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vladimir2022 [97]
3 years ago
6

Evaluate the expression 3(x + 4) for x = 2*

Mathematics
2 answers:
Vladimir [108]3 years ago
6 0

Answer: 18

 

Step-by-step explanation: Substitute the value of the variable into the equation and simplify.-Have a nice day

Sedbober [7]3 years ago
4 0
18 :)

Hope this helps!!!!!!
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If the second hand of a clock has a length of 10 cm, find the distance the tip of the second hand travels in 45 seconds. Give an
UkoKoshka [18]

The distance traveled by the second hand of the clock is 0.471 m.

<h3 />

To calculate the distance the tip of the second hand of the clock travel in 45 seconds, we use the formula below.

<h3>Formula:</h3>
  • L = 2πr∅/360.................. Equation 1

<h3> Where: </h3>
  • L = distance traveled by the tip of the second hand.
  • r = Length of the second hand
  • ∅ = angle formed by the second hand of the clock
  • π = pie

From the question,

<h3>Given:</h3>
  • r = 10 cm = 0.1 m
  • ∅ = (360×45/60) =  270°
  • π = 3.14

Substitute these values into equation 1

  • L = 0.1×2×270×3.14/360
  • L = 0.471 cm.

Hence, The distance traveled by the second hand of the clock is 0.471 m

Learn more about distance traveled here: brainly.com/question/4931057

<h3 />

7 0
3 years ago
HELPP I don’t get this at all. I originally got c but my teacher said it was incorrect. This is about volume and cylinders. Expl
EastWind [94]

Answer:

B

Step-by-step explanation:

The formula for the volume of a cylinder is \pi r^2 h, where r is the radius of the base and h is the height of the cylinder.

\pi \cdot 3.25^2 \cdot 10=105.625\pi \text{ cm}^3

Therefore, the correct answer is choice B. Hope this helps!

4 0
3 years ago
Read 2 more answers
Mary Beth and her family ate a meal in a restaurant the cost of the meal was $34.50 the sales tax was 8% of the cost of the meal
nikdorinn [45]
The total cost would be the tax plus the cost of the meal. In order to find the tax you can set up a proportion: 8/100=x/34.5. Then you can cross multiply: (100•x)=(8•34.5). Then we have 100x=276. Divide both sides by 100 and we have x=2.76. This added to the 34.50 is equal to 37.26. Hope this helps!
4 0
3 years ago
I will mark brainliest, please help !!
Elena L [17]

Answer:

x = 5/(a-b+3)

Step-by-step explanation:

ax+3x=bx+5

Collect all the terms that has x:

ax-bx+3x = 5 (Subtracting bx both sides)

Take out the x!

x(a-b+3) =5

Divide (a-b+3) both sides to solve for x

x = 5/(a-b+3)

Hope this helps!

Would really appreicate the brainliest!

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3 years ago
A candle is 6 inches tall and burns at a rate of 1/2 inch per hour. If the candle is now 3.5 inches, how many hours has it been
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