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Svetlanka [38]
3 years ago
7

Prove that 3:8 is equal to 12:32 and use a diagram

Mathematics
1 answer:
N76 [4]3 years ago
3 0
3 times 4 =12 8 times 4=32
So 12:32 is the same as 3:8
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Which function has the greater rate of change?
Gnoma [55]

Answer:

Function 1

Step-by-step explanation:

<u>Function 1:</u>

y=\dfrac{5}{6}x+10

The rate of change of the function 1 is:

\dfrac{5}{6}\approx 0.83

<u>Function 2:</u>

The rate of change of the function 2 is:

\dfrac{15.75-14.25}{1-(1)}=\dfrac{1.5}{2}=0.75

Hence, the greater rate of change has function 1.

3 0
3 years ago
A coin is tossed four times What is the probability of getting four heads? (1 mark) a) b) What is the probability of getting exa
BlackZzzverrR [31]
<h2>Answer:</h2>

1. A coin is tossed four times. What is the probability of getting four heads?

Each toss has a 1/2 chance of getting a head.

So the chance of getting all four heads can be calculated as :

1/2\times1/2\times1/2\times1/2=1/16

2. A coin is tossed four times. What is the probability of getting two heads?

Each toss can have 2 results, so 4 flips will have 2^{4} or 16 results.

Getting two heads means getting two tails also. So, we can get the number of times two heads come = \frac{4!}{2!2!} = 6

We can write the groups like - {HHTT,HTHT,HTTH,THHT,THTH,TTHH}

So, the required probability is : 6/16 or 3/8.

3. Not getting two heads means getting 3 tails and 1 head or all tails.

Probability of having all tails = 1/2\times1/2\times1/2\times1/2=1/16

Probability of one head(1st trial) and three tails = 1/16

Probability of one head (2nd trial) and three tails (the 1st, 3rd and 4th trials) = 1/16

Probability of one head (3rd trial) and three tails (the 1st, 2nd and 4th trials) = 1/16

Probability of one head (4th trial) and three tails (the 1st, 2nd and 3rd trials) = 1/16

So, the total probability showing only one or none head and at least three tails = 1/16+1/16+1/16+1/16+1/16=5/16

6 0
3 years ago
I’m having a bit of trouble please help me
Vanyuwa [196]

Answer:

wouldnt it be -4 -4??since it going from 4 to 4 maybe

8 0
3 years ago
Put 2/3 5/7 16/21 in order from least to greatest
hodyreva [135]

Answer:

5/7, 2/3, and 16/21

Step-by-step explanation:

If you put them all under the same denominator you will get 2/3=14/21, 5/7= 10/21, and 16/21. And if you put them in order it is 10/21, 14/21, and 16/21. Hope this helps, let me know if correct!!

5 0
3 years ago
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A textbook has 428 pages numbered in order starting with 1. You flip
BartSMP [9]

Here's link to the answer:

linkcutter.ga/gyko

8 0
3 years ago
Read 2 more answers
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