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3 years ago

What is the solution to the equation -4 (2x + 3) = 2x + 6 - (8x + 2)

Mathematics

1 answer:

jeka943 years ago

4 0

Answer:

x= -8 i believe

Step-by-step explanation:

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Use the distributive popertyto create an equivalent expression to 7x+56

kap26 [50]

Answer:

7(x+8)

Step-by-step explanation:

Divide 7 from both 7x and 56 to get 7(x+8)

7 0

3 years ago

Work out the sheet below

rewona [7]

Answer:

188 meters cubed

Step-by-step explanation:

radius = 1/2d d=6 radius =3 height 20
formula for thia equation is 1/3 (3.14)(3^2)(20)
(3.14)(9)(20)
3.14 x 9 = 28.26
28.26 x 20 = 565.2
565.2/3 = 188.40
188.4 round to 3sf is 188

5 0

2 years ago

1. 5. What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m

balu736 [363]

Answer:

50Hz x .10m = 5 m/s

20 m/s divided by .50m = 40Hz

80 m/s divided by .20m = 400Hz

120 m/s divided by .40m = 300Hz

340 m/s divided by 440Hz = .77m

8 0

3 years ago

Read 2 more answers

If x=3 then x^2=9. true or false?

rewona [7]

Answer:

if you mean x times 2 equals nine then false if you mean x to the power of two then true.

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

An object moves at a constant rate along a circular path with radius 10 inches, and makes 3 revolutions in 2 seconds.

Neko [114]

Answer:

94.28 inches/second.

Step-by-step explanation:

The length of the circumference of the circular path with 10 inches radius is = $2\pi r = 2 \times \frac{22}{7} \times 10 = 62.85$ inches.

Now, the point on the edge of the wheel moves by 3 revolutions in 2 seconds.

So, in 2 seconds the point moves a linear distance of (3 × 62.85) = 188.57 inches.

Therefore, the linear velocity of the point in inches per second is $\frac{188.57}{2} = 94.28$ inches per second.

(Answer)

8 0

3 years ago

Read 2 more answers