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baherus [9]
3 years ago
13

Andre tried to solve the equation 1/4(x+12)=2 what was his mistake?

Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0

Step-by-step explanation:

1. 1/4(x + 12)=2 - first isolate X'

         - 12 -12

2. 1/4(x) = -10  - 1/4  since its a fraction, you'll have to subtract not divide

-1/4    - 1/4

3. x = -10.25

Andre did the first step correctly, but on the second step he just divided 1.4 by -10, instead of subtract 1/4 from both sides.

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F(x)=x^2-8x+12 in vertex form
Zina [86]

Answer:

vertex form f(x) =  (x - 4)^2  - 4

Step-by-step explanation:

f(x)=x^2-8x+12 in vertex form

look at   -8x

take -8  divide it by 2  and square result   get   16

f(x) = x^2   - 8x  + 16  -  16  + 12

f(x) =  (x - 4)^2  - 16  + 12

f(x) =  (x - 4)^2  - 4

vertex form f(x) =  (x - 4)^2  - 4

6 0
4 years ago
Which of the following equations has no solution?
soldier1979 [14.2K]

Answer:

B. 3x+5−4x=−(x+8)

Step-by-step explanation:pls mark me

3 0
3 years ago
Read 2 more answers
Sum and simplify 7/8+3/8
n200080 [17]
7/8+3/8=10/8
10/8=5/4
The answer as an improper fraction is 5/4 and 1 and 1/4 as a mixed fraction.

Hope I didn't mess up for your sake.

5 0
4 years ago
Read 2 more answers
Please help, will give brainliest answer
babymother [125]
1. AB/EF = P(ABCD)/P(EFGH)
4/5=16/P(EFGH)
P(EFGH)=5*16/4=5*4=20

2. V(old)=lwh =
V(new)=2*l*2*w*2*h =2³(lwh)=2³*V(old)= 8*3600=28800

3.
A(old)=ab
A(new)=5a*5b=25ab=25A(old)
new area will be 25 times larger

4 0
3 years ago
A number cube is rolled. What is the probability that a number greater than 4 will be rolled?
jek_recluse [69]

Answer:

1/6

Step-by-step explanation:

because there are 6 sides to a cube and the 4 is one of them so 1/6. doggo smorts

7 0
2 years ago
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