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Ede4ka [16]
3 years ago
13

Which of these numbers is a prime number 1,11,21,51

Mathematics
1 answer:
Vlad [161]3 years ago
3 0
Im pretty sure its 11
You might be interested in
CD if c = 6 & d = 11
deff fn [24]

Answer:

66

Step-by-step explanation:

CD means to multiply C&D which means that you are multiplying 6*11

`11*6=66

5 0
1 year ago
1/2 times a for a = 3/10
dedylja [7]
Since you are multiplying a fraction with another, all you have to do is cross multiply. First, set it up:
1    3
_    _                    
2   10
Multiply straight across and that would equal 3/20. Since it cannot be simplified, 3/20 is the final answer. Hope this helped. Cheers, mimiisawesome5
3 0
3 years ago
Read 2 more answers
| 3x | = 9 <br> | -3r | = 9 <br> b/5 = 1
Ierofanga [76]
|3x| = 9
|3x| = ±9
|3x| = 9    U    |3x| = -9
  3x = 9     U     3x = -9
   3     3              3      3
    x = 3               x = -3

|-3r| = 9
|-3r| = ±9
|-3r| = 9    U    |-3r| = -9
   3r = 9      U     3r = -9
    3    3               3     3
    r = 3                 r = -3

     ¹/₅b = 1
5(¹/₅b) = 5(1)
       b = 5
8 0
3 years ago
a student achieved the following grades on his tests :87,95 ,76 and 88 percent . he wants 85 percent or better overall . what gr
m_a_m_a [10]

Answer:

Step-by-step explanation:

87+95+76+88+x/5=85

346+x=85x5

x=425-346

x=79

4 0
3 years ago
Read 2 more answers
What are acceptable ways to represent the statement "x is a distance of five from 0." Choose ALL that apply.
Ahat [919]
Hello! You should select a, b, and c.
Think of it like on a number line, x could be 5, or -5 and still be the same distance from 0. Absolute vales are the same way, so if the answer is 5 or -5, its right! It cant be the last one because x, must only be 5 or -5. Hope that helps!
5 0
3 years ago
Read 2 more answers
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