3 years ago

The map shows ancient and modern cities on the Indian subcontinent.

Mathematics

2 answers:

loris [4]3 years ago

4 0

Answer:

D. Ancient cities developed mainly along the Indus River, while modern cities developed near different bodies of water.

Step-by-step explanation:

natulia [17]3 years ago

3 0

C is your best friend for this question

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If a number n has exactly 7 divisors, how many divisors does n squared have?

Anna [14]

A number $n=p_1^{a_1}\cdot p_2^{a_2}\cdot\ldots\cdot p_k^{a_k}$ , where $p_k$ are distinct prime numbers, has $(a_1+1)(a_2+1)\cdot\ldots\cdot(a_k+1)$ divisors.

We know that $n$ has 7 divisors. 7 is a prime number, so among the numbers $a_1+1,a_2+1,\ldots,a_k+1$ there is only one that is equal to 7.

So,
$a_k+1=7\\
a_k=6$

That means $n=p^6$ where $p$ is a prime number.
$n^2=(p^6)^2=p^{12}$ , therefore the $n^2$ has $12+1=13$ divisors.

4 0

3 years ago

Helppppp me nooooooooooooooooooooooooooooooooooooo

laila [671]

Answer:

<u><em>I want brainliest</em></u>

Step-by-step explanation:

7.6 x 8 = 60.8

so the answer is either b or c

7.6 per hour

7.6h

makes the answer b