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2 years ago

6

How can you prove that a conjecture if false?

1 answer:

Fittoniya [83]2 years ago

4 0

Answer:

To show that a conjecture is false, you have to find only one example in which the conjecture is not true. So an example could be a drawing, a statement, or a number.

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LiRa [457]

There is 3600 seconds per hour.
Multiply the speed per second by 3600 to get the speed in miles per hour then convert to kilometer/hour.

4.9 * 3600 = 17,640 miles per hour

17,640 x 1.6 = 28,224 kilometers per hour

8 0

2 years ago

Robert used 34 grams of iron filings in his second experiment. This is 16 grams more than twice the number of grams he used in h

sweet-ann [11.9K]

34=2x + 16

18=2x

x=9

Robert used 9 grams of iron filings in his first experiment.

3 0

2 years ago

Is is square root of 1.6875 a rational number

mamaluj [8]

<em><u>Question:</u></em>

Is square root of 1.6875 a rational number ?

<em><u>Answer:</u></em>

Square root of 1.6875 a rational number is not a rational number

<em><u>Solution:</u></em>

Given that we have to find square root of 1.6875 and determine if it is rational number or not

Let us first find square root of 1.6875

$\sqrt{1.6875} = 1.29903810568$

Let us understand about rational number

A rational number is a number that can be expressed as a fraction (ratio) in the form $\frac{p}{q}$ where p and q are integers and q is not zero.

When a rational number fraction is divided to form a decimal value, it becomes a terminating or repeating decimal.

So the number 1.29903810568 is not a rational number

<em><u>In other words we can say,</u></em>

Only the square roots of square numbers are rational. Here 1.6875 is not a perfect square. So it is not rational number

4 0

2 years ago

If the measure of 4 is equivalent to (2x-7) what is the value of x

mart [117]

Answer:

the value of x would be 5.5

Step-by-step explanation:

This is true by multiplying 2 by 5 and a half

4 0

3 years ago

Read 2 more answers

2 1/2 + 3<br> As a fraction or a mixed number in simplest form. please Thankss ;p

puteri [66]

5 1/2 i think is the answer

5 0

2 years ago

Read 2 more answers