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Alika [10]
3 years ago
13

The height of the tide over time is shown on the graph. Which of the following equations can be used to reasonably model the dat

a represented in the graph? Select two of the following that apply.

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
4 0

Answer:

Options 1 and 4

Step-by-step explanation:

I just took the check.

Murljashka [212]3 years ago
3 0

Answer:

Option 1.f(x) = -3sin(\frac{\pi }{6}x)+3

Step-by-step explanation:

The height of the tide over the time is shown on the graph.

Its a periodic function (sine graph) plotted on a graph in which variables are

Amplitude a = (6-0)/2 = 3

Period = 15-3 = 12

Therefore b = 2π/period = 2π/12 = π/6

horizontal shift = 0

Vertical shift = 3

Since the function starts with negative sign that means its below the x-axis.

So as per standard formula of f(x) = asin(bx+c)+d

option which matches all these parameters is Option 1. f(x) = -3sin(\frac{\pi }{6}x)+3

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A scientist selected a random sample of seven varieties of peach ice cream to investigate the relationship between the density,
ValentinkaMS [17]

Answer:

The significance test that would be used to investigate whether there is convincing evidence at 0.05 level of significance that a greater percent of peaches in the ice cream is associated with an increase in the density of the ice cream is option C;

C. A linear regression t-test for slope

Step-by-step explanation:

The linear regression t-test for slope is a test for determining the existence of a statistically significant linear relationship between two variables, a independent variable, X and an dependent variable Y in the following form;

Y = B₀ + B₁·X

The test is used to test the regression line slope where we have;

B₀ = The constant

B₁ = The slope also known as the regression coefficient

The given information tested in the question is if an increase in the peaches in the ice cream is associated with an increase in the density of the ice cream, therefore, the test to investigate the relationship between the rate of both variables is the linear regression t-test for slope.

Therefore, we have

Y = B₀ + B₁·X

Where;

X = The percentage of peaches in the ice cream

Y = The density of the ice cream

7 0
2 years ago
If 44.14 km is 4 times faster wind speed than 5 hours ago, what was the wind speed 5 hours ago?
Stells [14]
44.14 / 4 = 11

I think the wind speed is 11km
7 0
3 years ago
Read 2 more answers
Last year my parents had a combined income of 56,000 They paid 13,600 in federal income taxes. What simplified fraction shows ho
koban [17]

Answer:

\frac{17}{70}

Step-by-step explanation:

From the information given, you know that your parents paid $13,600 in taxes from their income that was $56,000. The fraction would be:

\frac{13600}{56000}

To simplify this, first you can eliminate two zeros at the end of each number:

\frac{136}{560}

Now, you can divide both numbers by 8, which will result in:

\frac{17}{70}

According to this, the simplified fraction that shows how much your parents spent on their federal taxes is \frac{17}{70}.

5 0
3 years ago
Write an equation of the line that passes through (-2, 8) and (-4, -4)
Nady [450]

Answer:

y=6x+20

Step-by-step explanation:


6 0
3 years ago
One x-intercept for a parabola is at the point (-2,0).
leva [86]
The other x-intercept is:
(1/2, 0) OR (.5, 0)
5 0
3 years ago
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