SOHCAHTOA can anyone help me with this

Enter the difference between the rates of change for these two functions.

Alchen [17]

Answer:

.

Step-by-step explanation:

Graph :

Choose any two points. (0 , 2) and (-1 , -2)

Rate of change = Change in y ÷ Change in x

$= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \frac{-2 - 2}{-1 - 0}\\\\= \frac{-4}{-1}\\\\= 4$

Table:

Rate of change = $\frac{-2-[-6]}{2-0}$

$= \frac{-2+6}{2}\\\\= \frac{4}{2}\\\\= 2$

4 0

2 years ago

Given: Line Segment AC ≅ Line Segment DC, ∠B≅∠D

Neporo4naja [7]

Answer:

See Below.

Step-by-step explanation:

Statements Reasons:

$1)\text{ } AC\cong DC$ Given

$2)\text{ } \angle B\cong \angle D$ Given

$3)\angle BCA \cong \angle ECD$ Vertical Angles are Congruent

$4)\text{ } \Delta ACB\cong \Delta DCE$ AAS Congruence

$5)\text{ } AB\cong DE$ CPCTC

7 0

3 years ago

What does the quadratic function f(x)=x^2-10x+9 look like when it is rewritten in the form f(x) = a (x-h) + k

Tatiana [17]

ANSWER

When $f(x)=x^2-10x+9$ is written in the form $f(x)=a(x-h)^2+k$ , it looks like $f(x)=(x-5)^2-16$

EXPLANATION

To write $f(x)=x^2-10x+9$ in the form $f(x)=a(x-h)^2+k$ , we have to complete the squares.

We add and subtract half the coefficient of $x$ square.

$f(x)=x^2-10x+(-5)^2-(-5)^2+9$

The first three terms of the function is now a perfect square.

$f(x)=(x-5)^2-25+9$

We now simplify rto obtain,

$\Rightarrow f(x)=(x-5)^2-16$

6 0

3 years ago

A musical instrument has a pitch of 220 hertz when the wavelength is 3 feet. When the wavelength is 4 feet, the pitch is 165 her

earnstyle [38]

We know that
Inverse Variation is a relationship between two variables in which the product is a constant
so
let
x------> a pitch of a musical instrument
y------> the wavelength
x*y=k

find the value of k

for x=220 hertz y=3 ft
x*y=k
220*3=k
k=660

for x=165 hertz y=4 ft
x*y=k
165*4=660
k=660

the answer part a) is
the type of variation between pitch and wavelength is an inverse variation

part b) What is the pitch when the wavelength is 5 feet?
x=?
y=5 ft
k=660
x*y=k------> solve for x
x=k/y----------> x=660/5-----> x=132 hertz

the answer Part b) is
132 hertz

4 0

3 years ago

After giving 16 coins to Melissa, Juan had twice as many coins as Melissa. If they had 144 coins altogether, how many coins did

dem82 [27]

Melissa tem 16 moedas

Juan tem o dobro, ou seja, 16 x 2 = 32

Na adição vai ser o mesmo resultado

16+16=32

Se eles juntos tivessem 144 moedas.

Calculando

144 ÷ 2 = ou seja dividido por duas pessoas sendo melissa e juan

R = juan tem 72 moedas.

Cada um vai ficar com 72 moedas

3 0

3 years ago