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Hoochie [10]
3 years ago
8

Was i right on the first 2? Please correct them if i'm wrong

Mathematics
1 answer:
Blababa [14]3 years ago
7 0
All correct!!! Good job!!! ^^
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A function f(x)f(x) is graphed on the coordinate plane.
Effectus [21]

<u>Answer</u>

-4x - 2


<u>Explanation</u>

To get the function needed, first calculate the slope of the graph.

slope = (change in y) / (change in x)

          = (2 - -2)/(-1 - 0)

          = 4/-1

           = -4

Now use one of the point (-1, 2) in the graph and a general point (x,y) to find the function.

-4 = (y - 2)/(x - -1)

-4(x + 1) = y - 2

-4x - 4 = y - 2

y = -4x - 4 + 2

  = -4x - 2


∴ f(x) =  -4x - 2

6 0
3 years ago
How can csc^2-cot^2 = 1?
Softa [21]

ANSWER

By simplifying the left hand side using the Pythagorean Identity.

EXPLANATION

The given identity is

\csc^{2} (x) -  \cot^{2} (x) = 1

Take the left hand side and simplify to get the right hand side.

\csc^{2} (x) -  \cot^{2} (x) =  \frac{1}{\sin^{2} (x)}  - \frac{ \cos^{2} (x)}{\sin^{2} (x)}

Collect LCM for the denominators.

\csc^{2} (x) -  \cot^{2} (x) =  \frac{1 -  \cos^{2} (x)}{\sin^{2} (x)}

Recall the Pythagorean Identity.

\cos^{2} (x) +  \sin^{2} (x) = 1

This implies that:

1 -  \cos^{2} (x) =  \sin^{2} (x)

We substitute this to get,

\csc^{2} (x) -  \cot^{2} (x) =  \frac{\sin^{2} (x)}{\sin^{2} (x)}

\csc^{2} (x) -  \cot^{2} (x) = 1

6 0
3 years ago
What shape is a rhombus related to and why​
Ksju [112]
A rhombus is related to a “Parallelogram”

Why? - because it fulfills the requirements of a parallelogram: a quadrilateral with two pairs of parallel sides. It goes above and beyond that to also have four equal-length sides, but it is still a type of parallelogram.

hope this helped <3
8 0
3 years ago
What is the area of the trapezoid
topjm [15]

Answer:

24 in

Step-by-step explanation:

Add up all the inches. voila!

5 0
3 years ago
Read 2 more answers
Danny scored 10 points in the first round of a game. he then lost 20 points in the second round. in the final round he earned 40
Black_prince [1.1K]
Danny's score at the end of the game is 30 because:
We started our with 10 points. 
He loses 20 points, which brings him down to -10 points. 
In the final round he earned 40 points. 40 minus the negative ten points gives us an answer of 30 points.
6 0
3 years ago
Read 2 more answers
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