Answers
Answer:
D
Step-by-step explanation:
By definition, π is defined to be the ratio of a circle's circumference to its diameter. In other words:
[tex]\displaystyle \pi=\frac{C}{d}[/tex]
In fact, if you multiply both sides by the diameter d, you can see that:
[tex]C=\pi d[/tex]
Which is the formula for circumference you've been commonly taught.
Related Questions
Which table represent the statement "A computer repairman makes $25 per hour"?
Answers
Answer:
c
Step-by-step explanation:
which expression is equivalent to (3c)-2?
Answers
Answer:
Assuming that the notation there is meant as:
[tex](3c)^{-2}[/tex]
then the answer would be 1/(9c²)
If the -2 is indeed just subtraction and not an exponent, then it is simply 3c - 2
The expression equivalent to 1/9c².
What is expression?An expression is a set of terms combined using the operations +, – , x or for example 4 x − 3 or x 2 – x y + 17 .
An equation states that two expressions are equal in value,
for example 4 b − 2 = 6 .
Given:
[tex](3c)^{-2}[/tex]
To make the power positive, just do the reciprocal
=1/ (3c)²
=1/9c²
Hence, the expression
[tex](3c)^{-2}[/tex] is equivalent to 1/9c².
Learn more about expression here:
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Solve the inequality
Answers
Answer: Hi there, the answer should be the third option v < -8.
C. V < - 8, or v > 0
Hope this helps! ^^
The formula for the volume of this rectangular prism is:
V = x 3 + 5x 2 - 4x - 20
The length is x+5; the width is x+2; the height is unknown. Find an expression for the height.
Show all steps of your work for full credit.
Answers
Answer:
Step-by-step explanation: Explanation:
If
L
,
H
and
W
represent the length, height and width of the prism, then the volume of the rectangular prism is :
V
=
L
.
H
.
W
............. (1)
Given :
V
=
x
3
+
11
x
2
+
20
x
−
32
;
............... (2)
W
=
(
x
−
1
)
;
H
=
(
x
+
8
)
.
Let
L
=
(
x
+
l
0
)
be the expression for the length, then the RHS of equation (1) becomes
L
.
H
.
W
=
(
x
−
l
0
)
(
x
+
8
)
(
x
−
1
)
,
=
(
x
+
l
0
)
(
x
2
+
7
x
−
8
)
=
(
x
+
l
0
)
(
x
2
+
7
x
−
8
)
=
x
3
+
(
7
+
l
0
)
x
2
+
(
7
l
0
−
8
)
x
−
8
l
0
..... (3)
Comparing this to the LHS of equation (1), we get the following set of equations to solve for
l
0
,
7
+
l
0
=
11
;
7
l
0
−
8
=
20
;
8
l
0
=
32
;
l
0
=
4
Therefore
L
=
(
x
+
4
)
What are the zeros of the quadratic equation y=5(2x−1)(x+3)?
Answers
2x - 1 = 0
X + 3 = 0
Now solve for x in both equations
X = 1/2
X = -3
Courtney walks 5 laps around 1/4 mile track. how far does she walk?
Answers
Answer:
1 1/4 miles
Step-by-step explanation:
Write the rate as a unit rate:
400 miles in 8 hours
Answers
Answer:
50miles/hour
Step-by-step explanation:
400/8 is 50.
The rate as a unit rate of 400 miles in 8 hours is 50 miles.
What is difference between rate and unit rate ?"The process of breaking down the cost to a smaller unit reveals the unit rate of the product. Since rate is a ratio that compares two different units."
Based on the given conditions,
Rate as a unit rate :
= [tex]\frac{400}{8}[/tex]
Cross out the common factor
= 50 miles
Hence, the rate as a unit rate of 400 miles in 8 hours is 50 miles.
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Sireuווווורוורי דוי יורודות
ICC.
In...
Problem ID: PRA3MGT
221
R
3.xº
4x
Write an equation for the angle relationship shown in the figure.
КәБебиә
Answers
Answer:
I have no clue what this is but ok
What is 15 didvide 7.35
Answers
Answer:
2.04081632653
Step-by-step explanation:
If you wanted to round it, it would be 2 because the 4 isn't enough to bump it up. Hope this helped you!
Answer:
2.04
Step-by-step explanation:
I need help please.
