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2 years ago

Two pizza delivery drivers compared the mean numbers of deliveries they completed in one day.

Mathematics

2 answers:

myrzilka [38]2 years ago

5 0

Answer:

The mean number of deliveries for driver A is less then the mean for driver B by 3 MADs.

Alenkinab [10]2 years ago

5 0

Answer:

CAN SOMEONE REMOVE THIS ANSWER.

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4. An account was opened with $3000 earning 5%

Natalka [10]

P= $3000
R=5%
Amount=$3300

SI = A-P
= 3300-3000=300.
Therefore SI is $300.

SI = PRT/100

300 = 3000x5xT/100
300= 150T
T = 300/150
T = 2

Therefore . The account has been earning for 2 years

6 0

3 years ago

If y = 3x +1 were changed to y = x+1, how would the graph of the new function

nikitadnepr [17]

Answer:

Step-by-step explanation:

The standard form of a linear equation, a line, is y = mx + b, where m is the slope. The rule is the higher this value of m, the steeper the graph is. If we have the original equation y = 3x + 1, its slope m is 3; in the "new" equation, y = x + 1, its slope is 1. So the "new" equation would be less steep because the slope is a lower value than the original.

7 0

2 years ago

Match the numbers in standard notation with the corresponding numbers in scientific notation.

ankoles [38]

Answer:

a) 864,000,000,000 8.64E11

b) 8,640,000,000 8.64E9

c) 86,400,000,000,000 8.64E13

d) 864,000,000,000,000 8.64E14

Step-by-step explanation:

A scientific notation is a way to represent very large values into the decimal form.

Steps to write in scientific notation:

Move the decimal to left before first digit of the given number.

Find the number of times decimal is moved to left.

Put that number in the exponent of e.

So, matching:

a) 864,000,000,000 8.64E11

b) 8,640,000,000 8.64E9

c) 86,400,000,000,000 8.64E13

d) 864,000,000,000,000 8.64E14

8 0

3 years ago

Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8

drek231 [11]

Answer:

95% Confidence interval: (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, $\bar{x}$ = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)$

(96.06,103.94) is the 95% confidence interval for the population mean test score.

8 0

2 years ago

You volunteer to help drive children at a charity event to the zoo, but you can fit only 7 of the 20 children present in your v

mina [271]

Answer:

for of the vans will have 0.5 and ond will have 0.3

Step-by-step explanation:

7 0

2 years ago