SOS help i can't figure out this math problem

Answers

Answer 1

Answer: You would subtract each term of g(x) from f(x)

f(x) = 9x^3 + 2x^2 - 5x + 4
g(x) = 5x^3 - 7x + 4

9x^3 - 5x^3 = 4x^3

2x^2 - 0 = 2x^2

-5x - (-7x) = 2x

4 - 4 = 0

FINAL ANSWER:
4x^3 + 2x^2 + 2x

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How much does a 5 pound bag of flour weigh in Newtons?

Answers

OK. This is just a conversion from pounds to Newtons on Earth.

You could go look up the weight of a kilogram of mass in pounds,
but you still would not know how many newtons that is. I'll give it
to you in just a second.

Here is how I think you have to do it:

The weight of any mass in newtons = (mass) x (acceleration of gravity).

Acceleration of gravity on Earth is 9.81 m/s² .

So the weight of 1 kilogram of mass is (1) x (9.81) = 9.81 newtons.

When you look up the weight of a kilogram, it says " 2.2 pounds ".

Now you have what you need ! 2.2 pounds = 9.81 newtons .

You can use a proportion for the bag of flour:

9.81 newtons / 2.2 pounds = 'x' newtons / 5 pounds .

Now you just solve the proportion for 'x' ... cross multiply and all that stuff.

I hate to just throw an answer at you and have you run away with it,
because then you won't know how to solve the next one. So I'll just
stop here. I know you can finish it off with the proportion.

Liam rode his bike to the store every day. It took him 45 minutes to get to school and 45 minutes to get home. If he rode for 3 weeks, how many minutes will he ride in all?

Answers

Answer:

1,890 minuts

Step-by-step explanation:

3 weeks = 7 days x 3 = 21 days

He rides his bike for "45 minutes to get to school and 45 minutes to get home" which is 90 minutes per day.

Therefore, in total, he rode for 21 days x 90 minutes per day = 1,890 minutes

a newborn boa constrictor measure 18 inches long. An adult boa constrictor measures 9 times the lenght of the newborn plus 2 inches. how long is the adult?

Answers

newborn = 18 inches
adult boa = 9 * 18 + 2 = 164 inches

Since all the information is given, then merely put the necessary facts in order.

Had the length of the newborn been unknown, it would have been represented by x.

9x + 2 = 164
9x = 164 - 2
9x = 162
9x/9 = 162/9
x = 18

Start with 18 × 9 = 162
Next add 162 + 2 = 164
Last put 164 on the papper

Three months ago , santos could walk 2 miles in 40 minutes. Today he can walk 2 miles in 25 minutes. What is the percent change?