The number of bricks needed to border the circular pool is 6.28r.
The circumference of a circle is the distance around the circle which is 2πr.
The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.
Given, Mr. Cortez is putting a brick border around his circular pool.
So, he is boarding the circumference of the circular pool which has a distance of 2πr.
Now, the bricks are 1 foot in length.
Therefore, the number of bricks needed is,
= 2πr/1
= 2πr
= 6.28r
Therefore, the number of bricks James need to buy to build the border is 6.28r.
Learn more about circles here:
brainly.com/question/29142813
#SPJ4
MARKING PEOPLE AS BRAINLIST ONLT ANSWER IF U KNOW
Answer:
ITS B
Step-by-step explanation:
A hot air balloon is traveling at a altitude of 2400 feet. It begins to descend at a rate of 75 per minute. What is an expression that represents the rate of descent for the hot air balloon
Answer:
y=-75x+2400
Step-by-step explanation:
y is the height
-75 is the rate of change so you put that before your x
2400 is your starting value/y intercept
not very good explanation but hope this helps
May someone please help me? This is due today and I'm confused.
Answer:
2(x - 8) = 2x - 16
2(-8) + x + x = -16 + 2x or 2x - 16
2(3x + 2) = 6x + 4
6x - 2(2x + 8) = 2x + 8
-2(-3x - 2) = 6x + 4
-2(-x + 8) = 2x + 16
-14 + 3 + 2(9) + 3x = 7 + 3x
2x + 2(2x + 2) = 6x + 2
Step-by-step explanation:
I hope this helps!
Answer:
#1 = 2x-16
#2=2(-8+x)
#3 i don't know
#4= 2(x-8)
#5=6x+4
#6=2x-16
#7=7+3x
#8=2(3x+2)
please lemme know if its correct
Staci pays $32.70 for 5 cell phone cases. Each case costs the same amount.
How much does each case cost? Enter your answer in the box.
To figure out a special number, Tammi’s mother was supposed to double her age and then add 4. Instead, Tammi’s mother added 4 to her age and then doubled that number. Tammi’s mother thought the special number was 80. What was the special number supposed to be?
Answer:
Step-by-step explanation:
36 plus 4 x 2 = 80 what her mom got but it’s 76 because 36x2 is 72 and 72 plus 4 is 76.
PLS help me
if you get it right i will give brainliest
Given:
In a right angle triangle,
Perpendicular = 8 units
Base = x units
Hypotenuse = 17 units
To find:
The exact value of x.
Solution:
The given triangles is a right angle triangle. So, side lengths form a Pythagorean triplet.
[tex](Hypotenuse)^2=(Base)^2+(Perpendicular)^2[/tex]
[tex](17)^2=(x)^2+(8)^2[/tex]
[tex]289=x^2+64[/tex]
[tex]289-64=x^2[/tex]
[tex]225=x^2[/tex]
Taking square root on both sides.
[tex]\pm \sqrt{225}=x[/tex]
[tex]\pm 15=x[/tex]
Side cannot be negative. So, [tex]x=15[/tex].
Therefore, the required value is [tex]x=15[/tex] and yes, the side lengths form a Pythagorean triplet, i.e., (8,15,17).
Solve 4k−16
the solution is __
2. graph the solution.
Write the equation of the line with the given information.
Slope: -2
y-intercept: 5
Answer:
your mom
Step-by-step explanation:
Solve the inequality 3x-1 < 2x+5
Answer:
x<6
Step-by-step explanation:
Solve for x
by simplifying both sides of the inequality, then isolating the variable.
Inequality Form:
x<6
can someone help please?
9514 1404 393
Answer:
0
Step-by-step explanation:
The expression ...
[tex]f^{-1}(1)[/tex]
can be read as "the value of x that makes f(x) = 1".
We can read that value from the graph. It is the y-intercept of the function f(x):
(0, 1)
The value of x that makes f(x) = 1 is 0. That is, f(0) = 1.
[tex]\boxed{f^{-1}(1)=0}[/tex]
What is the exact value of cos theta?
Answer:
C
Step-by-step explanation:
2 + yx; use x = 6, and y = 5
Answer:
answer: 32
Step-by-step explanation:
2+5*6
=32
NEED HELP WITH THIS MATH QUESTION, WILL GIVE BRAINLIST!!!! HELP ASAP
Answer:
b
Step-by-step explanation:
Answer:
32.4
Step-by-step explanation:
The equation for area of a triangle is a=1/2bh. So all triangles on outside have area of a=1/2x4.5x3.5. Then you multiply what you get times 3 bc there are three triangles. Then you add that number to the area of the inside triangle. Which you find by doing a=4.5x3.9x1/2
ILL MAKE BRAINLEST YOUR GONNA HAVE TO ZOOM IN BUT AM I RIGHT
A video game is now being sold at 22% off for a price of $31.20. What was the original price of the video game?
