Explicação passo a passo:
A circunferência de um círculo é expressa como mostrado;
C = 2πR
R é o raio
Em termos de diâmetro;
C = πD
D é o diâmetro
a) Se o diâmetro for 10cm
Circunferência C = π (10)
C = 10 (3,14)
C = 31,4cm
b) Se o raio for 12cm
C = 2πR
C = 2π (12)
C = 24π
C = 24 (3,14)
C = 74,36cm
c) Se o diâmetro for 2cm
Circunferência C = π (2)
C = 2 (3,14)
C = 6,28cm
d) Se o raio for 5cm
C = 2πR
C = 2π (5)
C = 10π
C = 10 (3,14)
C = 31,4cm
Which proportional relationship has the greatest rate of change?
Answer:
The answer is A.
Step-by-step explanation:
A- slope is 7
B- slope is 3
C- slope is 4
D- slope is 6
The first option, [tex]y=7x[/tex] has greatest rate of change.
Any relationship which have greatest slope, that relationship will also have greatest rate of change.
First option is, [tex]y=7x[/tex] , compare with y = mx
Slope = 7
Slope of option B is, [tex]=\frac{12}{4} =3[/tex]
Slope of option C is, [tex]=\frac{8}{2}=\frac{16}{4} =4[/tex]
Slope of option C is, [tex]=\frac{2}{1}=\frac{4}{2}=2[/tex]
From slope of all options , it is observed that function y = 7x has greatest slope.
Hence, first option y = 7x has greatest rate of change.
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5y= 1/2x -10 find slope and y intercept.
Answer:
Slope = 1/10
Y intercept = -2
Step-by-step explanation:
5y = 1/2x - 10
Divide both sides by 5
5y/5 = 1/2x - 10 /5
You will get y = 1/0x - 2
The x part is the slope and the whole number on the far right is the y intercept.
So the slope is 1/10
The y intercept = -2
what is 1/2 of 6/7
Answer:
3/7
Step-by-step explanation:
6/14 which equals 3/7
This toy barn has floor dimensions of 2 in. by 3 in. The height of the roof is 0.5 in. If the volume of the barn is 16.5 in.3, what is the height of the rectangular prism section of the toy barn?
2 inches
2.5 inches
3 inches
3.5 inches
Answer:
2.5 inches
Step-by-step explanation:
woot
Answer:
2.5
Step-by-step explanation:
You start at 1,0. You move left 1 unit. Where do you end?
Answer:
(1-1,0) = (0,0)
Step-by-step explanation:
Which expression represents the sum of 31 and 104,
divided by 3?
Answer:
The answer is 45Step-by-step explanation:
Well all you really need to do is add 31 and 104 which is 135 then divide it by 3 and well you got the answer 45
The expression (31 + 104) / 3 is equal to 45.
The expression that represents the sum of 31 and 104, divided by 3, can be written as (31 + 104) / 3.
To calculate the value, we start by evaluating the sum of 31 and 104, which gives us 135. So, the expression becomes 135 / 3.
Dividing 135 by 3 yields a result of 45.
Therefore, (31 + 104) / 3 is equal to 45.
The expression simplifies the process of finding the sum of the two numbers (31 and 104) by first adding them together and then dividing the sum by 3. This calculation provides a concise representation of the desired arithmetic operation and its solution.
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The measures of the angles of the triangle solve for x
Answer:
x = 8
Step-by-step explanation:
if the angle is equal to 36º that means (3x+12)º = 36º so simplify the equation and solve for x
3x+12 = 36
3x = 24
x = 8
Answer:
x = 8
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180, that is
3x + 12 + 54 + 90 = 180, simplify
3x + 156 = 180 ( subtract 156 from both sides )
3x = 24 ( divide both sides by 3 )
x = 8
1) Find f(g(x)) and
9(f(c)).
Given: f(x) = 5x; g(x) = x - 3
f(g(x))
Step-by-step explanation:
= f(g(x)) = g(f(x))
= f(x - 3) = g(5x)
= 5(x- 3) : 5x - 3
: 5x - 15
Which system matches the graph below?
y = -4 x and y = 2 x - 3
y = -4 x and y = 2 x + 3
y = 4 x and y = 2 x - 3
y = -4 -x and y = 2 x - 3
Answer:
(a)
Step-by-step explanation:
[tex]y= -4^{x}[/tex] and y = 2x - 3
2) Five and one-half feet is
equal to how many inches?
Answer:
66
Step-by-step explanation:
Which statement is true about this equation?
-9(x + 3) + 12 = -3(2x + 5) - 3x
ОА.
The equation has one solution, x= 1.
OB.
The equation has one solution, x = 0.
OC. The equation has no solution.
OD.
The equation has infinitely many solutions.
Answer:
D
Step-by-step explanation:
-9x-27+12 = -6x-15-3x
0=0
D) the equation has infinitely many solutions
Which factors of 18 are also factors of 36?
Answer:
21
Step-by-step explanation:
:) ur welcome its not rlly the answer btw
The town of Simpsonville has two tow truck companies. Company A charges an initial fee of $30 plus $2 per mile. Company B charges an initial fee of $20 plus $4 per mile. Use the graph to determine when it's cheaper to use Company B instead of Company A. Question 11 options: A) Towing 5 miles
Answer:
What are the other options? Any option with a number of miles less than 5 is right
Step-by-step explanation:
Answer:underlined and bold is answer!!
