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shepuryov [24]
3 years ago
11

What is the sum of the polynomials?

Mathematics
1 answer:
lesya [120]3 years ago
5 0

Add the like terms:

8x2+x2=9x2

-9y2-3y2=-12y2

-4x-7x=-11x

Combine each term:

9x2-12y2-11x

Hope this helps!!

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You are creating an emergency fund and decide to place $415.00/month in an account that earns a 3.75 APR. How much interest accr
hoa [83]

At the end of the first full month the interest acquires is $ 1.30.

<u>Step-by-step explanation:</u>

Since we are looking for the interest for full month, we have to divide the APR by 12.

Because APR is the interest amount for the full year.

So 3.75 % = 3.75/100 = 0.0375

Now multiplying, we will get

415 × 0.0375/12 = $ 1.30

4 0
3 years ago
Problem 2:
kifflom [539]

Answer:

The answers to the questions about problem 2 are:

  1. The fraction of the length after Priya stops two times is 3/4.
  2. The fraction of the length after Priya stops four times is 15/16.
  3. Priya will never reach the end of the hallway.

Step-by-step explanation:

The explanation about each answer is below:

1. In the first stop, Priya has walked half of the total length, and there would still be half the hallway, however, when she stops the second time, she has walked the half of the half, I mean:

\frac{1}{2}/2=\frac{1}{4}

If you add the two values you obtain the total distance traveled by Priya:

\frac{1}{2}+\frac{1}{4}= \frac{3}{4}

And the distance traveled in two stops is 3/4 of the total length of the hallway.

2. With four stops the system is the same, we know with two stops Priya travels 3/4 of the hallway, now with the third stop, she will travel half of the remaining distance:

\frac{1}{4}/2=\frac{1}{8}

And in the fourth stop she will travel half of the remaining, I mean:

\frac{1}{8}/2=\frac{1}{16}

Now, we add all the values of the distances obtained:

\frac{3}{4}+\frac{1}{8}+\frac{1}{16}= \frac{15}{16}

So, the distance traveled by Priya in the fourth stop is 15/16 of the total length of the hallway.

3. How we know, the numbers are infinite, in the same forms the distances, by this reason, how the problem says that Priya walks just half of the distance, she will never reach the end because despite she has very near of the end, she will continue walking just half and ever smaller distances.

3 0
3 years ago
the book fair had a sale where 6 book were $20.46 if you wanted to buy 7 books ,how much money would you need ?
Rina8888 [55]

Answer:

$23.87

Step-by-step explanation:

Start by finding out how much one book costs-

$20.46/6=3.41

Then find out how much seven books cost- 3.41 (7)=$23.87

4 0
3 years ago
Read 2 more answers
On my brother's 14th birthday, he was 160 cm tall. Within exactly one year, his height increased by 6%. How tall was he on his 1
Charra [1.4K]

Answer:

170 cm

Step-by-step explanation:

160+.06*160=160+9.6=169.6

8 0
3 years ago
Rewrite this polynomial in STANDARD FORM:<br>5x-10x^2+8x^3​
Ainat [17]

Answer:

8 {x}^{3}   -  10 {x}^{2}  + 5x

Step-by-step explanation:

5x - 10 {x}^{2} + 8 {x}^{3}   \\   \red{ \bold{= 8 {x}^{3}   -  10 {x}^{2}  + 5x}} \\ is \: in \: the \: standard \: form \\

4 0
3 years ago
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