the face of a clock has a circumference of 62.8 in. What is the area of the face of the clock.
Answer:
3 943.84π
Step-by-step explanation:
tienes que usar la fórmula de: pi por radio al cuadrado
Answer:
[tex]314in^{2}[/tex]
Step-by-step explanation:
Circumference is [tex]2\pi r[/tex]
Find your radius
[tex]2\pi r=62.8\\\pi r=31.4\\[/tex]
Let [tex]\pi =3.14[/tex] for simplicity
r=[tex]\frac{31.4}{3.14}[/tex]=10
Now use the equation for the area of a circle to find the area of the clock face.
Area of a circle is [tex]\pi r^{2}[/tex]
Area of clock face is [tex]\pi (10^{2} )[/tex]
=[tex]100\pi[/tex]
=[tex]314in^{2}[/tex]
Cual la respuesta plis
Answer:
do math
Step-by-step explanation:
up
Last night 30cm of snow fell in 6 hours. If it continues snowing at the
same rate, how long will it take for 45cm of snow to fall?
Answer: 9 hrs for 45cm of snow to fall
Step-by-step
If 30cm = 6 hrs
Then divide 30/6 to get the unit rate of the amount of snow per hr
Which is 5/1
So 5cm per hr
Then add 30+5+5+5 to get 45
And since we know 5cm equal 1 hr
Add the original amount of hours which is 6 plus 3 ones
Which is 6+1+1+1
In total, it will take 9 hrs for 45cm of snow to fall.
In the morning, the temperature was–10°C. By the afternoon, it had risen to–2°C. What was the change in temperature from the morning to the afternoon?To solve the problem, Luke subtracted–2–(–10) and came up with an answer of 8°C. Is Luke correct? Why or why not?
Solve for n.
3 ( n + 5 ) ≥ 3 n + 8
Answer:
[tex]3(n + 5) \geqslant 3n + 8 \\ 3n + 3 \times5 \geqslant 3n + 8 \\ 3n + 15 \geqslant 3n + 8 \\ 3n - 3n \geqslant 8 - 15 \\ 0n \geqslant - 7 \\ no \: solution \\ thank \: you[/tex]
Answer:
[tex]7 \geqslant 0 \: \: \: \: or \: \: \: \: 0 \leqslant 7 \\ [/tex]
Step-by-step explanation:
[tex]3(n + 5) \geqslant 3n + 8 \\ 3n + 15 \geqslant 3n + 8 \\15 - 8 \geqslant 3n - 3n \\ 7 \geqslant0 \\ [/tex]
Could someone please help me answer this, please no spam, will give brainliest, thank you! (homework help)
Answer:
b<-1
Step-by-step explanation:
-3b-2>1
add 2 on both sides
-3b>3
divide both sides by -3
b<-1
Bobby and his brother had 3 over 4 of a pizza leftover after dinner. Their father came home and ate 1 over 2 of the leftover pizza. How much pizza did their father eat?
Answer:
it could be 1/8
I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D
Answer:
i wanna say A srry if wrong
Step-by-step explanation:
because there all in rows
first there all even there the same shap and there the same size on eachone
Answer:
I think the answer is A.
Step-by-step explanation:
I am SO SO sorry if this is wrong! :(
PLEASE HELP ASAP IT'S REALLY IMPORTANT!!!
Answer:
why
Step-by-step explanation:
I thought something happened to you why did u never come back,why just ghost me of all people not only once but twice
Explain in your own words the meaning of equivalent
ratios.
Answer:Equivalent ratios are ratios that make the same comparison of numbers. Two ratios are equivalent if one can be expressed as a multiple of the other.
Answer:
ratios that make the same comparison of numbers
Step-by-step explanation:
i hope thats good for u
Please help. I don't know the answer
Answer:
The answer is 3x+4y<-12
Step-by-step explanation:
NO LINKS!!!!!!!!!!!!
Answer:
this is the answer thanks mark me as brainlist
5. Which digital construction tool does the same job as a compass?
A. Point
B. Line
C. Polygon
D. Circle with center through point
Please help me with this math problem! I will give brainliest!! :)
Line BC is equal to line AD
∴
x + 17 = 3x + 7
x - 3x = 7 - 17
-2x = - 10
-2x / -2 = - 10 / -2
x = 5
AD
3x + 7
3(5) + 7
15 + 7
22
CD
2x - 6
2(5) - 6
10 - 6
4
BC
x + 17
5 + 17
22
AB
Line AB is equal to line CD therefore its length is 4
Answer:
x = 5
AB = 4
BC = 22
CD = 4
AD = 22
swine flu is attacking the north pole. the function below determines how many elves have swine flu where t=time in days and S= the number of people in thousands.
S(t)=9t - 4. find S(4)
Answer:
S(4) = 32
Step-by-step explanation:
Work on photo !
Nico is saving money for his college education. He invests some money at 7%, and $1600 less than that amount at 6%. The investments produced a total of $177 interest in 1 yr. How much did he invest at each rate?