Can I please get some help really quick??
I need help on both please TwT
Answer:
1) fourth table
2) last option
i’ll give brainliest!
Brad made a graph showing how many students were absent from school every day last week.
2. how many students were absent on day3? explain how you know.
3.on which day were the greatest number of students absent? how many students were absent that day?
ANSWER:
2.) There are 5 students absent on day 3 because the dot is in the line of 5 in day 3.
3.) The 2 day is the greatest number of students absent beacause on that 2 day, 10 students were absent
I obviously know this is the answer
can someone help pleaseee its due soon
Answer:is a rectangle
Step-by-step explanation:
Answer:
rectangle
Step-by-step explanation:
Please tell me how to solve for x and y for these
Answer:
multiply 60×5 and get your answer for x then divide x by 5 and get why
45 is 26% of what number? Round to the nearest hundredth if necessary.
A. 11.7
B. 173.08
C. 1.73
D. 0.58
The graph shows the total numbet of inches of snow that fell in a town in February over ten year period. What is the approximate probability that Year 11 will have more than 15 inches of snow?
A. 0.6
B. 5
C. 6
D. 0.25
Plz hurry
Answer:
0.6
Step-by-step explanation:
The ratio of the perimeter of the rectangle ABCD to the perimeter of rectangle EFGH is 4:7. The value of x is
Answer:
x = ~8.76
Step-by-step explanation:
Since we know that the scale factor is 4:7, we can figure that 5 will be 4/7 the size of x.
4/7 = 0.571
5 / 0.571 = ~8.76
The sales tax on a sofa that that costs $575 was $43.13. What was the percent sales tax? (Sales tax in $ is given; Price is given; Calculate tax in%) Need to show work by writing formula, substitute numbers, rewrite correct answer with right unit (like $ or % etc)
change/original price x 100
43.13/575 = 0.07500869 X 100 = 7.5%
9x – 7 = 9x + h
What dose h equal to
Answer:
h= -7
hope this helps!!:)
Step-by-step explanation:
Answer: h= -7
Step-by-step explanation:
help please! area of rectangles and squares.
Answer:
2x squared + 25
Step-by-step explanation:
Step-by-step explanation:
area of rectangle
height×base
(2x-5)(2x-2)=
=4x^2-4x-10x+10
=4x^2-14x+10
(we get quadratic equation)
a=4 b=-14 c=10
firat find discriminant with formula:
D=b^2-4ac(-14)^2-(4×4×10)=196-160=36
now find x1 and x2 with formula:
X=(-b±√D)/2a
x1=(14+√36)/8=20/8=2.5
x2=(14-√36)/8=8/8=1
lets put values :
if we put x2 value as a base, which is 1 in given height and base, we will get 2(1)-2=0. measure of amy side can't be 0.
and if we put x2 in height, it will give us zero.
so no matter which one we put as value. we will get 0cm^2. so i think it cant be detected. im sorry if im wrong
A zoo has 24 monkeys and 9 Lions. What is the ratio of lions to monkeys in simplest form
A. 25/9
B 9/24
C 3/8
D 8/3
Answer:
3/8
Step-by-step explanation:
because you have to divide 24 and 9 by 3 then it but lions before monkeys
HELP ASAP Solve for x. Show or explain your work.
Answer:
[tex]x=4.5[/tex]
Step-by-step explanation:
From AAA, both triangles in this figure are similar. Therefore, we can set up the following proportion:
[tex]\frac{x}{9}=\frac{x+3}{15}[/tex] or [tex]\frac{x}{9}=\frac{3}{6}[/tex].
Cross-multiplying, we get:
[tex]6x=9(3),\\6x=27,\\x=\frac{27}{6}=\fbox{$4.5$}[/tex].
help me with this please :)
Answer:
Parenthesis
Exponents
Multiplication and Division
Addition and Subtraction
Hope this helps!
Please help I don’t know what the answer is
Answer:
its C
Step-by-step explanation:
Which shows the distributive property?
A 5x + 2 = 2 + 5x
B 5(x + 2) = 5x + 10
C 5(x + 2) = 5(2 + x)
D 5x + 2 = 2 - 5x
Answer:
Step-by-step explanation:
It is C