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ElenaW [278]
2 years ago
12

Please do all of the parts,, im begging

Mathematics
1 answer:
nadya68 [22]2 years ago
8 0

Answers:

1. Miles driven

2. Price of rental

3. y = 2x + 6

(The fixed/initial cost is b, the y-intercept. The 2 is the price per mile and the x is the miles driven.)

4. y = 3x

(Since there's no initial cost, the equation is simply 3 times x)

5. A

6. The slope for Laguna is 2. This is the price per mile.

7. The slope for Salvatori is 3. This is the price per mile.

8. The y-intercept for Laguna is 6. This is the initial, fixed cost of renting a truck.

9. The y-intercept for Salvatori is 0. This means there is no initial cost.

10. The point of intersection is the amount of miles driven at which both companies are the same price. If Jenny drives 6 miles, she'll pay $18 either way.

11. I don't know how to do this one, sorry! >_<

I hope I helped on 1-10!

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Jolene earned a 75% on her last quiz. If there were 8 questions, how many did she answer correctly
sveticcg [70]

Answer:

6

Step-by-step explanation:

100% / 8 questions= each question is worth 12.5 points

12.5*6=75

Therefore 6 were answered correctly

3 0
2 years ago
Need help solving please ​
zzz [600]

Answer:

2

Step-by-step explanation:

because u have to single out the 3 x by subtracting 2 on both sides

8 0
3 years ago
H E L P PLZZZ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Kitty [74]

Answer:

138

Step-by-step explanation:

just plug in the numbers:

4*6^2 - 36/6

use pemdas

4*36 - 6 = 144-6 = 138

7 0
2 years ago
Read 2 more answers
A manufacturer of paper coffee cups would like to estimate the proportion of cups that are defective (tears, broken seems, etc.)
Maksim231197 [3]

Answer:

a

  The 95% confidence interval is  0.0503  <   p < 0.1297

b

The sample proportion is  \r p =  0.09

c

The critical value is  Z_{\frac{\alpha }{2} } =  1.96

d

 The standard error is  SE   =0.020

Step-by-step explanation:

From the question we are told that

   The  sample size is  n =  200

     The number of defective is  k =  18

The null hypothesis is  H_o  :  p  =  0.08

The  alternative hypothesis is  H_a  :  p > 0.08

Generally the sample proportion is mathematically evaluated as

            \r p =  \frac{18}{200}

            \r p =  0.09

Given that the confidence level is  95% then the level  of significance is mathematically evaluated as

        \alpha  =  100 -  95

        \alpha  =  5\%

        \alpha  =  0.05

Next we obtain the critical value of  \frac{ \alpha }{2} from the normal distribution table, the value is  

        Z_{\frac{\alpha }{2} } =  1.96

Generally the standard of error is mathematically represented as

          SE   =  \sqrt{\frac{\r p (1 -  \r p)}{n} }

substituting values

         SE   =  \sqrt{\frac{0.09  (1 -  0.09)}{200} }

        SE   =0.020

The  margin of error is  

       E =  Z_{\frac{ \alpha }{2} }  * SE

=>    E =  1.96  *  0.020

=>   E =  0.0397

The  95% confidence interval is mathematically represented as

     \r p  -  E  <  \mu <  p <  \r p  + E

=>   0.09 - 0.0397  <  \mu <  p < 0.09 + 0.0397

=>  0.0503  <   p < 0.1297

7 0
3 years ago
How do you do -2(t + 4)
Troyanec [42]
-2 (t+4)= -2 (t)+-2 (4)= -2t-8
7 0
2 years ago
Read 2 more answers
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