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shtirl [24]
3 years ago
9

A variable expression consists only of numbers A. True B. False

Mathematics
2 answers:
lakkis [162]3 years ago
7 0

Answer: False

Step-by-step explanation:

The answer is false because A variable is letter that represents in a eqation or expression. Also, a variable is not a number is a letter. For example, x, n , y, k, m, and much more.

* Hopefully this helps:) Mark me the brainliest:) !!!

insens350 [35]3 years ago
5 0

False, an expression can have letters too.

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Through how many radians do the minute hand and the hour hand move between 1:00 p.m. and 1:45 p.m. (on the same day)? ​
timofeeve [1]

Answer:

π/8 radians

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION

In 1 h the minute hand on a clock moves through a complete circle, and the hour hand moves through 1 12 of a circle. Through how many radians do the minute hand and the hour hand move between 1:00 p.m. and 1:45 p.m. (on the same day)?

SOLUTION

✓If the minute hand on a clock moves through complete circle in 1 hour, then it means that it goes through a circle and angle of circle in radians is 2π.

Between 1:00 p.m. and 1:45pm in the same day we have 45 minutes i.e (1.45 pm -1pm)

Within the 1hour minutes, the hand can move with complete cycle of 2π radians

Then At time t= 45minutes

Angle through the circle at 45 minutes= 45/60 ×2π radians

= 3π/2 radians

And if the hour hand goes through a complete cycle 1/12 as told in the question we have 1/2 × 2π radians

For t=45 minutes

Then 1/12 × 2π ×45/60

= π/8 radians

Hence, the minute hand and the hour hand move π/8 radians between 1:00 p.m. and 1:45 p.m.

5 0
3 years ago
are there any other considerations that should be taken into account when trying to fit a giant tv into your car
FrozenT [24]
The width and height of the tv as well as the length and width of the back of your car
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3 years ago
What is the product of 2r2 - 5 and 3r
faust18 [17]

Answer: 6r^3 - 15r

Step-by-step explanation:

(3r) (2r^2 - 5)

Distribute.

6r^3 - 15r

Hope this helped.

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Find Each product
Law Incorporation [45]

Answer:

2.b

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Step-by-step explanation:

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3 years ago
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