Answers
Answer:
a
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = 2πr ( r is the radius ) , then
C = 2π × 20 = 40π
Related Questions
A linear sequence (i.e. where the 1st difference is always the same) has 5th term 6 and 92nd term 354. What is the 57th term?
Answers
Answer:
I dont know xDDDDDDDDDD
Answer:
a₅₇ = 214
Step-by-step explanation:
The n th term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₅ = 6 and a₉₂ = 354 , then
a₁ + 4d = 6 → (1)
a₁ + 91d = 354 → (2)
Subtract (1) from (2) term by term to eliminate a₁
0 + 87d = 348
87d = 348 ( divide both sides by 87 )
d = 4
Substitute d = 4 in (1) and solve for a₁
a₁ + 4(4) = 6
a₁ + 16 = 6 ( subtract 16 from both sides )
a₁ = - 10
Then
a₅₇ = - 10 + (56 × 4 ) = - 10 + 224 = 214
2% of the ducks in a pond have a fluffy tail. If 4 ducks have a fluffy tail, how many ducks are in the pond. Please answer best answer gets brainliest.
Answers
Answer:
200
Step-by-step explanation:
just look up 2% of 4 is what and you will get the same answer
plz help
A line passes through the point (2,1) and has a slope of 7/2 Find
the equation of the line.
Answers
Answer:
1/7 and 2/2
Step-by-step explanation:
Please help me it would help a lot
Answers
Bec 4x-5
Answer:
x=11°
<Bec = 33°
<Ced = 39°
Step-by-step explanation:
That's a right angle so it would be 90 degrees angle.
18+3x+4x-5=90
Lets simplify it to make it easier to work out by collecting like terms.
First all the variable 3x+4x=7x
Then the numbers 18+-5=13
13(-13)+7x = 90(-13)take away 13 from both sides
(Opposite operators EG, Add becomes subtract)
7x = 77 then divide 7 from both sides
x=11
Then work out
3x11=33 degrees
4x11=44-5=39 degrees
To double check 39+33+18=90 degrees
What is 500 time 200 i konw it do you
Answers
Answer:
100,000
Step-by-step explanation:
Hope this helped
PLEASE HELP!!!! The class was given this problem and asked to solve for "x". Craig says that x = 11/cos(37). Laura disagrees and says that x = 11/sin(53). Who (if anyone) is correct?
Answers
Answer:
both
Step-by-step explanation:
they are both correct. sin and cosine are complements (90-x) of each other ( that's where cosine gets its name).
Can someone help me please?
Answers
Answer:
So the answer is 2^-3
Step-by-step explanation:
The principle is the same no matter what the base.
Log_2 (7) + Log_2(3/28) - Log_2(6)
+ means multiply
- means divide
Log_2(7 * 3/28 /6)
Log_2(7/6 * 3/28)
Log_2(1/2 * 1/4) 3 divides into 6 twice. 7 divides into 28 four times
log_2 (1/8)
This is equivalent to 2^(-3)
plz help..... A car travels 205 km on 20 liters of petrol. how many liters of petrol is needed for a journey of 820 km?
Answers
Answer:80 liters of petrol
In a certain Algebra 2 class of 30 students, 8 of them play basketball and 10 of them
play baseball. There are 18 students who play neither sport. What is the probability
that a student chosen randomly from the class plays both basketball and baseball?
Answers
the ratio is 8:10
12 students dont play
18-12 = (6)
The actual distance between two villages is 120 kilometers. On a map of the area, 0.5 centimeter represents 2 kilometers.
What is the distance between the villages on the map?
Enter your answer in the box.
Answers
Answer:
30 centimeters
Step-by-step explanation:
I hope this helps
Answer:
what he said
Step-by-step explanation:
On his death, a wealthy businessman left R132 000 to charity. He declared that the money should be given to the following charities: 'The Reach for a Dream Foundation', NSPCA and Smile, in the following ratio 3 : 4 : 5.
Determine the amount each foundation received.
Answers
Answer:
The Reach for a Dream Foundation received R33000, NSPCA received R44000, and Smile received R55000.
