Answer:
To find the radius, just take half of the diameter. The answer is 2.
Step-by-step explanation:
Semicircle Area and Perimeter
Area (A)
6.2832in²
A = πr²/2 = 2 * π [in²] ≈ 6.2832 [in²]
Perimeter (L)
10.2832 in
L = πr + d = 2 * π + 4 [inch] ≈ 10.2832 [inch]
Hope this helped!!!
The radius of the semicircle is 2 kilometers.
What is a diameter?A straight line that runs through the sideways of a body or figure, particularly a circle or sphere, is called as a diameter of a circle or sphere.
Given:
The diameter of a semicircle is 4 kilometers.
Then the radius of the semicircle,
= diameter / 2
= 4/2
= 2 kilometers.
Therefore, the radius is 2 kilometers.
To learn more about the diameter;
https://brainly.com/question/5501950
#SPJ2
What is sin 0 when cot 0 = {?
0
(1,0)
sin e
Rationalize the denominator if necessary.
9514 1404 393
Answer:
(√6)/3
Step-by-step explanation:
The relation between cot(x) and sin(x) is ...
sin(x) = 1/√(cot(x)^2 +1)
Filling in the given value, we have ...
[tex]\displaystyle\sin{\theta}=\frac{1}{\sqrt{\left(\frac{\sqrt{2}}{2}\right)^2+1}}=\sqrt{\frac{2}{3}}\\\\\boxed{\sin{\theta}=\frac{\sqrt{6}}{3}}[/tex]
Step-by-step explanation:
#CarryOnLearningEvaluate (a3)4
What is the answer please?
Answer: -3 to the fourth power means we are multiplying -3 four times. Hence answer is 81 and not -81
Step-by-step explanation:
Share out 184 snails between 8 salamanders.how many snails does each salamander get.
The answer is 23 hope this helped
Define the following terms using your own words. (2-3 sentences only)
1. Frequency
2 Class size
3. Ogive
4. Variance
5. Range
Answer:
Frequency: the rate at which something occurs over a particular period of time or in a given sample.Class size :Class size is the average number of students per class, calculated by dividing the number of students enrolled by the number of classes..O give :Ogive is the curve which is constructed by plotting cumulative frequency data on the graph paper, in the form of a smooth curve.Variance: The term variance refers to a statistical measurement of the spread between numbers in a data set. Range: The range, the difference between the largest value and the smallest value.a system of equations is shown x-2y=-5 2x+4y=14
Answer: here you go
Step-by-step explanation:
A) 2x + 4y = 14
B) 4x + y = 20
If you multiply equation A by -2, then when the equations are added, the x will be eliminated.
The solutions are:
X = 4.714285714285714
Y = 1.1428571428571428
x - 2y = 0
2x + y = 5
A cylinder soup has a radius of 1,6 in and is 5/7 in. tall what is the volume
Answer:
[tex]V=0.0623\ inch^3[/tex]
Step-by-step explanation:
Given that,
The radius of cylinder, r = 1/6 inch
The height of the cylinder, h = 5/7 inch
We need to find the volume of the cylinder. The formula for the volume of a cylinder is given by :
[tex]V=\pi r^2 h\\\\=3.14\times (\dfrac{1}{6})^2\times \dfrac{5}{7}\\\\V=0.0623\ inch^3[/tex]
So, the volume of the cylinder is equal to [tex]0.0623\ inch^3[/tex].
helppp meee plssssss
Answer:
[tex]y\leq -6[/tex]
Step-by-step explanation:
[tex]\frac{1}{2}y \leq -3[/tex]
Our inequality requires first to solve for y.
To solve for a variable, we must isolate it.
In this case, first, we can multiple by the inverse of the fraction which is 2.
[tex]\frac{1}{2}y\leq -3\\[/tex]
[tex]2(\frac{1}{2}y)\leq -3(2) \\[/tex]
1*y=y and -3*2=-6
So our inequality stands like this -
[tex]y\leq -6[/tex]
When graphing, it must look like this:
Simplify the Expression and EXPLAIN what you did and WHY.
