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3 years ago

Is pie rational or irrational?

Mathematics

2 answers:

andre [41]3 years ago

5 0

Pie is irrational!!!!

SpyIntel [72]3 years ago

3 0

Pi is an irrational number, because it is represented as a non-repeating decimal.

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The area of the right triangle shown is 24 square feet.

Stolb23 [73]

Given : A = 24 sq feet

A = 0.5 base x height

base = x , height = x+2

A = 0.5 x(x+2) = 24 sq feet

1) 0.5 x(x+2) = 24 (A)

2) x^2 + 2x - 48 = 0 (D)

To check the rest un-wrap the bracket:

x^2 + (x+2)^2 = 24

x^2 + x^2 + 4 + 4x = 24

2x^2 + 4x - 20 = 0

x^2 + 2x - 10= 0 (NO)

Likewise:

x^2 + (x+2)^2 = 100

x^2 + x^2 +4 + 4x = 100

2x^2 + 4x + 4 = 100

2x^2 + 4x - 96 = 0

3) x^2 + 2x - 48 = 0 (F)

To sum up: that's what apply:

1) 0.5 x(x+2) = 24 (A)

2) x^2 + 2x - 48 = 0 (D)

3) x^2 + 2x - 48 = 0 (F)

6 0

3 years ago

Read 2 more answers

What's additive inverse? Like for example this expression 2-16 what's the additive inverse??

Stels [109]

Answer: The multiplicative inverse is 1/2 the addition inverse is -2

Step-by-step explanation:

Since the inverse of multiplication is division, use a fraction. The inverse of addition is subtraction.

4 0

3 years ago

Read 2 more answers

a survey of 504 citizens found that 378 of them favor a new bill introduced by the city. We want to find a 95% confidence interv

Viefleur [7K]

The lower limit of the interval is 0.712 if the survey of 504 citizens found that 378 of them favor a new bill introduced by the city.

<h3>What is a confidence interval?</h3>

It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.

We have:

A survey of 504 citizens found that 378 of them favor a new bill introduced by the city.

Sample proportion = p = 378/504 = 0.75

q = 1 - p = 1 - 0.75 = 0.25

$\rm SD = \sqrt{\dfrac{pq}{n}}$

$\rm SD = \sqrt{\dfrac{0.75\times0.25}{504}}$

SD = 0.01928

For 95% confidence interval Z value = 1.96

Lower limit = 0.75 - 1.96(0.01928)

= 0.712

Thus, the lower limit of the interval is 0.712 if the survey of 504 citizens found that 378 of them favor a new bill introduced by the city.

Learn more about the confidence interval here:

brainly.com/question/6654139

#SPJ1

3 0

2 years ago

Find the lateral area and surface area of the solid. Use the 2.5 by 2.5 square as the base. Round to the nearest tenth if necess

maxonik [38]

Answer:

Part 1) $LA=220\ ft^2$

Part 2) $SA=280.5\ ft^2$

L = 220 ft2 ; S = 280.5 ft2

Step-by-step explanation:

<u><em>The correct question is </em></u>

Find the lateral area and surface area of a rectangular prism. The base is a square 5.5 ft by 5.5 ft, and the height is 10 ft

Part 1) Find the lateral area

The lateral area of a rectangular prism is equal to

$LA=Ph$

where

P is the perimeter of the base

h is the height of the prism

we have

$P=4(5.5)=22\ ft$ ---> the perimeter of a square

$h=10\ ft$ ---> is given

substitute

$LA=22(10)=220\ ft^2$

Part 2) Find the surface area

The surface area of a rectangular prism is equal to

$SA=2B+LA$

where

LA is the lateral area

B is the area of the base

we have

$LA=220\ ft^2$

$B=5.5^2=30.25\ ft^2$ ----> area of a square

substitute

$SA=2(30.25)+220=280.5\ ft^2$

8 0

3 years ago

Read 2 more answers

What number has 2 hundreds and the tens digit is 9 more than the ones digit

SVETLANKA909090 [29]

290
Because 2*100= 200
and 9 is 9 more than 0

5 0

3 years ago