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4 years ago

Can a difference of two square roots equal a negative number?

Mathematics

1 answer:

Scrat [10]4 years ago

5 0

Answer:

No it cannot unless one or both of the square roots are negative

Step-by-step explanation:

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What is the slope of the line graphed below (3,6) (0,-1)

Eva8 [605]

Answer:

Step-by-step explanation:

3 0

3 years ago

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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

Worth 11 points please help me

saw5 [17]

multiply the x and y coordinates in P and Tand equate it the right hand side x and y coordinates respectively.

3 0

3 years ago

How do I write an explicit formula for this sequence? 2, 6, 18, 54, 162, ... I already know the common difference is x3.

uranmaximum [27]

If the common difference is 3 all you need to do is:
an=a1 - d(n-1)
2 - 3d + 3
Explicit rule = -3n + 5

6 0

4 years ago

Judy lies on the ground 45 feet from her tent. Both the top of the tent

stellarik [79]

Answer:

According to my diagram,

h/445 = 10/45

h = 10(445)/45

Step-by-step explanation:

please mark me as brainlist

3 0

3 years ago

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