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3 years ago

How do you factor x squared -4x+4

Mathematics

1 answer:

telo118 [61]3 years ago

6 0

X^2-4x+4
(x-2)(x-2) or (x-2)^2

Check:
-2-2=-4
-2*-2=4

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What is the solution to 9x−6<21?

Alisiya [41]

Answer:

$x > 3$

Step-by-step explanation:

1) Add 6 to both sides.

$9x > 21 + 6$

2) Simplify 21 + 6 to 27.

$9x > 27$

3) Divide both sides by 9.

$x > \frac{27}{9}$

4) Simplify 27/9 to 3.

$x > 3$

Therefor, the answer is option B. x > 3.

7 0

3 years ago

If a change dispenser contains 32 coins consisting of

swat32

<h3>Answer: 19 dimes</h3>

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

Work Shown:

d = number of dimes

q = 32-d = number of quarters

$5.15 = 515 cents

10d+25q = 515

10d+25(32-d) = 515

10d+800-25d = 515

-15d+800 = 515

-15d = 515-800

-15d = -285

d = -285/(-15)

d = 19

There are 19 dimes. You can stop here if you want.

q = 32-d = 32-19 = 13

There are 13 quarters

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

Check:

1 dime = 10 cents

19 dimes = 19*10 = 190 cents

1 quarter = 25 cents

13 quarters = 13*25 = 325 cents

total value = 190 cents + 325 cents = 515 cents = $5.15

The answer is confirmed.

6 0

3 years ago

What is the missing numbers for ( ) -271 -------- 319

uysha [10]

48 is the answer because when it’s a negative number it subtracts

4 0

4 years ago

Number on the Cube Number of Times Rolled

Natasha2012 [34]

Total number of times cube was rolled = 100.
Total number of times a 6 was rolled = 27.
Probability of rolling a 6 = $\frac{27}{100}$
Total number of times coin was tossed = 100.
Total number of times a head was tossed = 41.
Probability of tossing a head = $\frac{41}{100}$
Therefore, probability of rolling a 6 and tossing a head = $\frac{27}{100}\times\frac{41}{100}=\frac{1107}{10000}$

6 0

3 years ago

Find the 14th term of the following geometric sequence. 4, 8, 16, 32, ...

xz_007 [3.2K]

Answer:

65536

Step-by-step explanation:

multiply each term by 2 until you get to the 14th term. the 14th term is 65536

4 0

4 years ago

Read 2 more answers