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FinnZ [79.3K]
4 years ago
11

I need help to solve this

Mathematics
2 answers:
mash [69]4 years ago
5 0
I believe the answer is C but i am not sure
ludmilkaskok [199]4 years ago
5 0
The answer is C. 855-750 is 105, and that number divided by 15 is 7, which is how long the sand was falling
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Use your counting principles to determine each of the following.
AlexFokin [52]
<span>a) Washington state license plates for cars consist of 3 numbers followed by 3 letters. How many license plates are there? Do not consider vanity plates or other oddities. 

That is 
C = 10 * 10 * 10 * 26 * 26 * 26
C = 17,576,000

</span><span>b) Some lottery tickets consist of six numbers each ranging from 1 to 40. If repeated numbers are permitted, how many different tickets are there?

C = 40 ^ 6
C = 4,096,000,000

</span>c) How many telephone numbers are there in the 509 area code? Telephone numbers may not start with the number 0 or 1. They also must not begin with 911 or 555. Do not consider other special circumstances



4 0
3 years ago
What is the value of 2x 4x-3x-6x when x =3
Kruka [31]
2x + 4x - 3x - 6x = -3x

When x = 3,
-3x = -3(3) = -9
7 0
3 years ago
The relative frequencies for a set of data are shown in the table below.
olga_2 [115]

Using the relative frequency concept, it is found that the data value of 2 occurs with a frequency of 4.

What is a relative frequency?

  • A <em>relative frequency</em> is given by the <u>number of desired outcomes, also called frequency, divided by the number of total outcomes</u>, that is:

r_f = \frac{D}{T}

In this problem:

  • There are 25 data values, hence T = 25.
  • The relative frequency of data value 2 is of 0.16, hence r_f = 0.16.

Then:

r_f = \frac{D}{T}

0.16 = \frac{D}{25}

D = 0.16(25)

D = 4

The data value of 2 occurs with a frequency of 4.

You can learn more about relative frequency at brainly.com/question/25971978

4 0
3 years ago
If the product of the two slopes of two lines equals -1, then the lines are ?
VladimirAG [237]

\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{\cfrac{a}{b}}\qquad \qquad \qquad \stackrel{reciprocal}{\cfrac{b}{a}}\qquad \stackrel{negative~reciprocal}{-\cfrac{b}{a}}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \left( \cfrac{a}{b} \right)\left( -\cfrac{b}{a} \right)=-1~\hfill

7 0
3 years ago
Write each as power form. <br>4x4 x 4x4x4​
kvv77 [185]

Answer:

1,024 is the answer

6 0
2 years ago
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