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maxonik [38]
1 year ago
13

What is the sum of the polynomials?

Mathematics
1 answer:
ASHA 777 [7]1 year ago
6 0

Answer:

- 4 {x}^{2}  - 11x + 13

Step-by-step explanation:

( -  {x}^{2}  + 9) + ( - 3 {x}^{2}  - 11x + 4)

- {x}^{2}  + 9 - 3 {x}^{2}  - 11x + 4

- 4 {x}^{2}  - 11x + 13

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What is the area of a triangle with a base of 7 cm and a height of 4cm
Alex777 [14]

Answer:

14 sq cm

Step-by-step explanation:

7 × 4 = 28

28 ÷ 2 = 14

brainliest?

3 0
3 years ago
Alejandro needs to buy bird seed from the local pet store for his parrots. A
Gnesinka [82]

First take note he only has $20 and the bag he must buy is $12.55. Also the loose seeds are $1.49 per pound.

To solve subtract 12.55 from 20

20-12.55=7.45

So after buying the 10 lb bag he has $7.45 left now divide that by 1.49

7.45/1.49=5

So after buying the 10 lb bag he can also buy 5 lb of the loose seeds!


7 0
2 years ago
If y=3 when x=9 find x when y=1<br> &amp; if y=2 when x=0.5 find y when x=3
hram777 [196]
I got -19/655 and i know for sure this isnt the correct answer.
4 0
3 years ago
In your own words, what are the steps to converting decimals to fractions
Elis [28]

Answer:

First

Step-by-step explanation:

You write down the decimal fraction like say .75 you put .75/1. Then you multiply both sides by 100 so .75/1 would turn into 75/100. Then all you have to do is simplify the fraction.

5 0
3 years ago
Knitting: You are knitting a blanket. You want the area of the blanket to be 24ft^2. You want the length of the blanket to be 2
andriy [413]
You can use factors to solve.  Determine all the factor pairs of 24, find the two that are two numbers apart.
1, 24 X
2, 12 X
3, 8 X
4, 6 YES!


Algebraic way to solve using Quadratics:
l = 2 + w

A = lw

A = (2 + w)w  Substitute (2 + w) for l

24 = (2 + w)w  Substitute 24 in for the area

24 = 2w + w^2  Distribute

w^2 + 2w - 24 = 0  Set equal to 0 (put in standard form)

(w + 6) (w - 4) = 0  Factor

w + 6 = 0  and w - 4 = 0    Set each factor equal to 0.

So w= -6 or w = 4 ... -6 makes no sense for a length!  So the width must be 4 and the length will be 4 + 2, which is 6.

5 0
3 years ago
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