Which number can each term if the equation be multiplied by to eliminate the decimals before solving

Please help me I just can’t figure this out. I’ll mark you brainiest if you know it but ONLY if you know it

bogdanovich [222]

Answer:

Step-by-step explanation:

All square angles are 90° exactly 90° so we can use that to your advantage. since "7x + 3" is one of the square's angles, that means 7x + 3 must equal 90°. (7x + 3)° = 90°.

7x + 3 = 90

7x = 90 - 3

7x = 87

7x/7 = 87/7

x = 87/7

7 0

2 years ago

Which system of inequalities does the graph represent? Which test point satisfies both of the inequalities in that system?

alisha [4.7K]

Answers + Explanation:

1. Red inequality

First, find the equation of the red line.

You can see that when x goes up by 2, y goes down by 3 so the slope would be -3/2 or -1/5.

Then, the y-intercept is 1.5 so the equation is y = -1.5x + 1.5.

Since you can see the green part is <em>below</em> the red line and the line is solid, the inequality would have a ≤ sign.

The inequality is y ≤ -1.5x + 1.5

2. Blue inequality

Next, find the equation of the blue line.

You can see that when x goes up by 4, y goes down by 3 so the slope of the line would be -3/4 or -0.75.

Next, you can see that the y-intercept is 0.5.

This means that the equation of the line is y = -0.75x + 0.5.

Since the green shaded part is <em>above </em>the blue line and the blue line is solid, the inequality will have a ≥ sign.

It would be y ≥ -0.75x + 0.5

3. Test point

Any point in the green shaded section should work as a test point. For example, you can use (-1, 2)

Plug this into both in equalities:

Red: 2 ≤ -1.5 * -1 + 1.5

2 ≤ 1.5 + 1.5

2 ≤ 3

true

Blue: 2 ≥ -0.75 * -1 + 0.5

2 ≥ 0.75 + 0.5

2 ≥ 1.25

true

Both are true so this is correct.

7 0

2 years ago

What is the greatest common factor of 20x and 35y?

IceJOKER [234]

_______________________________________________________
The greatest common factor (GCF) of "20x and 35y" is: " 5 " .
_______________________________________________________
The answer is: " 5 " .
_______________________________________________________

Consider: "20x" and "35y" ;

Each of the TWO (2) terms contains "ONE" (1) [single] variable. The variable within EACH term differs from each other.

As such: "The greatest common factor (GCF) of "20x" and "35y" is the:
"greatest common factor (GCF) of "20" and "35" ;
_______________________________________________________
List the factors for each number:
_______________________________________________________
20: 1, 2, 4, 5, 10, 20 .

35: 1, 5, 7 , 35.
_______________________________________________________
The greatest common factor (GCF) of "20x and 35y" is: " 5 " .
_______________________________________________________
The answer is: " 5 " .
_______________________________________________________

6 0

2 years ago

A company's profit (in millions of dollars) can be represented by x^2-6x+12, where x is the number of years since the company st

Sergeu [11.5K]

The function that models the profit of the company in million of dollars is:

$P= x^{2} -6x+12$

where x represents the number of years since the company started. We want to find when the profit of the company was $4 million. Setting P as 4 in above equation, we can find the value of x when the profit was $4 million.

$4= x^{2} -6x+12 \\ \\ 
 x^{2} -6x+8=0 \\ \\ 
 x^{2} -2x-4x+8=0 \\ \\ 
x(x-2)-4(x-2)=0 \\ \\ 
(x-2)(x-4)=0 \\ \\ 
x=2, x=4$

Thus, we can conclude that the profit of the company was $4 million in 2nd and 4th year

6 0

2 years ago

What is a common factor for x^2-9 and x^2-5x+6

trapecia [35]

Answer:

y=60x-15x^2

Step-by-step explanation:

this one opens downwards

5 0

3 years ago

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