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4 years ago

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]

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

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

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 relative frequency is given by the number of desired outcomes, also called frequency, divided by the number of total outcomes, 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. 4x4 x 4x4x4

kvv77 [185]

Answer:

1,024 is the answer

6 0

2 years ago