanation:

3 0
2 years ago
What is 13*14+56-31+854=
levacccp [35]

Answer:

1,061. your welcome

6 0
3 years ago
Math math math!!!! :/
vekshin1

the answer is B your welcome

6 0
2 years ago
Read 2 more answers
Help me with this one
Artist 52 [7]

9514 1404 393

Answer:

  "complete the square" to put in vertex form

Step-by-step explanation:

It may be helpful to consider the square of a binomial:

  (x +a)² = x² +2ax +a²

The expression x² +x +1 is in the standard form of the expression on the right above. Comparing the coefficients of x, we see ...

  2a = 1

  a = 1/2

That means we can write ...

  (x +1/2)² = x² +x +1/4

But we need x² +x +1, so we need to add 3/4 to the binomial square in order to make the expressions equal:

  x^2+x+1\\\\=(x^2+x+\frac{1}{4})+\frac{3}{4}\\\\=(x+\frac{1}{2})^2+\frac{3}{4}

_____

Another way to consider this is ...

  x² +bx +c

  = x² +2(b/2)x +(b/2)² +c -(b/2)² . . . . . . rewrite bx, add and subtract (b/2)²*

  = (x +b/2)² +(c -(b/2)²)

for b=1, c=1, this becomes ...

  x² +x +1 = (x +1/2)² +(1 -(1/2)²)

  = (x +1/2)² +3/4

_____

* This process, "rewrite bx, add and subtract (b/2)²," is called "completing the square"—especially when written as (x-h)² +k, a parabola with vertex (h, k).

5 0
2 years ago
Determine the density of the rock using correct significant digits. The mass of the rock is 25.69 g.
Dvinal [7]
Density = mass / volume

Mass = 25.69g and Volume = 10 mL

D = 25.69g / 10mL 

Density = 2.569 g/mL
5 0
3 years ago
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