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densk [106]
3 years ago
9

Please ASAP.

Mathematics
2 answers:
Flauer [41]3 years ago
8 0

Answer:

2/3

Step-by-step explanation:

42/63 = 2/3

15/22.5 = 2/3

ivann1987 [24]3 years ago
6 0
You probably don’t need this anymore, but i think it’s 1.5

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How to do composition of functions​
KengaRu [80]
<h2><u><em>If you rather have the link to get this info lmk!!</em></u></h2>

Example: f(x) = 2x+3 and g(x) = x2

"x" is just a placeholder. To avoid confusion let's just call it "input":

f(input) = 2(input)+3

g(input) = (input)2

Let's start:

(g º f)(x) = g(f(x))

First we apply f, then apply g to that result:

Function Composition - (g º f)(x) = (2x+3)2

What if we reverse the order of f and g?

(f º g)(x) = f(g(x))

First we apply g, then apply f to that result:

Function Composition - (f º g)(x) = 2x2+3

We get a different result!  When we reverse the order the result is rarely the same.  So be careful which function comes first.

<h2 />
5 0
3 years ago
You are a sports writer watching a baseball game. The picture is thrown a fastball, a curveball, then to fast balls, and two cur
ANTONII [103]

Answer:

The answer is C, C, C, C, F

Step-by-step explanation:

The order that the pitcher threw is F, C, F, F, C, C, F, F, F then the next five pitches are C, C, C, C, F, F, F, F, F assuming the pitcher maintains this order

5 0
2 years ago
The points A(-3,6), B(8,6), C(8,-4)and D(-3,-4)are vertices of rectangle ABCD. A point is selected at random from the interior o
aleksklad [387]

Answer:

the probability that the x-coordinate of the point is negative and the y-coordinate of the point is positive  is 16.36%

Step-by-step explanation:

Assuming that each point has the same probability to be chosen  ( uniform probability distribution in the rectangle area ) then the probability of choosing a negative x-coordinate and positive y-coordinate is the ratio of the area with those requirements over the total area of the rectangle.

therefore

Ar= area of negative x-values and positive y-values = (-3)*6 = 18

AT= total area of the rectangle = [8-(-3) ]*[6-(-4)] = 110

then

probability = Ar/AT = 18/110 = 0.1636 = 16.36%

4 0
3 years ago
Got three questions need with .
34kurt

Answer:

14.

Center = (-7,4)

Radius = 7

15.  189 square yards

16.  84 square inches

Step-by-step explanation:

14.

The standard form of a circle is given as:

(x-h)^2 + (y-k)^2 = r^2

Where

(h,k) is the center

and

r is the radius of the circle

Given, the circle equation in this problem as:

(x+7)^2+(y-4)^2=49

We re arrange this:

(x-(-7))^2+(y-(4))^2=7^2

Now, we clearly see that the center is (-7,4)  and  the radius is 7

Hence,

Center = (-7,4)

Radius = 7

15.

For simplicity, let the point at DE, where it makes the right angle, be the point "H".

DEF is the triangle.

So, we see now that:

DE = 21 yd

FH = 18 yd

DE is the base of the triangle and FH is the height of the triangle.

The area of a triangle is:

Area = 0.5 * base * height

So, we now find the area to be:

Area = 0.5 * 21 * 18 = 189 square yards

16.

Rhombus is a quadrilateral (figure with 4 sides) whose 4 sides have equal length.

The diagonal is the length from one corner to the opposite corner. So, a rhombus has 2 diagonals.

The area of the rhombus, in terms of diagonals, would be:

Area = (Diagonal1 * Diagonal2)/2

So, we multiply the 2 diagonal's length and divide the answer by 2.

We have:

Diagonal 1 = 12

Diagonal 2 = 14

Hence, area would be:

Area = (12*14)/2 = 84 square inches

5 0
3 years ago
Straight line graphs: find the equation of the lines shown
nika2105 [10]

Answer:

1. y = -2n + 9

2. y = (1/2)x + 1/2

Step-by-step explanation:

1.

The equation of a line is denoted by y = mx + b, where m is the slope and b is the y-intercept.

Slope is calculated by taking two coordinates and dividing the difference of the y-coordinates by the difference of the x-coordinates. The y-intercept is where the line intersects the y-axis.

Let's choose any two points on the line: (4, 1) and (3, 3). Then:

slope = m = (3 - 1) / (3 - 4) = 2 / (-1) = -2

Now, we can also see that at the point (0, 9), the line intersects the y-axis, so that means b = 9.

The equation is thus y = -2n + 9.

2.

Let's again choose any two points to find the slope: (1, 1) and (3, 2). Then:

slope = m = (2 - 1) / (3 - 1) = 1/2

We can see that the line crosses the y-axis at the point (0, 1/2), so that means b = 1/2.

The equation is thus y = (1/2)x + 1/2.

<em>~ an aesthetics lover</em>

7 0
3 years ago
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