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Phantasy [73]
3 years ago
13

Whydo we usequartz clock​

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0

Answer:

because see a time

Step-by-step explanation:

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Is (2,5),(3,6),(6,9) a function
uranmaximum [27]

Answer:

Yes it is in fact a function.

Step-by-step explanation:

Since there is one value of y for every value of x in the question

8 0
2 years ago
Rob is saving to buy a new MP3 player. For every $15 he earns babysitting, he saves $10.On Saturday, Rob earned $45 babysitting.
Dmitrij [34]

Answer:

$30

Step-by-step explanation:

Okay, so we can solve this problem using fractions; $10 saved for every $15 made..

10/15=x/45

Using cross multiplication we can conclude 10*45=15x

450=15x

x=30

Hope this helps :)

7 0
2 years ago
Show all work to factor x^4-10x^2+9 completely
dimaraw [331]

Answer:

(x^{2}-9)(x^{2} -1)

Step-by-step explanation:

Step 1: Find what adds to _ and multiples to_

It needs to multiple to the 'c' term or 9

It needs to add to the 'b' term or -10

Step 2: Find the numbers

We know -9 and -1 make 10 and multiple to 9

-9 x -1 = 9

-9 + (-1) + -10

Step 3: Write equation in form a(x-r)(x-s)

a = 1

r = -9

s = -1

Plug in the equation to get the factored form of the equation:

(x^{2}-9)(x^{2} -1)

Therefore the factored form of the equation is (x^{2}-9)(x^{2} -1)

7 0
4 years ago
What is the value of the underline digit 72
bogdanovich [222]
The value of the 7 is 70 and the value of the 2 is 2.
5 0
4 years ago
Read 2 more answers
(a) We have three standard 6-sided dice, colored red, yellow, and green. In how many ways can we roll them to get a sum of 9? Th
Kisachek [45]
I believe that there are 23 different ways to get a total of 20. Then we need to find the number of ways to get each of the 23 different ways. For instance, one way is 6 6 1-1-1-1- 1-1-1-1: 101 / (21-8) = 45 (different ways to get this result) 10 different dice are rolled, giving the 101 in the numerator since the 6 is used twice, divide by 21, since the 1 is used 8 times, divide by 8! Etc., etc., etc. Final answers, add all these results together. I'm not sure about part B! I'm sorry!!!
6 0
3 years ago
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