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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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Write the direct variation function given that y varies directly with x, and y = 1.5 when x = 5.
Cloud [144]

Answer:

y=0.3x

Step-by-step explanation:

Formula = K=\frac{y}{x}

y α x

y = kx

Where k is the constant of proportionality.

When y = 1.5; x = 5;

We substitute these known values in the equation,

y = kx

1.5 = k5

Dividing both sides of the equation by 5 to find the value for k, we have

1.5/5= k0.3/5

Therefore,

K = 0.3

Having found the value of k,

We substitute this value into the relationship

y = kx

Therefore we have,

y = 0.3x.

The direct variation function is therefore,

y = 0.3x.

[RevyBreeze]

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2 years ago
Find the area of a rectangle that has a length of 5x+1 and a width of 2x+3
pantera1 [17]
I could be wrong, but I'm pretty sure here the answer would be 10x^2 + 17x +3 would be the area since you have to multiply length and width. since these are expressions with no answers and no other numbers, we can't find x.

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3 years ago
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3 years ago
Mary buys a reel of thread for sewing. There are 10 m of thread on the reel. She uses 210 cm. How much is left on the reel in ce
galben [10]
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Find the perimeter of A,B,C. Round nearest 10th
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Step-by-step explanation:

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