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4 years ago

What is the justification for it step in solving the inequality? 75x + 35 > 7(11x+9)+4

1 answer:

5 0

75x - 35 ≥ 77x + 63 + 4  Distributive property.
75x -35 ≥ 77x + 67  Combine like terms.
-2x - 35 ≥ 67 Subtraction property of equality.
-2x ≥ 102  Addition property of equality.
<span>x ≤ 51  Division property of equality.</span>

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What is the domain of the following parabola? (5 points)

tigry1 [53]

Answer:

Step-by-step explanation:

The domain of this quadratic is "all real numbers." The function is defined for all x.

4 0

4 years ago

PLSSSSSS HELP <br> BRAINLIST

Helga [31]

Answer:

The step 4 is not what he should have done. But the wrong is step 5, because if he added -2x both sides, it would give the following equation:

$x-12=-4x+6$

and not $x-12=6$

Note that in step 4 he should have added 2x and not -2x to both sides, but we still have the equality. The problem is that step 5 is totally wrong.

I don't know what answer is expected to this question, but I would mark step 5, because this is mathematically wrong.

Solving the equation

$3(x-4)=-4-2(x-5)$

Using distribution

$3x-12=-4-2x+10\\3x-12=-2+6$

Add $2x$ both sides

$3x-12+2x=-2x+6+2x$

$5x-12=6$

Add 12 both sides

$5x-12+12=6+12\\5x=18$

Divide both sides by 5

$x=\frac{18}{5}$

4 0

3 years ago

What is 34 & 3/4 inches divided by 2 equal

Sever21 [200]

Answer:

17 and 3/8 inches

Step-by-step explanation:

..............................

(34+3/8)/2=17+3/16

plz....

mark it as a brilliant answer

7 0

3 years ago

Find the smallest integer value of X that satisfies the inequality of 6X>7

Nastasia [14]

Answer:

x = 2

Step-by-step explanation:

The solution set can be found by dividing the inequality by the coefficient of x.

6x > 7

x > 7/6

The smallest integer greater than 7/6 is 12/6 = 2.

The smallest integer solution is x = 2.

5 0

2 years ago

HELP ASAP PLEASEEE What is the equation of the line in the form y=mx+b

lilavasa [31]

Answer:

y=x

Step-by-step explanation:

y=mx+b

m is the slope

b is the y-intercept

Since the y-intercept is at the 0 axis, the y-intercept will be zero

So now the equation is looks like this:

y=mx (Since y=mx+0 doesn't make a difference)

Now find the slope

Which is 1

Thus y=x

Hope this helps!

3 0

3 years ago