Answer: a
Step-by-step explanation:
(6z³+3z²-4z+8) - (4z²-3z+2)
all of the numbers in the second set of parenthesis are going to have their signs switched so...
(6z³+3z²-4z+8) + (-4z²+3z-2)
now you add the two sets of parenthesis
<u>6z³ - z² - z + 6</u>
<u />
Answer:
Hope it works for u
Step-by-step explanation:
As we have given two shapes bathroom
square and rectangle
Parameter of square= sum of all the sides ( : In square all sides are equal
Parameter of square= 4*L = 4*(x+3) (:L=x+3
similarly,
In rectangle opposites sides are equal hence
Perimeter of rectangle= 2*length+2*width ( : length=x+4,width can't be seen clearly so I assume and take it width=x+1 hope this is equal to the width of ur question otherwise do the calculation by ur self).
Perimeter of rectangle= 2*(x+4)+2(x+1)
so now we have to find the value of "x" for which both perimeter are equal, so
perimeter of square= perimeter of rectangle
4*(x+3)=2*(x+4)+2(x+1) we can also write as
<h2>
2(x+3)+2(x+3)=2(x+4)+2(x+1)</h2><h3>
This is the linear equation required</h3><h3>
now to find value of "x"</h3><h3>
simplify both sides, we get</h3><h3>
4x+12=4x+10</h3><h2>
0≠2 so that not true and also there is no value of "x"</h2>
for which both parameters become equal
<h2>
so from my side "b" option is correct</h2>
Please brain-list it if u find it help-full it requires effort!
Answer:
Step-by-step explanation:
x - 3 < 4
x < 4 + 3
x < 7
Answer:
1) A system of two linear equations to represent this problem
x+y=20 and x-y=12
2) The numbers are x=16 and y=4
Step-by-step explanation:
Let x and y be the two numbers
Given that the sum of the two numbers is 20
That is 
and the difference is 12
That is 
1) A system of two linear equations to represent this problem
2). Noe Solve the system to find the 2 numbers:
Adding the equations (1) and (2) we get
_____________
2x=32
Therfore x=16
Now substitute x=16 in equation (1) we get
Therefore y=4
Therefore the numbers are x=16 and y=4
The answer would be D. 200 - 20d.
This is because the question asks for pages left after reading for "d" (however many) hours. Since the book has 200 books, you'd subtract from that number since it's the "starting number" of pages. If he reads 20 pages per hour, you would multiply those together to get how many he has read, then subtract that number from 200, to get the amount of pages left.
I hope this helps!
