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lorasvet [3.4K]
3 years ago
14

I don't understand it​

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0

Answer:

Your answer is: What do you need help with?

Step-by-step explanation:

Hope this helped : )

You might be interested in
20 is 60% of what number
Lilit [14]

Answer:

33.33

Step-by-step explanation:

60% of 33.33 is 20. 100% of 33.33 is 33.33, therefore 60 percent of 33.33 equals 20.

3 0
3 years ago
Read 2 more answers
For which value of b can the expression x2 + bx + 18 be factored?
Dmitry_Shevchenko [17]

Answers:

  • b = -19
  • b = -11
  • b = -9
  • b = 19
  • b = 11
  • b = 9

====================================================

Explanation:

Here are all the ways to multiply to 18 when using integers only:

  • -1*(-18) = 18
  • -2*(-9) = 18
  • -3*(-6) = 18
  • 1*18 = 18
  • 2*9 = 18
  • 3*6 = 18

Sum each pair of factors to find out a possible value of b.

  • -1 + (-18) = -19
  • -2 + (-9) = -11
  • -3 + (-6) = -9
  • 1 + 18 = 19
  • 2 + 9 = 11
  • 3 + 6 = 9

Therefore, the possible values of b are

  • b = -19
  • b = -11
  • b = -9
  • b = 19
  • b = 11
  • b = 9

which are the final answers.

----------------------

An example:

Let's say b = 11. This would mean x^2+bx+18 becomes x^2+11x+18

It would factor to (x+2)(x+9) since it was stated earlier that:

2+9 = 11

2 * 9 = 18

You can use the FOIL rule, distributive property, or the box method to confirm that x^2+11x+18 = (x+2)(x+9) is a true equation for all real numbers x.

This same idea applies for the other values of b.

----------------------

If you're curious why this works, consider multiplying the two factors (x+p) and (x+q)

Use the FOIL rule to get (x+p)(x+q) = x^2+qx+px+pq = x^2+(p+q)x + pq

The middle term (p+q)x has the components add to the coefficient, while those same two components multiply to get the last term. This is why when factoring we're looking for two numbers that multiply to 18, and also add to the value of b (which in the case of the last example was 11).

7 0
2 years ago
Can someone please help me with this math problem thanks
Artemon [7]

Answer:

RATED R FLIMS?

Step-by-step explanation:

thats so bad!?!?>>BNSDGh why would you watch P O R N>!?>!M!NKHEdb

3 0
3 years ago
Read 2 more answers
Lily has 6 dog toys that are red one sixth of all her gig toys are red. How many gig toys does lily have?
Semmy [17]
First, you multiply 6 by 6, since one-sixth of all her dog toys are red.

6×6=36.

Next, we put them in fraction form just to check.

\frac{6}{36}

Next, we simplify it to see if we get one-sixth.

After it's simplified we get   \frac{1}{6}

That means she has 36 dog toys.

Have a nice day! :)


8 0
2 years ago
A $250 Northface jacket is on sale for 20% off. How much is the discount you would take off the jacket?
zubka84 [21]

Answer:

you would take off %20 New total is 200

Step-by-step explanation:

20 percent of 250 is 50

250-50=200

8 0
3 years ago
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