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Zinaida [17]
3 years ago
9

Solve for x if 2(5x + 2)^2 =48

Mathematics
1 answer:
kodGreya [7K]3 years ago
4 0

Answer:

X= -2+2sqrt6/5

Step-by-step explanation:

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What is .04b+13=.04b-8.6
lisov135 [29]

This is an equation with no roots  because there is no value of b which will make left side = right side.


8 0
4 years ago
Given: x - 8 > -3. Choose the solution set.
Sergeeva-Olga [200]
X - 8 > -3
x - 8 + 8 > -3 + 8
x > 5 

The answer is the third choice.
7 0
3 years ago
Branliest<br> solve the equation <br> 8.7=3.5m-2.5(5.4-6m)
ira [324]
Simplifying
8.7 = 3.5m + -2.5(5.4 + -6m)
8.7 = 3.5m + (5.4 * -2.5 + -6m * -2.5)
8.7 = 3.5m + (-13.5 + 15m)

Reorder the terms:
8.7 = -13.5 + 3.5m + 15m

Combine like terms: 3.5m + 15m = 18.5m
8.7 = -13.5 + 18.5m

Solving
8.7 = -13.5 + 18.5m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-18.5m' to each side of the equation.
8.7 + -18.5m = -13.5 + 18.5m + -18.5m

Combine like terms: 18.5m + -18.5m = 0.0
8.7 + -18.5m = -13.5 + 0.0
8.7 + -18.5m = -13.5

Add '-8.7' to each side of the equation.
8.7 + -8.7 + -18.5m = -13.5 + -8.7

Combine like terms: 8.7 + -8.7 = 0.0
0.0 + -18.5m = -13.5 + -8.7
-18.5m = -13.5 + -8.7

Combine like terms: -13.5 + -8.7 = -22.2
-18.5m = -22.2

Divide each side by '-18.5'.
m = 1.2

Simplifying
m = 1.2
7 0
3 years ago
A spring stretches out by 8cm when a 0.2 kg weight is placed on it. How much does the spring stretch by when a 0.5 kg weight is
Ierofanga [76]

m₁ = mass hanged initially = 0.2 kg

x₁ = initial stretch in the spring = 8 cm = 0.08 m

k = spring constant of the spring

the weight of the mass hanged is balanced by the spring force by the spring hence

Spring force = weight of mass hanged

k x₁ = m₁ g

k (0.08) = (0.2) (9.8)

k = 24.5 N/m


m₂ = mass hanged later = 0.5 kg

x₂ = final stretch in the spring = ?

k = spring constant of the spring = 24.5 N/m

the weight of the mass hanged is balanced by the spring force by the spring hence

Spring force = weight of mass hanged

k x₂ = m₂ g

(24.5) x₂  = (0.5) (9.8)

x₂  = 0.2 m = 20 cm



5 0
3 years ago
Simply the expression (2x-9)(x+6)
Andrew [12]
2x^2+3x-54 that’s the answer .
5 0
3 years ago
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