Which number is prime? 36 37 35 38

Mathematics

1 answer:

dybincka [34]3 years ago

5 0

A number is prime if its only divisors are 1 and the number itself.

Out of your numbers, 36 and 38 are even, and thus divisible by 2, so they aren't prime.

Similarly, 35 ends with 5, so it's divisible by 5, and is not prime.

37 is divisible only by 1 and 37, and thus it's prime.

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3 years ago

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Can I have some help finding the area to this? Can someone also explain how to figure this out?? PLEASE

nignag [31]

Let's separate the hexagon into 5 shapes; 2 triangles on each side, and a rectangle in the middle. Now let's find the area of each of the smaller shapes.

Top left triangle:
The equation to find the area of a triangle is
(base = b, height = h, a = area)
a = b · h · $\frac{1}{2}$
Now let's add in our values and solve.
a = 2 · 4 · $\frac{1}{2}$
a = 8 · $\frac{1}{2}$
a = 4

Now since there are 4 of these triangles, and they're all the same size,
4 · 4 = 16
All of the triangles put together = 16cm²

The middle rectangle:
The equation to find the area of a rectangle is simple:
(w = width, l = length, a = area)
a = w · l
Now let's put in our values and solve.
a = 4 · 8
a = 32

The rectangle is 32cm²

Now let's add the areas together.
32 + 16 = 48

The answer is <span>48cm²

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
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4 0

3 years ago

Will give brainliest! please answer correctly!

Serhud [2]

Answer:

C yup I'm sure

Step-by-step explanation:

x=> drawing time y=>computer time

x+y ≤ 45 and x ≥ 25

(and sorry for my disgusting drawing XD)

hope it helps ^-^