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2 years ago

Can every even number be written as a sum of two primes?

1 answer:

5 0

The Goldbach Conjecture is a yet unproven conjecture stating that every even integer greater than two is thesum of two prime numbers. The conjecture has been tested up to 400,000,000,000,000. Goldbach's conjecture is one of the oldest unsolved problems in number theory and in all of mathematics.

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What’s the answer to this picture/question please give me a simple answer

MakcuM [25]

Answer:

$\sqrt{105}$

Step-by-step explanation:

$\sqrt{3} \times \sqrt{5} \times \sqrt{7} = \sqrt{3 \times 5 \times 7} = \sqrt{105}$

5 0

3 years ago

Read 2 more answers

3/5 is no less than a number a.

Fittoniya [83]

Step-by-step explanation:

What's A?

6 0

2 years ago

Brianna plotted the two points (20, 75) and (45, 150) on a graph. What is the x-coordinate of the x-intercept of the line that c

Alecsey [184]

Here his a link to how you solve this , please do not use it to cheat but to learn from it

http://ecsd-fl.schoolloop.com/file/1298972684338/1298972684200/3666926465936506857.pdf

Hope this helps !

5 0

2 years ago

Ana Participated in each charity walk she raise $.25 and each 1/2 That she walked the first day and I walked 11 miles a second d

Tresset [83]

Question:

Ana participated in a charity walk. She raised $0.25 for each 1/2 mile that she walked.The first day Ana walked 11 miles.The second day, she walked 14 miles.How much money did Ana raised?

Answer:

Ana raised $ 12.5

Solution:

From given question,

First day walk = 11 miles

Second day walk = 14 miles

Let us first calculate the total distance she walked

Total distance = first day walk + second day walk

Total distance = 11 + 14 = 25 miles

Thus she walked for 25 miles

Given that,

She raised $0.25 for each 1/2 mile that she walked

$\frac{1}{2} \text{ mile} = 0.25 \text{ dollars }$

Therefore, for 1 mile we get,

$\frac{1}{2} \times 2 \text{ mile} = 0.25 \times 2 \text{ dollars }\\\\1 \text{ mile } = 0.5 \text{ dollars }$

Now calculate for 25 miles

$25 \text{ mile } = 25 \times 0.5 = 12.5 \text{ dollars }$

Thus she raised $ 12.5

4 0

3 years ago

Find the derivative of f(x) = -9/x at x = 6

Svet_ta [14]

F(x)=-9/x which is equal to:

f(x)=-9x^(-1) So the power rule for differentiation is used...

Power rule: f(x)=x^e, df/dx=ex^(e-1) so:

df/dx=-9(-1)x^(-1-1)

df/dx=9x^(-2) or if you prefer...

df/dx=9/x^2

df/dx(6)=9/36=1/4

3 0

3 years ago