Question

Determine o valor de Y na expressão para cada valor de X

Answer 1

resposta e explicação:

a)y= 3+ 8+10= 21

b)y= 15+ 200+ 10= 225

c)7,5+ 50+ 10= 67,5

d)10,5+ 98+ 10= 118,5

e) 3/4 + 2/4 + 10=

0,75+0,5+10= 11,25

Answer 2

Oie, Td Bom?!

• Seja a expressão:

$y = \frac{3}{2} x + 2x {}^{2} + 10$

a)

• x = 2.

$y = \frac{3}{2} \: . \: 2 + 2 \: . \: 2 {}^{2} + 10$

$y = \frac{3}{2} \: . \: 2 + 2 \: . \: 4 + 10$

$y = 3 + 8 + 10$

$y = 11 + 10$

$y = 21$

b)

• x = 10.

$y = \frac{3}{2} \: . \: 10 + 2 \: . \: 10 {}^{2} + 10$

$y = 3 \: . \: 5 + 2 \: . \: 100 + 10$

$y = 15 + 200 + 10$

$y = 15 + 210$

$y = 225$

c)

• x = 5.

$y = \frac{3}{2} \: . \: 5 + 2 \: . \: 5 {}^{2} + 10$

$y = \frac{15}{2} + 2 \: . \: 25 + 10$

$y = \frac{15}{2} + 50 + 10$

$y = \frac{15}{2} + 60$

$y = \frac{15 + 120}{2}$

$y = \frac{135}{2}$

d)

• x = 7.

$y = \frac{3}{2} \: . \: 7 + 2 \: . \: 7 {}^{2} + 10$

$y = \frac{21}{2} + 2 \: . \: 49 + 10$

$y = \frac{21}{2} + 98 + 10$

$y = \frac{21}{2} + 108$

$y = \frac{21 + 216}{2}$

$y = \frac{237 }{2}$

e)

• x = 1/2.

$y = \frac{3}{2} \: . \: \frac{1}{2} + 2 \: . \: ( \frac{1}{2} ) {}^{2} + 10$

$y = \frac{3}{4} + 2 \: . \: \frac{1}{4} + 10$

$y = \frac{3}{4} + \frac{1}{2} + 10$

$y = \frac{3 + 2 + 40}{4}$

$y = \frac{45}{4}$

Att. Makaveli1996