All categories

1 year ago

In which quadrants is the ordinate positive?

Mathematics

2 answers:

Anni [7]1 year ago

7 0

Answer:

I and II

Step-by-step explanation:

The ordinate is the y element in an ordered pair in a Cartesian coordinate system. The quadrants in which the ordinates are positive should be at quadrants I and II.

bagirrra123 [75]1 year ago

7 0

First quadrant =(+, +)

Second quadrant =(-, +)

ThirdQuadrant =(-, -)

Fourth Quadrant =(+, -)

You might be interested in

Jake is the kicker on the football team and has an amazing kick during the game. The path of the football can be measured by the

xeze [42]

The height of the ball when it is 5 meters away from Jake to the nearest whole number is 160 meters:
h=-.625*5(5-56)=159.375 meters exact.

3 0

2 years ago

The Boston public school district has had difficulty maintaining on-time bus service for its students ("A Year Later, School Bus

zheka24 [161]

Answer:

$z=\frac{8-12}{\frac{12}{\sqrt{36}}}=-2$

C. z=-2.00

Step-by-step explanation:

Data given and notation

$\bar X=8$ represent the sample mean

$\sigma=12$ represent the population standard deviation

$n=36$ sample size

$\mu_o =12$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the ture mean is equal to 12 or no, the system of hypothesis would be:

Null hypothesis: $\mu =12$

Alternative hypothesis: $\mu \neq 12$

If we analyze the size for the sample is > 30 and know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Calculate the statistic

We can replace in formula (1) the info given like this:

$z=\frac{8-12}{\frac{12}{\sqrt{36}}}=-2$

C. z=-2.00

8 0

1 year ago

Adam is ordering pizza for a company party that he needs to have catered. Company A charges $8 for each pizza and a delivery/set

Wittaler [7]

Answer:

Inequality is $8x+45 < 12x+5$ and value of x>10.

Step-by-step explanation:

Given : Adam is ordering pizza for a company party that he needs to have catered.

Company A charges $8 for each pizza and a delivery/set-up fee of $45. Company B charges $12 for each pizza and a delivery/set-up fee of $5.

To find : Which inequality can be used to find x, the least number of pizzas that can be ordered so that the total charge for Company A is less than the total charge for Company B?

Solution : Let x be the number of pizza

Company A charges $8 for each pizza and a delivery/set-up fee of $45.

Total charge of Company A is $8x+45$