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Gnoma [55]
3 years ago
6

11) Determine if the following numbers are prime, composite or neither. 13

Mathematics
2 answers:
Studentka2010 [4]3 years ago
7 0

Answer:

prime

Step-by-step explanation:

The number 13 has no factors other than one and thirteen, so it is prime. If it had more than two factors, it would be composite. If it were a fraction, decimal, or negative number, it would be neither.

harina [27]3 years ago
6 0

Answer:

13 is Prime

Step-by-step explanation:

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Write as an algebraic expression: Two less than two times a number (y).
Nataly [62]

Answer:

2y-2

Step-by-step explanation:

As it says a number is less than 2 times a number which is given as y.

3 0
3 years ago
What is 12 3/4 - 11 7/8?
Sergeu [11.5K]
11.9 would be the correct answer I believe
3 0
3 years ago
What are the x-coordinates of the solutions to this system of equations? x2 + y2 = 100 y = x + 2
kiruha [24]

Answer:

x = - 8, x = 6

Step-by-step explanation:

Given the 2 equations

x² + y² = 100 → (1)

y = x + 2 → (2)

Substitute y = x + 2 into (1)

x² + (x + 2)² = 100

x² + x² + 4x + 4 = 100

2x² + 4x + 4 = 100 ( subtract 100 from both sides )

2x² + 4x - 96 = 0 ( divide through by 2 )

x² + 2x - 48 = 0 ← in standard form

(x + 8)(x - 6) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 8 = 0 ⇒ x = - 8

x - 6 = 0 ⇒ x = 6

6 0
2 years ago
Can you please help me
trapecia [35]
X = 70 and y = 35, I hope this helps
5 0
3 years ago
Read 2 more answers
Nathan has 102 solid-colored disks that are red.
Alex787 [66]

Answer:

blue = 35

green = 29

red = 38

Step-by-step explanation:

Let r = red

Let g = green

let b = blue

r + g + b = 102

r = b + 3

b = g + 6    Subtract 6 from both sides of the equation

b - 6 = g

===================

substitute for red and green

(b + 3) + b + b - 6 = 102

b + 3 + b + b - 6 = 102

Combine like terms

3b - 3 = 102

Add 3 to both sides

3b - 3 + 3 = 102 + 3

3b = 105

Divide by 3

3b/3 = 105/3

b = 35

======================

r = b + 3

r = 35 + 3

r = 38

=======================

g = b - 6

g = 35 - 6

g = 29

========================

3 0
3 years ago
Read 2 more answers
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