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guapka [62]
3 years ago
8

What additional piece of information must be known in order to calculate the volume of the cylinder below?

Mathematics
2 answers:
kicyunya [14]3 years ago
8 0

Answer:

The correct answer is -

2. the height of the cylinder  

Step-by-step explanation:

The volume of the cylinder is given as :

V= \pi r^{2} h

In the given figure, we have the radius. So, we need the height in order to calculate the volume.

So, the correct answer is -

2. the height of the cylinder  

djyliett [7]3 years ago
5 0

For this case we have that by definition, the volume of a cylinder is given by:

V = \pi * r ^ 2 * h

Where:

r: It is the radius of the cylinder

h: It is the height of the cylinder

We have as data, observing the figure, that they give us the radio. Then, the height is missing.

Answer:

Option B

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Determine which functions have two real number zeros by calculating the discriminant, b2 – 4ac. Check all that apply.
pantera1 [17]

Step-by-step explanation:

We need to write the function that have two real number zeros by calculating the discriminant i.e. b^2-4ac.

We know that,

If D>0  the roots are real and unequal

If D= 0 roots are real and equal

If D< 0 roots are imaginary or not real and unequal

Function (1)

f(x)=x^2 + 6x + 8\\\\D=6^2-4\times 1\times 8\\\\D=4

D>0  the roots are real and unequal

Function (2)

g(x)=x^2 + 4x + 8\\\\D=4^2-4\times 1\times 8\\\\D=-16

D<0  the roots are real and unequal

Function (3)

h(x)=x^2 -12x+32\\\\D=(-12)^2-4\times 1\times 32\\\\D=16

D>0  the roots are real and unequal

Function (4)

k(x)=x^2 +4x-1\\\\D=(4)^2-4\times 1\times (-1)\\\\D=20

D>0  the roots are real and unequal

Function (5)

p(x)=5x^2 +5x+4\\\\D=(5)^2-4\times 5\times 4\\\\D=-55

D<0  the roots are real and unequal

Function (6)

t(x)=x^2 -2x-15\\\\D=(-2)^2-4\times 1\times (-15)\\\\D=64

D>0  the roots are real and unequal

(1),(3),(4) and (6) have two real number zeroes.

5 0
3 years ago
A team of storm enthusiasts collected data to show the relationship between the time between seeing lightning and then hearing t
never [62]

Answer:

Proportionality constant = \frac{1}{5}

Step-by-step explanation:

From the graph attached,

Data set representing the relation between seeing lightning and the hearing thunder is,

{(15, 3), (25, 5), (35, 7), (45, 9)}

Since, Distance from lightening (d) ∝ Time between lightening and thunder (t)

d = kt

Here k = proportionality constant

k = \frac{d}{t}

From the data set one point is (15, 3).

k = \frac{3}{15}

k = \frac{1}{5} miles per second

Therefore, proportionality constant is \frac{1}{5} miles per second.

3 0
3 years ago
3(5 √3 + 3 √3) simplified
AleksandrR [38]
3(5 √3 + 3 √3) simplified would be  24√3
3 0
3 years ago
A pooled variance is an estimated weighted variance made up of several different populations when the mean of each population ma
Marta_Voda [28]

Answer:

True

Step-by-step explanation:

Considering the above definition of Pooled Variance, the correct answer is TRUE.

This is because Pooled variance is used to determine the reasonable estimates of variance, where several repeated tests are expected at each value.

This helps to provide greater precision estimates of variance.

4 0
3 years ago
HALPPPPP :(((((((((((
SVEN [57.7K]

Answer: 5

Explanation: 12(3) - 3(1/3)/4(3)-5

                   = 36-1/12-5

                   = 35/7

                   = 5

3 0
2 years ago
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