Answers
Answer:
Step-by-step explanation:
For part a :
The circumference of the circle is given by the formula 2πr. We are given r so we double r and put it next to pi :
C = 2×π×r = 2×π×8 = 16π
For part b :
The area of a circle is given by the formula πr². We are given r so we square r and put it next to pi :
A = π×r² = π×8² = 64π
For part c :
The area of a square is given by the formula a² where a is the side length. This question requires an extra step as we don't have the length of the square. But we know that the diameter of the circle will be equal to the side of the length. The diameter of a circle is given by the formula 2r : so
D = 2r = 2×8 = 16
So the area of the square will equal :
A = 16² = 256
Hope this helped and brainliest and hearts please.
I'm on my road to genius rank
Related Questions
help me now!! help help help
Answers
Step-by-step explanation:
sum of interior angle sum of each angle
1) 720 120
2)360 90
3)540 108
(2)
a) a=360-90-90-122
a=58
b) b=360-100-95-35
b=130
c) c=720-140-110-110-125-139
c=105
d) 2d=540-80-90-90
2d=280
d= 140
3) 5(360/5)
=360
4) y=90+90-122
y=58
x=360-117-66-58
x=119
If x is a positive integer, then x is _____ negative.
a. never
b. sometimes
c. always
Answers
because you are limiting x from 0 to infinite, and all of these are positive.
What is ((x^(2 )y^(3))^((1)/(3)))/(\root(3)(x^(2)y)) in exponential form?
Answers
The exponential form when [x²y³)^(¹/₃)]/[∛x²y] is simplified gives us; [x^(²/₃) * y]/[x^(²/₃) * y^(¹/₃)]
How to simplify exponents?The power of a digit defines a base number raised to the exponent, where base number is the factor which is multiplied by itself while exponent denotes the number of times the same base number is multiplied.
We want to simplify the exponents; [x²y³)^(¹/₃)]/[∛x²y]
Using rule of exponents, we have;
[x^(²/₃) * y]/[x^(²/₃) * y^(¹/₃)]
Read more about Exponents at; https://brainly.com/question/12882204
#SPJ1
Hi, I'm in 7th grade and I'm about to fail Mathematics. Please help me...
Answers
1. 16
2. 2, 21
3. 2
4. 42
Hope that helps!
What is the value of x in the equation?
Answers
Answer:
What is the value of x in the equation?
Step-by-step explanation:
Two hoses A and B together fill a swimming pool in two hours. A does it by herself in three hours less than B. Calculate how many hours it takes each to fill the pool.
Answers
If hose A takes x hours to fill the pool, hose B will take x+3 hours to fill the pool. So, each hour, A will fill [tex]\bf{\dfrac{1}{x}}[/tex] parts of the pool and B will fill [tex]\bf{\dfrac{1}{x+3}}[/tex] parts. Since using both hoses fills the pool completely, you have to:
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{ 1= \frac{1}{x}+\frac{1}{x}+\frac{1}{x+3}+\frac{1}{x+3} } \end{gathered}$}\\\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ \ \ =\frac{2}{x}+\frac{2}{x+3} } \end{gathered}$}\\\large\displaystyle\text{$\begin{gathered}\sf \bf{ \ \ \ =\frac{2x+2x+6}{x(x+3)} } \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{ x^2+3x=4x+6\ \Longrightarrow\ \ 0=x^2-x-6=(x-3)(x+2) } \end{gathered}$}[/tex]
Hose A takes 3 hours to fill the pool and Hose B takes 6 hours.
Sarah is attempting to find the height of a tree by using a mirror. By the laws of physics she knows that the angle of incidence is congruent to the angle of reflection (these are marked in red on the diagram). Explain why the two triangles are similar and if she knows her height and the distance from the mirror to her feet and also the distance from the mirror to the tree how could she calculate the height of the tree?
Answers
The two triangles are similar as the angle of incidence is equal to the angle of reflection because the light ray selects the shortest path to reach the destination.
What s an angle of reflection?The angle of reflection is the angle between a reflected ray and the normal drawn at the point of incidence to a reflecting surface.
When light is reflected from a surface, then the angle of incidence is always equal to the angle of reflection, where the angles are measured from the path of the light to the normal to the surface at the point at which light strikes the surface. Therefore, the angle of incidence is congruent to the angle of reflection.
Learn more about angles on:
https://brainly.com/question/11867960
#SPJ1
The number of tvs sold increased from 70 to 98. work out the percentage increase.
