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2 years ago

(name the intersection of the figure) pls help if ur good at geometry

Mathematics

1 answer:

Ipatiy [6.2K]2 years ago

6 0

Answer:

im ok, i can help

Step-by-step explanation:

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F(b) = 7b^3 +8b and g(b) = b ^2+ b - 10. What is f(b)-g(b)?

Elden [556K]

Answer:

${ \bf{f(b) - g(b) : }} \\ { \tt{ = ( {7b}^{3} + 8b) - ( {b}^{2} + b - 10)}} \\ = ( {7b}^{3} - {b}^{2} + 7b + 10)$

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3 years ago

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Let n be a natural number. Show that 3 | n3 −n

Vladimir [108]

Let $n=1$ . Then $n^3-n=1^3-1=0$ . By convention, every non-zero integer $n$ divides 0, so $3\vert n^3-n$ .

Suppose this relation holds for $n=k$ , i.e. $3\vert k^3-k$ . We then hope to show it must also hold for $n=k+1$ .

You have

$(k+1)^3-(k+1)=(k^3+3k^2+3k+1)-(k+1)=(k^3-k)+3(k^2+k)$

We assumed that $3\vert k^3-k$ , and it's clear that $3\vert 3(k^2+k)$ because $3(k^2+k)$ is a multiple of 3. This means the remainder upon divides $(k+1)^3-(k+1)$ must be 0, and therefore the relation holds for $n=k+1$ . This proves the statement.

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2 years ago

8 + (-10) just confused lol

grin007 [14]

8+(-10) is like 10-8 except backwards so how i do some problems is like that and then add a negative sign; so say if i were doing 8+(-10), i would do 10-8 which equals 2 and then since 10 is bigger than 8 and it’s a negative number, i would put -2 as my answer

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3 years ago

You walk east 720 feet to get from your house to class. After class, you walk southwest 1,044 feet to meet your friends for lunc

strojnjashka [21]

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3 years ago

PLS HELP ASAP!!!!!<br> (Classify △LMN. Choose 2 answers).

ArbitrLikvidat [17]

Ans : A and F

Step-by-step explanation:

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2 years ago

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