Answers
Answer:
A. 88.75%
Step-by-step explanation:
Please answer this correctly without making mistakes
Answers
Answer:
7 tbsp and 2 tsp
Step-by-step explanation:
38 tbsp = 114 tsp
115tsp / 5 = 23
23 tsp = 7 tbsp and 2 tsp
Explain whether the following statement is true or false. The function notation f-1(x) means 1/f(x)
Answers
Answer:
True
Step-by-step explanation:
f-1(x) otherwise known as the inverse of f(x) is the mathematical equivalent as 1/f(x).
Being inverse simply means that it "reverses" the operation that was applied to it with the original function .
For example: suppose f(x) = x+1, then if x = 1, f(1) = 1+1 =2
Now if we do f-1(x) or 1/f(x), then 1/f(1) = 1/1 +1 = 1/2
So, 2/1 is in fact the inverse of 1/2.
Hence, f-1(x) is the same as 1/f(x)
Exercise
Sophia's friend has saved $118 but is not sure how many songs she can afford if she buys the membership and
some songs. Use the expression in part (b) to write an equation that can be used to determine how many
songs Sophia's friend can buy
Answers
Answer:
Step-by-step explanation:
Pls help me I’ll brainlest due in 10 minutes
Answers
Answer:
7.65
Step-by-step explanation:
Add 1.8 to 5.85 to find initial height
7.65 just add the 2 I answered first btw! Give brainliest pls since im first.
PLEASE PLEASE IM BEGGING HELP ME!! Translate this sentence into an equation.
72 is the product of 4 and Gail's score.
Use the variable g to represent Gail's score.
Answers
Answer: Translate this sentence into an equation. The product of Greg's age and 6 is 102. Use the variable g to represent Greg's age.
Ans :-g*6=102
Step-by-step explanation: hope it help
PLEASE MARK Me BRAINLYEST PLEASE!!! PLEASE!!!! I REALLY Need IT PLEASE!
Which table represents the statement "Brian rides a bicycle at a rate of 12 meters per second"? Seconds /meters
Answers
Answer:
D
Step-by-step explanation:
The rate of 12 meters per second means that the constant of proportionality (k) or slope = 12.
That is m/s = 12.
The table that has a constant of proportionality that equals 12 is the table that represents the statement given.
The table in option D has a constant of proportionality of 12, since the ratio of m/s for all its given pair of values will give us 12 all through.
Answer:
I think your answer is B
Step-by-step explanation:
Select the correct answer. For which quotient is x=7 an excluded value?
Answers
Answer:
[tex]\frac{7x}{x^2 - 10x + 21} / \frac{x + 7}{7}[/tex]
Step-by-step explanation:
Given
See attachment
To answer this question, we start by equating the denominators of each option to 0; then, solve for x
(a):
[tex]\frac{7x}{x^2 - 10x + 21} / \frac{x + 7}{7}[/tex]
This gives
[tex]\frac{7x}{x^2 - 10x + 21} * \frac{7}{x + 7}[/tex]
Set the denominator to 0
[tex](x^2 - 10x + 21)(x + 7) = 0[/tex]
Solve for x
[tex](x^2 - 7x - 3x + 21)(x + 7) = 0[/tex]
Factorize:
[tex](x(x - 7) - 3(x - 7))(x + 7) = 0[/tex]
[tex](x - 7)(x - 3)(x + 7) = 0[/tex]
This implies that:
[tex]x = 7\ or\ x = 3\ or\ x = -7[/tex]
From above, one of the values of x is 7.
This implies that x = 7 is an excluded value for this quotient.
Other options do not need to be checked, since there is only one answer.
Answer:
A
Step-by-step explanation:
Which measurements are equal to 671 decimeters? Check all that apply.
67,100 millimeters
0.671 kilometers
67.1 hectometers
6.71 decameters
6,710 centimeters
Answers
Answer:
d and b
Step-by-step explanation:
Answer:
67100 millimeters
Step-by-step explanation:
Someone help me please!
Solve the equation 1/4t + -6 = -4
Answers
Answer:
The answer is t=8
Step-by-step explanation:
simplify both sides or the equation, then isolate the variables
Answer:
t = 8
Step-by-step explanation:
Isolate the variable, t. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operation, and stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, add 6 to both sides of the equation:
1/4t + (-6) = -4
1/4t - 6 = -4
1/4t - 6 (+6) = -4 (+6)
1/4t = -4 + 6
1/4t = 2
Next, multiply 4 to both sides of the equation to isolate the variable, t:
4 * (1/4)t = (2) * 4
t = 2 * 4
t = 8
t = 8 is your answer.
