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3 years ago

Can someone translate what this means in geometry?

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

8 0

Answer:

Planes P and Q only intersect along line r. Postulate 2.7, which states that if two planes intersect, then their intersection is a line.

Step-by-step explanation:

Planes P and Q only intersect along line r. Postulate 2.7, which states that if two planes intersect, then their intersection is a line.

Pachacha [2.7K]3 years ago

7 0

"p if, and only if, q" aka it is biconditional because "p only if q" and etc :)

Hope this helps, have a nice day :D

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7 0

3 years ago

If 1st and 4tg terms of G.p are 500 and 32 respectively it's second term is ?

bixtya [17]

Answer:

$T_{2} = 200$

Step-by-step explanation:

Given

Geometry Progression

$T_1 = 500$

$T_4 = 32$

Required

Calculate the second term

First, we need to write out the formula to calculate the nth term of a GP

$T_n = ar^{n-1}$

For first term: Tn = 500 and n = 1

$500 = ar^{1-1}$

$500 = ar^{0}$

$500 = a$

$a = 500$

For fought term: Tn = 32 and n = 4

$32 = ar^{4-1}$

$32 = ar^3$

Substitute 500 for a

$32 = 500 * r^3$

Make r^3 the subject

$r^3 = \frac{32}{500}$

$r^3 = 0.064$

Take cube roots

$\sqrt[3]{r^3} = \sqrt[3]{0.064}$

$r = \sqrt[3]{0.064}$

$r = 0.4$

Using: $T_n = ar^{n-1}$

$n = 2$ $r = 0.4$ and $a = 500$

$T_{2} = 500 * 0.4^{2-1}$

$T_{2} = 500 * 0.4^1$

$T_{2} = 500 * 0.4$

$T_{2} = 200$

<em>Hence, the second term is 200</em>

5 0

3 years ago

Can someone translate what this means in geometry?​

Can someone translate what this means in geometry?