Answers
Congruent or not congruent
Answers
B. Is congruent by SSS (Side Side Side) because the triangles are reflective.
C. Is congruent by SAS (Side Angle Side)
D. Cannot be determined
2. M<1 = 80
M<6 = 100
3. 2x+7=5x-8
-2x. -2x
7=3x-8
+8. +8
15=3x
3x. 3x
5=x
Clare makes a pattern of shapes each shape in the pattern is 1 unit longer and 1 unit taller than the shape before it which picture could show the first three shapes in Clare pattern?
Answers
Answer:
triagle
Step-by-step explanation:
it is tringle because because this pattern other is tall and other is short it gona be isocelese triagle
A rectangular shop in the mall is 10 meters long and 6 meters wide. what is its area?
Answers
Step-by-step explanation:
the area of a rectangle is
length × width
I am sure you discussed and learned this in class, otherwise you would not get such a problem to solve.
it is a really simple thing : just multiply the 2 numbers.
the area of the shop is
10 × 6 = 60 m²
the really important thing is not to forget that the result is not measured in meters, as this is no longer just a 1- dimensional length. since we multiplied two meter lengths, it is measured in square meters, which are squares of 1 meter side length, and we say how many such squares fit into the area.
Based on your experience, the probability of you scoring a goal in a hockey game is 33.3%. How many goals would you likely score in 12 games?
Answers
You would likely score 4 goals in 12 games
How to determine the number of goals?The given parameters are:
Probability, p =33.3%Total number of goals = 12The expected number of goals is calculated as:
E(x) = p * Total
This gives
E(x) = 33.3% * 12
Evaluate
E(x) = 4
Hence, you would likely score 4 goals in 12 games
Read more about probability at:
https://brainly.com/question/251701
#SPJ1
Find the length of side xx in simplest radical form with a rational denominator.
Answers
Answer:
[tex]x = \dfrac{\sqrt{22}}{2}[/tex]
Step by step explanation:
[tex]\text{This is an isosceles right triangle}~ \left(45^{\circ} - 45^{\circ} - 90^{\circ}\right).\\\\\text{Apply Pythagorean theorem,}\\\\~~~~~~\left(\sqrt{11}\right)^2 =x^2 +x^2 \\\\\implies 11 = 2x^2 \\\\\implies x^2 = \dfrac{11}2\\\\\implies x = \sqrt{\dfrac{11}{2}}\\\\\implies x = \dfrac{\sqrt{11}}{\sqrt 2}\\\\\implies x = \dfrac{\sqrt{11}\sqrt 2}{2}\\\\\implies x = \dfrac{\sqrt{22}}{2}[/tex]
in 2020 there were about 282 million gas powered cars on the road this number is expected to decrease at a rate of 3.1% per year if this is correct estimate how many people will be driving gas in 5 years
Answers
Answer:
≈ 240,000,000 people
Step-by-step explanation:
[tex]3.1 \cdot 5 = 15.5[/tex]
[tex]15.5[/tex] ≈ [tex]16[/tex]
[tex]Y = X(1 - P\%)\\Y = 282,000,000(1 - 16\%)[/tex]
[tex]p = 16\%/100 = 0.16\\Y = 282,000,000(1 - 0.16)\\Y = 282,000,000(0.84)\\Y = 236,880,000\\[/tex]
[tex]236,880,000[/tex] ≈ [tex]240,000,000[/tex]
Answer all of these for brainliest?
Answers
Answer:
always, always, never, always, always
Step-by-step explanation: brainliest?
Find the value of 6a+5b when a = 4.2 and b = -1.9
Answers
Answer:
the answer is -5.3 hopes this helps
Step-by-step explanation:
6a+5b=?
6(4.2)+5(-1.9)=?
6(4.2)= 25.2
5(-1.9)= -9.5
4.2 - 9.5= -5.3
The value of the expression (6a + 5b) when a = 4.2 and b = -1.9 will be 15.7.
What is the value of the expression?When the relevant components and basic processes of a numerical method are given values, the expression's result is the result of the computation it depicts.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The expression is given as,
⇒ 6a + 5b
The value of the expression at a= 4.2 and b = - 1.9 is calculated as,
⇒ 6 x 4.2 + 5 x (-1.9)
⇒ 15.7
The value of the expression (6a + 5b) when a = 4.2 and b = -1.9 will be 15.7.
More about the value of the expression link is given below.
https://brainly.com/question/23671908
#SPJ2
You're ordering a sandwich at the local deli, below is a tree diagram of the possible orders. What is the probability that your sandwich has turkey AND swiss cheese?
Answers
Answer:
Step-by-step explanation:
1. So there is two bread options but let's ignore that due every option being the same for both bread options.
2. So if you look there are three meat options meaning there is a one in three chance logical chance someone picks turkey (note when I say logical I mean that doesn't mean that this will be true in real life) and there is a one in two logical chance someone picks Swiss cheese.