A)
Towing 5 miles
B)
Towing more than 5 miles
C)
Towing more than 5 miles but less than 15 miles
D)
TOWING FEWER THAN 5 MILES
Step-by-step explanation:
Use quadratic formula to solve 16+8x+x^2=0
Answer: x=-4
Step-by-step explanation:
What would the slope for this graph be?
Answer:
3/1
Step-by-step explanation:
you just start at the point where the line intersects the corner
50 POINT QUESTION ANSWER PLEASE!!!!
Answer:
A=Height squared x base divided by 2
Step-by-step explanation:
Helpppppppppppppppppppppppp pleaseeeeeeeeeee
Answer:
true
Step-by-step explanation:
Answer:
im just starting 6th grade sheeeeeesh
Step-by-step explanation:
if i were u i would just guess its ok to get 1 thing wrong :)
Just number 4 plz help
Answer:
They are similar
Step-by-step explanation:
the rectangle have the same proportions
the sides of the big one are 4:6 and the small one is 2:3
they both simplify to 2:3 so that means they have the same proportions which means they are similar
List two main differences between an expression and an equation
Answer
A expression is an number or a variable and a combination of numbers in variables and operation symbols. A equation is made up of two expressions or connected by an equal sign.
Step-by-step explanation:
The sum of two consecutive even integers is 48 less than 3 times the largest integer. Find both integers algebraically.
Answer:
44 and 46Step-by-step explanation:
Let the integers be:
n and n + 2Then we have:
n + n + 2 = 3(n + 2) - 48Solving for n:
2n + 2 = 3n + 6 - 483n - 2n = 2 + 48 - 6n = 44So the numbers are 44 and 46
simplify -6/3 divided by 2/-9
Answer:
9
Step-by-step explanation:
Answer:
its 4 over 9 :)
Step-by-step explanation:
Anyone willing to help? Surprise included
Answer:
An arithmetic sequence has a constant difference between each term.
For example: 2,4,6,8,10,12,…
We can see clearly that all the terms differ by +2.
We call this the common difference, d.
A geometric sequence has a constant ratio (multiplier) between each term.
An example is: 2,4,8,16,32,…
So to find the next term in the sequence we would multiply the previous term by 2.
This is called the common ratio, r.
These sequences are closely related as they both have the same first term, but I hope you can see how different they become if they have a common difference or a common ratio.
We can create a decreasing arithmetic sequence by choosing a negative common difference.
Similarly, a decreasing geometric sequence would have a common ratio of less than 1.
Step-by-step explanation:
Evaluate Functions
Given f(x) = 2x + 6 and g(x) = 5x - 1
Evaluate f(-2)
Answer:
f(-2) = -4x + 6
Step-by-step explanation:
f(x) = 2x + 6
f(-2) = -2(2x) + 6
f(-2) = -4x + 6
Answer:
f(- 2) = 2
Step-by-step explanation:
To evaluate f(- 2), substitute x = - 2 into f(x), that is
f(- 2) = 2(- 2) + 6 = - 4 + 6 = 2
if i have 2 cookies but share 1/2 with my friends how many coookise i shared
Answer:
1 cookie
Step-by-step explanation:
2 times 1/2=1
How this works: Since your sharing 1/2, you technically sharing one half of 2 cookies. One half of 2 cookies is 1 cookie.
Answer:
1 coookise
Step-by-step explanation:
1/2 of 2 is 1
6
Lisa wrote 10 letters on 10 slips of paper. She put the slips of paper in a hat to be randomly selected. The table below
shows the probability for each letter to be randomly selected,
Letter Probability
A
0.2
С
0.2
E
0.3
L
0.1
R
0.1
T
0.1
Which event is most UNLIKELY to occur?
A
A consonant at the beginning of the alphabet is chosen
B The letter A or T is chosen.
C A vowel near the beginning of the alphabet is chosen
D A consonant is chosen.
Am I right
Answer:
b
Step-by-step explanation:
Event is most UNLIKELY to occur is L, R and T. Therefore, option D is the correct answer.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes
Given that, Lis
Lisa wrote 10 letters on 10 slips of paper.
If the event is “likely” to happen, the probability will be between 1/2 and 1.
If the event is “unlikely” to happen, the probability will be between 0 and 1/2.
From the table,
Probability of getting letter L, R and T is 0.1
Therefore, option D is the correct answer.
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Find the value of x in the triangle shown below.
x = ___°
-3 + 4b + 6 = 9+ 4b - 6
O infinitely many solutions
O one solution
Ob=3
no solution
Answer:
Infinitely many solutions
Step-by-step explanation:
-3 +4b+6=9+4b-6
subtract 4b on both sides( canceling equal terms on both sides)
calculate the sum:
-3+6=9-6
-3+6= 3
9-6=3
3=3
write the ratio in the simplest form
Answer:
what's the ratio?
Step-by-step explanation:
Answer:
whats the ratio
Step-by-step explanation:
There are 7 girls and 13 boys in a class at a Private
School. Of these students, 5 girls and 3 boys are in
the Running club. What percentage of the students
at this Private School are in the Running club?
Answer:
40%
Step-by-step explanation:
Number of girls = 7
Number of boys = 13
Total students = 7 girls + 13 boys
= 20 students
Running club
Number of girls = 5
Number of boys = 3
Total students in the running club = 5 girls + 3 boys
= 8 students
percentage of the students that are in the Running club = Total students in the running club / Total students
× 100
= 8/20 × 100
= 0.4 × 100
= 40%
Percentage of the students
at this Private School are in the Running club is 40%
Relative maximum and minimum of f(x) = -x^4+2x^2-x-2
Step-by-step explanation: