Answers
Answer:
Area of the remaining board = 403 cm²
Step-by-step explanation:
Area of the remaining paper board = Area of the rectangle - Area of the semicircle
Area of the rectangle = Length × Width
= 28 × 20
= 560 cm²
Area of the semicircle = [tex]\frac{1}{2}\pi r^{2}[/tex]
= [tex]\frac{1}{2}(3.14)(\frac{20}{2})^2[/tex]
= 3.14 × 50
= 157 cm²
Area of the remaining board = 560 - 157
= 403 cm²
Related Questions
write an equivalent expression for each of the following by combining like terms
3a+4(5a - 4)=
5b -2(5a -b) + 10a
Answers
Answer:
17a - 16
7b
Step-by-step explanation:
Given the following expressions
3a+4(5a - 4)=
Expand
3a + 4(5a)- 4(4)
= 3a + 20a - 16
= 17a - 16
For the expression
5b -2(5a -b) + 10a
Expand
5b - 2(5a)-2(-b) + 10a
5b - 10a + 2b + 10a
= 5b + 2b -10a + 10a
= 7b + 0
= 7b
Does 514, 684, 855 make a right triangle
Answers
Answer:
No, it does not.
Step-by-step explanation:
This does not make a right triangle because in order to have a right triangle you must have 2 of the same numbers.
For example:
900, 800, 900 makes a right triangle
900, 800, 700 does not.
Hope this helped :D
11x - 2x + 15 = 8 + 7 + 9x
Help please
Answers
Answer:
15 it's in the equation
Step-by-step explanation:
11x-2x=9x 9x-9x=0
7+8=15
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
Let's solve your equation step-by-step.
11x − 2x + 15 = 8 + 7 + 9x
Step 1:
Simplify both sides of the equation.
11x − 2x + 15 = 8 + 7 + 9x
11x + −2x + 15 = 8 + 7 + 9x
( 11x + −2x ) + ( 15 ) = ( 9x ) + ( 8 + 7 )
( Combine Like Terms )
9x + 15 = 9x + 15
9x + 15 = 9x + 15
Step 2:
Subtract 9x from both sides.
9x + 15 − 9x = 9x + 15 − 9x
15 = 15
Step 3:
Subtract 15 from both sides.
15 − 15 = 15 − 15
0 = 0
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
if a cricket makes 36 chirps in a minute, how many chirps can it make in 15 seconds?
Answers
Answer:
9
Step-by-step explanation:
36 chirp / 60 seconds
60 / 15 = 4
36 / 4 = 9
Solve i dont know if this is one or 2 step equation
I need help with number 4
Answers
Answer:
-1=(5+x)/6
mulitply both sides by 6
-6=5+x
subtract both sides by 5
-11=x
i need help this is due tomorrow
Answers
Answer:
[tex]r=\frac{41}{14}[/tex]
Step-by-step explanation:
[tex]\frac{3r-2}{5} =\frac{5+2r}{8} \\\\8(3r-2)=5(5+2r)\\24r-16=25+10r\\24r-10r=25+16\\14r=41\\\\r=\frac{41}{14}[/tex]
Identify the vertex of the parabola and tell whether it is a minimum or a maximum.
Answers
Answer:
First parabola's vertex is (-2,2), which is a minimum.
Second parabola's vertex is (3,2), which is a maximum.
Step-by-step explanation:
Simply, a vertex of a quadratic is a graph's turning point.
The maximum and minimum can be identified by seeing if the graph curves up or down.
Maximum occurs when your graph is facing down.
Minimum occurs when your graph is facing up.
