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AleksAgata [21]
2 years ago
11

The sum of two different prime numbers is always prime counterexample

Mathematics
2 answers:
Fed [463]2 years ago
6 0

Answer:

Step-by-step explanation:

Two prime numbers are 3 and 5.

3 + 5 = 8

And we clearly know 8 is not a prime number.

11111nata11111 [884]2 years ago
4 0

Answer:

1+7 equals 8, which is not a prime number

Step-by-step explanation:

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4x + 2y = -12 3x + y = -10 please help system by substitution.
padilas [110]

Answer:

(-4, 2)

Step-by-step explanation:

4x+2y=-12

3x+y=-10

Start by dividing the first equation by 2 to simplify it...

2x+y=-6

Then, subtract -2x from both sides to isolate y...

y=-2x-6

Substitute -2x-6 for y in the second equation...

3x-2x-6=-10

Combine like terms...

x-6=-10

Add 6 to both sides

x-6+6=-10+6

x=-4

Plug -4 in for x to solve for y:

3(-4)+y=-10

-12+y=-10

Add 12 to both sides

-12+12+y=-10+12

y=2

(x,y)=(-4,2)

3 0
2 years ago
Shawn incorrectly graphed the inequality -x-2y≥8 as shown below Explain shawn mistake ​rotate phone if u need to
Aleks04 [339]

Answer:

He failed to flip the inequality

y ≤-1/2x-4

Step-by-step explanation:

-x-2y ≥8

Add x to each side

-x+x-2y ≥x+8

-2y ≥x+8

Divide by -2.  Remember to flip the inequality

-2y/-2 ≤-1/2 x +8/-2

y ≤-1/2x-4

Shawn shaded the wrong side of the line.

Y is less than or equal to .  He failed to flip the inequality

3 0
3 years ago
the pool at the apartment is 30 feet long 20 feet wide and five feet deep it has been filled to 4 feet how many more cubic inche
pickupchik [31]

Answer:

600 cubic feet

Step-by-step explanation:

6 0
3 years ago
The length of the shadow of a building is 100 meters
podryga [215]
Check the picture below.

make sure your calculator is in Degree mode.

6 0
3 years ago
Read 2 more answers
If the length of a rectangle is 5y-7 and the width is 3y,represent the area of the rectangle
elena-14-01-66 [18.8K]

Answer:

15y^2 - 21y

Step-by-step explanation:

A = LW

A = (5y - 7)(3y)

A = 15y^2 - 21y

8 0
3 years ago
Read 2 more answers
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