Answer:
Step-by-step explanation:
177=.07x+.06(x-1600)
177=.13x-96
273=.13x
x=2100
Which means that the amount invested 2100 at 7% and 500 at 6%
hi what's this answer please? -3 1/2 - 1 5/6 =
Answer:
12
Step-by-step explanation:
-31*6 - 15*2
2*6
= -186 - 30
12
= -216
12
Answer = -216
12
Hope it helped
Answer:
- 5 [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
- 3 [tex]\frac{1}{2}[/tex] - 1 [tex]\frac{5}{6}[/tex] ( change to improper fractions )
= - [tex]\frac{7}{2}[/tex] - [tex]\frac{11}{6}[/tex] ( multiply numerator/denominator of first fraction by 3 )
= - [tex]\frac{7(3)}{2(3)}[/tex] - [tex]\frac{11}{6}[/tex]
= - [tex]\frac{21}{6}[/tex] - [tex]\frac{11}{6}[/tex]
= [tex]\frac{-21-11}{6}[/tex]
= [tex]\frac{-32}{6}[/tex]
= - [tex]\frac{32}{6}[/tex]
= - 5 [tex]\frac{2}{6}[/tex]
= - 5 [tex]\frac{1}{3}[/tex]
suppose today is Thursday, what day of the week will it be after 20days, 50days, 70days n 100 days
Answer:
Wednesday, Friday, Thursday Saturday
Step-by-step explanation:
i just need help with number 2, i don’t understand
Step-by-step explanation:
Assuming c = x, you would substitute 2{(5)^(5)} - 6,
5^5 = 25,
2(25) = 50,
50 - 6 = 44
Answer would be 44, but only if c = x
What is the rounded number when 4 872 is rounded to the nearest hundred?
I need help lollololol
Answer & Step-by-step explanation:
37.
Linda walked 3/4 (or 75%) of a track which is 3.5 miles long
Multiply 0.75 by 3.5 to get 2.625 miles (or 2 and 5/8 miles)
38.
We need to multiply the 2 and 3/8 mile track by 2 and a half (2 and 0.5)
1/8 is 0.125
2/8 is 0.25
3/8 is 0.375
The track is 2.375 miles long.
Multiply 2.375 by 2.5
The track will be 5.9375 miles long after 5 years ( or 5 and 15/16 miles)
Step-by-step explanation:
37) ¾×7/2
21/8 miles = 2⅝miles .
38) (19/8×5/2)+19/8
= 95/16+19/8
= 133/16 = 8 5/16 miles .
hope this helps you.
help I got this wrong but i have 2nd chance:
Tony bought a $48 sweatshirt and used a coupon for a 10% discount. Keith bought an identical sweatshirt at a different store for $42.95. Which statement is true?
Answer:
Keith paid $0.25 less than Tony paid.
Step-by-step explanation:
Tony paid ($48 - 10%) = $43.2
Keith paid $42.95.
The difference is Tony paid $0.25 more, or Keith paid $0.25 less.
Answer:
Keith paid $0.25 less than Tony.
Step-by-step explanation:
Tony: 48 x 0.10 = 4.8
48 - 4.8 = $ 43.20 (Tony)
Keith: $ 42.95
43.20 - 42.95 = 0.25
G(x)=4x^2+9x ; find g(3x)
Answer:
12xto the 3 + 27x squared
what is 15% of $8.00
Answer:
15% of $8.00 is: $1.20
Step-by-step explanation:
Hope this helps :)
Pls mark as brainliest <3
0.884743701 British pounds and 1.2 US$
Please help me this is due please help
Answer:
each person pays $21.04
Step-by-step explanation:
105.20/5=21.04
Answer:
$21.04
Step-by-step explanation:
U just divide the amount of money by 5. (im pretty sure thats all u do)
Subtraction of integers
-70 --25 =
Answer:
-45
Step-by-step explanation:
-70 --25
-×-=+
-70 +25
-45
write an equation of the line that has each pair of intercepts
x-intercept: 6 y-intercept: 3
Answer: y = 6x+3
Step-by-step explanation:
Find the cosine of ZX.
Answer:
[tex] \cos(x) = \frac{ 65}{ \sqrt{ {65}^{2} + {72}^{2} } } = \frac{65}{97} [/tex]
ANALYZE The surface area of a three-dimensional object is the sum of the area of the faces. If represents the length of the side of a cube, write a formula for the surface area S of the cube.
Step-by-step explanation:
If X represents the length of the side of a cube, the formula for the surface area of the cube, S =?
solution :
the area of each face of the cube = side × side
= X × X = X²
the cube has 6 similar faces, so the surface area of the cube could be:
S = 6 × X² = 6X²
Answer:
Surface Area = 6 × S²
Step-by-step explanation:
the surface area fo the cube :
SA = 6 × lenght × lenghtif lenght = S, the surface area fo the cube :
SA = 6 × lenght × lenght
SA = 6 × S × S
SA = 6 × S²
Which of the following equations represents a line that passes through the points (-10, -9)(−10,−9) and (10,-1)(10,−1)?
I. y+1=-\frac{2}{5}(x-10)y+1=−
5
2
(x−10)
II. 2x-5y=252x−5y=25
Answer:
y = 2/5x - 5
Step-by-step explanation:
(-10,-9) and (10,-1)
Slope: (-1 - - 9) / ( 10 - - 10)
Slope = 8/20 = 2/5
b = -9 - (2/5(10)
b = -5
The equation of the line that passes through the point (−10,−9) and (10,-1) is; y = 2/5x - 5
What is the Point-slope form?The equation of the straight line has its slope and given point.
If we have a non-vertical line that passes through any point(x1, y1) and has a gradient m. then general point (x, y) must satisfy the equation
y-y₁ = m(x-x₁)
Where x₁ - x coordinate, y₁ - y coordinate, m - slope
Slope: (-1 - - 9) / ( 10 - - 10)
m = Slope = 8/20 = 2/5
Now intercept;
b = -9 - (2/5(10)
b = -5
Now Write the equation as
y = 2/5x - 5
Hence, the equation of the line that passes through the point (−10,−9) and (10,-1) is; y = 2/5x - 5
Learn more about equations here;
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