Let m= 76,1d8,071. for what value(s of the digit d is m divisible by 3 but not 9?

1 answer:

4 0

3 or null, dude. im pretty sure. anything that can be divided by 9, can also be divided by 3. For ex.) 27/9 = 3 and 27/3 = 9.
you can't just throw a negative in the middle of a big number, that wouldn't make sense. so the answer is 3... pretty sure.
(sorry if it's wrong it's 3AM, im tired, but im trying my best to answer questions rn)

You might be interested in

The equation of the graphed line is x + 2y = 5. What is the x-intercept

Nata [24]

The x intercept is -2y + 5

hope this helps

3 0

3 years ago

Simplify the rational expression. state any restrictions on the variable. n^4-11n^2+30/n^4-7n^2+10

Andrej [43]

For this case we have the following expression:
 $\frac{n ^ 4-11n ^ 2 + 30}{ n ^ 4-7n ^ 2 + 10} 

$
 We are going to make the following change of variables:
 $x = n ^ 2
$
Rewriting the expression we have:
 $\frac{(x ^ 2-11x + 30)}{(x ^ 2-7x + 10)} 

$
Factoring the expression we have:
 $\frac{(x-5) (x-6)}{(x-5) (x-6)} 
$
Canceling similar terms we have:
 $\frac{x-6}{x-2} 
$
Returning the change we have:
 $\frac{n ^ 2-6}{n ^ 2-2} 

$
 The resctrictions of the function are those that make the denominator equal to zero.
We have then:
 $n ^ 2-2 = 0

n = +/- \sqrt{2} 
$
 Answer:
The simplified expression is:
 $\frac{n ^ 2-6}{n ^ 2-2}$
The restrictions are:
 $n = \sqrt{2} 
$
$n = - \sqrt{2}$

7 0

3 years ago

In a chemical compound there are three parts zinc for every 16 parts copper by mass. A piece of the compound contains 320 g of c

Orlov [11]

Total mass contains 320g copper. How many parts of 16g copper are there of the total mass of 320g copper? 320/16 = 20. There are 20 portions of 16g copper. (320/16) * 3 = 60g There are 60g of zinc in the compound.

6 0

3 years ago

Find the equation of the line

GenaCL600 [577]

Y=2/3x+4
Hope this helps

7 0

3 years ago

What is 2 15/16 Ian’s a decimal?

Arada [10]

Answer:

2.9375

Step-by-step explanation:

15 divided by 16 equals .9375 so 2 15/16 is 2.9375

5 0

2 years ago