Step-by-step explanation:
Total money for charity = R132,000
Ratio:
3 : 4 : 5
Charities:
The Reach for a Dream Foundation : NSPCA : Smile
x : y : z
3x + 4y + 5z = R132000
Charity 1 = Charity 2 = Charity 3
x = y = z
3x + 4x + 5x = R132000
x = 11000
The Reach for a Dream Foundation:
3(11000) = R33000
NSPCA:
4(11000) = R44000
Smile:
5(11000) = R55000
Double Check:
R33000 + R44000 + R55000 = R132000
8) Marvel and DC Comics want to build a series of interactive museums for kids. They will
begin with a one level museum where they both originated from: New York City. They
want to be able to have as many as 50,000 visitors at one time. In order to
accommodate this many people, what is the maximum footprint the museum needs to
have while still meeting the state's fire code of 10 occupants per square foot?
Page 4
Answers
Answer:
Can you give me the answer for these questions? Pleaseeeee I need 7 and 8
Step-by-step explanation:
can someone help me with this question.
Answers
Answer:
C.
Step-by-step explanation:
F(n) = 2.4 N-1
who ever knows what 12×75 is I'll give brainliest
Answers
Answer:
900
Step-by-step explanation:
Answer:
Answer: 12×75
= 900
Step-by-step explanation:
Hope this helps
the cost of 3 DVDs and 4 CDs £62.00. the cost of 4 DVDs and 3 CDs is £64.00.find the cost of each.
hellllp
Answers
Answer:
x = 10; y = 8
Step-by-step explanation:
Let
DVDs = x
CDs = y
3x + 4y = 62 (1)
4x + 3y = 64 (2)
Multiply (1) by 4 and (2) by 3 to eliminate x
12x + 16y = 248 (3)
12x + 9y = 192 (4)
Subtract (4) from (3)
16y - 9y = 248 - 192
7y = 56
y = 56/7
y = 8
Substitute y = 8 into (1)
3x + 4y = 62
3x + 4(8) = 62
3x + 32 = 62
3x = 62 - 32
3x = 30
x = 30/3
x = 10
x = 10; y = 8
How do find the area of this figure? Answer ASAP Tysm
Answers
Answer:
26
Step-by-step explanation:
6+10+10=26
Answer:
80m²
Step-by-step explanation:
area of rectangle-&10m×6m=60m²
10m-6m=4m
10m×4m=40m²
area of triangle->40m²÷2=20m²
area->60m²+20m²=80m²
bonjour, j’ai un dm de math mais je ne comprends pas :
La mère de Julien lui a choisi un forfait de téléphone mobile
à 14,90 €. Elle explique à son fils que, pour ce prix, il peut téléphoner
60 minutes et envoyer 30 SMS. S'il dépasse son forfait, cela lui
coûtera 0,36 € par minute supplémentaire et 0,12 € par SMS
supplémentaire.
On note t (en minutes) la durée totale pendant laquelle Julien a téléphone et s le nombre total
de SMS qu'il a envoyés. En supposant que Julien dépasse à la fois les 60 min et les 30 SMS de son
forfait :
1) Exprimer en fonction de t (resp. en fonction de s) la somme supplémentaire que devra payer
Julien en ce qui concerne ses appels (resp. en ce qui concerne ses SMS).
2) En déduire l'expression, en fonction de t et s, de la somme totale que devra payer Julien
en cas de dépassement de son forfait tant au niveau des appels que des SMS.
3) Au cours des quatre derniers mois, Julien a répertorié dans un tableau ce qu'il a exactement
consommé. Recopier et compléter son tableau.
Temps de communication
(en minutes)
75
65
Mai
Juin
Juillet
Août
Nombre de SMS envoyés Prix à payer (en euros)
35
41
47
50
80
87
Answers
Answer:
the answe're is that i don't underatamd the language first
HELP ME PLS!!!
Thank you!
Answers
what is 2.38÷2.8
show all working
Answers
Answer:
the answer is 0.85 of 2.38 ÷ 2.8
Answer:
0.85
Step-by-step explanation:
[tex]\frac{2.38}{2.8} =\frac{2.38}{2.8}*\frac{100}{100}=\frac{2.38*100}{2.8*100}=\frac{238}{280}\\\\\frac{238}{280}=\frac{238}{280}/\frac{14}{14} =\frac{238/14}{280/14}=\frac{17}{20}\\\\\frac{17}{20}=\frac{17/2}{20/2}=\frac{8.5}{10}=0.85[/tex]
PLEASE HELP 76 POINTS! Please answer both questions, giving brainliest to correct answer.
