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3 years ago

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Choose one. Statistics are A) Measures of populations; B) Always estimations; C) Notated with small Roman letters; D) (b) and (c

)

1 answer:

DanielleElmas [232]3 years ago

7 0

D is the answer
hope it helps

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Lesson: 1.08Given this function: f(x) = 4 cos(TTX) + 1Find the following and be sure to show work for period, maximum, and minim

Ber [7]

The given function is

$f(x)=4\cos \text{(}\pi x)+1$

The general form of the cosine function is

$y=a\cos (bx+c)+d$

a is the amplitude

2pi/b is the period

c is the phase shift

d is the vertical shift

By comparing the two functions

a = 4

b = pi

c = 0

d = 1

Then its period is

$\begin{gathered} \text{Period}=\frac{2\pi}{\pi} \\ \text{Period}=2 \end{gathered}$

The equation of the midline is

$y_{ml}=\frac{y_{\max }+y_{\min }}{2}$

Since the maximum is at the greatest value of cos, which is 1, then

$\begin{gathered} y_{\max }=4(1)+1 \\ y_{\max }=5 \end{gathered}$

Since the minimum is at the smallest value of cos, which is -1, then

$\begin{gathered} y_{\min }=4(-1)+1 \\ y_{\min }=-4+1 \\ y_{\min }=-3 \end{gathered}$

Then substitute them in the equation of the midline

$\begin{gathered} y_{ml}=\frac{5+(-3)}{2} \\ y_{ml}=\frac{2}{2} \\ y_{ml}=1 \end{gathered}$

The answers are:

Period = 2

Equation of the midline is y = 1

Maximum = 5

Minimum = -3

3 0

1 year ago

Please help me with my homework

Alona [7]

so for A it is 16 times as large because the area is 3*3 which is 9 but since it is a triangle the area is halved and is 4.5 and divide 72 by 4.5 which gives us 16

then for b I believe that the scale factor is 4

and for C it is asking for the bottom side of the scaled copy not of triangle A and 4*3=12 so the bottom is 12

ok now its complete =)

4 0

3 years ago

What is a equation in slope intercept form for the line that has a slope -1 that passes through (-4,3)

aleksley [76]

slope is -1

$m=-1$

we have a point as (-4,3)

we can use slope intercept form of line

$y=mx+b$

we can plug m=-1

$y=-x+b$

now, we can plug point (-4,3)

x=-4 and y=3 and then we can find b

$3=-1*-4+b$

$b=-1$

now, we can plug back

and we get

$y=-x-1$ ............Answer

5 0

4 years ago

Read 2 more answers

Simplify: -4b^6 + (-26b^6)

DENIUS [597]

Answer:

-30 $b^{6}$

Step-by-step explanation:

-4b^6 + -24b^6 = -30b^6

7 0

3 years ago

Amelia uses 6 patches of fabric per square foot to make a blanket. How many patches of fabric will she need to make a blanket th

sweet [91]

4,320 because if you take 720 and multiply it by 6 you get your answer

8 0

3 years ago