3 years ago

What is the sum of the polynomials?

Mathematics

2 answers:

Marizza181 [45]3 years ago

8 0

$- {x}^{2} + 9 - 3 {x}^{2} - 11x + 4 \\ = - 4 {x}^{2} - 11x + 13$

2nd answer

notka56 [123]3 years ago

4 0

Answer:

Option B. -4x² - 11x + 13

Step-by-step explanation:

Given polynomials are ( -x² + 9 ) and ( -3x² - 11x + 4 )

We have to add them.

( -x² + 9 ) + -3x² - 11x + 4 )

-x² + 9 - 3x² - 11x + 4

Now we will collect similar terms

( -x² - 3x² ) - 11x + ( 9 + 4 )

-4x² - 11x + 13

Therefore, option B is the answer.

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Use the position function s(t) = –16t2 + 800, which gives the height (in feet) of an object that has fallen for t seconds from a

Ostrovityanka [42]

Answer:

96 ft/s

Step-by-step explanation:

We can start by deriving the equation of the velocity, which is the derivative of the position equation:

$v(t) = \frac{ds}{dt} = (-16t^2)' + 800' = -32t$

After 3 seconds, the wrench would achieve a speed of

v(3) = -32t = -32*3 = -96 ft/s

So it's falling at the rate of 96 ft per second after 3 s

4 0

4 years ago

Give one example of when you would use a frequency table to solve a problem

AlekseyPX

Answer:

Step-by-step explanation:

Consider a group of 50 people whose blood groups are given below:

A, B, A, B, AB, AB, O, O, O, AB, O, A, A, B, O, A, A, A, B, AB, B, A, AB, O, B, A, A, A, AB, AB, AB, O, B, O, A, O, A, B, B, O, A, AB, A, B, AB, B, A, AB, A, B

To present the above information, we need a frequency table.

Blood group Frequency

A 17

B 12

AB 11

O 10

4 0

3 years ago

A bird leaves its nest and travels 14 miles per hour downwind for x hours. On the return trip, the bird travels 4 miles per hour

VikaD [51]

Answer:36

Step-by-step explanation:

6 0

4 years ago

Subtract : 5/6 from 7/4

castortr0y [4]

7/4 - 5/6

42/24-20/24

Answer = 22/24

hope this helps

4 0

3 years ago

Read 2 more answers

Solve x^3 = 125 A) x = 5 B) x = 25 C) x = 5 √5 D) x = 1,953,125

stellarik [79]

The answer is A. x = 5 because if you multiply 5 by itself 3 times i equals to 125.

8 0

3 years ago