3. So with a one in three chance logical meat option and a one two chance cheese option and.
4. Now knowing this it is simple math at this point as simple as [tex]\frac{1}{3}[/tex] x [tex]\frac{1}{2}[/tex]
5. 1 x 1 = 1 and 3 x 2 = 6
6. leading to [tex]\frac{1}{6}[/tex]
Create a set of five lengths so that:
• Each length is different.
• Each length is a whole number (in inches).
• Each length is shorter than a piece of paper (`11` in.).
• No matter which three you choose, you will never be able to make a triangle.
Explain how you know that your set of lengths meet all the requirements.
Answers
Answer:
1, 2, 3, 7, 10
Step-by-step explanation:
Triangle ABC is a right triangle. The length of one of the legs is 12 centimeters, and the length of the hypotenuse is 20 centimeters. What is the length of the other leg?
Answers
Answer: 16 centimeters
Step-by-step explanation:
We will use the Pythagorean theorem to solve. The c variable is the hypotenuse, the a and b variables are the legs.
a² + b² = c²
12² + b² = 20²
144 + b² = 400
b² = 256
b = [tex]\sqrt{256}[/tex]
b = 16
The length of the other leg is 16 centimeters.
Answer:
The other leg is 16 cm long.
Explanation:
Use the Pythagorean theorem:
[tex]c^2=a^2+b^2[/tex],
where:
[tex]c[/tex] is the hypotenuse, and [tex]a[/tex] and [tex]b[/tex] are the other two sides (legs).
Let [tex]a=12[/tex] [tex]cm[/tex]
Rearrange the equation to isolate [tex]b^2[/tex]. Plug in the values for [tex]a[/tex] and [tex]c[/tex], and solve.
[tex]b^2=c^2-a^2[/tex]
[tex]b2=(20 cm)^2-(12 cm)^2[/tex]
Simplify.
[tex]b^2=400 cm^2-144cm^2[/tex]
[tex]b^2=256 cm^2[/tex]
Take the square root of both sides.
[tex]b=\sqrt{256cm^2}[/tex]
Simplify.
[tex]b=16[/tex] [tex]cm[/tex]
Match the graph to the correct inequality
X≥-3
X<-3
X≤ 3
X> -3
Answers
Answer: Choice A) x ≥ -3
Reason:
The graph has a closed filled in circle at -3, which means we include this value. So we'll have "or equal to" as part of the inequality sign.
We'll also have "greater than" because we're shading to the right.
Hence, we have "greater than or equal to".
Put another way, x = -3 or x > -3 are two possibilities.
If the endpoint at -3 was an open hole, then we'd exclude the endpoint and go for x > -3 instead of x ≥ -3
Answer:
X≥-3
Step-by-step explanation:
Inequalities represent a range of values, rather than a single value.
Let us consider the inequality
x > - 3
This would mean can be any value greater than -3, not including -3.
This is represented by a line starting from -3 and extending indefinitely (marked by an arrow head). Note that at -3, there is a small empty circle which represents that -3 is not included.
In case the inequality was
x > -3
It would mean that -3 has also been included.
In case you can't draw on the number line, you can also show the range just above the number.
An unusual number cube (with 6 sides) has the numbers 2, 2, 4, 4, 6, and 6 on its faces.
It is rolled once.
Match the outcome to its probability.
Answers
Answer:
1. P(2 or 4) - 2/3
2. P(multiple of 2) - 1
3. P(multiple of 3) - 1/3
4. P(odd prime numbers) - 0
Step-by-step explanation:
Good luck lol
P(2 or 4) = 2/3
P( multiple of 2) = 1
P( multiple of 3) = 1/3
P(odd prime numbers) = 0
What is probability?
Probability is the likelihood of an event happening or not.
Analysis:
possible outcome = (2,2,4,4,6,6) = 6
P(2 or 4)
n( 2) = required outcome = (2,2) = 2
P(2) = 2/6 = 1/3
n(4) = (4,4) = 2
P(4) = 2/6 = 1/3
P(2 or 4) = 1/3 + 1/3 = 2/3
n( multiple of 2) = (2,2,4,4,6,6) = 6
P( multiple of 2) = 6/6 = 1
n(multiple of 3) = (6,6) = 2
P(multiple of 3) = 2/6 = 1/3
P(odd prime numbers) = 0
Learn more about probability: brainly.com/question/24756209
#SPJ1
Select the correct answer.
The graph of the equation y= 3x + 1 is shown below.
y
+x
-8
to
7
-2
8
6
+2+
+
-6-
-8-
2
6
Co
Answers
The graph is reflected across the y-axis, then the equation of the new graph will be y = 3⁻ˣ + 1.
