All categories

3 years ago

Please help on these 2 questions.

Mathematics

2 answers:

Law Incorporation [45]3 years ago

6 0

Answer:

1. 8.75

2. 3.48

Step-by-step explanation:

hope this helps :3

Mrac [35]3 years ago

3 0

Answer:

1. B $8.75

2. D Between 3 and 4 cups/ 4.11

You might be interested in

Celia bought a bag of 1212 goldfish for \$3$3. What is the cost of 11 goldfish?

Anvisha [2.4K]

$2.75
it would most likely be 4 goldfish for $1

7 0

3 years ago

Help on math plzzzz....

NARA [144]

5 is c
6 is d
7 is a
Ghfxghxfgdgsfgshsdghfsghfghsfgsgfh

8 0

2 years ago

A-line passes through the points (2, -2) and (-6,2). the point (a,-4) is also in the line. what is the value of A

Tomtit [17]

I believe the answer would be d.6

8 0

2 years ago

Read 2 more answers

A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

allochka39001 [22]

Answer:

a) The test statistic is $z = -2.51$

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

$H_0: p_{B} - p_{NY} = 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that $X = 0.581 - 0.832 = -0.251$

0 is tested at the null hypothesis:

This means that $\mu = 0$

Standard error = 0.1

This means that $s = 0.1$

Test statistic:

$z = \frac{X - \mu}{s}$

$z = \frac{-0.251 - 0}{0.1}$

$z = -2.51$

The test statistic is $z = -2.51$

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

5 0

3 years ago

When Sebastian left his house in the morning, his cell phone battery was partially charged. The charge remaining in Sebastian's

Evgesh-ka [11]

Answer:

The slope is -9

and the interpretation is that the percentage that drops on the battery per hour is 9%

Step-by-step explanation:

Generally, the equation of a straight line can be represented by the formula;

y = mx + b

where m is the slope and b is the y-intercept

With respect to the given equation, the slope is -9

What it means is that the percentage that drops per hour on the battery is 9%

8 0

3 years ago