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emmasim [6.3K]
3 years ago
15

A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. If each of the semi circles h

ave a diameter of 10ft
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

39.29 ft

Step-by-step explanation:

We are made to know that the fountain contains two semi circles and a quarter-circle.

This means the fountain contains a total of 1+1/4 = 1.25 circles

Interestingly, the circles are similar and have the same diameter.

Now the perimeter of a circle with diameter 10ft is simply πd = 10 π

Now, since we have a total of 1.25 circles, the total perimeter would be 1.25 * 10 π = 12.5 π ft

With π as 22/7, the actual value of the perimeter would be 39.29 ft

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Answer:

  12 or 103

Step-by-step explanation:

The given angle is opposite the shorter side, so there will be two solutions.

In order to find f, we need to know angle F. We can find that by first finding angle E.

  E = arcsin(e/d·sin(D)) = arcsin(71/62·sin(36°)) = 42.307° or 137.693°

  F = 180° -D -E = 180° -36° -{42.307°, 137.693°} = {101.693°, 6.307°}

Then the measure of f is ...

  f = sin(F)/sin(D)×d = 62/sin(36°)×sin({101.693°, 6.307°})

  f = {103.29, 11.59}

Side f is either 12 or 103.

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3 years ago
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What is the slope of the line through (-9.6) and (-3, 9)?​
xenn [34]

Answer:

1/2

Step-by-step explanation:

(-9,6), (-3,9)

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1. If 4 = ( p – 2 ) then the solution of p = ------
shepuryov [24]

Answer:

<em>x = 8/3</em>

<em>Alternative form</em>

<em>x = 2 2/3, x = 2.6</em>

Step-by-step explanation:

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then divide both sides of the equation by 3 and there's your answer

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4 years ago
One blanket requires 2 1/5 feet of fabric. If Mariam wants to make 3 1/2 blankets, how much fabric will she need? (answer in fra
melisa1 [442]
2 1/5 = when you simplify is 11/5
3 1/2= when you simplify is 7/2
Now, if Miriam want to make 3 1/2 blanket you have to multiply for 2 1/5 that is the amount for 1 blanket. And the result it will be how much fabric Miriam will need to make the 3 1/2 blanket
However, you have to
3 1/2 x 2 1/5 = 7 7/10 if you simplify it will be
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Calculation steps:

7/2 x 11/5 = 7 x 11 / 2 x 5 = 77/10 = 7 7/10
So, Miriam will need 7 7/10 feet of fabric to make 3 1/2 blanket.

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