Answer:
B.
3/2; −3
Step-by-step explanation:
To find the x-intercept, substitute in 0 for y and solve for x . To find the y-intercept, substitute in 0 for x and solve for y
.
x-intercept(s): (
3
/2
,
0
)
y-intercept(s): (
0
,
−
3
)
By solving system by elimination, x= -1 and y=3
Step-by-step explanation:
We need to solve the systems by elimination.
Multiply eq(2) with 4 and subtract eq (1) and eq(2)
Now, multiply eq(1) with 2 and eq(2) with 9 and subtracting both equations:
So, by solving system by elimination, x= -1 and y=3
Keywords: Systems by elimination
Learn more about Systems by elimination at:
#learnwithBrainly
Answer:
False,
False,
True,
False
Step-by-step explanation:
1) f is not one to one:
example: /pie nit equal to 2/pie but,
sin(/pie)=sin(2/pie)=0.
2) f is not onto in R, becose sinx is not for example 2, or any other real number greater then 1.
3) is true
4) for any x e^x is positive, so g: R—>R, so e^x will never be for example -5 which is real number:)
Answer:
Para un triángulo de base B y altura H, el área se calcula como:
A = B*H/2
En este caso, tenemos un triángulo con altura igual a 4cm, entonces el área será:
A = (4cm)*B/2 = B*2cm
(Como no conocemos la base, no podemos obtener una respuesta exacta)
Si ampliamos el triángulo usando un factor de escala 4, entonces todas las medidas del triángulo son 4 veces más grandes, entonces la nueva altura es:
H' = 4*H = 4*4cm = 16cm
La nueva base será:
B' = 4*B
Entonces la nueva área es:
A' = (16cm)*4B/2 = (8cm)*(4B) = (4*2cm)*(4B) = (4*4)*(2cm*B) = 16*(2cm*B)
Y 2cm*B era el área original del triángulo, entonces:
A' = 16*A
Esto nos dice que la nueva área será 16 veces el área original.