-3(4m+3)+2m
Answer:
-10m-9
Step-by-step explanation:
open the bracket by multiplication
-3 × 4m= -12m
-3 × 3= - 9
-12m - 9 +2m
arrange like terms together
-12m +2m -9
-10m -9
what is the surface area, in square inches, of the container?
Answer:
62 in
Step-by-step explanation:
You can split up the rectangles and find the surface area of each on them add them
Hope this helps!
The most expensive type of life insurance is
O limited-payment life insurance
O term insurance
O endowment life insurance
O whole-life insurance
Find the product. Write the answer in scientific notation.
(5×10^−7)×(3×10^6)=
I GIVE BRANLIEST AND ALOT OF POINTS
Answer:
1.5
Step-by-step explanation:
Answer:
1.5
Step-by-step explanation:
A card game requires that you have a sum of 5 in order to win. Based on the cards shown below, will Cameron win the game? Look at the picture above
Answer:
D
Step-by-step explanation:
You wish to test H 0 : μ d = 0 versus H a : μ d < 0 at a significance level of 0.10. For the context of this problem, μ d = μ 2 − μ 1 where the first data set represents a pre-test and the second data set represents a post-test. You obtain pre-test and post-test samples for n d = 28 subjects. The average difference (post - pre) is ¯ x d = − 4.3 with a standard deviation of the differences of s d = 45.5 .
What is the test statistic?
Answer:
0.5
Step-by-step explanation:
Given :
H0 : μd = 0 VS H1 : μd ≠ 0
Test statistic :
xd / (sd ÷ √n)
Where ;
xd = mean difference = -4.3
sd = standard deviation of difference = 45.5
n = sample size = 28
The test statistic is thus :
-4.3 / (45.5 / √28)
-4.3 / 8.5986917
= 0.5000760
Hence, test statistic = 0.5
A circular flower garden has a radius of 19 ft that
has to be mulched. Each bag of mulch covers 32square feet. How
many bags of mulch are needed? Use TI = 3.14. Round to the
nearest whole number
Step-by-step explanation:
[tex]area \: of \: garden = \pi {r}^{2} \\ = 3.14 \times {19}^{2} \\ = 1133.54 \: {ft}^{2} \\ number \: of \: bags = \frac{area \: of \: garden}{area \: covered\: by \: bag} \\ = \frac{1133.54}{32} \\ = 36 \: bags[/tex]
How many ways can three people be selected from a group of seven people if order
DOES matter?
Answer:
210 ways
Step-by-step explanation:
The is a permution problem.
Formula for permutations of r things taken from n things is
[tex]P(n,r) = \frac{n!}{(n - r)!}[/tex]
[tex]\frac{7!}{(7 - 3)!} = \frac{7!}{4!} = 7*6*5 = 210[/tex] ways
35% of what number is 91?
I need step by step too
Answer:
29.12
Step-by-step explanation:
91 ×35/100 =2912/100
so 29.12
rewrite
3/20
and
2/15
so that they have a common denominator.
Answer:
9/60 and 8/60
Step-by-step explanation:
They both have the number 60 in common
a cylinder shaped water pitcher has a radius of 5 inches and a height of 12.5 inches find the surface area of the pitcher
A.5495 in² B. 54.95 in²
C.549.5 in² D. 5.495 in²
A cylinder shaped water pitcher has a radius of 5 inches and a height of 12.5 inches. Find the surface area of the pitcher.
Answer:-Given:-[tex] \bullet [/tex] Radius (r) of a cylinder shaped water pitcher = 5 inches.
[tex] \bullet [/tex] Height (h) of a cylinder shaped water pitcher = 12.5 inches.
To Find:-The surface area of the pitcher.
Solution:-We know,
Formula of Surface area of a cylinder is 2πr(r + h) sq. units.
