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4 years ago

Need help my teacher is going to be really mad

Mathematics

1 answer:

neonofarm [45]4 years ago

5 0

This is how I figure these type of questions out you can draw a circle on the J,K,L the trace it to make a triangle it should be less then 90 degrees if not then you might’ve traced it wrong.

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3 years ago

The radius of a circle is 10 meters. What is the angle measure of an arc 3 meters long?

Anuta_ua [19.1K]

Answer:

Ф = 0.3 radians

Step-by-step explanation:

The arc length formula is s = rФ. Solving for the angle measure Ф, we get:

Ф = s/r

and so with r = 10 m and s = 3 m, we get Ф = 3 m / 10 m = Ф = 0.3 radians

3 0

3 years ago

Hannah babysits to earn money. She charges $6.50 to babysit for the first hour. She charges $5.75 for each additional hour. Let

posledela

$6.50 + $5.75n hope this helps

6 0

3 years ago

Which expression is equivalent to - 3 x (4/- 5)?

USPshnik [31]

C expression equivalent to -3*(4/-5)

5 0

3 years ago

F(x)= square root of x-5. find f-1 (x) and it’s domain

gayaneshka [121]

Answer:

Option B.

Step-by-step explanation:

Inverse function:

Suppose we have a function y = f(x). To find the inverse function, we exchange x and y on the original function, and then isolate y.

The domain of the inverse function(x values) is the range of the original function(y values).

Original function:

$f(x) = \sqrt{x} - 5$

Domain is $[0,\infty)$ , and when $x = 0, f(x) = -5$ . So the range is $[-5,\infty]$ , that is, $y \geq -5$

Inverse function:

$y = \sqrt{x} - 5$

Exchanging x and y

$x = \sqrt{y} - 5$

$\sqrt{y} = x + 5$

$(\sqrt{y})^2 = (x+5)^2$

$y = (x+5)^2$

The inverse function is $f^{-1}(x) = (x+5)^2$

Domain:

Range of the original function is $y \geq -5$ , so the domain of the inverse function is $x \geq -5$ . The correct answer is given by option B.

7 0

3 years ago