All categories

2 years ago

Add and Simplify. (2x-y-2z-6)+(-6x+4y+3z+8)

Mathematics

2 answers:

MAVERICK [17]2 years ago

6 0

Answer:

x+y+z=6,x-2y-z=6,2x-y-2z=6

Step-by-step explanation:

Hope this helps :)

asambeis [7]2 years ago

5 0

Answer:

-4x + 3y + z + 2

Step-by-step explanation:

You might be interested in

if x is a positive integer, for how many dofferent values of x is square root 48 over x a whole number

Mazyrski [523]

Answer:

<h2><em>Therefore, for 3 values of 'x', the given fraction is a square. So, for those 3 values of 'x', the square root of the fraction will be a whole number. Thus, the answer is 3.</em></h2>

5 0

3 years ago

Please Answer I Would Really Appreciate It :)

lbvjy [14]

Picture doesn’t show up!!

6 0

3 years ago

-x + 4y when x = -4/5 and y = 1/3

Usimov [2.4K]

we have the expression

$-x+4y$

Evaluate for x=-4/5 and y=1/3

substitute the values of x and y in the given expression

$\begin{gathered} -(-\frac{4}{5})+4(\frac{1}{3}) \\ \frac{4}{5}+\frac{4}{3} \\ \frac{3\cdot4+5\cdot4}{15} \\ \frac{32}{15} \end{gathered}$

the answer is 32/15

8 0

1 year ago

M(-5,9) and N(-2,7)<br> P(-3,-7) and Q(3,-5

jek_recluse [69]

Answer:

M=(4,112)=(4,5.5) A

Step-by-step explanation:

The midpoint for two points P=(px,py) and Q=(qx,qy) is M=(px+qx2,py+qy2).

We have that px=3, py=2, qx=5, qy=9.

Thus, M=(3+52,2+92)=(4,112).

7 0

2 years ago

Find the sum of the first 30 multiples of 8.

Anna11 [10]

Step-by-step explanation:

sum of the arithmetic sequence

a1 = 8

a2 = a1 + 8 = 8+8 = 16

...

an = 8×n

the sum of the first n elements of such a series is

n/2 × (2×a1 + (n - 1)×d]

with d being the difference between 2 consecutive elements (= the added constant).

so,

s30 = 30/2 × (2×8 + 29×8) = 15×(31×8) = 3720

3 0

2 years ago