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FinnZ [79.3K]
3 years ago
11

The circumference of a circle is 13π ft. What is the area, in square feet? Express your answer in terms of π.

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
5 0

Answer:

\frac{169}{4} \pi square feet

Step-by-step explanation:

Circumference = 2πr

13π = 2πr

\frac{13}{2}=r

Area = πr²

π × \frac{13}{2}² =

\frac{169}{4}π square feet

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The taxi fare in Gotham city is 2.40 for the first mile and additional mileage charged at the rate of .20 for each additional.1
Lemur [1.5K]

Answer:

28 miles

Step-by-step explanation:

Let

x ----> the number of miles

y ----> the total cost of taxi fare

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope or unit rate

b is the y-intercept or initial value (value of y when the value of x is equal to zero)

In this problem we have

The unit rate or slope is equal to

m=\$0.20\ per\ mile

The initial value or y-intercept is equal to

b=\$2.40

substitute

y=0.20x+2.40

Find out how many miles can you ride for $10

Subtract $2 of the tip

we have

y=$10-$2=$8

substitute in the linear equation

8=0.20x+2.40

Solve for x

0.20x=8-2.40

0.20x=5.60

[tex]x=28\ miles/tex]

8 0
4 years ago
Explain how the reaction time and the reaction rate compare to the temperature of the water and the reactants. Revisit your hypo
seropon [69]

Reaction rate and reaction time are inversely proportional to each other.

<h3>Reaction time and reaction rate</h3>

Reaction rate and reaction time are two intertwined concepts. Reaction rate refers to how quickly or slowly a reaction occurs while reaction rate refers to the time taken for a particular reaction to occur.

If the reaction rate increases, the reaction time decreases, if the reaction rate decreases, the reaction time increases hence the both quantities are inversely proportional to each other.

Learn more about reaction rate: brainly.com/question/8592296

8 0
3 years ago
How many different triangles can be constructed with side measurements ​6 centimeters, 9, centimeters, and 13 centimeters​?
jeyben [28]
Umm I'm not that good at this but my guess is One triangle let me know if that was right
4 0
4 years ago
Read 2 more answers
I need to solve for x
Andrei [34K]

Answer:

x = 10

Step-by-step explanation:

The exterior angle theorem states that the measure of each exterior angle of a triangle is equal to the sum of the opposite and non-adjacent interior angles. The two non-adjacent interior angles opposite the exterior angle are sometimes referred to as remote interior angles.

In the given problem, the exterior angle is < JUV, and its corresponding remote interior angles are < V and < W.

Establish the following equation according to the exterior angle theorem:

< V + < W = < JUV

88° + (5x + 1)°  = (14x - 1)°

Solve for x algebraically:

88° + 5x + 1  = 14x - 1

89 + 5x = 14x - 1

89 + 1 + 5x = 14x - 1 + 1

90 +  5x = 14x

90 + 5x - 5x = 14x - 5x

90 = 9x

90/9 = 9x/9

10 = x

Therefore, the value of x = 10.

7 0
2 years ago
HELP!! Can someone help me with this
cricket20 [7]

Answer:

1 no

2yes

3 no

4 no

5 Yes

6 Yes.

so it gives you a pattern right there a squared plus b squared equals c squared just fill in the numbers in that way

6 0
3 years ago
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