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aleksandrvk [35]
3 years ago
15

What is thesum of the two polynomials ? (-x^2+9)+(-3x^2-11x+4)

Mathematics
1 answer:
True [87]3 years ago
3 0
-x^2 + 9 - 3x^2 - 11x + 4
-4x^2 - 11x + 13
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Need to be able to check this assignment for my son and I have no clue how to make sure it's correct anyone?
saw5 [17]

Answer:

it is correct

Step-by-step explanation:

4 0
3 years ago
A jar contains 30 red, 30 blue, and 60
kiruha [24]

The probability of picking red button is \frac{1}{4}

<u>Solution:</u>

Given, A jar contains 30 red, 30 blue, and 60 white buttons.  

You pick one button at a random choice,  

We have to find the probability that it is red button.

Now, total number of buttons = 30 + 30 + 60 = 120 buttons.

Number of favourable cases for red button = 30 red buttons.

The probability of an event is given as:

\text { probability of a event }=\frac{\text { favourable ways to pick red }}{\text { total possiblities }}

=\frac{30}{120}=\frac{1}{4}

Thus the probability that it is red is \frac{1}{4}

3 0
3 years ago
Help me with 16,18 and 20
Mandarinka [93]
16: -7(5)= -35 ( REMEMBER THE MOUTH EATS THE BIGGEST NUMBER!)
     -6(-6)= 36   therefore 36 is greater than -35
18: they are exactly the same because in multiplication with inters it matters when the signs change. so 3(-6) = -18 ad -3(6)= -18 then -18=-18
20: Same as 18 where division has the same rules. if 8x5=40 then 40/8=5
-40/8=-5 and 40/(-8)=-5 then -5=-5
answers: 
8 0
3 years ago
Read 2 more answers
Fruit Slice Flavor Small Bag Medium Bag Large Bag Orange 20 40 60 Grape 10 20 30 Cherry 5 10 15 Total Slices 35 70 105 Best Ever
Maksim231197 [3]
It depends on how much its the total

7 0
3 years ago
Read 2 more answers
Find the length of side x I simplest radical form​
alekssr [168]

Answer:

Option A

Step-by-step explanation:

By applying Pythagoras theorem in ΔABC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

AC² = AB² + BC²

AC² = 6² + 5²

AC = \sqrt{61}

Similarly, by applying Pythagoras theorem in ΔACD,

AD² = AC² + CD²

(10)² = (\sqrt{61})^2 + x²

x² = 100- 61

x² = 39

x = √(39)

Option A will be the answer.

7 0
2 years ago
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