5.

Mathematics

1 answer:

kiruha [24]2 years ago

3 0

Answer:

reg thinks of 7

Step-by-step explanation:

20-14/2=7

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There are four blood types, and not all are equally likely to be in blood banks. Records in a local blood bank show that, histor

zvonat [6]

Answer:

No, because all the expected frequencies must be higher than 5.

Step-by-step explanation:

The chi-square test might be performed in those situations in which we need to know if a series of observations adjust or not to a theoretical function, such as the normal, Poisson, or binomial.

The chi-square test does not require the number of files to coincide with the number of columns in the table. It does not establish any restriction about the number of modalities per variable. However, the expected frequencies or counts should not be less than five.

In the exposed example, this unique rule is not accomplished, so the chi-square test can not be performed.

3 0

2 years ago

Need help will def give Brainlyest

Aleksandr-060686 [28]

Your answer will be y=-2/3x+4/3 and I believe I deserve the brainliest answer :))) Hope this helps!

7 0

3 years ago

A nature preserve worker calculates there are 6,000 deer in Sharon Woods Park. She also estimates that 75 more deer die than are

Nikolay [14]

The linear equation used to represent this situation is y = -75x + 6000

A linear equation is in the form:

y = mx + b;

where y, x are variable, m is the slope of the line and b is the y intercept.

Let y represent the amount of deer present in x years. There are 6000 deer presently, hence a = 6000. Also 75 more deer die than are born each year. Hence m = -75.

The linear equation is given by:

y = -75x + 6000

In 3 years:

y = -75(3) + 6000

y = 5775

For there to be 5325 deer:

5325 = -75x + 6000

x = 9 years

Find out more at: brainly.com/question/21105092

5 0

2 years ago

Can someone please help me out

Umnica [9.8K]

First, we have to figure out the angles on the interior of the triangles. Since the 90° angle and the angle next to it form a straight line, we know that they are supplementary and add up to 180°. We would then subtract 90° from 180° to find the value of that angle, which comes out to be 90°. Next, since the angle measuring 125° and the angle next to it are supplementary, we would repeat the same procedure: 180° - 125° = 55°. Now that we know the values of two of the interior angles of the triangle, we can solve for the third. The angles of a triangle should add up to 180°, so we can solve for p like this:

90 + 55 + p = 180
145 + p = 180
p = 180 - 145
p = 35

The value of p is 35°.