Answer: the answer is D
Step-by-step explanation:
Answer:
How can air pollution be reduced
Step-by-step explanation:
Unless someone wants everyone to die sooner then this should be the main concern
Will mark branliest. What can the maximum number of digits be in the repeating block of digits in the decimal expansion of 1/17?
Answer:
Step-by-step explanation:
Let n=2α⋅5β⋅m , where gcd(m,10)=1 . Then, the decimal expansion of 1n is of the form
0.a1…akak+1…ak+ℓ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯(1) ,
where k=max{α,β} and ℓ is the least positive integer for which m∣(10ℓ−1) . In other words, ℓ is the order of 10 in the multiplicative group of units modulo m . So ℓ∣ϕ(m) by Lagrange's theorem.
In particular, if gcd(n,10)=1 , then α=β=k=0 , m=n , and
1n=0.a1…aℓ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯(2)
Therefore, we know that
117=0.a1…aℓ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯(3)
Here ℓ is the least positive integer for which 17 divides 9…9ℓtimes , and we know that ℓ divides ϕ(17)=16 .
Successively squaring 10 modulo 17 gives
102≡−2(mod17),104≡4(mod17),108≡−1(mod17),1016≡1(mod17) .
So ℓ=16 in expansion (3) .
In fact,
a1…a16×17=1016–1.
a1…a8+a9…a16=108−1 .
The first fact has nothing to do with the denominator n being prime. The second fact has everything to do with n being prime, and was discovered by E. Midy in 1836 .
Giving brainlist to whoever answers this question
Answer:
thanks :)
Step-by-step explanation:
can someone help me with this
Answer:
29
Step-by-step explanation:
Answer and explain how you gotttt it please
Answer:
x= 17
Step-by-step explanation:
5x-7=3x+27
move 3x to other side by doing the oppostie (subtracting 3x)
5x-7-3x=27
2x-7=27
move -7 to other side by adding it (to the other side)
2x= 7+27
2x= 34
divide by 2 (on both sides) to get x by itself
2x/2=34/2
x= 17
A carnival charges $5 to enter, and $2 per ride. If you paid a total of $23, how many rides did you go on at the carnival?
Answer:
11.5
Step-by-step explanation:
You divide 2 and 23
But I am not sure
Answer: 9 rides
Step-by-step explanation:
23 dollars minus the five dollars to enter is $18.
$18 is divided by the $2 required to ride each ride.
Math question pls help
Answer:
170 pages
Step-by-step explanation:
Find the value of x (helppppppppppppoppppppp)
Eloise is creating a game for her Strategic Games option.
Her square game board will have 64 squares on the inside and a decorative border around the outside edge.
What is the length of the border?
What assumptions can you make?
Hello can anyone give me the full answer to this? will give brainiest
Part 1: 3 forms a right traingle; the rest do not.
Part 2:
7) 8.94
8) 6.71
9) 12.21
10) 7.62
11) 7.28
12) 6.32
If a candy bars original price was $2 and the amount of the discount was $0.30 how much is the percent of discount off?
15% off........................................
Which algebraic expression is equivalent to the expression below?
7(6x+2)+5x
A.
11x + 2
B.
42x + 14
C.
47x + 2
D.
47x + 14
Answer:
D.
Step-by-step explanation:
[tex]7(6x + 2) + 5x \\ 42x + 5x + 14 \\ 47x + 14[/tex]
the table shows the number of cups of water required when cooking different amounts of rice
The ratio of pink flowers to purple flowers is 4 to 6. If there are 30 pink flowers, how many purple flowers are there?
If there are 30 pink flowers the number of purple flowers will be 45.
An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. The numerical relationship between two values demonstrates how frequently one value contains or is contained within another.
Given that the ratio of pink flowers to purple flowers is 4 to 6 and there are 30 pink flowers,
The number of purple flowers will be calculated as,
4/30 = 6/x
Solve for x
4x=180
X=45
To know more about ratios and proportions follow
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Which two teams have equivalent
100
ratios of wins to losses?
Team Wins Losses
Leopards
15
10
Pirates
12
8
Knights
14
7
Lions
18
10
Answer:
knights and leopards
Step-by-step explanation
Find the volume of a baseball if the diameter is 2.86 inches
Answer:
8.1796
Step-by-step explanation:
2.86 x 2.86 = 8.1796
what is 2x3x4x2x88x9x112x100x9x2?
;)
Answer:
7664025600
Step-by-step explanation:
I basically just multiplied first then added the sums. Also you can use a calculator to make sure ur answer is right.
Plsss help again! ( and tysm for the ppl who helped me last time I appreciate it :) /
n have a good day <33!!! ( like again lol!! )
Answer:
2
Step-by-step explanation:
It's 2 because as you can see in the botton 4/10 and 8/20, 4 x 2=8 and 10 x 2=20. It's like saying you're multiplying the same thing for the top and bottom of both fractions. So, the two fractions on the top with the juice is getting multiplied by 4.
