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IRINA_888 [86]
3 years ago
9

AD and MN are chords that intersect at point B.

Mathematics
2 answers:
vampirchik [111]3 years ago
8 0

Answer:

4 units

Step-by-step explanation:

Vesna [10]3 years ago
6 0

Answer:A. 4 Unita

Step-by-step explanation:

I just took the test

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Robert wants to average a 92% in math class his first three marking periods scores are 89%,95%, and 90% what does he need to get
Salsk061 [2.6K]
He will make 92 dollars an hour if he starts
7 0
3 years ago
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the food stand at the zoo sold 2,514 pounds of hamburger last month. how many hamburgers will the food stand sell in 6 months?
oksian1 [2.3K]
15084 pounds so ya all u do is take 2,514 x 6
6 0
3 years ago
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Use the quadratic formula to solve x^2+8x+9=0
Tju [1.3M]
None of your options, not via complete the square nor quadratic the formula.

Solve for x over the real numbers:
x^2 + 8 x + 9 = 0

x = (-8 ± sqrt(8^2 - 4×9))/2 = (-8 ± sqrt(64 - 36))/2 = (-8 ± sqrt(28))/2:
x = (-8 + sqrt(28))/2 or x = (-8 - sqrt(28))/2

sqrt(28) = sqrt(4×7) = sqrt(2^2×7) = 2sqrt(7):
x = (2 sqrt(7) - 8)/2 or x = (-2 sqrt(7) - 8)/2

Factor 2 from -8 + 2 sqrt(7) giving 2 (sqrt(7) - 4):
x = 1/22 (sqrt(7) - 4) or x = (-2 sqrt(7) - 8)/2

(2 (sqrt(7) - 4))/2 = sqrt(7) - 4:
x = sqrt(7) - 4 or x = (-2 sqrt(7) - 8)/2

Factor 2 from -8 - 2 sqrt(7) giving 2 (-sqrt(7) - 4):
x = sqrt(7) - 4 or x = 1/22 (-sqrt(7) - 4)

(2 (-sqrt(7) - 4))/2 = -sqrt(7) - 4:

Answer: x = sqrt(7) - 4 or x = -sqrt(7) - 4_____________________________________________________

Solve for x:
x^2 + 8 x + 9 = 0

Subtract 9 from both sides:
x^2 + 8 x = -9

Add 16 to both sides:
x^2 + 8 x + 16 = 7

Write the left hand side as a square:
(x + 4)^2 = 7

Take the square root of both sides:
x + 4 = sqrt(7) or x + 4 = -sqrt(7)

Subtract 4 from both sides:
x = sqrt(7) - 4 or x + 4 = -sqrt(7)

Subtract 4 from both sides:
Answer:  x = sqrt(7) - 4 or x = -4 - sqrt(7)
4 0
3 years ago
For which equation would x = 5 be a solution?
mars1129 [50]

Answer:

45 ÷ x = 9   ...   45 ÷ 5 = 9

Step-by-step explanation:

5 + 4 ≠ 54

45 ÷ 5 = 9

5 - 7 ≠ 12

8 * 5 ≠ 85

8 0
3 years ago
The Perimeter of a rectangle is 36. If there's 5n + 3 and 1/4n + 2, what's the value of n?
seropon [69]
Perimeter: 36

5n + 3 = 36
5 · 6.6 + 3 = 36

N = 6.6
------------------------------------------
Perimeter: 36

1/4n + 2 = 36
1/4 · 136 + 2 = 36

N = 136

Hopefully i understood the question correctly :) Hope this helps
5 0
2 years ago
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