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Marizza181 [45]
2 years ago
5

Y=x^2+3x-4 y=3x+5 what does x and y equal

Mathematics
1 answer:
Rom4ik [11]2 years ago
4 0

Answer:

y = x^2+3x-4 y=3x+5

(3, 14)

Step-by-step explanation:

hope this helps and have a nice day!! :)

And also you should try to use Desmos calculator it really helps with these problem/ equations!! you just have to put y = x^2+3x-4 then press enter and on the second one you put  y=3x+5 and then it shows you a graph and plus the answer!! :))

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Anec 2 Matemáticas
Rama09 [41]

Answer:

a) 1 : 100

1 cm en el mapa equivalen a 100 cm en la realidad

b) 1 : 1000

1 cm en el mapa equivalen a 1000 cm en la realidad

c) 1 : 2000

1 cm en el mapa equivalen a 2000 cm en la realidad

d) 1 : 18000

1 cm en el mapa equivalen a 18000 cm en la realidad

Step-by-step explanation:

Tenemos 4 escalas :

a) 1 : 100

b) 1 : 1000

c) 1 : 2000

d) 1 : 18000

Definimos ''escala'' como una relación entre dos números ''a'' y ''b'', generalmente ''a'' y ''b'' son números naturales. Denotamos la escala como :

a : b

En dónde ''a'' representa la longitud del dibujo y ''b'' la longitud real.

Por ende, cuando a estamos en presencia de una escala de reducción y cuando a>b estamos en presencia de una escala de ampliación.

La escala a=b ó 1 : 1 se define como escala natural.

Analicemos cada caso :

a) 1 : 100

Aquí vemos que es una escala de reducción (dado que 1 < 100) por ende cualquier magnitud de longitud en el mapa será 100 veces más grande en la vida real.

En este caso, 1 cm en el mapa equivalen a 100 cm en la realidad.

Análogamente y con el mismo razonamiento, escribimos las relaciones para los casos b), c) y d)  

b) 1 cm en el mapa equivalen a 1000 cm en la vida real

c) 1 cm en el mapa equivalen a 2000 cm en la vida real

d) 1 cm en el mapa equivalen a 18000 cm en la vida real

b), c) y d) también representan escalas de reducción.

7 0
3 years ago
I'm confused. Help. Find x please.
miss Akunina [59]

Answer:

x = 2 and x = 10

Step-by-step explanation:

(x+3)^2 = (x - 5)^2 + (x + 2)^2

x^2 + 6x + 9 = x^2 - 10x + 25 + x^2 + 4x + 4

x^2 + 6x + 9 =2x^2 - 6x + 29

x^2 - 12x + 20 = 0

(x - 10)(x - 2) = 0

x - 10 = 0; x = 10

x - 2 = 0; x = 2


4 0
3 years ago
The height of the water in a tank decreased 3 inches each week due to evaporation. What is the change in the height of the water
Temka [501]
If each week the tank decreased by 3 inches, in 2 weeks it would be 6 in, 3 weeks is 9 in, 4 weeks would be 12 in, and 5 weeks would be 15 in.
8 0
3 years ago
Please Help extra points
Molodets [167]
<h2>A. $123.51</h2><h2 />

1^{st}: $24.48 per year + price * 0.85

2^{nd}: $36.83 per year + price * 0.75

Substitute each value into both equations as price.

A:

129.4635

129.4625

B:

98.158

101.84

C:

145.2055

143.3625

D:

155.703

152.615

A is the lowest value where the second value is lower than the first.

3 0
4 years ago
Who got insta gramm because I need help with my assignments I’ll pay u
Ymorist [56]

Answer:

oki then

Step-by-step explanation:

7 0
3 years ago
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