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Alex17521 [72]
3 years ago
15

Solving quadratic equations solve: x^2=81

Mathematics
2 answers:
xenn [34]3 years ago
8 0

Answer:9

Step-by-step explanation:

Square root of 81 is9.

fiasKO [112]3 years ago
6 0
Answer: 9
I hope this helps u!
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SSSSS [86.1K]
Answer:13 thank me later

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2 years ago
2 =6.28 3 =9.42 5 =15.70 3=1.40 36= X What is the value of x
aleksandr82 [10.1K]
Answer to your quesrion is 36
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3 years ago
What is the solution of the linear-quadratic system of equations?<br><br> {y=x^2+5x−3<br> {y-x=2
Rina8888 [55]

Answer: the above stated equation is a quadratic equation

Step-by-step explanation:

Given the following equations

y = x^2 + 5x - 3....equation 1

y-x = 2

y = x + 2........equation 2

Let equation 1 equal equation 2

x^2 + 5x -3 = x + 2

Bringing the equation to one side and equating to zero

X^2 +5x - 3 -x -2 = 0

X2 + 5x -x -3 -2 = 0

X^2 + 4x -5

Solving the aquatic equation

(x + 5)(x -1) = 0

X + 5 = 0

X1 = -5

X- 1 = 0

X2 = 1

To prove:

Substitute the values for x1and x2 into the equation x^2 + 4x - 5 = 0

3 0
3 years ago
Need help with all this
Inessa [10]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ To find the mean, add up all the numbers and divide by the amount of numbers there are. To find the range, subtract the highest number by the  lowest number in the data set.

2. Mean = 35  Range = 78

3. Mean = 43  Range = 58

4. Mean = 63  Range = 73

5. Mean = 61   Range = 56

6. Mean = 55  Range = 83

7. Mean = 61   Range = 53

8. Mean = 60  Range = 75

9. Mean = 50  Range = 76

10. Mean = 50  Range = 81

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

7 0
3 years ago
A bag contains 5 red marbles and 4 green marbles. What is the probability of choosing a red marble then a green marble, without
STALIN [3.7K]
It will be 5 out of 9 times you will pull a red marble
5 0
3 years ago
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