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3 years ago

The circumference of a circle is 7pi ft. Find its diameter in feet

Mathematics

2 answers:

Simora [160]3 years ago

7 0

Answer:

dickfat

Step-by-step explanation:

Mumz [18]3 years ago

5 0

Answer:

The diameter is 7 ft.

Step-by-step explanation:

Circumference= Diameter*pi

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F f(x) = 3(x + 4), find f(2).

inna [77]

Answer:

f(2) = 18

Step-by-step explanation:

To evaluate f(2) , substitute x = 2 into f(x), that is

f(2) = 3(2 + 4) = 3 × 6 = 18

7 0

3 years ago

Which equation represents the hyperbola in general form?

valina [46]

ANSWER

$9 {y}^{2} - 4 {x}^{2}- 36y + 16x - 16 = 0$

EXPLANATION

The standard equation of the hyperbola is

$\frac{ {(y - 2)}^{2} }{4} - \frac{ {(x - 2)}^{2} }{9} = 1$

We multiply through by 36 to obtain:

$9 {(y - 2)}^{2} - 4( {x - 2)}^{2} = 36$

We now expand to get,

$9( {y}^{2} - 4y + 4) - 4( {x}^{2} - 4x + 4) = 36$

Expand :

$9 {y}^{2} - 36y + 36 - 4 {x}^{2} + 16x - 16 = 36$

To get the general form, we equate everything to zero to get,

$9 {y}^{2} - 4 {x}^{2}- 36y + 16x - 16 = 0$

The correct choice is D.

7 0

3 years ago

What is the inverses

dlinn [17]

inverse means opposite,

inverse of addition is subtraction

4 0

3 years ago

24. Laisha paid for her and a friend to go to the movies. She

sammy [17]

Answer:

$26.91

Step-by-step explanation:

9.50 +13.93 =23.43

50.34 - 23.43 = 26.91

4 0

2 years ago

Vertex of an absolute value graph ______ of the graph.

Inga [223]

Answer:

is the axis of symmetry

Step-by-step explanation:

i believe this is the answer :)

5 0

2 years ago