~
PLS HELP ME WITH THIS ALGEBRA!
A salt solution contains 10% salt and weights 80g. How much pure water must be added so that the percentage of salt drops to 4%
Answers
Answer:
120 gStep-by-step explanation:
A salt solution contains 10% salt and weights 80g.
Salt content of the solution is:
80*0.1 = 8 g4% solution has 8 g salt, total solution is:
0.04x = 8x = 8/0.04 = 200 gWater to be added:
200 - 80 = 120 g5( 3+7) =
Distributive property solving?
Answers
Answer:
50
Step-by-step explanation:
5(3 + 7)
15 + 35 = 50
I NEED HELP. This id due in 2 hours, i dont get it pls help me. THis is worst 60% of my grade make sure its correct pls and thanks
Answers
Answer:
Four pounds of strawberries costs $12: y=3x
Ben reads 5 novels per month: y=5x
Maya puts $4 into her bank account each week: y=4x
You are having a picnic and need to buy paper plates. A store sells
two different brands of paper plates. Brand A costs $.96 for 12 paper
plates, and Brand B costs $1.40 for 20 paper plates. How much
money will you save if you buy 60 of the brand of paper plates with
the lower unit price?
Answers
Given the following sequence, how many circles will be in the 6th term?
Answers
Answer:
25 i think
Step-by-step explanation:
A man travels 13.2 by train, 45.07 by bicycle, and 17.2 by car. How far did he 5 travel?
Answers
Answer:
75.47
Step-by-step explanation:
Hey there !!!!!
to, see how much did the man travel in total. you just add all of the distances that the man traveled.
he traveled:
13.2 by tairn
45.07 by bicycle
17.2 by car
if you add all of them up :
45.07 + 13.2 = 58.27
58.27 + 17.2 = 75.47
have a wonderful day
Answer:
75.47
Step-by-step explanation:
because the sum of 13.2,45.07 and 17.2 is 75.47
HOW MANY TIMES DOES 9 DIRECTLY PRECEDE 2 IN THIS SEQUENCE: 12909296292629
Answers
9 directly precede 2, 4 times, in the sequence, 12909296292629.
What is a sequence?An ordered list of things is a sequence (or events). Similar to a set, it has members (also called elements, or terms). The length of the sequence is the number of ordered items (potentially infinite).
In the given sequence,
12909296292629,
there are 4 such 9's that are preceded by 2 immediately.
That means, for the clear representation,
1-29-09-29-6-29-26-29
Therefore, there are 4 such 9's that are preceded by 2.
To learn more about the sequence;
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In a random survey of 300 people about the kind of apples they preferred, 178 said they preferred red apples. Based on these results, how many people out of 4500 would say they prefer red apples?
A.1830
B.2670
C.3084
D.4322
Answers
Answer:
2670
Step-by-step explanation:
4500/300 = 15
178*15=2670
Given that line AD ll to line EH, find the measure of
Answers
Answer:
x=7.5
Step-by-step explanation:
Since AD II EH, ∠CBD=∠BFH (alternate angles)
2x+60=10x
8x=60
x=7.5
Answer:
x = 7.5
each angle measures 75°
Step-by-step explanation:
the two angles are corresponding, meaning they are equal
10x = 2x + 60
8x = 60
x = 7.5
1. Louis ran a race in 2.4 minutes. Laura ran the same race in 124 seconds. What is the difference between the two times?
Answers
Louis: 2.4 minutes is 2 minutes and 24 seconds (0.4 minute is 24 seconds)
So, the difference between the times is 20 seconds. Laura was 20 seconds faster.
Answer:
20 sec
Step-by-step explanation:
2.4 in = 144 sec
124
144 - 124 = 20
Which ordered pair represents the solution to:
2x + 3y = 22
| 3x + 2y = 18
O A. (6,2)
OB. (-8,16)
OC. (8.-16
OD. (-2,6)
O E. (2,6)
Answers
3x6=18
12+18=22
2x3=6
2x6=12
6+12=18