3 years ago

Solve the system of linear equations. separate the x- and y- values with a coma. -9x+2y=-7

Mathematics

1 answer:

Iteru [2.4K]3 years ago

5 0

Y = 1, x = 1 hope this helps!

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If an integer n has three unique prime divisors, then it follows that the largest prime divisor of n is less than or equal to cu

TiliK225 [7]

Answer:

False

Step-by-step explanation:

Lets call the three prime divisors of n p, q, and r, being r the largest, we know:

$n=q * p * r$

Now, if

$q * p < r$

then

$n < r * r = r^2$

So:

$\sqrt{n} < \sqrt{r^2} = r$

Also, for every natural greater than one, we know:

$\sqrt[3]{n}$

from which:

$\sqrt[3]{n} < r$

So, we see, this means the preposition is false, we can find a particular counterexample:

q=2

p=3

p*q = 6

We need to choose a prime greater than 6

r=7

n= 2 * 3 *7 = 42

$\sqrt[3]{42} = 3.4760 < 7$

4 0

3 years ago

The meal cost$ 54.65 and they want to leave they waiter a 20% how much should the tip be

SSSSS [86.1K]

Answer:

10.93

Step-by-step explanation

54.65 x 0.20 = 10.93

4 0

3 years ago

Should this answer be a fraction or a whole number?

lana [24]

It should be a whole number.

6 0

3 years ago

(20+80 divided by 2x8) divided [(54 divided by 9+14)divided by 4]

lesya692 [45]

Answer:

Step-by-step explanation:

Let's write out the equation:

8(20+80/2)/[(54/9+14)/4]

For the first part we get 8(100/2)

Then 50x8

Then 400

For the second part we have (6+14)/4 as we divide 54 by 9. PEMDAS

Then 20/4

Then 5

So our final answer is 400/5 which is 80.

Hope this helps!

7 0

3 years ago

PLEASE HELP ME!!!! THIS IS TIMED PLEASE HELP ME!!!! PLEASE!!!! PLEASE HELP ME!

guapka [62]

Answer:

18/28

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers