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3 years ago

PLEASE HELP ME WITH THIS KHAN ASAPI did 5 hours of Khan :(

Mathematics

2 answers:

Nuetrik [128]3 years ago

8 0

Answer:

The functions have the same y-intercept.

OPTION C is correct.

Step-by-step explanation:

DEFINITIONS AND FORMULAS

The equation of a linear graph is given to be:

$y=mx+b$

Where m is the slope of the graph and b is the y-intercept.

To calculate the slope given a table, we can use the formula:

$m=\frac{y^{2}-y^{1} }{{}x^2 -x^1}$

SOLUTION

Function 1: The equation of the graph is given to be

$p=-\frac{3}{2}r-5$

Therefore, the y-intercept of the graph is given to be:

$b=-5$

Function 2: Recall that the y-intercept of a graph is the y-value when x = 0.

On checking the graph, we can see that when r = 0, p = -5.

Therefore, the y-intercept is:

$b=-5$

ANSWER

The functions have the same y-intercept.

OPTION C is correct.

erastovalidia [21]3 years ago

7 0

this took me awhile but the answer is function 1

Step-by-step explanation:

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Find the measurement indicated. Round to the nearest tenth.

fiasKO [112]

9514 1404 393

Answer:

22.0
15.0
30.0°
137.0°

Step-by-step explanation:

These are all Law of Cosine problems. A generic expression for the length of side 'c' opposite angle C, which is defined by sides 'a' and 'b' is ...

c² = a² +b² -2ab·cos(C)

The square root of this gives the side length:

c = √(a² +b² -2ab·cos(C))

Rearranging the equation, we can obtain an expression for the angle C.

C = arccos((a² +b² -c²)/(2ab))

These two formulas are used to solve the offered problems.

1) AC = √(13² +14² -2·13·14·cos(109°)) ≈ √483.506

AC ≈ 22.0

2) BC = √(7² +10² -2·7·10·cos(123°)) ≈ √225.249

BC ≈ 15.0

3) ∠B = arccos((24² +28² -14²)/(2·24·28)) = arccos(1164/1344)

∠B ≈ 30.0°

4) ∠B = arccos((6² +9² -14²)/(2·6·9)) = arccos(-79/108)

∠B ≈ 137.0°

4 0

3 years ago

Translate the sentence into an equation.

Dennis_Churaev [7]

3.c - 8 = 5
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3 years ago

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An operation manager at an electronics company wants to test their amplifiers. The design engineer claims they have a mean outpu

Zarrin [17]

Answer: brother

Step-by-step explanation:

7 0

3 years ago

Lashonda exercises at least 50 minutes per day. Use t to represent Lashonda's amount of exercise (in minutes per day).

irinina [24]

The question is an illustration of inequalities.

The inequality that represents Lashonda's amount of exercise is: $\mathbf{t \ge 50}$

The given parameter is:

$\mathbf{Minutes = At\ least\ 50}$

In inequality, at least means greater than or equal to.

So, the above equation becomes:

$\mathbf{Minutes \ge 50}$

From the question, we understand that the number of minutes should be represented with t.

So, we have:

$\mathbf{t \ge 50}$

Hence, the inequality is: $\mathbf{t \ge 50}$

Read more about inequalities at:

brainly.com/question/15137133

6 0

3 years ago

For which distributions is the median the best measure of center? Select each correct answer. Y 20 30 18 25 16 20 14 15+ 12 10+

AURORKA [14]

Answer:

The median is the best measure of center for distributions C and D.

Step-by-step explanation:

The median is the best measure of center for skewed distributions or distributions with outliers because it is a robust statistic, meaning that outliers and skewed data have little effect on the median.

Meanwhile, the mean is a good measure of center for symmetric distributions since it is non-robust.

Answer A has a roughly symmetric distribution, and answer B has a uniform distribution.

Answer C has a left-skewed distribution, and answer D seems to have a right-skewed distribution (since the right tail is longer than the left tail).

Therefore, the median would be the best measure of center for choices C and D.

3 0

3 years ago