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Rus_ich [418]
3 years ago
12

3. Patricia buys a round dining room table. If the radius of the table is 3 feet, what is the area she has

Mathematics
1 answer:
Jlenok [28]3 years ago
6 0

Answer:

28 square feet

Step-by-step explanation:

Area = \pi r^{2}

Area = \pi×(3×3)

Area = 28.2743

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)If there are 6 builders, it takes 80 days to complete the house. How many builders must be employed to build the house in just
LiRa [457]

Answer:

64 builders must be employed to build a house in 16 days

5 0
2 years ago
Lashonda purchased a prepaid phone card for $20. Long distance calls cost 8 cents a minute using this card. Lashonda used her ca
Gre4nikov [31]

We know that

• Lashonda purchased a prepaid phone card for $20.

,

• Long-distance calls cost 8 cents a minute.

,

• The remaining credit on her card is $17.12.

This problem can be expressed as

20-0.08x=17.12

Where <em>x</em> is the number of minutes.

We solve the equation for <em>x</em>

\begin{gathered} -0.08x=17.12-20 \\ -0.08x=-2.88 \end{gathered}

Then, we divide by -0.08 the equation

\begin{gathered} \frac{-0.08x}{-0.08}=\frac{-2.88}{-0.08} \\ x=36 \end{gathered}<h2>Therefore, Lashonda's call last 36 minutes.</h2>

8 0
1 year ago
Solve x
d1i1m1o1n [39]

Step-by-step explanation:

x^{2} - 4x - 7 = 0

First, let's move the 7 to the right-hand side so we can determine what constant we'll need on the left-hand side to complete the square:

x^{2} - 4x = 7

From here, since the coefficient of the x term is -4, we know the square will be (x - 2) (since -2 it's half of -4).

To complete this square, we will need to add (-2)^{2} to both sides of the equation:

x^{2} - 4x + (-2)^2 = 7 + ^{-2}

x^{2} - 4x + 4 = 7 + 4

(x - 2)^{2} = 11

Now we can take the square root of both sides to figure out the solutions to x:

x - 2 = \pm \sqrt{11}

x = 2 \pm \sqrt{11}

7 0
3 years ago
Solve for x <br><br><br><br> I need helppppopopo
dolphi86 [110]

1.) the line makes triangle
2.) triangles always equal 180 degrees
3.)180-108-37=35
4.)35=8x+3
5.) 32=8x
6.)4=X
6 0
2 years ago
Which shape has four congruent sides and two sets of parallel sides?
Nonamiya [84]

Answer:

a square

Step-by-step explanation:

8 0
2 years ago
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