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slava [35]
3 years ago
5

Evaluate the polynomial 6x - y, for x = - 3 and y = 2.

Mathematics
2 answers:
Ivahew [28]3 years ago
5 0

Answer:

Do the order of operations after you plug everything in.  If that doesn't help do a proof.

6x-y turns into 6(-3)-2.  Do parenthesis () first, (-18)-2. You will get the finally answer of -20.

professor190 [17]3 years ago
3 0

Answer:

<h2>-20</h2>

Step-by-step explanation:

6x - y

Put the values of x = -3 and y = 2 to the expression:

6(-3) - 2 = -18 - 2 = -20

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which statement is true about the equations –3x 4y = 12 and x1/4 – 1/3y = 1? the system of the equations has exactly one solutio
finlep [7]
If you would like to solve the system of equations, you can do this using the following steps:

-3x + 4y = 12
x * 1/4 - 1/3 * y = 1 ... x * 1/4 = 1 + 1/3 * y ... x = 4 + 4/3 * y
_____________
<span>-3x + 4y = 12
</span>-3 * (4 + 4/3 * y) + 4y = 12
-12 - 4y + 4y = 12
-12 = 12
-12 - 12 = 0
-24 = 0

The correct result would be: <span>the system of the equations has no solution; the two lines are parallel.</span>
4 0
3 years ago
A rectangle with an area of 5/8 ft² is dilated by a factor of 8. What is the area of the dilated rectangle?
gulaghasi [49]

Answer:

40 ft²

Step-by-step explanation:

Let the length of the original rectangle be L and original Breadth be B

it is given that the original area  is 5/8 ft²

i.e.

Original Length x Original Breadth = Original Area, or,

LB = 5/8 ft² ------------------(1)

Given that the dilation factor is 8,

Hence,

New Length = 8L and New Breadth = 8B

THerefore,

New Area = 8L x 8B

= 64 LB  (from (1) above , we know that LB = 5/8 ft², substitute into expression)

= 64 (5/8)

= 40 ft²

4 0
4 years ago
What two numbers multiply to get 77 but add up to 18?
Mnenie [13.5K]
So the question says:
____ + ____ = 18 
____ * ____ = 77 
so the answer is 7 and 11 :)))
lets check it:
7 + 11 = 18 
7 * 11 = 77 
I hope this is helpful
have a nice day
6 0
3 years ago
Read 2 more answers
Write the expression (a^8)2/3 in simplest form.
Harrizon [31]

Answer:

2a^8/3

Step-by-step explanation:

I hope it's correct

3 0
3 years ago
. A restaurant has a pedestal for displaying the day’s desserts to customers. Both the base and top of the pedestal are level an
Stels [109]
Please read the attached file

7 0
3 years ago
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