Consider the three isosceles triangles.
a. Find the value of x for each triangle
The value of x for the green triangle is ___°
The value of x for the purple triangle is ___°
The value of x for the red is ___°
Answers
The value of x for the purple triangle is 25 degrees
The value for x on the red triangle is 45 degrees
15,909 rounded to the nearest ten thousand
Answers
Answer:
Step-by-step explanation:
15909
16010
Answer:
20,000 i think :))
Step-by-step explanation:
I HOPE THIS HELPS YOU OUT WITH YOUR QUESTION! PLZ LET ME KNOW IF IT DID! IT MAKES ME FEEL GOOD THAT SOMEONE APPRECIATES IT! ANYWAY, IF YOU HAVE A FEW MINUTES PLZ GOT TO MY PROFILE AND THANK MY ANSWERS (THE MORE THE MERRIER)
Help with math hw please
Answers
Answer:
Please make sure your questions are as detailed and as specific as possible so we at Brainly can give you the best answers. Please review our policy.
Step-by-step explanation:
Solve the equation g + 12 = 8. *
Answers
Answer:
t=c
Step-by-step explanation:
ty = xyzn
Why? You want to get g alone so you subtract 12 from 8 and get -4
PLEASE HELP I WILL GIVE BRAINLESIST
Answers
let me know if you have any questions
which sentence can represent the inequality x+2254?.
Answers
Answer:
A
Step-by-step explanation:
It is inclusive.
The sum of half a number and three-fourths is at least five and one quarter.
The quotient of z and 8
Answers
Answer:
z/8
Step-by-step explanation:
cuz it says z and 8 in that order so z/8 please dont just ignore give me 5 star and thanks dont ignore if u do i will never help you
10. The angle measures of a triangle are shown in the diagram below.
(2x +1)°
(5x +5)
What is the value of x?
x = 25
x = 14
x = 12
X= 7
Answers
X=12
Heheheh
Quadrilateral BCDE is inscribed in circle A. The measure of ⏜ is 73°. The measure of ⏜ is 53° and the measure of ⏜ is 102°.
Determine the measure of ∠ BCD.
Answers
Answer:
117
Step-by-step explanation:
Angle BCD intercepted arc is Arc DEB.
We know DE measure but we need to find EB measure.
Since a circle circumference add up to 360, we can add all of the known arcs up to 360 to find the missing arc.
[tex]73 + 53 + 102 + x = 360[/tex]
[tex]126 + 102 + x = 360[/tex]
[tex]228 + x = 360[/tex]
[tex]x = 132[/tex]
So arc EB measure 132.
Arc eb and de.
132+102=234.
Angle BCD is inscribed angle of Arc DEB, so that means angle BCD is half of Arc DEB.
[tex] \frac{234}{2} = 117[/tex]
4. For which of the following probability assignments are events A and B independent?
P(AN B“) – 0.3. P(AN B) = 0.12, and P(Aºn B) = 0.4.
B
P(An BC) = 0.3. P(An B) = 0.3, and P(Aºn B) = 0.3.
C) P(An Bº) = 0.1. P(ANB) = 0.1, and P(Aº n B) = 0.4.
P(An Bº) = 0.3. P (AnB) = 0.0, and P(
AB) = 0.2.
E) P(An Bº) = 0.5, P (ANB) = 0.1 and P (Aºn B) = 0.4
Answers
Answer:
A
Step-by-step explanation:
formatting is so bad lol
but yeah its the first one because for independent events, the probably of a and b is the product of both probabilities, just like how 0.3*0.4=0.12
Find the equation of the parabola in the graph. The vertex is at (0,0) x^2=-8/3 y^2=-64 y^2 = -8/3x y^2= 8/3x
Answers
graph and step by step explanation
3w - 10>-4
Answers
Answer:
If your trying to find w then it'll be 2
Step-by-step explanation:
3w - 10 > -4
+10 +10
3w > 6
3 3
w > 2
So I added 10 on both sides and guess positive 10 is bigger than -4, it'll be a positive 6. Then I divide 3 on both sides after I got 6 and thats how I got 2
Given the equation y= -3x + 2.5 . When y is 8.5 , what value of x makes the equation true?
Answers
Answer:
x = -2
Step-by-step explanation:
y = -3x + 2.5
if y = 8.5 then:
8.5 = -3x + 2.5
-3x = 6
x = -2
Complete the proof by providing the missing reasons.
