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3 years ago

9

PLEASE HELP, WILL GIVE BRAINLIEST

1 answer:

AnnZ [28]3 years ago

6 0

Answer:

Solving a system of inequalities is almost like solving a system of equations. Pretend that the inequality signs are equal signs for a moment. Then, solve the system for the two unknown variables just like how you would solve for in a system of equations.

But, there's a catch. If you divide both sides of the inequality by a negative number, you have to flip the inequality sign. For example, if you are trying to solve the inequality -x > 4 you would have to divide both sides of the equation by -1. We would get x < -4 (see how I switched the inequality sign from > to <).

Once you find the values of x and y (they will be an inequality), graph the solutions.

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Find slope of a line (2,-1) (2,-2)

Dmitriy789 [7]

Answer:

Pretty sure it's Undefined:)

Step-by-step explanation:

8 0

3 years ago

PLEASE ANSWERR ILL OFFER BRAINILIEST

Illusion [34]

Answer:

its A

Step-by-step explanation:

if 20 is my 100 percent and I look for 70 percent it is the rule of 3. 20 x 70 between 100 = 34 Hope this helps

3 0

3 years ago

Marissa subtracted a negative number from a positive number. Her result was negative. Is that reasonable

NISA [10]

Answer:

No.

Step-by-step explanation:

If Marissa subtracts a negative number, it would be like - -x, which is x. So, her result would be positive.

Hope this helps!

5 0

3 years ago

The perimeter of a particular square and the circumference of a particular circle are equal. What is the ratio of the area of th

Tasya [4]

Ratio of the area of the square to the area of the circle is $\frac{\pi}{4} : 1$

In terms of fraction $\frac{\pi}{4}$

<em><u>Solution:</u></em>

Given that perimeter of a particular square and the circumference of a particular circle are equal

To find: ratio of the area of the square to the area of the circle

Let the side of square be "a" and radius of circle be "r"

<em><u>The perimeter of square is given as:</u></em>

Perimeter of square = 4a

<em><u>The circumference of circle is given as:</u></em>

Circumference of circle = 2πr

From given,

perimeter of a particular square and the circumference of a particular circle are equal

perimeter of a particular square = circumference of a particular circle

$4a = 2 \pi r\\\\a = \frac{\pi r}{2}$

We need to find the ratio of the area of the square to the area of the circle.

We know that,

$\text{ Area of the square }= a^2\\\\\text{ Area of the circle }= \pi r^2$

Ratio of area of square to area of circle = $a^2 : \pi r^2$

Substituting the value of $a = \frac{\pi r}{2}$ in above ratio,

Ratio of area of square to area of circle = $(\frac{\pi r}{2})^2 : \pi r^2$

On reducing to lowest terms we get,

⇒ $\frac{\pi^2 r^2}{4} : \pi r^2 = \frac{\pi}{4} : 1$

In terms of fraction we get,

$\frac{\pi}{4} : 1 = \frac{\frac{\pi}{4}}{1} = \frac{\pi}{4}$

Thus ratio of the area of the square to the area of the circle is $\frac{\pi}{4} : 1$

3 0

4 years ago

GIVE ALL CORRESPONDING ANGLE PAIRS. What is true about their mesure?

evablogger [386]

Answer:

angle 7 and 2

angle 6 and 1

angle 4 and 8

angle 3 and 5

7 0

3 years ago