Answer:
164 tiles
Step-by-step explanation:
Per the above details, we will require tiles along all the sides of the swimming pool ,hence the circumference of the pool is denoted as;
= 2(wide + long)
Wide = 30 feet
Long = 50 feet
Circumference = 2(30 + 50)
Circumference = 2(80)
Circumference = 160.
It means that minimum of 160 tiles of 1 ft length is required, however, we will also require tile on each of the corners(4), total equals
= 160 + 4
= 164 tiles
A total of 164 tiles are there surrounding the pool.
b.(–3, 49)
c.(3, 25) and (7, 9)
d.(–3, 49) and (–7, 65)
Answer: c.(3, 25) and (7, 9)
y = –x^2 + 6x + 16 and y = –4x + 37
Plug in -4x+37 for y in first equation . It becomes
Combine like terms. add 4x and subtract 37 on both sides
Divide the whole equation by -1 to remove negative sign from -x^2
Now factor the left hand side
(x-7)(x-3) = 0
x-7 =0 and x-3=0
x= 7 and x=3
Now we find out y using y = –4x + 37
when x= 7 , then y=-4(7) +37 = 9
when x= 3, then y=-4(3) + 37 = 25
We write solution set as (x,y)
(7,9) and (3,25) is our solution set
Step-by-step explanation:
NOT list 1 there is only one name posted
NOT list 2 some of the results have only one name
YES list 3 it has two names per result and some of the names repeat...consistent with drawing and replacement
NOT list 4 it has THREE names listed....there is only two drawings
Domain is {2, 3}, Range is {2}
Domain is {2}, Range is {2, 3}
Domain is {2, 3}, Range is {2, 3}
Answer:
I agree with C
Step-by-step explanation:
Answer:
To find the third directional cosine, we need to use the property that the sum of the squares of the directional cosines is equal to 1.
Let's denote the three directional cosines as cosα, cosβ, and cosγ. Given that two directional cosines are equal to 1/2 and 1/3, we can set up the following equations:
cosα = 1/2
cosβ = 1/3
To find cosγ, we can rearrange the equation for the sum of the squares of the directional cosines:
cos²α + cos²β + cos²γ = 1
Substituting the given values, we have:
(1/2)² + (1/3)² + cos²γ = 1
Simplifying the equation, we get:
1/4 + 1/9 + cos²γ = 1
To solve for cos²γ, we can combine the fractions:
(9/36) + (4/36) + cos²γ = 1
(13/36) + cos²γ = 1
Now, we can solve for cos²γ by subtracting 13/36 from both sides:
cos²γ = 1 - 13/36
cos²γ = 23/36
Taking the square root of both sides, we find:
cosγ = √(23/36)
Since we are looking for the third directional cosine, there are two possible solutions, one positive and one negative. So, the third directional cosine can be either √(23/36) or -√(23/36).
In conclusion, the third directional cosine, cosγ, is either √(23/36) or -√(23/36).