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3 years ago

Point D has the same x-coordinate as the y-coordinate as B same same y-coordinate as the x-coordinate of point A.

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

8 0

Answer:

Need more information to answer, do you have a graph?

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Identify which of the following statement(s) is always true?

julia-pushkina [17]

Answer:

Statement 3

Step-by-step explanation:

Statement 1: For any positive integer n, the square root of n is irrational.

Suppose n = 25 (25 is positive integer), then

$\sqrt{n}=\sqrt{25}=5$

Since 5 is rational number, this statement is false.

Statement 2: If n is a positive integer, the square root of n is rational.

Suppose n = 8 (8 is positive integer), then

$\sqrt{n}=\sqrt{8}=2\sqrt{2}$

Since $2\sqrt{2}$ is irrational number, this statement is false.

Statement 3: If n is a positive integer, the square root of n is rational if and only if n is a perfect square.

If n is a positive integer and square root of n is rational, then n is a perfect square.

If n is a positive integer and n is a perfect square, then square root of n is a rational number.

This statement is true.

8 0

3 years ago

A new car falls in value by 25% in a year. After a year, it's worth £ 9 600. Find the price of the car when it was new.

Yanka [14]

After a year, the car price dropped to £9600, already dropped by 25%, well, 100% - 25% is just 75%, therefore, £9600 is really just the 75% of the original price.

now, let's say "x" is the original price and therefor the 100%, what is it?

 $\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
9600&75\\
x&100
\end{array}\implies \cfrac{9600}{x}=\cfrac{75}{100}\implies \cfrac{9600\cdot 100}{75}=x$

4 0

3 years ago

Solve for x: 80.375x^2 + 1505 = 6^x + 1505

Anvisha [2.4K]

I think the answer is 180.

5 0

3 years ago

Games at a carnival cost $3. prizes awarded to winners cost $145.65. how many games must be played to make $50

stich3 [128]

Answer:

Step-by-step explanation:

3×1405 and $.65

8 0

3 years ago

If b+c-a/a, c+a-b/CA are in A.P., prove that a, b, c are in Н.Р.

SOVA2 [1]

Answer:I love thee fact that I am a straight a Student but I don't wanna help you dumb people

Step-by-step explanation:

3 0

3 years ago