All categories

3 years ago

PLEASE HELP ME WITH THIS!!!

Mathematics

1 answer:

Allisa [31]3 years ago

6 0

Answer:

6. Bobby makes more money than John

Step-by-step explanation:

John's profits

(4.2 × $10^{5}$ ) + (3.2 × $10^{6}$ )

= 36.2 x 10^5

= 3.62 x 10^6

Bobby's profits:

323659000 = 3.23659 x 10^8

3.23659 x 10^8 > 3.62 x 10^6

You might be interested in

What is 3ft to 6yd in simplest form

Montano1993 [528]

3 ft are in 1 yard
so 3/18
=1/6

8 0

3 years ago

Read 2 more answers

Consider a drug testing company that provides a test for marijuana usage. Among 310 tested subjects, results from 28 subjects w

Naily [24]

Answer:

$z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569$

The p value for this case can be calculated with this probability:

$p_v =P(z$

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

Step-by-step explanation:

Information given

n=310 represent th sample selected

X=28 represent the subjects wrong

$\hat p=\frac{28}{310}=0.0903$ estimated proportion of subjects wrong

$p_o=0.1$ is the value to verify

$\alpha=0.05$ represent the significance level

t would represent the statistic

$p_v$ represent the p value

System of hypothesis

We want to test the claim that less than 10 percent of the test results are wrong ,and the hypothesis are:

Null hypothesis: $p\geq 0.1$

Alternative hypothesis: $p < 0.1$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info we got:

$z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569$

The p value for this case can be calculated with this probability:

$p_v =P(z$

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

5 0

4 years ago

The aquarium has 10 more red fish than blue fish. 60% of the fish are red. How many blue fish are in the aquarium? Show your wor

IgorC [24]

Answer:

The number of blue fish that are in the aquarium is 20.

Hope this helps!!

6 0

2 years ago

Geometry. 8.) what is the value of x ? a. 62 b. 68 c. 124 d. 112

Mariulka [41]

The answer is b for this problem

6 0

4 years ago

Read 2 more answers

The sum of two numbers is 39. the second number is 6 more than half of the first number. let a represent the firstnumber and let

sweet-ann [11.9K]

Answer:

a = 22
b = 17

Step-by-step explanation:

Givens

Let a = the first number

Let b = the second number

Equations

a + b = 39

b = 1/2 * a + 6

Put the second equation into the first one

a + 1/2 * a + 6 = 39 Simplify the left.

(3/2)a + 6 = 39 Subtract 6 from both sides

(3/2)a + 6 - 6 = 39 - 6 Combine

(3/2)a = 33 Multiply both sides by 2

3a = 33*2

3a = 66 Divide both sides by 3

3a/3 = 66/3

a = 22

b = 1/2 a + 6

a = 22

b = 1/2 * 22 + 6

b = 11 + 6

b = 17

Check

22 + 17 = 39

6 0

2 years ago