Answers
Answer:
[tex] 2228 \: {ft}^{2} [/tex]
Step-by-step explanation:
Required flooring cover
= Area of the school playground
= Area of square with side 40 ft + Area of semicircle with radius (40/2) i.e. 20 ft
[tex] = {(40)}^{2} + \frac{1}{2} \times 3.14 \times {(20)}^{2} \\ \\ = 1600 + \frac{1}{2} \times 3.14 \times 400 \\ \\ = 1600 + 3.14 \times 200 \\ \\ = 1600 + 628 \\ \\ = 2228 \: {ft}^{2} [/tex]
Related Questions
The height of a right cylinder is 6r, where r is the radius. Write a function f in simplest form that represents the ratio of the surface area to the volume.
Answers
The price of an item has been reduced by 35%. The original price was $25.
Answers
Step-by-step explanation:
what thanks for free points btw
Answer:
not sure ans sorry if its wrong but i think its 8.75
A line segment has endpoints at(2,4) and (6,10). What are the coordinates of the midpoint of the line segment?
Answers
Answer:
I think the midpoint is (4,7)
Step-by-step explanation:
g A test was conducted to determine if there is a difference between Canadian and American average heart rates. A group of 36 Canadians and 34 Americans were randomly selected and their heart rates measured in beats per minute (bpm). The mean heart rate for Canadians was 68.5 and 70 for Americans. The pooled standard deviation of 2.0 beats/minute was calculated. Estimate a plausible range of differences between the mean heart rate of Canadians and Americans. What statistical procedure should be used to answer this research question
Answers
Answer:
The test statistic | t | =4.45
Step-by-step explanation:
Step(i):-
Given that the first sample size n₁ = 36
Given that the second sample size n₂ = 34
Mean of the first sample x₁⁻ = 68.5
Mean of the second sample x₂⁻ = 70
Step(ii):-
Test statistic
[tex]t = \frac{x^{-} _{1}-x^{-} _{2} }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} } } )}[/tex]
[tex]t = \frac{68.5-70}{\sqrt{2(\frac{1}{36}+\frac{1}{34} ) } }[/tex]
[tex]t = \frac{-1.5}{0.337} = -4.45[/tex]
The test statistic | t | = |-4.45| =4.45
The test statistic is given by t and t is calculated with the help of the test statistic formula. The value of t is 4.45.
What is test statistics?The test statistic summarises the observation data into a unique number using central tendency, the variation, sample, and size in your statistical model.
The given information will be shown below.
The first sample size n₁ = 36
The second sample size n₂ = 34
The mean of the first sample x₁ = 68.5
The mean of second sample x₂ = 70
Then the test statistic will be given as
[tex]\rm t = \dfrac{x_1 - x_2}{\sqrt{S^2 (\dfrac{1}{n_1}+\dfrac{1}{n_1})}} \\\\\\\t = \dfrac{68.5 - 70}{\sqrt{2 (\dfrac{1}{36} + \dfrac{1}{34})}} \\\\\\t = \dfrac{-1.5}{0.337}\\\\\\t = -4.45[/tex]
The test statistic | t | = |–4.45| = 4.45
More about the test statistic link is given below.
https://brainly.com/question/15236063
Find the area of the triangle pictured above.
Answers
Answer:
24.5
Step-by-step explanation:
7^2=49
49/2=24.5
Jerome is a co-worker of a small company and received 1/3 of the company’s profits this year. What were the company’s overall profits if Jerome made 150,000? Type an equation and solve
Answers
Answer:
The company's overall profits were 450,000.
Step-by-step explanation:
We know that Jerome received 150,000. This 150,000 also counts as 1/3 of the profit, so if we put it as an equation, it gives us this:
1/3x = 150,000 We need to work out how much the overall profits are, which I've labelled as x.
x = 450,000 Here we multiply 150,000 by 3 to get x on its own, or you could also divide by 1/3.
I hope this makes sense to you. ^-^ If not, do let me know.
MULTIPLE CHOICE PLS ANSWER THANKS
Answers
Answer:
I think answer is B
B.10x+150=180
Y=3/4x-2 for slope plz heeeeeeeeeeeeeeeeeelp
Answers
Answer:
m = 3/4
Step-by-step explanation:
That's the correct answer for you :)
Question Help About 6% of the population of a large country is hopelessly romantic. If two people are randomly selected, what is the probability both are hopelessly romantic? What is the probability at least one is hopelessly romantic? Assume the events are independent. (a) The probability that both will be hopelessly romantic is (Round to four decimal places as needed.)
Answers
Answer:
0.0144
Step-by-step explanation:
Answer:
Step-by-step explanation:
Both
P(both) = 6/100 * 6/100 = 36/10000 = 0.0036
At Least one
Just One
94/100 * 6/100 = 564/10000 = 0.0564
Both 0.0036
Total 0.06
the population of staten island is 7.6*10^3. the population of Brooklyn is 2.3*10^5. how many people are there in Brooklyn and Staten Island?
Answers
Answer:
1
Step-by-step explanation:
1
The arc length of this circle is 9.42 inches. Determine the length of the radius.
Complete your work in the space provided.
Answers
Answer:
Radius = 5.996958 (They probably just want “6”).
Step-by-step explanation:
9.42x4=37.68 (perimeter)
Perimeter=2[tex]\pi[/tex]r
37.68÷2[tex]\pi[/tex]=r
5.996958=r
Which of the following is equivalent to the complex number i24?
