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3 years ago

If A=3x2+5x-6and B=-2x2-6x+7then A-B equals

1 answer:

6 0

Let's simplify step-by-step.3x^2+5x−6−(−2x^2−6x+7)Distribute the Negative Sign:=3x^2+5x−6+−1(−2x^2−6x+7)=3x^2+5x+−6+−1(−2x^2)+−1(−6x)+(−1)(7)=3x^2+5x+−6+2x^2+6x+−7Combine Like Terms:=3x^2+5x+−6+2x^2+6x+−7=(3x^2+2x^2)+(5x+6x)+(−6+−7)=5x^2+11x+−13Answer:=5x^2+11x−13

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You currently have 12 bottles of water on your shelf, and want to keep a minimum level of 6 bottles at all times. You average sa

Iteru [2.4K]

Answer:pretty sure its 20

Step-by-step explanation: so i took 7 and multiplied it by 2 because that is how much is sold every day and got 14. then added six to that and got 20. then i wrote this on my paper:

20 18 16 14 12 10 8

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so by Saturday you should have 8 and that would leave you 6 on sunday after you sell 2. does that make sense?

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2 years ago

Samantha opened a savings account and deposited $200.00. The account earns 10% interest, compounded monthly. If she wants to use

noname [10]

Answer:

200(1.10^1)

Step-by-step explanation:

6 0

2 years ago

36.

nalin [4]

Answer:

Step-by-step explanation:

option (d) 4hrs 40mins

8 0

2 years ago

You and your friend are practicing for a rowing competition and want to know how far it is to an island in the Indian River Lago

zepelin [54]

The drawing is missing, so i have attached it.

Answer:

24 yards

Step-by-step explanation:

From the image, we can see that AB and DE are both adjacent sides of their respective triangles.

While, CE and BC are both opposite sides of their respective triangles

Now, from your side, x is the distance to the island.

So, from ratio of similar triangles, we can find x.

Thus;

8/x = 3/9

Cross multiply to get;

8 × 9 = 3x

3x = 72

x = 72/3

x = 24

Thus, distance from your side to the island is 24 yards

6 0

2 years ago

A survey of students at a university shows that 4 out of 5 drink coffee. Of the students who drink coffee, 1 out of 6 adds crea

Andru [333]

The number who drink coffee is 3/4 of 8000, so ...
... (3/4)×8000 = 6000.
Of those, 1/5 add cream, so the number of coffee drinkers who add cream to their coffee is ...
... (1/5)×6000 = 1200.
_____
Alternate solutions
We have computed ...
... (1/5)×((3/4)×8000) = 1200
Since multiplication is associative, you can multiply the fractions first, if you wish:
... ((1/5)×(3/4))×8000 = (3/20)×8000
... = 24000/20 = 1200
or
... = 3×(8000/20) = 3×400 = 1200

6 0

2 years ago