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ehidna [41]
2 years ago
6

Evaluate 2x2– 4xy – 3y2for x = 1 and y = - 1

Mathematics
1 answer:
nalin [4]2 years ago
6 0

Answer:

The answer is 3

Step-by-step explanation:

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By rounding to 1 significant figure, estimate<br> 6.4 x 7.35
densk [106]

Answer:

6.4 x 7.4 =47.36

Step-by-step explanation:

7.35 rounded will be 7.4

5 0
3 years ago
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How to solve rational equations
VashaNatasha [74]

Answer:

A rational number is a number that can be represented a/b where a and b are integers and b is not equal to 0.

   Find the common denominator.

   Multiply everything by the common denominator.

   Simplify.

   Check the answer(s) to make sure there isn't an extraneous solution.

4 0
3 years ago
A linear function contains the following points.
nydimaria [60]
Find the slope first using m=y2-y1/x2-x1
-4-4/0-4 =2

The y intercept is when x=0.
One of the given points is (0,-4)
The y intercept is y=-4
4 0
3 years ago
2. Is x² + 4√x a polynomial ? Justify your answer. ​
nexus9112 [7]

Answer:

No it isn't

As the variable "x" has root in it which means it isn't a whole number and for a expression to be a polynomial the variable must be whole no.

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>you</em><em>!</em>

6 0
1 year ago
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Suppose that demand in period 1 was 7 units and the demand in period 2 was 9 units. Assume that the forecast for period 1 was fo
Zepler [3.9K]

Answer:

Step-by-step explanation:

Forecast for period 1 is 5

Demand For Period 1 is 7

Demand for Period  2 is 9  

Forecast  can be given by

F_{t+1}=F_t+\alpha (D_t-F_t)

where

F_{t+1}=Future Forecast

F_t=Present\ Period\ Forecast

D_t=Present\ Period\ Demand

\alpha =smoothing\ constant  

F_{t+1}=5+0.2(7-5)

F_{t+1}=5.4

Forecast for Period 3

F_{t+2}=F_{t+1}+\alpha (D_{t+1}-F_{t+1})

F_{t+2}=5.4+0.2\cdot (9-5.4)

F_{t+2}=6.12  

8 0
3 years ago
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