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Salsk061 [2.6K]
2 years ago
12

What is vertical line test is and how it is used?

Mathematics
1 answer:
laila [671]2 years ago
5 0

Answer:

The vertical line test is a visual test used to determine whether or not a graph is a function. To perform this test, simply draw a straight vertical line multiple times on different parts of the graph.

If a vertical line intersects with the graph at one point, then it's a function.

If a vertical line intersects with the graph at multiple points, then it's not a function.

Examples:

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A bag with 8 marbles is shown below. (2 marbles are yellow, 3 are red, and 3 are blue.) A marble is chosen from the bag at rando
Andreas93 [3]

Answer:

\frac{5}{8}

Step-by-step explanation:

Hi there!

We're given that there are 8 marbles in total. 2 marbles are yellow and 3 are red, making the number of red AND yellow marbles 5 (2+3=5)

Because 5 out of the 8 marbles are yellow or red, the probability of choosing one of them is \frac{5}{8}.

I hope this helps!

7 0
3 years ago
Read 2 more answers
This last one I need help on too
ExtremeBDS [4]

Answer:

x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}

Step-by-step explanation:

simplify \frac{-3}{x-2} by putting the negative sign on the outside. \frac{2x}{x-1}-\frac{2x-5}{x^2-3x+2}=-\frac{3}{x-2}

find the LCM of the denominators. It is (x-1)(x-2). Multiply by the LCM:

\frac{2x}{x-1}\left(x-1\right)\left(x-2\right)-\frac{2x-5}{x^2-3x+2}\left(x-1\right)\left(x-2\right)=-\frac{3}{x-2}\left(x-1\right)\left(x-2\right)

Simplify:

2x\left(x-2\right)-\left(2x-5\right)=-3\left(x-1\right)

solve: x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}

3 0
3 years ago
A roll of quarters is shaped like a cylinder and contains 40 each quarter has a thickness of 1.75 and a diameter of 24.26 mm Wha
jarptica [38.1K]

Answer:

D) 32,357mm^3

Step-by-step explanation:

Given

Quarters = 40

Thickness = 1.75mm

diameter = 24.26mm

First, we calculate the volume of 1 roll.

The volume of the cylinder is:

V = \pi r^2h

Where

r = \frac{1}{2} * diameter

r = \frac{1}{2} * 24.26mm

r = 12.13mm

And the thickness represents the height.

So:

The volume is:

V = 3.142 * 12.13^2 * 1.75

V = 809.03mm^3

The volume of the 40 is:

Roll= 40 * 809.03mm^3

Roll=32361.20mm^3

The closest option is (d):

7 0
3 years ago
A training company provides classroom and online instruction to hundreds of people per month. As part of their training program
Lynna [10]

Answer:

According to the sample data, we can claim that the current satisfaction rate is different from last year's.

Step-by-step explanation:

The explanation is in the picture.

3 0
3 years ago
Pls help this is probably super easy but not for me
san4es73 [151]

Answer:

A.    29 feet

Step-by-step explanation:

Use cos to find the hypotenuse

cos  = adj/hp

0.64 = 20/hyp

hyp = 20/0.64

hyp = 31.25

---------------------------

Use Pythagorean Theorem to find the height of tree above eyes

a² + b² = c²

a² + 20² = 31.25²

a² = 31.25² - 20²

a² = 576.5625

a = 24  (to the nearest foot)

-------------------------------

Finally add in the eye height

h = 24 + 5

h = 29 feet

3 0
2 years ago
Read 2 more answers
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