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Paha777 [63]
3 years ago
13

I need help on this :( pls help me

Mathematics
1 answer:
Musya8 [376]3 years ago
7 0

Answer:

3.

x^{2}  - x - 12\\x^{2}  - 4x + 3x -12\\x(x -4)+3(x-4)\\(x+3)(x-4)

4.

x^{2} -8x +12\\x^{2} -6x -2x +12\\x(x-6)-2(x-6)\\(x-2)(x-6)\\

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Write Algebraically: Thirty less than negative fifteen times a number is greater than 54 more than negative three times a number
Yuri [45]

Answer

-15x - 30 > -3x + 54

Explanation

Let's break this sentence down.

Thirty less than means [whatever goes before] minus 30.

Negative fifteen is -15.

Times a number means multiplying by a number. The number will be a variable. And in this case, the variable will be x.

Is greater than means more than.

Negative three is -3.

Times a number means multiplying by a number (in case you forgot or get confused, I wrote it again). That number will be a variable; x. This is the same number.

Now let's write down the equation.

Let's break both sides of the inequality, meaning the left side of 'greater than' and the right side.

The left side says this; "thirty less than negative fifteen times a number."

So let's write this.

So thirty less is minus 30. You are subtracting from "negative fifteen times a number."

Negative fifteen is -15... times a number is -15x.

So the left side of the inequality is -15x - 30.

The right side says this; "54 more than negative three times a number."

54 more than means adding 54 meaning + 54.

And you are adding 54 to "negative three times a number."

Negative three is -3, times a number is -3x.

So the right side of the inequality is -3x + 54.

So the full inequality is -15x - 30 > -3x + 54.

6 0
3 years ago
What is a reasonable measure for the angle shown?
dimaraw [331]
I would say 120 since it’s not at the end near 170

4 0
2 years ago
At a grocery store,39 out of 60 customers use a shopping cart. What percent of the customers use a shopping cart?​
Savatey [412]

Answer:

39 is 65% of 60

65% use a shopping cart.

5 0
3 years ago
The picture shows a barn door:
Hitman42 [59]

Answer:

(D)9 divided by sin 60 degrees

Step-by-step explanation:

From the given figure, using trigonometry

\frac{BC}{AB}=sin60^{{\circ}}

Substituting the given values, we get

\frac{9}{AB}=sin60^{{\circ}}

\frac{9}{sin60^{\circ}}=AB

AB=\frac{9{\times}2}{\sqrt{3}}

AB=\frac{18}{\sqrt{3}}

AB=10.4 feet

Thus, The length of the support AB is 9 divided by sin 60 degrees.

5 0
3 years ago
Read 2 more answers
Solve for x: 24x + 12 = 16
vfiekz [6]

Answer:

x=1/6 or x=0.1666666667

Step-by-step explanation:

5 0
3 years ago
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