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Anton [14]
4 years ago
10

Are these answers correct?

Mathematics
2 answers:
Mars2501 [29]4 years ago
7 0
Very good job! They are all correct and it shows how you got the answer! ^_^ 100%
kherson [118]4 years ago
4 0
All of them is correct very good job
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Quincy says that 3 is a good estimate for 3.4 X 0.09, is he correct? Why?
lord [1]
<span>Quincy says that 3 is a good estimate for 3.4 X 0.09, is she correct? Why?
When we say estimates meaning it is not the exact answer but close to what is the exact.
Now, if Quincy estimated 3 as the product of 3.4 * .09, then let’s check if she has the correct estimates.
=> 3.4 estimates is 3
=> 0.09 estimates is 0.1
Now the answer is 0.3 and not 3.
Thus, Quincy’s estimate is wrong.</span>



4 0
3 years ago
A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin
VladimirAG [237]
This is a proportion problem that involves cross-multiplication
Set your problem up like so:
\frac{x}{2,000} = \frac{3}{5}

Now cross multiply
2,000 x 3 = 6,000
now you're left with 5x = 6,000
Now divide by 5 on both sides
Answer is 1,200
7 0
3 years ago
Which expression equals (7y) ?<br> Р 7yi<br> Ту:<br> 1<br> 73 уз<br> 1<br> 0<br> 73 уз
Gennadij [26K]

Answer:

??????????

Step-by-step explanation:

???????????

what is this

7 0
3 years ago
1.The revenue for an amusement park can be modeled by R(x) = 80x -0.04x' where x
lorasvet [3.4K]

Answer:

i believe its b because this sounds familiar

Step-by-step explanation:

5 0
3 years ago
Flip a coin 5 times. What is the probability that heads never occurs twice in a row?
N76 [4]

Answer:

\frac{15}{32}

Step-by-step explanation:

Given that a coin is flipped 5 times. Let us assume it is a fair coin with probability for head or tail equally likely and hence 0.50

Sample space would have 2^5 = 32 possibilities

For two heads never occurring in a row favourable outcomes are

HTTTT,HTTHT,HTTTH,  HTHTH,  HTHTT, THTHT, THTTT, THTTH, TTHTH, TTHTT, TTTHT, TTTTH, TTTTT, TTTTH

Hence probability =

Favorable outcomes/Total outcomes=

\frac{15}{32}

6 0
3 years ago
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