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krok68 [10]
2 years ago
11

PLEASEE HELP GIVING OUT BRAINLIEST

Mathematics
1 answer:
Nesterboy [21]2 years ago
8 0

Answer:

0 <u>< </u>x + 7 < 5 = [-7,-2)

Step-by-step explanation:

Move all terms not containing x from the center section of the inequality.

7 <u><</u> x < -2

convert the inequality to interval notation

[-7,-2)

Hope this helps.

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X^2+ 6x - 4 = 3x + 6
jolli1 [7]

Answer:

x=2

x=-5

Step-by-step explanation:

You need to get everything on one side to have a quadratic equation:

x^2+6x-4 -(3x+6) = x^2+3x-10

All factors of 10 are 1*10 and 2*5.

5-2 = 3 and 5*-2 = -10

Factoring x^2+3x-10 gives us (x-2)(x+5)

x=2

x=-5

4 0
3 years ago
Read 2 more answers
Rewrite x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers, to determine the a and b values.
Setler79 [48]

Answer:

Therefore values of a and b are

a=3\ and\ b = 2

Step-by-step explanation:

Rewrite x^{2}-6x+7=0 in the form

(x-a)^{2}=b

where a and b are integers,

To Find:

a = ?

b = ?

Solution:

x^{2}-6x+7=0 ..............Given

Which can be written as

x^{2}-6x=-7

(\frac{1}{2} coefficient\ of\ x)^{2}=(\frac{1}{2}\times -6)^{2}=9

Adding half coefficient of X square on both the side we get

x^{2}-6x+9=-7+9=2 ...................( 1 )

By identity we have (A - B)² =A² - 2AB + B²

Therefore,

x^{2}-6x+9=x^{2}-2\times 3\times x+3^{2}=(x-3)^{2}

Substituting in equation 1 we get

(x-3)^{2}=2

Which is in the form of

(x-a)^{2}=b

On comparing we get

a = 3 and b = 2

Therefore values of a and b are

a=3\ and\ b = 2

4 0
3 years ago
I don't understand it at alll someone please give me the answer
goldenfox [79]
I hope this helps you

7 0
3 years ago
Read 2 more answers
The slopes of perpendicular lines are _______ reciprocals.
MariettaO [177]
The negative reciprical


7 0
3 years ago
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Create an equation that you can use in everyday life. Then solve it.
galina1969 [7]
If you were to plan a party, you could use a linear equation. for example, the room you are renting is $500. The price for food per person is $10

5 0
2 years ago
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