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ASHA 777 [7]
2 years ago
11

Someone help me with this still im stock on it plz

Mathematics
1 answer:
pav-90 [236]2 years ago
5 0

Answer:

a>4 or a < 8

Step-by-step explanation:

We can start with the inequality on the left

-a + 2(4+3a) > 28

expand using the distributive property

-a + 8 + 6a > 28

5a + 8 > 28

subtract 8 from both sides to isolate the variable and its coefficient

5a > 20

divide both sides by 5 to isolate a

a > 4

moving on to the inequality on the right

2a - (3a+4) > -12

treat the minus sign as a -1

2a + (-1)(3a+4) > - 12

expand

2a - 3a - 4 > - 12

-a - 4 > -12

add 4 to both sides to isolate a and its coefficient

-a > - 8

multiply both sides by -1 but change the sign because we are multiplying by a negative number

a < 8

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Answer:

Step-by-step explanation:

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3 years ago
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Answer:

The correct option is:

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Step-by-step explanation:

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It is a quadratic formula in standard form:

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where a = 4 , b = -8 and c=20

The vertex form is:

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