2 years ago

Select all that would translate 2x + 2 = 8 into words

Mathematics

1 answer:

deff fn [24]2 years ago

5 0

Answer:

two times a number plus two is eight

Step-by-step explanation:

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Help plzWRITE AN EQUATION TO EXPRESSION Y IN TERMS OF X

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Answer:

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3 years ago

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alex41 [277]

Answer:

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2 years ago

Suppose that 5 J of work is needed to stretch a spring from its natural length of 30 cm to a length of 39 cm.

vesna_86 [32]

Answer

given,

work = 5 J

spring stretch form 30 cm to 39 cm

$W = \dfrac{1}{2}kx^2$

x = 0.39 - 0.30 = 0.09 m

$5 = \dfrac{1}{2}k\times 0.09^2$

$k = \dfrac{5\times 2}{0.09^2}$

k = 1234.568 N/m

a) work when spring is stretched from 32 cm to 34 cm

x₂= 0.34 -0.30 = 0.04 m

x₁ = 0.32 - 0.30 = 0.02

$W = \dfrac{1}{2}k(x_2^2-x_1^2)^2$

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W = 0.741 J

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3 years ago

6x – 4y = -5<br>4x + 5y = -11

kipiarov [429]

Answer:

x= -1.5, y= -1

Step-by-step explanation:

6x= -5+4y

x= (-5+4y) / 6

4((-5+4y) / 6) + 5y = -11

4(-5+4y) + 5*6y = -11*6

-20+16y+30y= -66

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y(16 + 30) = -46

y= -46 / (16 + 30)

y= -46 / 46

y= -1

x= (-5+4(-1)) / 6

x= (-5-4) / 6

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x= -1.5

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3 years ago

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Answer:

a. 103

b.68

c.79

d.95

e.105

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3 years ago