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2 years ago

What is the circumference of the circle?

Mathematics

2 answers:

julia-pushkina [17]2 years ago

6 0

I think it is 2 hope this helped you

Sholpan [36]2 years ago

4 0

Answer:

1. 6 pi

2. 7 pi

3. 8 pi

4. 15 pi

5. 12 pi

Step-by-step explanation: Just took the USATestprep test and got them all correct, sorry I dont have a proper answer on how I got them.

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Find the value of x in the following diagram, 3x + 10 Here, B and D are points of tangency.

SVEN [57.7K]

Given:

The given circle with center at C. The lines AB and AD are tangents to the circle C.

The length of AB is (3x + 10)

The length of AD is (7x - 6)

We need to determine the value of x.

Value of x:

Since, we know the property of tangent that, "if two tangents from the same exterior point are tangent to a circle, then they are congruent".

We shall determine the value of x using the above property.

Thus, we have;

AB = AD

Substituting the values, we get;

$3x+10=7x-6$

Subtracting both sides of the equation by 7x, we get;

$-4x+10=-6$

Subtracting both sides of the equation by 10, we get;

$-4x=-16$

Dividing both sides of the equation by -4, we get;

$x=4$

Thus, the value of x is 4.

5 0

3 years ago

Alpha printing will make 400 brochures for $100. Omega printing will make 1,000 brochures for $100. How much money will you save

Dmitriy789 [7]

it is given in the question that

Alpha printing will make 400 brochures for $100. Omega printing will make 1,000 brochures for $100.

For Alpha, cost of 1 brochure is

$= \frac{100}{400} = $0.25$

For Omega,

Cost of 1 brochure is

$= \frac{100}{1000} = 0.10$

So choosing Omega printing, you will save

$= 0.25-0.10 = $0.15$

on each brochure .

6 0

3 years ago

Solve the following system of equations, 3x +5y+2-0

zlopas [31]

Answer:

3x+5y+2

Step-by-step explanation:

remove the 0

4 0

3 years ago

The potential energy, P, in a spring is represented using the formula P = kx2. Lupe uses an equivalent equation, which is solved

ella [17]

Original equation is $P=kx^{2}$

So, $kx^{2} =P$ and

$k=\frac{P}{x^{2} }$

If we compare this equation with the given options, we can easily find that this matches with the last one $k=\frac{p}{2x^{2} }$ with P = p/2.

Hence, correct option is $k=\frac{p}{2x^{2} }$ .

4 0

3 years ago

Read 2 more answers

Your class has 30 students. if 1/3 of them walk to school, how many students in your class walk to school

Delvig [45]

1/3 of 30 would be 10. So 10 students walk to school.

4 0

3 years ago