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liberstina [14]
3 years ago
6

You forgot the last two digits of your friends phone number. You know that the next to last digit is 4 or 5, and the last digit

is an odd number. If you guess the phone number what is the probability that you will be correct?
Mathematics
2 answers:
Irina18 [472]3 years ago
7 0
If you did the math right there is a 90% sure that you have got it right and a 10% that you have not
ehidna [41]3 years ago
4 0

Answer:

1/10 or 10%

Step-by-step explanation:

There are a total of five odd digits we can use (1,3,5,7,9). And we know the second to last digit is a four or a five. That means there is a total of 10 combinations (5 for each secondary digit). A guess would give you one of those ten combinations. Giving you a probability of 1/10 or 10%.

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I need this to be specific and quick! 35 points!
g100num [7]

D) these two figures are similar they don't look similar at first because the X'Z'Y' is more upwards. But they are congruent meaning they are similar or exactly the same almost. This basically tells me that I need to use translation.

E) I can use reflection to get XYZ into X'Y'Z' by reflecting it across the x-axis. I could also use translation and move it up 6 and then move it to the right.

C) The last one I could use is rotation and move it around around 45* or something close to the the other one.

7 0
3 years ago
V is the midpoint of UW. If UV = x + 2 and VW = 2x, what is VW?
Elan Coil [88]

Answer:

8 units

Step-by-step explanation:

x + 2 = 2x

2 = 2x - x

x = 2

uW = 2(2+2) = 8

3 0
2 years ago
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Help Me please i need some help :)
DanielleElmas [232]
A=45
Explanation:
A= a+b/2*h
7 0
2 years ago
Find the mean salary of 60 workers of a factory from the following table.
timama [110]

Answer:

To find the mean (average) all the # of workers and divide it by the data points. One way you can do this is through a calculator or even Excel spreadsheet.

Step-by-step explanation:

1) Add all them up

2) Divide them by the # of data points

4 0
3 years ago
Pls help me
masha68 [24]

Answer:

Step-by-step explanation:

Volume of the figure = Base area * height

Base area:

Base area = area of trpezium + area of triangle

<u />

<u>Trapezium:</u>

a, b area the length of parallel sides and h is the height of trapezium.

a = 8 m ; b =  5 m & h = 3 m

\boxed{ \text{ Area of trapezium = $\dfrac{(a +b)*h}{2} $}}

                               =\dfrac{(8+5)*3}{2}\\\\\\=\dfrac{13*3}{2}\\\\\\= \dfrac{39}{2}\\\\\\= 19.5 \ m^{2}

<u>Triangle:</u>

height = 4 m & base = 8 m

\boxed{\text{Area of triangle =$\dfrac{1}{2}*base*height$}}

                           =\dfrac{1}{2}*8*4\\\\\\= 4*4\\\\= 16 \ m^{2}

Base area = 19.5 + 16

                 = 35.5 m²

Volume of the figure = Base area * height

                                     = 35.5 * 14

                                      = 497 m³

8 0
2 years ago
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