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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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Graph the system below and write its solution.

Diano4ka-milaya [45]

Answer:

See the graph attached. It has one solution: (6,-4)

Step-by-step explanation:

The slope-intercept form of a line is:

$y=mx+b$

Where m is the slope and b is the intersection of the line with the y-axis.

Given the first equation $y =\frac{-1}{2}x -1$

You can identify that:

b=-1

Substitute y=0 to find the intersection with the x-axis

$0 =\frac{-1}{2}x -1\\1(-2)=x\\x=-2$

This line passes through the points (0,-1) and (-2,0)

Given the second equation:

$-2 + y = -6$

Solve for y:

$y = -6+2\\y=-4$

It passes through the point (0,-4).

Now, you can graph. See the figure attached.

It has one solution,which is the point of intersection of both lines: (6,-4)

5 0

3 years ago

In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 21 vowels and 18 consonants, wha

Nonamiya [84]

Answer:

21 vowels.....15 consonants.......added = 36 tiles

probability of first picking a consonant : 15/36 reduces to 5/12

replacing it...

probability that second pick is a vowel : 21/36

probability of both : 5/12 * 21/36 = 105 / 432 reduces to 35/144 <===

Step-by-step explanation:

3 0

2 years ago

What is the product?<br> (6r-1)(-88-3)

8090 [49]

(6r-1)(-88-3)

Multiply the two brackets together

(6r)(-88)=-528r

(6r)(-3)=18r

(-1)(-88)=88

(-1)(-3)=3

-528r-18r+88+3 ( combine like terms)

Answer: -546r+91

4 0

2 years ago

Find the circumference of a circle if the radius is 10 feet.

maria [59]

$c = 2\pi r$
2×3.14×10= 62.8

C ≈ 62.83

4 0

3 years ago

Use the net to find the lateral area of the cylinder<br>

Elena L [17]

Answer:

The answer to your question is: A = 282.6 in²

Step-by-step explanation:

Data

height = 9 in

radius = 5 in

Formula

A = 2πrh

Process

A = 2(3.14)(5)(9)

A = 282.6 in²

4 0

2 years ago

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