Answers
Answer: 1
Step-by-step explanation:
Rewrite as (i^4)^6
Rewrite i^4 as 1
Rewrite i^4 as (i^2) ^2
((i^2)) ^2)6
Rewrite i^2 as -1
((-1) ^2) 6
Raise -1 to the power of 2
1^6
One to any power is 1.
m= -3 b= -1 slope intercept form
Answers
Answer:
y = -3x-1
Step-by-step explanation:
all u had to do was plug it into y = mx+b
WALLAHI HELP ME PLEASE WALLAHI I BEG
Answers
Answer:
x+2 y-1
Step-by-step explanation:
this would be moving 2 over on x and subtracting down one on the y and a shrink
In ΔRST, the measure of ∠T=90°, RS = 4.9 feet, and ST = 2.7 feet. Find the measure of ∠S to the nearest tenth of a degree.
Answers
Step-by-step explanation:
step 1. a diagram is important and can be uploaded. you will get a quicker answer with a diagram
step 2. triangle RST is a right triangle so we can use trigonometry to find <S
step 3. the adjacent side of <S is ST and the hypotenuse is RS so we will use cos
step 4. cosS = adj/hyp = ST/RS = 2.7/4.9
step 5. <S = 56.6° using inverse cos.
Answer:
42.43
Step-by-step explanation:
This is because you had to divbide by 3
Find the volume for the regular pyramid. 4cu units, 6 cu units, or 12 cu units
Answers
Answer:
4 cu. units
Step-by-step explanation:
1/3x2x2x3=4 cu. units
Answer:4cu unit
Step-by-step explanation:
2*2*3=12
12* 1/3 =4
if x squared by 3 equal 64 what is the value of x
Answers
Answer:
4
Step-by-step explanation:
x^3= 64
x= 64^1/3
x=4
Answer:
4
Step-by-step explanation:
4x4=16
16x4= 64
Please help ASAP
Find the slope of the line graphed below.
Answers
Answer:
3/4
Step-by-step explanation:
Hope this helps! :)
i have $2 in my pocket what might be in my pocket (number puzzle)
Answers
Answer:
$2
Step-by-step explanation:
the slope of a line is 1, and the y-intercept is -1. what is the equation of the line written in slope-intercept form?
Answers
Answer:
y=x-1
Step-by-step explanation:
How many centimeters are in 3.2 inches? [1 inch = 2.5 cm] Show your work.
Answers
Answer:
8 cm
Step-by-step explanation:
Just multiply 3.2 by 2.5
3.2 x 2.5 = 8
Answer:
Sure, your answer is 8
Step-by-step explanation:
3.2 * 2.5=8
In a poll, 417 students voted. Nominee D received 2/3 of the votes. How many did nominee D receive?
Answers
= 278
Answer:
278 votes
Step-by-step explanation:
[tex]2/3 * 417 = 278[/tex]
Find the area and perimeter of the polygons formed by the algebra tiles below: area: y X perimeter: 1 area: perimeter: 2
Answers
Answer:
The answer is below
Step-by-step explanation:
a)
The area of the figure = sum of the area of the individual polygons
The area of the figure = x + 1 + y + 1 + x = 2x + y + 2
The perimeter of the figure = sum of the length of the sides = 2(1 + (x + 1 + y + 1 + x)) = 2(2x + y + 3) = 4x + 2y + 6
b)
a)
The area of the figure = sum of the area of the individual polygons
The area of the figure = y² + xy + 1 + 1 + 1 = y² + xy + 3
The perimeter of the figure = sum of the length of the sides = (y + 1) + x + y + (y + 1) + y + 1 + 1 + 1 + x + 1 = 4y + 2x + 6
You don’t have to answer both. Will give brainliest if you help.
Answers
9514 1404 393
Answer:
15) 27
16) 6144
Step-by-step explanation:
15) Jill's sequence is exponential:
3 9 27 81 243
Marlando's sequence is linear:
15 21 27 33 39
The first number in both patterns is 27.
__
16) The number of cards ordered is ...
(256 pkgs)(24 cards/pkg) = 6144 cards
Please help will give brainliest answer
Answers
l=5w^2-3w-4
A=w•l
A=4w^3(5w^2-3w-4)
A=20w^5-12w^4-16w^3
Good luck
7 9 4
-2 4 -3
3 10 0
Inverse of this
Answers
Answer:
The answer is -7, -9, -4, 2, -4, 3, -3, -10, -0
Step-by-step explanation:
If you see them in the number line, the integers on the left are negative and the integers on the right is positive. Therefore, negative numbers are inverses of positive numbers. For example, 1 is the inverse of -1.
Can y’all help me please
Letters A through F
Please:((
Answers
Answer:
can you take another photo
Step-by-step explanation:
A boat travels 20 miles in 5 hours
(with a constant speed). How far can it
travel in 53 hours (with the same
speed)?
Answers
Answer:
212 miles
Step-by-step explanation:
the boat is going 4mph so in 53 hours it would be 212mi
The area is ___ square meters. UH HELP I need the steps if anyone can!?
Answers
27m squared
STEP BY STEP:
-Find the area of the rectangle (6*3), which is 18
-Find the area of the triangle (6*2)/2=6
-The second triangle (3*3)/2=3
-Add all the answers up (27)
-Add the label (meters squared)
- your answer is 27m squared
Find the equation of the line passing through the point (8, -4) and slope -4.
A: y + 4x = 22
B: y + 4x = 28
C: y - 4x = 28
D: y + x = 36
Answers
Answer:
y+4x=36
Step-by-step explanation:
the answer isn't in the choice