For 11, we start by plugging 1 in, getting 2(1)^2+1-5=-2=y

Plugging 1+m instead, we get 2(1+m)^2+1+m-5=2(1+2m+m^2)+1+m-5
= 2+4m+2m^2+1+m-5= 2m^2+5m-2. We have to find the difference between that and -2, so 2m^2+5m-2 -(-2)=2m^2+5m

Differentiating 12, we use the Power Rule to get -6x^2+14, and plugging x=1 into it, we get -6(1)^2+14=-6+14=18

4 0

3 years ago

For an upcoming field trip to the science center, the school will allow students to select one extra activity. The school survey

Pani-rosa [81]

The total amount that would be spent on all the activities is $1605.40.

<h3>What is the total amount?</h3>

The total amount that would be spent on movies = (14/25) x 1200 x 1.55 = $1041.60

The total amount that would be spent on planetarium tickets = (7/25) x 1200 x 1.05 =352.80

The total amount that would be spent on backstage passes = (4/25) x 1200 x 1.10 =211.20

Total amount = 211.20 + 352.80 + $1041.60 = $1605.40

Please find attached the complete question. To learn more about addition, please check: brainly.com/question/349488

7 0

1 year ago

(5x²-4x-1)+(2x²-3x+6) simplified

Lady bird [3.3K]

Answer: 7x² - 7x + 5

3 0

2 years ago