What is a function?A statement, principle, or policy that creates the link between two variables is known as a function.
The graph of the equation y = 3ˣ + 1 is shown below.
If the graph is reflected across the y-axis, then the equation of the new graph will be
y = 3⁻ˣ + 1
More about the function link is given below.
https://brainly.com/question/5245372
#SPJ1
which of the following is NOT a solution of the inequality?
y[tex]\leq[/tex] - 1?
a) -3
b) -1
c) -6
d)0
Answers
Answer: d) 0
Step-by-step explanation:
With the inequality given, y ≤ -1, solutions are -1 and all numbers less than -1. We will check all the options to see which is not a solution.
a) -3 ✓
-> This is not our answer. -3 is less than -1.
b) -1 ✓
-> This is not our answer. -1 is equal to -1.
c) -6 ✓
-> This is not our answer. -6 is less than -1.
d) 0 ✗
-> This is our answer! 0 is not less than -1.
Answer:
The answer is d
5. in a maths test , Archie got1/5 of the questions wrong.
a What was Archie's percentage score?
b. Explain why it is not possible to work out his actual score.
Answers
Answer:
Step-by-step explanation:
a) Out of 5, 1 only one is wrong. So number of questions answered correctly is (4/5)
To find the percentage, multiply (4/5) by 100
[tex]\sf \dfrac{4}{5}*100 = 4* 20 = 80 \%[/tex]
b) It is not possible to find the actual score because we don't know how many questions were there actually and the score for each question.
Answer:
jajajjajaja
Step-by-step explanation:
sdfgsdfgsdfg
hello, please help FAST!!!
Harry and Gwen ride in a bicycle race. Harry clocks 102.62 meters per minute, and Gwen clocks 101.94 meters per minute. What is the difference in their cycling speeds?
best answer will get brainliest
Answers
Answer:
0.68 meters per minute
Step-by-step explanation:
102.62 - 101.94 = 0.68, so Harry is 0.68 meters per minute faster than Gwen.
Answer:
0.68 m/min.
Step-by-step explanation:
Given :
⇒ Harry's speed = 102.62 m/min.
⇒ Gwen's speed = 101.94 m/min.
===============================================================
Solving :
⇒ Difference = Harry's speed - Gwen's speed
⇒ Difference = 102.62 - 101.94
⇒ Difference = 0.68 m/min.
Make an organized list which shows all possible outcomes when four fair coins are flipped.Each coin lands facing either heads up (H) or tails up (T).What is the probability that at least three coins land facing tails up? Give the probability as a percent, rounded to the nearest whole number.P(at least three tails) =
Answers
Answer:
Sample Space
= { HHHH , HHHT, HTHH , HHTT , HHTH , HTHT , HTTH , HTTT , TTTT , TTTH ,THTT, TTHH ,TTHT ,THTH, THHT ,THHH}
n(S) = 16
at least three coins land facing tails up T= { HTTT , TTTT , TTTH ,THTT, TTHT }
n(T)=5
P(at least three tails) = n(T)/n(S) = 5/16
∴ the percentage is = 31.25%
Step-by-step explanation:
okay now that i know i have 31 kids left in my basement let's say instead of auctioning them off let's say that i sell the rest of them for $1000 each on the black market how much money would i make?
Answers
wait what how did you get that many
Step-by-step explanation:
Answer: 100000000000
Step-by-step explanation:
black market loves childern
If ∠PLA and ∠ELA are complementary, ∠PLA = 5x – 2, and ∠ELA = x + 8, what is the measure of ∠PLE?
Answers
Answer:
ELA
Step-by-step explanation:
you add ela to a bonus points
Answer:
PLA + ELA = 90
Step-by-step explanation:
lol
A teacup has a diameter of 6 centimeters. What is the teacup's radius?
Help please.
Answers
Answer:
3
Step-by-step explanation:
2r=d
d/2=r
When graphing a sine curve model using the equation y = sine b x, the period (or wavelength) will be represented by startfraction 2 pi over b endfraction, so b = startfraction 2 pi over period endfraction. determine the equation for the sine curve that models the g
Answers
The equation of the sine curve is y = sin(7.59x)
How to determine the sine function?The complete question is added as an attachment.
The sine function is given as:
y = sin(bx)
And the value of b is given as:
b = 2π/T
Where T = 0.828
Substitute T = 0.828 in b = 2π/T
b = 2π/0.828
Evaluate
b = 7.59
Substitute b = 7.59 in y = sin(bx)
y = sin(7.59x)
Hence, the equation of the sine curve is y = sin(7.59x)
Read more about sine curves at:
https://brainly.com/question/17075439
#SPJ1