All categories

1 year ago

Lmk asap please cuz I need it by tonight

Mathematics

1 answer:

OLEGan [10]1 year ago

7 0

Answer: 20

Step-by-step explanation:

2x^2 + 4y=

2(2)^2 + 4(3)=

2(4)+12=

8+12=20

You might be interested in

A random sample of adults were asked whether they prefer reading an e-book over a printed book. The survey resulted in a sample

djyliett [7]

Answer: $(0.10\ ,\ 0.18)$

Step-by-step explanation:

According to the empirical rule, the 95% confidence interval for the true population proportion is given by :-

$(p'-2\sigma_{p'}\ ,\ p'+2\sigma_{p'})$

Given : . The survey resulted in a sample proportion of p′=0.14, with a sampling standard deviation of σp′=0.02, who preferred reading an e-book.

Then, the 95% confidence interval for the true proportion of adults who prefer e-books will be :-

$(0.14-2(0.02)\ ,\ 0.14+2(0.02))\\\\=(0.14-0.04\ ,\ 0.14+0.04)\\\\=(0.10\ ,\ 0.18)$

Hence, the 95% confidence interval for the true proportion of adults who prefer e-books= $(0.10\ ,\ 0.18)$

8 0

2 years ago

.I want a way to solve this question

Verdich [7]

Check the picture below.

so then γ ≈ 180 - 69 - 43, γ ≈ 68.

8 0

2 years ago

Azul has 4 green picks and no orange picks. You add orange picks so that there are 2 orange picks for every 1 green pick. How ma

Troyanec [42]

Answer:

12 picks total

Step-by-step explanation:

1. multiply 2 (orange picks) by 4 (green picks)

2*4=8 total orange picks

2. add green picks (4) + orange picks (8)

4+8=12

6 0

2 years ago

Evan, Claire, Jaya and Tim are running a 3 km relay race. Evan ran 7/8 of a km,

Vanyuwa [196]

Answer:

11/24

Step-by-step explanation:

7/8 + 11/12 + 3/4 + x = 3 km

7*3/8*3 = 21 / 24

11*2 / 12 * 2 = 22 /24

3*6 / 4*6 = 18/24

21/24 + 22/24 + 18/24 + x = 3

61 / 24 + x = 3

x = 72/24 - 61/24

x = 11 / 24

Tim has to run 11/24 of the race

7 0

3 years ago

A psychologist is interested in constructing a 95% confidence interval for the proportion of people who accept the theory that a

elena-14-01-66 [18.8K]

Aja the same thing in the world and is

8 0

2 years ago