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sergeinik [125]

3 years ago

12

What is an apparent solution

1 answer:

NNADVOKAT [17]3 years ago

7 0

Answer:

an apparent solution that must be rejected because it does not satisfy the original equation.

Step-by-step explanation:

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The figure shows the layout of a symmetrical pool in a water park. What is the area of this pool rounded to the tens place? Use

k0ka [10]

Answer:

$2489ft^{2}$

Step-by-step explanation:

The pool are is divided into 4 separated shapes: 2 circular sections and 2 isosceles triangles. Basically, to calculate the whole area, we need to find the area of each section. Due to its symmetry, both triangles are equal, and both circular sections are also the same, so it would be enough to calculate 1 circular section and 1 triangle, then multiply it by 2.

<h3>Area of each triangle:</h3>

From the figure, we know that <em>b = 20ft </em>and <em>h = 25ft. </em>So, the area would be:

$A_{t}=\frac{b.h}{2}=\frac{(20ft)(25ft)}{2}=250ft^{2}$

<h3>Area of each circular section:</h3>

From the figure, we know that $\alpha =2.21 radians$ and the radius is $R=30ft$ . So, the are would be calculated with this formula:

$A_{cs}=\frac{\pi R^{2}\alpha}{360\°}$

Replacing all values:

$A_{cs}=\frac{(3.14)(30ft)^{2}(2.21radians)}{6.28radians}$

Remember that $360\°=6.28radians$

Therefore, $A_{cs}=994.5ft^{2}$

Now, the total are of the figure is:

$A_{total}=2A_{t}+2A{cs}=2(250ft^{2} )+2(994.5ft^{2})\\A_{total}=500ft^{2} + 1989ft^{2}=2489ft^{2}$

Therefore the area of the symmetrical pool is $2489ft^{2}$

3 0

2 years ago

WILL GIVE BRAINLIEST!

olga_2 [115]

Answer:

This is complicated

Step-by-step explanation:

UHM

5 0

2 years ago

A construction crew is lengthening a road. The road started with a length of 59 miles, and the crew is adding 3 miles to the roa

AlekseyPX

L = total length

D = number of days

they add 3 miles per day which = 3D

equation: L = 59 +3D

if they worked for 34 days, replace D with 34 to get:

L = 59 +3(34) =

L=59 + 102

L=161 miles total length after 34 days

5 0

3 years ago

Consider the reflection of parallelogram PQRS across the line of reflection wy

solniwko [45]

Answer:

Consider the reflection of the parallelogram PQRS across the line of reflection wy if RR = 14 Then RZ= If SX=5 then = 5

Step-by-step explanation:

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2 years ago

HELP QUICKKKKKK PLEASEEE

Misha Larkins [42]

The answer is d because it 0 has more than one outcome and 0 needs to only have one outcome for it to be a function

8 0

2 years ago