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Pachacha [2.7K]
2 years ago
11

Solve for m. m + 7 ≥ 20 A. m ≥ 27 B. m ≥ 13 C. 13 ≥ m D. 27 ≥ m

Mathematics
2 answers:
diamong [38]2 years ago
7 0
The answer would be C
iren2701 [21]2 years ago
6 0

Answer:

B. m ≥ 13

Step-by-step explanation:

Given

m + 7 ≥ 20

Subtracting 7 from both sides we get

m + 7 - 7 ≥ 20 - 7

m ≥ 13

Hope it will help:)❤

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There are $5$ girls and $5$ boys in a chess club. The club holds a round-robin tournament in which every player plays against ev
Nadusha1986 [10]
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Total of 45 games in the whole tournament.

Meanwhile, if there would be boy-versus-boy, we will have _{5}C_{2}
The answer is 10. 

The fraction for boy-versus-boy game will be 10/45 or 2/9 when simplified.
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Which of the following equations will create a line that passes through points (4,9) and (-1, -1)? ​
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3 0
3 years ago
Read 2 more answers
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NISA [10]

For this case we must find the solution of the following quadratic equation:

x ^ 2 + 5x + 7 = 0

Where:

a = 1\\b = 5\\c = 7

Then, the solution is given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Substituting the values:

x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}

By definition we have:i ^ 2 = -1

x = \frac {-5 \pm \sqrt {3i ^ 2}} {2}\\x = \frac {-5 \pm i \sqrt {3}} {2}

Thus, we have two complex roots.

Answer:

The equation has no real roots.

4 0
3 years ago
Evaluate f(x) = sqrt(5x + 4) for x = 12
Nezavi [6.7K]

Answer is 8

Work Shown:

f(x) = sqrt(5*x + 4)

f(12) = sqrt(5*12 + 4) ... replace every x with 12

f(12) = sqrt(60 + 4)

f(12) = sqrt( 64 )

f(12) = 8

8 0
3 years ago
Plz help I’m bad at math
Advocard [28]

Answer:

1 is 136, 2 is 44, annd 4 is 44

Step-by-step explanation:

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