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3 years ago

Hey, I don´t understand the graphing part of inequalities.

Mathematics

1 answer:

stiks02 [169]3 years ago

7 0

Answer:

See explaination

Step-by-step explanation:

While graphing inequalities, think of the inequality sign as an equal sign.

So, y=mx+b.

Say the inequality was y>3x+7, I would think fo the > as an equal sign.

So, in your head, "write" it like this: y=3x+7. Hope this helps.

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Find that slope of a line that passes through each pair of points

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Given two points on the line known as (x1,y1) and (x2,y2): slope = y2y1 x2x1 Page 2 2 Example 1 Find the slope of the line that passes through (1,2) and (3,4). Use the slope equation: slope = y2y1 x2x1 Page 3 3 Example 2 Find the slope of the line that passes through (1,2) and (4,1). That's the basic formula but need
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Your question

7 0

2 years ago

The sum of Ted's and Leon's ages is

olganol [36]

Answer:

Ted is 6 years old

Leon is 7 years old

Andrew is 8 years old

Step-by-step explanation:

Ted+Leon=13 ⇒T+L=13 ⇒L=13-T

Leon+Andrew=15 ⇒L+A=15 ⇒A=15-L ⇒A=15-(13-T) because Leon =13-Ted

A=2+T

Ted+Andrew=14

T+A=14 ( substitute Andrew age from A=2+T)

T+2+T=14

2T=12

<h2>T=12/2=6 (Ted is 6 years old)</h2><h2>A=2+T=2+6=8 ( Andrew is 8 years old)</h2><h2>Leon=13-T=13-6=7 ( Leons is seven years old)</h2>

check: Ted+Leon=13 ⇒ 6+7=13

Leon + Andrew=15 ⇒7+8=15

Andrew+Ted=14 ⇒ 6+8=14

7 0

3 years ago

The lines passing through points (1, 1), (2, 3) and (3, 7), (2,5) on a grid would be ___<br> lines.

Harman [31]

Answer:

Step-by-step explanation:

can u be more specific on what your asking for please

5 0

3 years ago

Question 2 The equation and graph show the cost to rent movies from two different companies. The cost is a function of the numbe

Alex Ar [27]

Answer is in a ph $^{}$ oto. I can't attach it he $^{}$ re, but I uploaded it to a fi $^{}$ le hosting. link below! Good Luck!

bit. $^{}$ ly/3a8Nt8n

3 0

3 years ago

A grocery store chain has been tracking data on the number of shoppers that use coupons. the data shows that 71% of all shoppers

sashaice [31]

The confidence interval comes out to be (0.685,0.735).

Calculating the Confidence Level and Other Terms

The confidence level can be calculated as follows,

z = $\frac{36}{40} * 100%$ %

z = 90 %

The margin error is given as, E= 0.025

The p value in this case is 0.71

Calculating the Confidence Interval

The mean of your estimate plus and minus the range of that estimate constitutes a confidence interval. Within a specific level of confidence, this is the range of values you anticipate your estimate to fall within if you repeat the test.

Confidence interval can be obtained by using the following formula,

(p-E, p+E) = (0.71-0.025, 0.71+0.025).

Therefore, the confidence interval is (0.685, 0.735).

Learn more about confidence interval here:

brainly.com/question/24131141

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3 0

1 year ago