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diamong [38]
2 years ago
8

HEY I NEED HELP FOR DIS QUESTION. I WILL MARK BRAINLIEST FOR THE BEST ANSWER. PLEASE SHOW ALL WORK AND FULL SOLUTIONS. The volum

e of this can is about 1846 cm^3. The radius is 7. What is its height?
Mathematics
1 answer:
Wewaii [24]2 years ago
3 0

9514 1404 393

Answer:

  12.0 cm

Step-by-step explanation:

Use the formula for the volume of a cylinder. Fill in the given values and solve for the height.

  V = πr^2h

  1846 cm^3 = π(7 cm)^2·h

  h = 1846/(49π) cm ≈ 12.0 cm . . . . . . divide by the coefficient of h

The height of the can is about 12.0 cm.

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Y=-2x²-8x-5 domain and range
Jobisdone [24]

Answer:

Domain: All real numbers

Range: y≤3

Step-by-step explanation:

The given function is

y =  - 2 {x}^{2}  - 8x - 5

This is a polynomial function.

The domain is set of all values of x, that makes this function defined.

Since polynomial functions are defined everywhere, the domain is all real numbers.

To find the range we put the function in vertex form:

y =  - 2( {x}^{2}  + 4x) - 5

y =  - 2( {x}^{2}  + 4x + 4) - 5 +  - 4 \times  - 2

y =  - 2( {x}  + 2)^{2} - 5 + 8

y =  - 2( {x}  + 2)^{2}  +  3

The maximum value is 3

The function turns downward, hence the range is:

y \leqslant 3

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3 years ago
Find the measure of a supplement of a 20 3/4 degrees
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4 0
3 years ago
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Write this number in expanded form twenty three thousand four hundred thirty six
jok3333 [9.3K]
20,000 + 3,000 + 400 + 30 + 6
5 0
3 years ago
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Please answer quickly I only have 5 mins lol. The ratio of students polled in 6th grade who prefer lemonade to Iced tea is 8:4,
zhannawk [14.2K]

Answer:

Let total students who prefer lemonade is 2a and who prefer ice tea is a.

Students in 6th grade=39

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4 0
2 years ago
the function f(x)= sqrt x is translated left 5 units and up 3 units to create the function g(x). what is the domain of g(x)?
Zinaida [17]

Answer:

x ≥ -5

Step-by-step explanation:

If we have a translation to left c units, we write " x + c " in the function, and

If we have a translation to right c units, we write " x - c" in the function

If we have vertical translation up b units, we "add b to the function", and

If we have vertical translation down b units, we "subtract b to the function"

The parent function is  f(x)=\sqrt{x}

Since translation left 5 units and up 3 units, we can write:

f(x)=\sqrt{x+5} + 3

The domain is affected by the square root sign and we know the number under the square root CANNOT be negative, so we can say:

x + 5 ≥ 0

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3 years ago
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