Answer:
2
Step-by-step explanation:
24÷6=4
knowing this you then divide 8 by 4 to get the numerator
8÷4=2
in PQR the measure of R=90, QR=61 feet and RP=90 find the measure of P to the nearest tenth.n
Which expression shows the area of the base of each pyramid? (One-fourth x) squared in.2 (One-third x) squared in.2 (One-half x) squared in.2 x2 in.2
Answer:
(a) [tex]Area = (\frac{x}{4})^2[/tex]
Step-by-step explanation:
The question is incomplete. (See comment for complete question).
From the completed question, we have:
[tex]Total\ base\ length = x[/tex]
[tex]n = 8[/tex] --- number of pyramids
Required
An expression for the area of the base
The total base length of the pyramid represents the perimeter of the base.
And since the base is a square, then the following relationship exist.
[tex]Total\ base\ length = 4L[/tex]
Where L represents the length of each side.
This gives
[tex]4L = x[/tex]
Make L the subject
[tex]L = \frac{x}{4}[/tex]
The area of the base is then calculated as:
[tex]Area = L^2[/tex]
[tex]Area = (\frac{x}{4})^2[/tex]
Answer:
A
Step-by-step explanation:
Which expression represents the relationship between the step number n and the total number of small squares in the pattern?
A pattern of small squares. Step 1 has 0 squares. Step 3 has 3 squares: 2 by 2 but missing the lower right square. Step 3 has 8 squares: 3 by 3 but missing the lower right square.
A.
B.
C.
D.
Answer: n squared - 1
Step-by-step explanation:
The relationship between the step number {n} and the total number of small squares in the pattern is -
f(n) = 2ⁿ - 1.
What is expression in mathematics?An expression in mathematics is a combination of terms both constants and variables.
Given is a pattern of small squares as described -
Step 1 has 0 squares.
Step 2 has 3 squares : 2 by 2 but missing the lower right square.
Step 3 has 8 squares : 3 by 3 but missing the lower right square.
We can write the general expression for step {n} as -
Step {n} will have : 2ⁿ - 1 squares with missing the lower right square.
or
f(n) = 2ⁿ - 1
Therefore, the relationship between the step number {n} and the total number of small squares in the pattern is -
f(n) = 2ⁿ - 1.
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An amount was decreased by 8%. The new amount is $27.60. What was the original amount?
Answer:
$30.00
Step-by-step explanation:
$27.60/0.92 = $30.00
Answer:
$30
Step-by-step explanation:
92% = $27.60
1% = $27.60/92
100% $27.60/92 x 100
100% = $30
NOTE: The / is a fraction
Hope this helps!
Mary saw a bottle of shampoo that cost $7.75 and a bottle of conditioner that cost $5.90.
Estimate the price difference between the conditioner and the shampoo.
Answer:
$1.85
Step-by-step explanation:
PLS HELP MEEEEE!!!!!!!
Answer:
i think true hehehehehehehhehehehehe
Answer:
True
Step-by-step explanation:
Some people think a long drought may have occurred. However this information is not proven.
5/8 = x/6
All them numbers are fractions
Find X
Answer:
x = 3.75
Step-by-step explanation:
You need to cross multiply.
First multiply 6 and 5, then divide that by 8.
Good Luck!!
Answer:
Step-by-step explanation:
hello :
5/8 = x/6 means : 8x = 30
x = 30/8
A transformation in which a graph or geometric figure is picked up and moved to
another location without any change in size or direction.
Answer:
translation. A transformation in which a graph or geometric figure is picked up and moved to another location without any change in size or orientation is a translation.
Regina buys eggs at the local supermarket. They are sold in different quantities and at different prices. The quantities and prices are shown.
Brand A: 6 eggs $1.77
Brand B: 12 eggs $3.75
Brand : 18 eggs $5.24
Brand D: 24 eggs $7.10
Assuming all the eggs are of similar quality, which decision should Regina make if she wants to get the best price per egg?
Help
Answer:
Brand C
Step-by-step explanation:
Brand A: 1.77/6=$0.30
Brand B: 3.75/12=$0.31
Brand C: 5.24/18=$0.29
Brand D: 7.10/24=$0.30
Based on the price per egg of each brand (calculated above), the best price per egg would be brand C.
PLEASE HELP ME !!! I NEED HELPPP
What single decimal multiplier would you use to increase by 9% followed by a 6% decrease?
Answer:
0.9646
Step-by-step explanation:
:)
Giving brainlist to whoever answers this question
Answer:3x +56
Step-by-step explanation:
Solve The Quadratic Equation by the Square Root Method.
(x + 1)^2-4 = 0
Answer:
Step-by-step explanation:
Answer:
x=-3, x=1
Step-by-step explanation: