Answers
Answer:
39.27
Step-by-step explanation:
The area of a semi-circle is pi times the radius squared divided by 2. So basically standard area of a circle formula (pi times the radius squared) but then you add in the extra step of dividing it by 2.
The formula looks like this:
π × r² ÷ 2
The radius is half the diameter of the circle. So basically think of it as a line to the middle of the circle. Our diameter is 10, (the diameter is the entire length of the circle. It gives us this already. If you need diameter and only have the radius add the radius together twice or multiply it by 2 to get the diameter. Fun fact..?)
and it tells us to substitute pi for 3.142.
So, plugging our numbers in we get:
3.142 x 5^2 ÷ 2 = 39.275.
Cut out the 3rd decimal place (5) as it tells us to only include the first 2 decimal places, and we finally end up with 39.27.
Hope this helps and have a nice day!
Related Questions
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!
Write an expression that is equivalent to 3k - 18
Answers
Answer is 3(k-6)
Answer:
-18 + 3k
3k - 6
24k - 48
Step-by-step explanation:
thats just to name a few of the infinite possibilites
What is the slope of a line that passes through the points (-2,4) and (-6, 12)?
-2
2
-1/2
1/2
Answers
-2- -6 = 4
4-12= -8
-4/8 = -1/2
Answer:
-2
Step-by-step explanation:
first, you want to graph your points on a graph. A really good online graphing calculator i like is called desmos.
next, slope is rise over run. count how many units up or down from leftmost point to the other. in this case it is -8.
third, find the run part of the slope by counting units right or left from the leftmost point to the other. in this case it is 4.
last, but the two numbers together in a fraction and simplify. rise over run.
-8/4 which simplifies to -2/1 which is the same thing as -2
how many does this have
Answers
ILL MARK AS BRAINLESS PLS HELP
Answers
hippo- kilometers
fingernail clipping- millimeter
whiteboard- meters
the border between the U.S and Canada- miles
hope this helped; have a great day :)
Someone Please Help ME!
Answers
question 5 : b
question 6 : a
In the figure, if l and k are parallel lines, what is the value of x+y in degrees?
Answers
Answer:
62
Step-by-step explanation:
x + 149 = 180 so
x = 31
y + 149 = 180 so
y = 31
31 + 31 = 62
need help on this thank you
Answers
B. 8.36
For the first one
Help me plssss Which inequality is represented by the graph below? Check all that apply.
O x>9
O x<9
O any rational number greater than or including 9
O any rational number less than or including 9 O any rational number greater than 9
O any rational number less than 9
Answers
Answer:
B
Step-by-step explanation:
im sorry if its wrong, but it's an open circle and the values that the arrow is including are less than 9.
Answer: 2,4,5
Step-by-step explanation:
The circumference of a circle is 18.45 yards.
What is the radius of the circle, in yards? Round your answer to the nearest tenth.
Answers
Answer:
the radius is 2.94
Step-by-step explanation:
first divide the circumference by pie 3.14
the answer you get will be 5.8 is your diameter now divide 5.8 by 2 you get 2.935 round up your answer and it is 2.94 your radius
Reese is using a coin to predict the gender of the puppies born to her dog. According to Reese's model, which is the probability that a litter of 5 puppies will be all males? StartFraction 1 over 32 EndFraction StartFraction 1 over 16 EndFraction StartFraction 1 over 10 EndFraction One-half
Answers
Answer:
[tex]\frac{1}{32}[/tex]
Step-by-step explanation:
According to Reese's model, let the head of the coin represent male, and the tail represents female. The outcome can either be a male or a female.
Total outcome = 2
pr(male) = [tex]\frac{1}{2}[/tex]
pr(female) = [tex]\frac{1}{2}[/tex]
Therefore the probability of male equals the probability of females i.e [tex]\frac{1}{2}[/tex].
Therefore,
pr(a litter of 5 puppies will be males) = [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex] x [tex]\frac{1}{2}[/tex]
= [tex]\frac{1}{32}[/tex]
According to Reese's model, the probability that a litter of 5 puppies will be males is [tex]\frac{1}{32}[/tex].
Answer:
I think that it's 1/32 if i'm not right pleas tell me.
Step-by-step explanation:
following data, what would be the value of x?
Answers
Answer:
The answer is C. 10
Step-by-step explanation:
Answer:
Step-by-step explanation:
question please
please help me im stuck on this question 20 POINTS!!!
Answers
Step-by-step explanation:
1; x <-2 (this one has the line under the sign)
2;x>2
3;x-2<0
4;2<x ( this one has the line under the sign)
5; -2<x
1
Which fraction is equivalent to 7?
ool
CON
3
24
4
24
Answers
Answer:
its 4/24 :)))))))))))))))))
If you earn $13/hour and you work 2 hours overtime at a rate of time and a half, how much will you earn for each hour of overtime?
Answers
Answer:
32.50
Step-by-step explanation:
It is simple. You need to know the basics of money, fractions, and well... Math! :)
if you take 13 and multiply it by 2 you get 26
Take the 26 and put it aside -------------> 26
divide 13 in half. that would be 6.50
6.50 + 6.50 = 13
Now get the 26 --------------------------> 26
and add 6.50 to 26.
