All categories

2 years ago

Paolo pays 244 Dolors for 5 identical calculators about how much does paolo pay for one calculator

Mathematics

2 answers:

nlexa [21]2 years ago

5 0

244 divided by 5

48.8 is your answer

Sliva [168]2 years ago

3 0

48.8 per calculator

Hope this helps

You might be interested in

for a quadratic equation function that models the height above ground of a projectile, how do you determine the maximum height,

kolbaska11 [484]

Problem

For a quadratic equation function that models the height above ground of a projectile, how do you determine the maximum height, y, and time, x , when the projectile reaches the ground

Solution

We know that the x coordinate of a quadratic function is given by:

Vx= -b/2a

And the y coordinate correspond to the maximum value of y.

Then the best options are C and D but the best option is:

D) The maximum height is a y coordinate of the vertex of the quadratic function, which occurs when x = -b/2a

The projectile reaches the ground when the height is zero. The time when this occurs is the x-intercept of the zero of the function that is farthest to the right.

7 0

6 months ago

Which graph is an example of a function?<br> A) <br> B) <br> C) <br> D)

Serga [27]

A function can only have one y value for every x value.

the answer is D

4 0

2 years ago

Read 2 more answers

A manufacturer of coffee vending machines has designed a new, less expensive machine. The current machine is known to dispense (

cupoosta [38]

Answer:

$t=(15-1) [\frac{0.219}{0.2}]^2 =16.7864$

$p_v = 2*P(\chi^2_{14}>16.786)=0.5355$

And the 2 is because we are conducting a bilateral test.

$\alpha=0.05$ since the the $p_v >0.05$ we fail to reject the null hypothesis.

$\alpha=0.01$ since the the $p_v >0.01$ we fail to reject the null hypothesis.

Step-by-step explanation:

Data given

$\mu=7$ population mean (variable of interest)

$\sigma=0.2$ represent the population standard deviation

$s=0.219$ represent the sample deviation

n=15 represent the sample size

$\alpha=0.05,0.01$ represent the values for the significance level

Hypothesis test

On this case we want to check if the population standard deviation is equal or not to 0.2, so the system of hypothesis are:

H0: $\sigma = 0.2$

H1: $\sigma \neq 0.2$

In order to check the hypothesis we need to calculate the statistic given by the following formula:

$t=(n-1) [\frac{s}{\sigma_o}]^2$

This statistic have a Chi Square distribution distribution with n-1 degrees of freedom.

What is the value of your test statistic?

Now we have everything to replace into the formula for the statistic and we got:

$t=(15-1) [\frac{0.219}{0.2}]^2 =16.7864$

P value

We know the degrees of freedom of the distribution 14 on this case and we can find the p value like this:

$p_v = 2*P(\chi^2_{14}>16.786)=0.5355$

And the 2 is because we are conducting a bilateral test.

$\alpha=0.05$ since the the $p_v >0.05$ we fail to reject the null hypothesis.

$\alpha=0.01$ since the the $p_v >0.01$ we fail to reject the null hypothesis.

3 0

3 years ago

Which point is a distance of 5 units from the point (1, 9)? A. (6, 8) B. (2, 4) C. (3, 3) D. (5, 6)

wolverine [178]

Answer:

Step-by-step explanation:

(6,8) is the correct answer

6 0

2 years ago

The stock of Company A gained 2% today to $27.03. What was the opening price of the stock in the beginning of the day?

Luden [163]

Answer:

The price of the stock in the beginning of the day was $26.5.

Step-by-step explanation:

This question can be solved using a rule of three.

The initial stock of the company, that we want to find, was 100% = 1.

$27.03 is an increase of 2%, so it is 100+2 = 102% = 1.02%. So

$27.03 - 1.02

$x - 1

$1.02x = 27.03$

$x = \frac{27.03}{1.02}$

$x = 26.5$

The price of the stock in the beginning of the day was $26.5.

6 0

3 years ago