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Kryger [21]
3 years ago
9

keiko has seven colors of lanyard. she uses three different colord to make a keychain. how many different combiantions can she c

hoose?
Mathematics
2 answers:
ICE Princess25 [194]3 years ago
8 0
So in order to  answer you´re question i´m going to put every single convination on here right now (as numbers instead of colors from 1 to 7)
123
124
125
126
127
134
135
136
137
145
146
147
156
157
167
234
235
236
237
245
246
247
256
257
267
345
346
347
356
357
367
456
457
467
567
so the answer to you´re question is 36
i hope i helped
Drupady [299]3 years ago
7 0
She can make 12 different combinations.
If she used three different colors for the keychain, there's still 4 other colors left.
4 x 3 = 12
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Help me please thankyou
Aloiza [94]

Ask your parents about it if they didn't help you can copy mine,

Well I asked my parents about they told me that around their age there weren't lots of facilities they even rarely saw transportation facilities like cars and bikes there were no proper internet facilities e.t.c

When I said them what were the changes in the last 25 years they said there were drastic changes including social, economic, science, transportation, health e.t.c and many more

4 0
2 years ago
HELP PLEASE 10 POINTS!!!!!!!!!!!
LiRa [457]

Answer:

0.0000000642 = 6.42 \times  {10}^{ - 8}

I hope I helped you^_^

5 0
3 years ago
Read 2 more answers
Answer the questions below about the quadratic function.
Korolek [52]

Given the function f(x)=3x^2-18x+23. The above function can be written as

f(x)=3x^2-18x+23\\ f(x)=3(x^2-6x)+23\\ f(x)=3(x^2-6x+9-9)+23\\ f(x)=3(x-3)^2-27+23\\ f(x)=3(x-3)^2-4

a)Now, the function f(x)=3(x-3)^2-4 has minimum value since the coefficient of (x-3)^2 is 3>0.

b) The minimum value of the function occurs at x=3 and its value is

f(3)=3(3-3)^2-4 =-4

c)The minimum value of the function occurs at x=3.

6 0
3 years ago
A length of 5 cm on a map represents a distance of 2km on the ground .What length on the map represents an actual distance of 80
kipiarov [429]

Answer:

which means easily we understand by SI UNIT

0.05m=2kM

800M=???, USE cris cros

Step-by-step explanation:

finally answer will be 0.000032

4 0
2 years ago
Read 2 more answers
What is/are the classification of functions that has its inverse?
UNO [17]

Answer:

Invertible functions

Step-by-step explanation:

An inverse of a function is one that reverses the operation of the function such that the result of the function on a variable, is reversed back to the initial variable

Therefore, when we have the the result of the function, f on x as y given as follows;

f(x) = y

The inverse of the function, g on the result, y gives the initial variable, x as follows;

g(y) = x

Example of invertible functions includes;

f(x) = x²

An example of a non-invertible function includes;

f(x) = 2·x².

4 0
3 years ago
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