So,
Surface area of the pitcher = 2 × 3.14 × 5(5 + 12.5)
Surface area of the pitcher = 31.4 × 17.5
Surface area of the pitcher = 549.5 in²
[tex] \therefore [/tex] The surface area of the pitcher is 549.5 in².
Hence, the option (C) 549.5 in² is correct. [Answer]
The surface area of the cylinder is 549.50 in².
What is the surface area of the cylinder?A cylinder is a three-dimensional object. It is made up of a prism with a circular base. The total surface area is the sum of the areas of the faces or surfaces of a 3-dimensional object
Total surface area = 2πr(r + h)
Where:
π = 3.14r = 5 h = height2 x 3.14 x 5 (5 + 12.5) = 549.50 in²
As part of the global economy, the United States plays the role ot:
A. the country with the lowest standard of living,
B. the largest of the developing countries,
O c. the country most focused on agriculture.
D. the most economically powerful country.
Answer:
D: the most economical powerful country
Step-by-step explanation:
The USA is the most economical powerful country. In the Great Depression, it affected the whole world.
Ann's rent increased from $1,200 to $1,350.
By what percent did her rent increase?
Answer: Percentage increase: 12.5%
Step-by-step explanation: (EXAMPLE) percentage increase/decrease = (Vnew - Vold) / Vold × 100%
Example #1
Price percentage increase from old value of $1000 to new value of $1200 is caluclated by:
percentage increase = ($1200 - $1000) / $1000 × 100%
= 0.2 × 100% = 20%
Answer:
12.5%
Step-by-step explanation:
1350 - 1200 / |1200| × 100% =
150 / 1200 × 100 = 12.5%
1 point
Jill's great grandfather is 92 years old. Jill is 12 years old. Jill is
approximately what percent of her great-grandfather's age?
st
Answer:
I do not know
Step-by-step explanation:
Write 34/5 as a mixed number. 4 5/6 3 4/5 6 4/5 6 5/4
Answer:
6 4/5
Step-by-step explanation:
Historically, about 53% of the population of a certain country believed that the planet's temperature was rising ("global warming"). A March 2010 poll wanted to determine whether this proportion had changed. The poll interviewed adults in the population, and said they believed that global warming was real. (Assume these adults represented a simple random sample.)
Required:
a. What percentage in the sample believed global warming was real in 2010?
b. Is this more or less than the historical 57%?
Answer:
(a) The proportion is 61.23%
(b) It is more than the historical 57%
Step-by-step explanation:
This question has missing details, and they are:
[tex]n = 926[/tex] ---- The Sample Adults
[tex]x = 567[/tex] -- Those that believe global warming was real
Solving (a): The proportion of those that believe.
This is calculated as:
[tex]p = \frac{x}{n}[/tex]
Substitute values for x and n
[tex]p = \frac{567}{926}[/tex]
[tex]p = 0.6123[/tex]
Express as percentage
[tex]p = 0.6123 * 100\%[/tex]
[tex]p = 61.23\%[/tex]
Solving (b) More or less than 57%
By comparison:
[tex]61.2\% > 57\%[/tex]
Hence, it is more than the historical 57%
Use the graph at the right. Find the vertices of the image of QRTW for a dilation with center (0,0) and a scale factor of 12.
Answer:
you need to insert the graph's picture lol
Step-by-step explanation:
can someone explain how to solve and graph this step-by-step?
HELP!!!!? ASP! PLSSSS #14
Please Help! (picture)
Step-by-step explanation:
f(g(x))
f(x-1)
(x-1)^2
x^2 -2x + 1
Christine's age is 6 more than Ken's age. Three times Ken's age plus 5 times
Christine's Age is equal to 46. How old is Christine?
Answer:
6x3+5=23
Step-by-step explanation:
Without establishing good credit, it would be most difficult to
A
find a job.
B
buy lunch.
с
buy a house.
D
make a minimum payment.
Answer:
It's gonna be C
Step-by-step explanation:
No explanation it's C.