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Serhud [2]
3 years ago
11

Evaluate the polynomial when x=4 y=-4 x^2-3y^2+2xy

Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0
x^2-3y^2+2xy\\\\for\ x=4\ and\ y=-4\\\\substitute\ the\ values\ of\ x\ and\ y:\\\\4^2-3\cdot(-4)^2+2\cdot4\cdot(-4)=16-3\cdpt16-32=16-48-32=-64
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Denice made 9 identical bags using 4 yards of fabric. How much fabric did denice use for each bag
Andrew [12]

Answer:

Denice would have used 2.25 (or 2 1/4) yards of fabric for each bag.

Step-by-step explanation:

First, you have the 9 bags you are making and they all must be the same because they are identical, so you divide the nine bags by the four yards and I got an answer of 2.25 yards per bag. The answer can also be 2 1/4 as well.

3 0
2 years ago
What is this called, like whats the name of this thing??<br> {18 ≤ y ≤ 30}
Tpy6a [65]

Answer:

An inequality.

Step-by-step explanation:

This gives the range of values that y can take.

It can equal 18 or be greater than eighteen but it also could be 30 or less than thirty.

WE read the signs starting from y to the left  and to the right.

So y is greater or equal to 18 and less than or equal to 30.

3 0
3 years ago
The junior and senior classes at Central High School were asked to choose a destination for a field trip. The results are shown
Ann [662]

Solution:

We are given below frequency table:

             Amusement-Park      Museum         Broadway-Show         Total

Juniors                57                      21                      42                          120

Seniors                64                     44                      58                          166

Total                    121                     65                      100                        286

We have to find the percentage of surveyed students who chose the amusement park.

From the table, we see there are total 121 students who chose amusement park out of total 286 students.

Therefore, the percentage of surveyed students who chose the amusement park is given below:

\frac{121}{286}\times 100=42.3\%

Hence, the option A. 42.30% correct.


3 0
3 years ago
Ernesto has already jarred 17 liters of jam and will jar an additional 1 liter of jam every
wlad13 [49]
I think The answer is 45
8 0
3 years ago
Scientific notation 20,000+3,400,000= an example to would be helpful
Viefleur [7K]
20 000 is as much as 20 * 1 000, so we can write it as: 20 * 10^3
3 400 000 is as much as 34 * 100 000, so we can write it as: 34 * 10^5

The sum in scientific notation would look like this:

20 * 10^3 + 34 * 10^5

I hope that's what you meant :)
4 0
3 years ago
Read 2 more answers
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