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3 years ago

This activity will help you meet these educational goals:

Mathematics

2 answers:

aliya0001 [1]3 years ago

5 0

Answer:

h = -16t^2 +192t
maximum

Step-by-step explanation:

In order to fill in the values in the given function, we need to assume an initial height for the firework. It is convenient to assume that height (h0) is zero. We are given that v0 = 192, so the model is ...

h = -16t^2 +192t

___

Since the initial upward velocity is well below escape velocity, the firework will eventually fall back to Earth. The height function will have a maximum.

bazaltina [42]3 years ago

4 0

Answer:

$\displaystyle h(t) = -16t^2 + 192t; Maximum$

Step-by-step explanation:

Maximum Value → Parabola opens downward [−A]

Minimum Value → Parabola opens upward [A]

See graph above

I am joyous to assist you anytime.

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Write the equation of a line in point slope form that has a slope of − 3/4 and passes through the point (4, 5). Please explain h

Elan Coil [88]

I guess by slope, you mean gradient.

By knowing the gradient, and a coordinate at which the line passes through, we can use:

y - y1 = m(x - x1)

to get the equation of the line in the form (y = mx + c).

y - 5 = (-3 / 4)(x - 4)

y - 5 = (-3 / 4)x + 3

Rearrange.

y = (-3 / 4)x + 8

4 0

3 years ago

Complete the point-slope equation of the line through (3,6)(3,6) (3,6) left parenthesis, 3, comma, 6, right parenthesis and (5,−

Elanso [62]

Answer:

y = -7x + 27 is the point slope equation that passes through the two points

Step-by-step explanation:

Here, we want to write the equation of the line between (3,6) and (5,-8)

Mathematically, the equation of the line that passes through both points can be represented by ;

y = mx + c

where m is the slope and c is the y-intercept

Let’s find the slope m first;

Mathematically;

slope m = y2-y1/x2-x1

where (x1,y1) = (3,6) and (x2,y2) = (5,-8)

Substitute these values in the slope equation , we have the following;

m = (-8-6)/(5-3) = -14/2 = -7

So the equation becomes;

y = -7x + c

we still need the value of c

To get this, we can substitute any of the points in the equation, where x is the x coordinate of the point and y is the coordinate of the point.

Let’s use (3,6)

Thus we have;

6 = -7(3) + c

c = 6 + 21

c = 27

So the equation becomes;

y = -7x + 27

3 0

3 years ago

Question 1 a

Marizza181 [45]

Answer:

B) A one-sample t-test for population mean would be used.

Step-by-step explanation:

The complete question is shown in the image below.

The marketing executive is interested in comparing the mean number of sales of this year to that of previous year.

The marketing executive already has the value of mean from previous year and uses a sample to calculate the mean and standard deviation of sales for the current year.

Since, data is being collected for one sample only this limits us to chose between one sample test for mean. So now the possible options are one sample t-test for population mean and one sample t-test for population mean.

If we read the statement we can see that we have the value of sample mean and sample standard deviation. Value of population standard deviation is unknown. In cases where value of population standard deviation is not known and sample standard deviation is given, t-test is used.

Therefore, we can conclude that A one-sample t-test for population mean would be used.

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3 years ago

I NEED HELP WITH THIS! ANYONE???

Aneli [31]

Answer:

y-axis, x-axis, y-axis, x-axis

Step-by-step explanation:

Alright, so this problem looks a lot harder than it really is. When you flip a point across the x axis, y becomes negative, and when it is flipped across the y axis, x becomes negative. This means that if the x value changes signs it was flipped on the y axis, and vice versa.

3 0

3 years ago

F(x)= x² - 2x + 4, +(a-1)=?

nordsb [41]

Answer:

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5 0

3 years ago