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victus00 [196]
3 years ago
7

Beginning at 8:30 A.M., tours of the National Capitol leave every 15 minutes. Tours for the White House leave every 20 minutes.

How often do the tours leave at the same time?
Mathematics
1 answer:
zhenek [66]3 years ago
5 0
The leave at the same time every hour
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Please don’t skip!!! I need help!!
horsena [70]
P = [60] cm

Explanation:

6.5 cm + 6.5 cm + 7.5 cm + 7.5 cm + 7.5 cm + 7.5 cm + 8.5 cm + 8.5 cm
7 0
3 years ago
True or false: sec^-1(0.5) is undefined. explain your answer
ICE Princess25 [194]

Here we get the statement:

"sec^-1(0.5) is undefined"

And we want to see if this is true or false, so let's use the properties that we know to find that this is false.

Remember that the sec function is defined as:

sec(x) = \frac{1}{cos(x)}

Then we will have:

sec^{-1}(x) = (\frac{1}{cos(x)})^{-1} =  cos(x)

Then is really trivial to see that:

sec^{-1}(0.5) =  cos(0.5) = 0.878

Then we can conclude that the function is not undefined at 0.5, so the statement is false.

Below you can see the graph of the given function, and you will see that it is never undefined.

If you want to learn more, you can read:

brainly.com/question/16453813

6 0
3 years ago
Read 2 more answers
9/2h = -1 what does h equal too?
Sergeeva-Olga [200]

\textbf {The answer is h = -2/9.}

\textrm {We are given that 9/2h = -1. Hence, divide by 9/2 on both sides.}

\frac{9/2h}{9/2} = \frac{-1}{9/2}

\boxed {h = -\frac{2}{9}}

5 0
1 year ago
Read 2 more answers
Which number line shows a fraction equivalent to 4.5?
Alchen [17]
The forth picture is the one that represents 4.5
3 0
3 years ago
Read 2 more answers
The equation of a line with slope m= - 1/4 and including point (-3, 5) is y= - 1/4 x - 4.
raketka [301]

Answer:

False

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

here m = - \frac{1}{4}, hence

y = - \frac{1}{4} x + c ← is the partial equation

to find c substitute (- 3, 5) into the partial equation

5 = \frac{3}{4} + c ⇒ c = \frac{17}{4}

y = - \frac{1}{4} x + \frac{17}{4} ← equation of line


8 0
3 years ago
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