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stich3 [128]
3 years ago
9

SOLVE:6x (2x – y) + 7y (2x – y)​

Mathematics
1 answer:
Tanya [424]3 years ago
5 0

Step-by-step explanation:

I Think this can help. If there is any confusion I will help you.

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Prove that the Greatest Integer Function f: R -> R given by f(x) = [x], is neither one-once nor onto, where [x] denotes the g
Karo-lina-s [1.5K]
F: R → R is given by, f(x) = [x]
It is seen that f(1.2) = [1.2] = 1, f(1.9) = [1.9] = 1
So, f(1.2) = f(1.9), but 1.2 ≠ 1.9
f is not one-one

Now, consider 0.7 ε R
It is known that f(x) = [x] is always an integer. Thus, there does not exist any element x ε R such that f(x) = 0.7

So, f is not onto
Hence, the greatest integer function is neither one-one nor onto.

The answer was quite complicated but I hope it will help you.
8 0
4 years ago
Jeri is 3 years younger than Laura, whose age is x. How old is Jeri? x - 3 yrs old x + 3 yrs old 3x yrs old
laiz [17]

Answer:

X-3 yrs old

Step-by-step explanation:

Take Laura=X

Since Laura is X years old and Jeri is 3 years younger then Jeri's age = Laura's age- 3years so,

Jeri's age= X-3

8 0
3 years ago
A salesperson is guaranteed $450 per week plus a 4% commission on all sales.
solong [7]
p\%=\dfrac{p}{100}\\\\4\%=\dfrac{4}{100}=0.04\\\\4\%\ of\ s\ dollars\ of\ sales\to0.04s\\\\An\ equation:\\\\\boxed{P=0.04s+450}
5 0
4 years ago
7/11÷2/5=<br>A.1/11<br>B.22/35<br>C.5/6<br>D.35/22
Tamiku [17]
The answer's D. 35/22

Well i have to write 20 words so dont mind this part
7 0
3 years ago
In a mathematics class, half of the students scored 87 on an achievement test.
Nimfa-mama [501]

The complete question is:

In a mathematics class, half of the students scored 87 on an achievement test. With the exception of a few students who scored 52, the remaining students scored 71. Which of the following statements is true about the distribution of scores?

A. The mean is less than the median.

B. The mean and the median is the same.

C. The mean is greater than the mode.

D. The mean is greater than the median.

Statistics exist in the analysis of collection, analysis, interpretation, and presentation of data or into discipline to collect and summarize the data.

Therefore, the correct answer is option A. The mean is less than the median.

<h3>What are statistics?</h3>

Statistics exist in the analysis of collection, analysis, interpretation, and presentation of data or into discipline to collect and summarize the data.

Half the students scored 87.

The next highest score exists at 71.

Then the median will be (71+ 87) / 2 = 79

A few students scored 52, so the mean exists a little lower than the mean of 71 and 87.

Therefore, the correct answer is option A. The mean is less than the median.

To learn more about statistics refer to:

brainly.com/question/10951564

#SPJ9

3 0
2 years ago
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