That would be 32.50!
Please make sure to follow and like! :)
What are the coordinates of the x-
intercept of the line in the graph
shown below?
Answers
SOMEONE PLZ HELP I HAVE TILL TMR TO GET A 49% up
Answers
Answer:
its a
Step-by-step explanation:
The graph shows a function f(x). Determine the following values.
F^-1 (4)=
F^-1 (-5)=
F^-1 (0)=
Answers
Answer:
f^-1(4) = 2
f^-1(-5) = -4
f^-1(0) = 0
Step-by-step explanation:
To find the inverse of the function, we simply switch the places of x and y
You simply find the value given on the y-axis and trace to the x-axis
Thus, we have the following ;
f^-1(4) = 2
f^-1(-5) = -4
f^-1(0) = 0
Answer:
2
-4
0
Step-by-step explanation:
y=mx+
finish the equation
Its one of the options
M
B
F
C
Answers
Answer:
b
Step-by-step explanation:
y = mx + b
m is the slope and b is the y-intercept
If a sales person earns a 37% commission and has a sell for $345. Determine the commission the salesperson will make
Answers
Answer:
128.39
Step-by-step explanation:
37% -----> 0.37 x 347= 128.39
Write an equation for the line with slope -5 and point (2,4).
Answers
Plug in the point
4 = -5(2) + b
4 = -10 + b, b = 14
Solution: y = -5x + 14
The manager at the mall is buying candy canes to decorate the 15 trees in the mall. She wants each tree to have 24 candy canes. How many candy canes should she purchase?
Answers
Answer:
she will need to buy 360 candy canes :>
merry christmas! and brainliest pls i needit and i hate to beg
Step-by-step explanation:
Answer: The answer is 360
Step-by-step explanation: 15 x 24 = 360
Which expressions equal zero?
A) -52 + 52
B) 12 +(-1
C) 6-(-6)
D) -27 +(-27)
E) -83 -(-83)
Answers
Answer:
A,B,E
Step-by-step explanation:
I checked on the usa test prep and its what those three
The options satisfying expressions that result to zero are,
A. - 52 + 52.
E. - 83 - ( - 83).
What are additive and multiplicative inverses?A number's additive inverse is a number that is added to it until the result is zero.
A number multiplied by another such that the result is 1 is the multiplicative inverse of that number.
A number added to it's additive inverse results to zero.
From the given options the only options that satisfies the result to be zero
are,
- 52 + 52.
- 83 - (- 83).
= - 83 + 83.
As the negative signs distribute to make it a positive number.
learn more about additive and multiplicative inverses here :
https://brainly.com/question/13715269
#SPJ2
SOMEONE PLEASE HELP
I actually need help please don’t answer if you don’t know and don’t say random things in the answers. Can someone explain how to solve this I don’t need the answers I just need to know how to solve
Answers
Answer:
∠D = 18.4°Step-by-step explanation:
use the formula
tanФ⁻¹ = y/x
where y = 3
x = 9
plugin values into the formula:
tanФ⁻¹ = y/x
= 3/9
tanФ⁻¹ = 0.3
Ф = inv. tan 0.3
Ф = 18.4°
therefore, the angle D = 18.4°
can someone at least give me an idea on how to do this?.
all i have rn are 12 points and ill give brainlynest
Answers
Answer:
fbhbgdbd
Step-by-step explanation:
which expression is equivalent to the given expression? 3x^2+5x-7(x^2+4)
Answers
Answer:
-(4 x^2 - 5 x + 28)
-4 x^2 + 5 x - 28
-1\/16 (8 x - 5)^2 - 423\/16
Step-by-step explanation:
any of these equations are equal to 3x^2+5x-7(x^2+4)
The equivalent expression is -4 x² + 5 x - 28.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Given:
3x²+5x-7(x²+4)
Now,
-(4 x² - 5 x + 28)
-4 x² + 5 x - 28
-1\/16 (8 x - 5)² - 423\/16
Hence, the equivalent expression is -4 x² + 5 x - 28.
Learn more about equation here:
https://brainly.com/question/10413253
#SPJ5
Core Algebra
Englis
Solving for an Unknown Using the Distributive Property
180(n-2)
The equation a = represents the angle measuresya, in a regular n-sided polygon. When the equation is
solved for n, n is equal to a fraction with a denominator of a - 180. What is the numerator of the fraction?
Answers
Answer:
-360
Step-by-step explanation:
I got it right
help PLEASEEEEEEEEEEEEEEEEE
Answers
Answer:
B ; Point B
Step-by-step explanation:
ok to be honest I really don't know
20 point question pls help
Answers
Plz help with question 16
Answers
Answer:
1
Step-by-step explanation:
Please very urgent please give me a correct answer!
Answers
Answer:
20%, 40%, 60%, 80%
Step-by-step explanation:
0 to 1/10 to 2/10 to 3/10 to 4/10 to 5/10 to 6/10 to 7/10 to 8/10 to 9/10 then to 1.