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katovenus [111]
3 years ago
5

Sandy says the graph could represent a person's walk from home to school. Why is Sandy's analysis incorrect?

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
7 0

Answer:

C

Step-by-step explanation:

C:  The graph shows that there is no movement for the first few minutes, and then the distance from home decreases (rather than increases).

dezoksy [38]3 years ago
4 0
The answer to the question is c
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Can someone answer this question please?
Sever21 [200]

Answer:

Therefore we need 475 milliliter of Compound A

and we need 760 milliliter of compound B.

Step-by-step explanation:

i) let x be the number of milliliters of compound A

ii) let y be the number of milliliters of compound B

iii) It is also given that x  = \frac{5}{8} y

iv) therefore x  + y = 1235 milliliters

v) therefore  \frac{5}{8} y + y = \frac{13}{8}y = 1235 \Rightarrow y = 760 milliliter

vi) therefore x  = 1235 - 760 = 475 milliliter

Therefore we need 475 milliliter of Compound A

and we need 760 milliliter of compound B.

3 0
3 years ago
Can you find a rational number that is exactly √2<br><br>​
Gnom [1K]

9514 1404 393

Answer:

  1. no, √2 is irrational
  2. 7/5, 99/70, 19601/13860, any truncation of the decimal value

Step-by-step explanation:

1.√2 is not the square root of a perfect square integer, so is irrational. There is no rational number that is exactly √2.

The proof usually looks something like this. Let p/q represent the reduced square root. Then 2 = p²/q², or 2q² = p², which means p must be even. If p is even, then p² will have at least 2 factors of 2. This requires that q² be even, hence q must be even. This contradicts our assumption that p/q is a reduced fraction, so there cannot be any p/q that is equal to 2.

__

2. Any truncation or rounding of the decimal representation of √2 will be a rational number: 1.4, 1.41, 1.414, and so on. In addition, there are some fractions that represent √2 fairly well. A couple are 99/70 and 19601/13860.

Additional fractions can be found by evaluating the continued fraction ...

  1 +1/(2 +1/(2 +1/(2+ ...)))

at some level of truncation. A few of these values are 7/5, 17/12, 41/29, 99/70, 239/169, 577/408.

The Babylonian method can also be used to find rational approximations. If you start with <em>any</em> rational approximation p/q, then a <em>better</em> approximation will be (2q² +p²)/(2pq). This formulation can be iterated as many times as you like. It very rapidly converges to very good approximations.

8 0
3 years ago
5.73 Evaluate the expression for 2 22 2. I will give brainliest ​
Sonbull [250]

Answer:

  • 10

Step-by-step explanation:

  • 5·x³/x² = 5·x = 5·2 = 10
5 0
3 years ago
What ethical issues have been raised by the scientific community's commitment to ensuring that experimental treatments are not
e-lub [12.9K]

Answer:

They include;

1. Fewer chances of determining how effective the treatment plan would be.

2. Inability of every patient to access the experimental treatment.

3. Difficulties in making knowledgeable decisions on the treatment plan.

4. Determining that the experimental treatments are offered with the right motive.

Step-by-step explanation:

In medical treatment administration, it is standard practice that drugs undergo clinical trials on test animals before they are administered to patients. However, some sicknesses are without known drugs for treatment or may have drugs that are still undergoing experiments and trials. In such cases, patients may want to be treated with experimental drugs.

Ethical issues such as the above-listed can arise from this. The foremost of them all is the fact that the treatment might prove ineffective thus causing more problems to the patient.

8 0
3 years ago
Simplify. 1/2−3(12+1)2 Enter your answer, as a simplified fraction, in the box.
lisov135 [29]

Answer: -506.5 or -253.25

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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