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eimsori [14]
2 years ago
11

What is the value of the expression below? 7 divided by 2 minus 4.5 x times 3 + 8

Mathematics
2 answers:
Vesnalui [34]2 years ago
7 0

Answer:

the answer is 5

Step-by-step explanation:

7 \div 3 = 3.5

3.5 - 4.5 =  - 1

- 1 \times 3 =  - 3

- 3 + 8 = 5

melomori [17]2 years ago
7 0

Answer:

The answer is 5

Step-by-step explanation:

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PLEASE HELP I ONLY HAVE 12 MINUTES!! The pendulum of the grandfather clock shown below swings at a maximum angle of 25 degrees.
Vaselesa [24]

Answer: T = 2π√(I/mgD)

Step-by-step explanation:

where:

m is the mass of the pendulum;

I is the moment of inertia of the mass; and

D is the distance from the center of mass to the point of suspension.

Determine the length of the pendulum. For example, it can be equal to 2 m.

Decide a value for the acceleration of gravity. We will use the Earthly figure of 9.80665 m/s², but feel free to check how the pendulum would behave on other planets.

Calculate the period of oscillations according to the formula above: T = 2π√(L/g) = 2π * √(2/9.80665) = 2.837 s.

Find the frequency as the reciprocal of the period: f = 1/T = 0.352 Hz.

You can also let this simple pendulum calculator perform all calculations for you!

7 0
2 years ago
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Working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of x un
Jobisdone [24]

Answer:

B. 18

Step-by-step explanation:

The 4 machines can produce x units in 6 days. This means they have a daily total rate of x/6 units per day.

Since the machines are similar and that they work at the same rate, this means that the individual rates of each machine would be x/6/4 = x/24 units per day.

Now we are looking at producing 3x units in 4 days. This means that we want to produce 3x/4 units in a single day. Now, since each machine would work at a rate of x/24, we need to know the number of machines we need. To know this number, we simply divide what is to be achieved by the individual rate:

This is 3x/4 divided by x/24. This mathematically means 3x/4 * 24/x = 18 machines

4 0
3 years ago
A group of randomly selected Apple Valley High School students were asked to pick their favorite gym class. The table below show
joja [24]

Answer:it is D)172 in the khan academy answers

Step-by-step explanation:

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Step-by-step explanation:

3 0
3 years ago
PLEASE HELP!!!!!!!!!!!!!!!!
Anton [14]

Answer:

<h2>1. subtract 3x, subtract 4, divide by -4</h2><h2 /><h2>2. add x</h2>

Step-by-step explanation:

1 + 3x = -x + 4.

subtract 3x

1 = -4x + 4

subtract 4

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divide by -4

(-3)/(-4) = (4x)/(-4)  ⇌ x = 3/4

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