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larisa [96]
3 years ago
11

Someone help me please lol

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Answer:

this what i got

Step-by-step explanation:

1. x = 5.5

2. 14.2

3. 3.6

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Identify the variable and the constant in the expression below. n + 3 variable: ___________________________ constant: __________
Ilya [14]
N is the variable and 3 is the constant.
8 0
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

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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

W = \dfrac{1}{2}\times 1234.568 \times (0.04^2-0.02^2)^2

W = 0.741 J

b) F = k x

  25 = 1234.568 × x

     x = 0.0205 m

     x = 2.05 cm

3 0
3 years ago
Suppose the system of linear equations has infinitely many solutions. What is the value of y for the second equation?
Otrada [13]
I believe it would be 4

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6 0
3 years ago
Read 2 more answers
What is the coefficient of 4(3)(2)Q​
inysia [295]

Answer:

24

Step-by-step explanation:

4 x 3 = 12

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Coefficient is the number infront of the varible being multiplied. In this case 24 is the coefficient, and Q is the variable.

7 0
3 years ago
Find the third side of a right triangle if the hypotenuse is 14 km and one side is 9 km
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14^2 - 9^2 = a^2
Easy enough
14^2 = 196
9^2 = 81
196 - 81 = 115
The square root of 115 = 10.72


The third side is 10.72km
3 0
2 years ago
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