Ask question

Ask question

All categories

3 years ago

12

Solve the equation for y (y-3)^2=4y-12

1 answer:

Ket [755]3 years ago

8 0

(y -3)^2 = 4y - 12

Expand.

(y-3)(y -3) = 4y - 12

y² - 6y + 9 = 4y - 12

y² - 6y -4y + 9 + 12 = 0

y² - 10y + 21 = 0

Factors are -7y and - 3y

y² - 10y + 21 = 0

y² - 3y - 7y + 21 = 0

y(y - 3) -7(y - 3) = 0

(y - 3)(y - 7) = 0

y-3 = 0 or y - 7 = 0

y = 0 + 3 or y = 0 + 7

y = 3 or 7

You might be interested in

Help asappppp!!!!!!right now !

noname [10]

Answer:

C

Step-by-step explanation:

tanx=17/100

so do the inverse so it would be tan^-1 (17/100)= degrees

3 0

3 years ago

Read 2 more answers

Diana is painting statues.She has 7/8 of a gallon remaining.Each statue requires 1/16 of a gallon of paint. How many statues can

Irina-Kira [14]

The answer for the problem is 7/2

3 0

3 years ago

Find the greatest number that will divide 63, 45 and 69 so as to leave the same remainder.

jeka57 [31]

Answer:

6

Step-by-step explanation:

Let n be unknown divisor and a be the same remainder, then

$63=q_1\cdot n+a\\ \\45=q_2\cdot n+a\\ \\69=q_3\cdot n+a$

Subtract a from all equalities:

$63-a=q_1\cdot n\\ \\45-a=q_2\cdot n\\ \\69-a=q_3\cdot n$

Subtract them:

$63-45=(q_1-q_2)n\Rightarrow 18=(q_1-q_2)n\\ \\69-63=(q_3-q_1)n\Rightarrow 6=(q_3-q_1)n\\ \\69-45=(q_3-q_2)n\Rightarrow 24=(q_3-q_2)n$

The greatest number is 6. When you divide numbers 63, 45, 69 by 6, you'll get remainders 3, 3, 3, respectively.

7 0

3 years ago

Solve for p 2(p + 1) = 24

Makovka662 [10]

Answer:

p=11

Step-by-step explanation:

2(p + 1) = 24

Divide each side by 2

2/2(p + 1) = 24/2

p+1 = 12

Subtract 1 from each side

p+1-1 = 12-1

p =11

4 0

3 years ago

2/3x + 1/6 = -3x + 4

Brums [2.3K]

Your answer is going to be 23/22

6 0

3 years ago