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kolbaska11 [484]
3 years ago
6

Solve the inequality x^2-4x-7<0

Mathematics
1 answer:
ANEK [815]3 years ago
8 0

Answer:

Inequality Form:

2 − √ 11 < x < 2 + √ 11

Interval Notation:

( 2 − √ 11 , 2 + √ 11 )

Step-by-step explanation:

Solve the inequality for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

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Need help asap!!!!!!​
Mrac [35]

Answer: x=4

Step-by-step explanation: first you should write it out like it is telling you. put a line and EG is the line and f is in the middle of the two looks kinda like this  E         F          G but they are on a line EG= 25 that means the whole thing equals 25. EF= 2x-6 and FG= 4x+7. when you plug that in it should look like this 25=2x-6+4x+7 then solve.

3 0
3 years ago
Helpppp please thanksssss .
Elza [17]

Answer:

I think the answer is B

Step-by-step explanation:

3 0
3 years ago
X^2- 11 = 70 I need help on how to solve this
brilliants [131]

Answer: Add 11 to the other side of the equation, giving you 81. Then, since x is square you are going to need to square root both sides (\sqrt{x} this symbol). When you do that, you should get what x is! Let me know if you still need help!

6 0
3 years ago
Read 2 more answers
Two fifths of one less than a number is less than three fifths of one more than that number .what numbers are in the solution se
Lelechka [254]

2/5(x - 1) < 3/5(1 + x)

To find the solution, we can use the distributive property to simplify.

2/5x - 2/5 < 3/5 + 3/5x

Multiply all terms by 5.

2x - 2 < 3 + 3x

Subtract 2x from both sides.

-2 < 3 + x

Subtract 3 from both sides.

-5 < x

<h3><u>The value of x is greater than the value of -5.</u></h3>
5 0
3 years ago
What is the value of x in the equation 3x-5=1/2x+2x
Drupady [299]

Answer:

exact form: x= 11/2

Decimal Form

X= 5.5

Mixed form

X= 5 1/2

Step-by-step explanation:

8 0
3 years ago
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