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2 years ago

If ru is an altitude of rst find rs

Mathematics

1 answer:

Anna11 [10]2 years ago

4 0

Answer:

The correct answer is Option D. 20

Step-by-step explanation:

From the figure we get,

<RUS = 90° because RU ⊥ TS

<u>To find the value of x</u>

It is given that <RUS = 4x + 54

Therefore we can write,

4x + 54 = 90

4x = 90 - 54 = 36

x = 36/4 = 9

It is given that,

RS = 3x - 7 = 3*9 -7 = 20

Therefore the correct option is Option D . 20

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Last month, Claire's bank statement said that she overdrew her account. Her bank balance was -45.32−45.32minus, 45, point, 32 eu

masya89 [10]

Answer:

63.24 euros were deposited in the bank.

Step-by-step explanation:

Claire's bank account was overdrawn.

Last month, Initial balance in the bank account = -45.32 euros

After a month, the balance became positive i.e. 17.92 euros.

To find:

What changes were made in the account?

Solution:

The balance came to a positive value from the negative value, it means that some money was deposited in the bank account.

Let the money deposited in the bank account = $x$ euros

As per question statement:

$-45.32 + x = 17.92\\\Rightarrow x = 63.24\ euros$

8 0

2 years ago

Read 2 more answers

If y is proportional to the sqaure root of x and y equal x when x equal 5,evaluate y when x eqaul 9.

Law Incorporation [45]

Answer:

$y = 3\, \sqrt{5}$ when $x = 9$ .

Step-by-step explanation:

The question states that $y$ is proportional to $\sqrt{x}$ . In other words, there is a constant $a$ ( $a \ne 0$ ) such that $y = a\, \sqrt{x}$ for all $x \ge 0$ .

The question also states that $y = x$ when $x = 5$ . Make use of this equality to find the value of $a$ .

Since $x = 5$ and $y = x$ , it must be true that $y = 5$ . Substitute $x = 5\!$ and $y = 5\!$ into the equation $y = a\, \sqrt{x}$ and solve for $a$ :