Answers
Answer:
2 5/6 ft
Step-by-step explanation:
Paul perimeter = 4 1/2+6+3 1/3+3 1/3+6 = 23 1/6 ft
Ian perimeter = 2(8+5) = 26 ft
26-23 1/6 = 2 5/6 ft
Answer:
It’s c. B)))))
Step-by-step explanation:
Math one question WILL GIVE BRAINLIEST
Answers
Answer:
b
Step-by-step explanation:
Dilation reduces or enlarges the size
Translation moves the shape within the quadrant
Rotation about the origin changes the orientation and the location to another quadrant.
Help me
How do u do this
Answers
Answer:
second one and I don't know how to do it sorry is it a
Step-by-step explanation:
can you help me with my question
Determine whether the triangles are similar or not, if so, determine if it is by AA-, SSS-, or SAS-.
HELP PLZZZZ!!!!
Answers
Answer and Step-by-step explanation:
Similar by SSS-
This is because the dilation factor of the triangles is 1.6, meaning each side from the small triangle has to be multiplied by 1.6 to be have the sides of the bigger triangle.
#teamtrees #PAW (Plant And Water)
I hope this helps!
What is the y-intercept of the line that is perpendicular to y = −3x − 5 and passes through the point (−3, 7)?
NEED BEFORE 11:59 ASAP
Answers
Answer:
b=8
Step-by-step explanation:
Perpendicular lines are negative and reciprocal; when you multiply the slopes together, the result is -1.
we are given the line y=-3x-5
we need to find the slope of the new line. To do that, we can use this equation:
-3m=-1
divide by -3 on both sides
m=1/3
so the slope of the perpendicular line is 1/3
We can write our line in slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept, which is what we need
so far our equation is:
y=1/3x+b
we need to find b
we can substitute the point (-3,7) into the equation, since the line will pass through it to solve for b
so:
7=1/3(-3)+b
7=-1+b
8=b
so the y intercept of the line is 8; as a point it's (0,8)
hope this helps!
PLEASE HELP !!!
Jim rolls a fair dice 54 times.
How many times would Jim expect to roll an even number?
Answers
please delete my answer it was wrong I don't want to get a point for the wrong answer. I want other people that have the right answer to get the points. (my answer: 1/54)
Answer: 27
Step-by-step explanation:
It’s soooo correct
Help me please and thank you
Answers
Answer:
B
Step-by-step explanation:
You just count the dots and check the tables.
At the store, Jan bought 1.25 pounds of roast beef, 2 pounds of ham, and 0.8 pounds of
turkey. How many pounds of deli meat did Jan buy in all?
Answers
Answer:
4.05
Step-by-step explanation:
1.25+2+0.8
3.25+0.8
4.05
Answer:
4.05
Step-by-step explanation:
did the math
I think you might need Desmos for graphing?? Explain your answer!
Answers
Yes you are correct! This equation will make a parabola. The width when the arch is at ground level would be the x-intercepts, or zeros, of the parabola.
The vertex point is (0,12)
the axis of symmetry is 0
The zeros are (-4,0) and (4,0)
using the zeros take away the negative because something cant be negative feet wide and add the numbers together (4+4)
Your answer is 8
i attached the graph
Hope this helps you!
P.S. Can i get brainliest? :)
The milligrams of a asprin in a persons body is given by the equation a=500 (3/4)^t where the t is the numbers of hours since the patient took the medicine. How much asprin will be in the patients body after two hours
Answers
Answer: 281.25 milligram
Step-by-step explanation:
Given
Milligrams of aspirin left after t hours is given by
[tex]\Rightarrow a=500(\frac{3}{4})^t[/tex]
for [tex]t=2\ hr[/tex]
[tex]\Rightarrow a=500(\frac{3}{4})^2\\\Rightarrow a=500\times (0.75)^2=281.25\ \text{milligram}[/tex]
if f and g are two functions defined by f(x)=3x+5 and g(x)=x^2+1 then g(f(x)) is
Answers
the answer is A. fggggggggtggg