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3 years ago

I will mark Brainliest

Mathematics

2 answers:

gladu [14]3 years ago

8 0

I think its A = 4π(7)2

valentinak56 [21]3 years ago

8 0

I think that the answer is the last one, 4 pi (7)2 because if the radius of the sphere is 7 feet than this equation works the best as 4 * pi * 7^2 = 49*4*pi=196 pi= 615.75ft^2 or 615.75 ft squared.

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Which could be the function?

sladkih [1.3K]

Answer:

$f(x)=(x-4)^{2}$

Step-by-step explanation:

we have that

The axis of symmetry shown in the graph is x=4

we know that

The axis of symmetry of a vertical parabola is equal to the x-coordinate of the vertex

Verify each case

case a) we have

$f(x)=(x+4)^{2}$

The vertex is the point (-4,0)

therefore

Cannot be the function

case b) we have

$f(x)=x^{2}+4$

The vertex is the point (0,4)

The axis of symmetry is x=0

therefore

Cannot be the function

case c) we have

$f(x)=(x-4)^{2}$

The vertex is the point (4,0)

The axis of symmetry is x=4

therefore

Could be the function

case d) we have

$f(x)=x^{2}-4$

The vertex is the point (0,-4)

The axis of symmetry is x=0

therefore

Cannot be the function

8 0

3 years ago

Read 2 more answers

Answer ?? It’s multiplicity

EleoNora [17]

I think A is the answer

3 0

2 years ago

Suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years. A study wa

Sladkaya [172]

Answer:

The null hypothesis is $H_0: \mu = 2.5$ .

The alternative hypothesis is $H_1: \mu > 2.5$

Step-by-step explanation:

Suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years.

At the null hypothesis, we test if the mean is of 2.5 years, that is:

$H_0: \mu = 2.5$

A study was then done to see if the mean time has increased in the new century.

At the alternative hypothesis, we test if the mean has increased, that is, if it is above 2.5 years. So

$H_1: \mu > 2.5$

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3 years ago

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dem82 [27]

Answer:

79.25

Step-by-step explanation:

7 0

3 years ago

What is 6(x-3) -4 (x-5)

vladimir1956 [14]

Answer:

2x + 2

Step-by-step explanation:

6(x - 3) - 4(x - 5)

6*x - 6*3 - 4*x - 4 * -5

6x - 18 - 4x + 20

2x + 2

6 0

3 years ago

Read 2 more answers