All categories

3 years ago

Factor: m^2 - 20m - 21

Mathematics

1 answer:

Anton [14]3 years ago

4 0

Answer: (m-21)(m+1)

Step-by-step explanation:

To factor this trinomial, find two numbers that multiply to -21 and add to -20:

(-21)(1)=-21

-21+1=-20

They are -21 and 1.

Add -21 and 1 to m to get both factors:

(m+(-21)) and (m+1)

(m-21) and (m+1)

Multiply them to get the answer:

(m-21)(m+1)

You might be interested in

Brainliest

Oduvanchick [21]

Answer:

Advantages of quantum mechanics include explaining phenomena found in nature as well as developing technologies that rely upon quantum effects, like lasers.

Step-by-step explanation:

Have a AWESOME day
-NaomiTheGenuis

7 0

2 years ago

5lbs of apples at 2 lbs for $.80

igomit [66]

$2.00 is the answer...

3 0

3 years ago

The probability that a biased dice will land on a six is 0.4. Marie is going to throw the dice 400 times. Work out an estimate f

steposvetlana [31]

I’m pretty sure it’s 16...?

4 0

3 years ago

Charlie Carr has a sheet of brass that is 33 inches wide and cuts two pieces that are each 8

denis-greek [22]

Answer: The width of the leftover brass is 17 inches.

Step-by-step explanation:

Hi, to answer this question, first, we have to add the width of the pieces cut.

Mathematically speaking:

8 in +8 in = 16 in

Now, we have to subtract that result to the width of the sheet of brass.

33 in -16 in = 17 in

The width of the leftover brass is 17 inches.

Feel free to ask for more if needed or if you did not understand something.

5 0

3 years ago

Points A and B are on the different sides of a line 1, the distance between point A and the line lis 10 in, the distance between

givi [52]

Answer: Distance between O and the line 1 is 3 inches.

Explanation:

Since we have given that

Distance between point A and the line 1 = 10 inches

Distance between point B and the line 1 = 4 inches

Total length of segment AB is given by

$10+4=14\ inches$

Since O is midpoint of the line segment AB.

so, AO is given by

$\frac{14}{2}=7\ in.$

Now, Distance between O and the line 1 is given by

$10-7=3\ in.$

Hence, Distance between O and the line 1 is 3 inches.

7 0

3 years ago