Answers
Answer:
Step-by-step explanation:
2. Definition of Perpendicular Lines
3. Given
4. NB=NB
5. SSA Theorem
can someone explain the answer ?
Answers
Answer:
x = 9.5
Step-by-step explanation:
Since you are given the adjacent side and need to find the hypotenuse then you need to use cos = adj/hyp so cos (47) = 6.5/x
So x = 6.5/.682, since cos 47 = .6819983601
x = 9.5
A triangle with sides 9, 12 and 15 is similar to a triangle whose longest side is 25. Find the perimeter of the larger triangle.
Answers
Answer:
P = 60
Step-by-step explanation:
First, to find the scale factor, or how much bigger the other shape is, you can do so by comparing the two triangles' longest sides.
25 5
---- = ----
15 3
So the larger triangle is 5/3 times bigger.
This means that all of its other sides with also be 5/3 times bigger.
So:
9 (5/3) = 45/3 = 15
12 (5/3) = 60/3 = 20
25 + 15 + 20 = 60
So the perimeter is 60.
You could have also found the perimeter of the smaller triangle, 9 + 12 + 15 = 36, then multiplied it by the scale factor, which would be:
36 (5/3) = 180/3 = 60
You would get the same thing.
Help me with this please please
Answers
Answer: (13.5 , 8)
14 + 13 / 2 = 13.5
14 + 2 / 2 = 8
Answer:
(13.5,8)
Step-by-step explanation:
midpoint formula = [tex](\frac{x_{1} +x_{2} }{2}, \frac{y_{1} +y_{2} }{2})[/tex]
[tex](\frac{14 +13 }{2}, \frac{14 +2 }{2})[/tex] = (13.5,8)
(a) Jimmy and Sam were building a sand castle. They decided to make it into a cone shape. After some time, the diameter of the sand shaped cone was 12 in and the height was 7in. What is the exact volume of the sand cone?
SHOW ALL WORK AND EXPLAIN
Answers
Answer:
Volume = 1 πr2h3= 1×π×122×73= 336π= 1055.5751316062 inches3
16. If Owen's house is point A (11, 3) and David's house is point B (15, 13),
how far away from eachother do they live?
Answers
Answer:
about 16.248 units
Step-by-step explanation:
Using the distance formula, and rounding to the nearest thousandth, we get 16.248
Factor the expression
3x^{2}+16x+5
Answers
Hehehhehehe
3x^2+16x+5
3x^2+(5+3)x+5
3x^2+5x+3x+5
X(3x+5)+1(3x+5)
(X+1) (3x+5) ans .
Hope this helps !
Please mark it as the brainliest <3
What is the scale factor from figure B to A?
Answers
Answer:
19/57=15/45=11/33
1/3=1/3=1/3
1:3
lemme just vent real quick. i do flvs. im almost a straight A student. for the most part. i've litterly been doing this flvs math exam all day. 2 parts btw. i flunked the first one, and i got a 50. im just dying too see what i get now. ive already asked like 3 questions on here, but they havent been answered. feel free to go look at them. if you've read this far, go get some points. :D thanks for reading.
Answers
Answer:
I'll go help, i need to answer at least 25 questions in 48 hours anyways too
Answer:
ok. i will try to answer them my best
Step-by-step explanation:
thank you for free points though. may god bless you
Please help!!!!!!!! Find radius and diameter. will mark brainiest!!!!!!!!!!
Answers
Answer:
The radius is given its 10 in
The diameter is 20 in
Step-by-step explanation:
Two find the diameter given the radius you just multiply by 2
10x2=20 therefore the diameter is 20
Hope this helps :)
Answer:
Radius = 10 inches. Diameter = 20 inches
Step-by-step explanation:
Radius is the halfway point in a circle, the line which says 10 inches. While the diameter is the full length across the circle, which would be the radius times itself, 20.
Hope this helps!