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3 years ago

I need help where to graph these two inequalities and where I would shade. 15 points to whoever is correct

Mathematics

1 answer:

olga2289 [7]3 years ago

5 0

Y=mx+b is the equation used to solve.
y>x+3 So start on b which in this case is 3, meaning plot the first point on 3. Then you move with x by using rise over run. also shown as rise/run. This means you would rise on the Y-axis using the value before x (also known as m) because there isn't one in this inequality that means we would go up one. Then you run to the right 1 because below the x is a 1. Because this is a greater then sigh you would shade above the line with a dotted line because it isn't equal to. Now try to do the next one on your own and tell me how you do.

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Train a travel 175 miles in a four hours. for train b y=43.5x represents its rate of speed over the same 4 hours which train tra

stepan [7]

Answer:

Train A is faster by a factor of 1.01

Step-by-step explanation:

Given:

Train A:

Distance = 175 Miles

Time = 4 Hours

Train B:

y=43.5x

To Find:

which train travels at a faster rate in by what factor =?

Solution:

The speed of the train A = $\frac{Distance}{time}$

The speed of train A = $\frac{175}{4}$

The speed of train A = 43.75 miles per hour

Speed of the train B is the slope of the given line

The standard equation of the slope of the line is

y = mx+b

where m is the slope

and we are given with

y = 43.5x

So comparing with the standard equation

m = 43.5

Hence the speed of train B is 43.5 miles per hours

Train A travels faster

$Rate =\frac{\text{speed of train A}}{\text {Speed of train B}}$

$rate = \frac{43.75}{43.5}$

rate =1.01

7 0

3 years ago

Help on this thx for helping if you did

vichka [17]

To evaluate two fractions being divided, you must turn the right fraction into a reciprocal. That means you must put the bottom number at the top and then put the top number on the bottom (you’re basically switching them).

8/13 / 3/2

Now, once you turned the other number into a reciprocal, you multiply across. The top number times the other top number and do this to the bottom numbers, too.

8/13 * 3/2 = 24/26

You found the answer, 24/26. But as you can see, it’s not one of the choices. That’s because you need to simplify.

24/26 / 2/2 = 12/13

12/13 is your answer, or choice C!

I hope this helped. Comment below if you have any questions.

6 0

3 years ago

Simplify: (-4+√3)^2 19 – 8√3 –5 –4√3 19+8√3 16 + 8√3

N76 [4]

It is a because when squared the product ensues as such so A Is the value

5 0

3 years ago

I’m the model below,the flat represents one unit. What decimal does the model show

belka [17]

Answer:

2.36

Step-by-step explanation: