Answer:
The value of n is n = 2.56 cm
Option D is correct option.
Step-by-step explanation:
Perimeter of hexagon = 14.7 cm
Five sides have length = n cm
One side has length = 1.9 cm
We need to find value of n
The formula used to find Perimeter of hexagon is : [tex]Perimeter = Sum\;of\:all\:sides[/tex]
We can write:
[tex]Perimeter = Sum\;of\:all\:sides\\14.7=5n+1.9\\[/tex]
Because 5 sides have length = n so, 5n and one side has length = 1.9
Now, solving to find n
[tex]14.7-1.9=5n\\5n=12.8\\n=\frac{12.8}{5}\\n=2.56[/tex]
So, The value of n is n = 2.56 cm
Option D is correct option.
8⁴x8²=8 to the power of ____
Answer:
power of 6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
8^4 is 8*8*8*8
8^2 is 8*8
therefore
(8^4) *(8^2) = (8*8*8*8)*(8*8) = 8^(4+2) = 8^6
Plzzzzz helppp I’ll give Brainly
Suppose aisha only reads from 10:15 a.M to 2:10 p.M and from 7:20 p.M to 9.00 p.M each day starting on monday on what day and at what time will she finish reading her book?
Complete Question
Aisha is spending a week at her family’s cottage and wants to read her favourite book, which is 400 pages long.
a) If she reads one page every 36 seconds, how many hours will it take her to read her book?
b) Suppose Aisha only reads from 10:15 a.m. to 2:10 p.m., and from 7:20 p.m. to 9:00p.m. each day, starting on Monday. On what day and at what time will she finish reading her book?
Answer:
a) 4 hours
b) Monday, 7:25 pm
Step-by-step explanation:
a) From the above question, we are told that,
She read 1 page in 36 seconds
Total number of pages in the books = 400
Hence:
1 page = 36 seconds
400 pages = x
Cross Multiply
x = 400 × 36 seconds
x = 14,400 seconds
Converting this to hours
60 seconds = 1 minute
60 minutes = 1 hour
Hence: 60 × 60 = 3600 seconds = 2 hour.
3600 seconds = 1 hour
14400 seconds = x
x = 14400/3600
x = 4 hours
Hence, it takes Aisha 4 hours to finish reading the 400 paged book
b) The number of hours between 10:15 a.m. and 2:10 p.m. is
calculated as:
2:10 pm - 10.15 am
Converting 2:10 pm to a 24 hour clock for easy calculation =
2:10 pm = 14:10 hours
Hence:
14:10 - 10:15
= 3 hours 55 minutes
Remember, from Question a, it takes Aisha 4 hours to finish reading her book and
If 10:15 a.m. to 2:10 p.m = 3 hours 55 minutes, Aisha needs 5 extra minutes to finish her book.
Therefore, she will finish reading her book at 7:25 p.m. on Monday.
10x + 3 = 3(x - 6) - 8x
Answer:
x = 1.333
Step-by-step explanation:
Given equation:
10x + 3 = 3(x - 6) - 8x
10x + 3 = 3x - 6 - 8x ^ Distributive Property of Equality
10x + 3 = -5x - 6 ^ Combine like-terms
15x + 3 = -6 ^ Addition Property of Equality
15x = -9 ^ Subtraction Property of Equality
x = 1 1/3
Express 0.07 as a percent
the answer is 7% i hope this helps you!!!!!!!!!!!!!!
The mean of children in 5 families is 3. How many children might be in each family if none of them have 3 children?? ahh please help this was due two days ago ill give brainliestttt
Answer:
draw a tree diagram to determine the sample space Step-by-step explanation:
The total number of children is 15 if The mean of children in 5 families is 3 and the cases of families having a number of children are given below.
What is mean?Mean is a measurement of a probability distribution's central tendency along the median and mode. It also goes by the name "anticipated value."
Given:
The mean of children in 5 families is 3,
If none of them has 3 children, then the cases are,
Total number of children = 5 × 3 = 15
Divide the 15 children into 5 families,
Family 1 = 1 or 2 or 4
Family 2 = 2 or 1 or 4
Family 3 = 4 or 4 or 4
Family 4 = 4 or 4 or 1
Family 5 = 4 or 4 or 1
The above are some cases of the number of children in families.
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helpppppp someone please
Answer:
x=22/5
Step-by-step explanation:
multiply by 3 on both sides
7+x=6x-15
x=6x-22
-5x=-22
*-1 on both sides
5x=22
x=22/5
Solve the system by any method.
(3x – 4y = -5
(5x + 8y = -1
Answer:
( x , y ) = ( -1,1/2)
Step-by-step explanation:
Solve the equation for X
[tex]\left \{ {{x=-5/3+4/3y} \atop {5x+8y=-1}} \right.[/tex]
Substitute the given value of x into the equation 5x + 8y = -1
5(-5/3+4/3y)+8y=-1
Solve the equation for Y
y=-1/2
Substitute the given value of y into the equation x = -5 / 3 + 4 / 3y
x=-5/3+4/3×1/2
Solve the equation for X
x=-1
The system solution is the computer pair
(x,y)=(-1,1/2)
Check if the ordered pair given to the solution of the system of equations
[tex]\left \{ {{3*(-1)-4*1/2=-5} \atop {5*(-1)+8*1/2=-1}} \right.[/tex]
Simplify the equations
[tex]\left \{ {{-5=-5} \atop {-1=-1}} \right.[/tex]
The ordered pair is the solution of the system of equations, since both equations are true
(x,y)=(-1,1/2)
a circle with a 12 inch diameter is folded in half and then folded in half again to create a quarter circle. what is the perimeter of this shape? HELP ME PLEASE
ANSWER:
21.42
Step-by-step explanation:
if the diameter is 12 inch then radius is 6 inch
formula of perimeter of quater circle is
=2πr/4+2r
=2*3.14*6/4 +12
=37.68+12/4
=21.42
I hope this may helps u
The perimeter of the shape is 21.42 in.
Given:
It will have a perimeter of:
r + r + 1/4C
=2r + 1/2πr
=12 + 1/2*6*3.14
=12 + 9.42
=21.42 in
What is perimeter?A perimeter is a closed path that covers, surrounds, or bounds a two-dimensional shape or a one-dimensional length. The perimeter of a circle or ellipse is called its perimeter. Frame calculus has several practical applications.
To find the perimeter of a rectangle, or the distance, we must add the lengths of all four sides. This can be done efficiently by simply adding the length and width and multiplying that sum by two since there are two lengths on each side. perimeter= (Length Width) × 2 is the formula for perimeter.
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BEG is a triangle ABC And DEF are parellell lines
Answer:
What is the question?
Step-by-step explanation:
Write the equation for a line that passes through the point (-8,2) and is parallel to 5x-4y=4. Enter your equation in slope intercept form with slope written as a fraction
Answer:
y = 5/4x + 12
Step-by-step explanation:
5x - 4y = 4
-4y = -5x + 4
y = (-5x + 4)/-4
y = 5/4x - 1
Parallel Slope ---> m = 5/4
(-8, 2)
y = mx + b
2 = 5/4(-8) + b
2 = 5 * -2 + b
2 = -10 + b
12 = b
b = 12
y = 5/4x + 12 <---- This is the answer
Hope this helps!
32% of 300 is what number?
Answer:
96
Four options to solve:
1. 32% of 300 = 96
OR
2. 32% × 300 = 96
OR
3. 0.32 × 300 = 96
OR
4. [tex]\frac{32}{100}[/tex] × 300 = 96
6th-grade math I NEED THIS DONE URGENTLY
Answer:
31.4 in
Step-by-step explanation:
1st half is 10 in. Multiply that by 3.14 (pi)
31.4
Answer:
62.83
Step-by-step explanation:
Is it 10? as the radius, all you do is 2 pie r
can't find the symbol for pie but 2pie x 10
put the 2 next to the pie symbol btw and you should get 62.83185 blah blah but round that to the nearest tenth and 62.83
3(x+4)=6x solve for x
Answer:
x = 4
Step-by-step explanation:
(First write the equation down)
3 ( x + 4 ) = 6x
(Then use the disstributive property)
3 times x and 3 times 4
3x + 12 = 6x
(Now subtract the same values aka 3x from both sides)
3x - 3x cancels out aka is 0
6x - 3x is 3x
(You now have...)
12 = 3x
(Now you divide both sides by 3)
12/ 3 = 3x/3
12 divided by 3 is 4
the two 3s cancel out leaving you with x
(You now have your answer)
4 = x
(Write it in proper format)
x = 4
All done, hope this helps! :)
Amber buys bottles of lemonade and a bag of cookies at the store. She pays a total of $9.50. The bag of cookies cost $3.25. If she bought 5 bottles of lemonade, how much was each bottle of lemonade?
Correct answer get's brainliest
Answer:
each bottle was 1.25
Step-by-step explanation:
subtract 3.25 from 9.50 and then divide that answer by 5 for the 5 bottles of lemonade
A group of students sold 48 candles in 4 hours Part B At that rate, how many candles can be sold in 9 hours.
Answer:
108 candles would be sold in 9 hours
Step-by-step explanation:
First add 48 + 48 = 96
then 48 divided by 4 = 12
12 + 96 = 108
y=2x-4
graph the line for the given problem
Answer:
y = -4
Step-by-step explanation:
How to find the y intercept:
y=2x-4 (Substitute "x" for zero "0")
y=2*0-4 (Solve the equation)
Answer: y = -4
How to find the x intercept:
y=2x-4 (Substitute "y" for zero "0")
0=2x-4 (Move the variable to the left)
-2x=-4 (Divide both sides)
Answer: x = 2
To graph it, go on your coordinate plane and to the x axis. Once you find the point "positive 2" or 2, go down four spaces to "negative 4" or -4. Then just draw your line and you should have your answer!!
I hope this helped!! :]
The ______ and ______ of a triangle are called elements of a triangle.
Answer:
The side and the Angle
Step-by-step explanation:
The side and Angle of a triangle are called elements of a triangle.
-2 with an exponent of 2, minus 4
Answer:
0
Step-by-step explanation:
-2² - 4
~Simplify
4 - 4
~Subtract
0
Best of Luck!
If a line has a slope of 3/5, and you have chosen two points on the line that have a rise of 15, what is the run?
Answer:
The run is 25
Step-by-step explanation:
Mathematically, the slope of an equation is;
Slope = change in y/change in x
change in y is called the rise, change in x is called the run
slope = rise/run
3/5 = 15/run
run = 15 * 5/3
run = 25
Which of the following statements is equivalent to 10 + 6?
Answer:
16-6=10
Step-by-step explanation:
What are the zeros of the equation x^2+7x+12=0
Answer:x=−3 or x=−4
Step-by-step explanation:Step 1: Factor left side of equation.
(x+3)(x+4)=0
Step 2: Set factors equal to 0.
x+3=0 or x+4=0
x=−3 or x=−4
Which is one way that Earth’s atmosphere supports life?
It filters out oxygen.
It keeps Earth warm.
It increases UV radiation.
It provides a solid shield.which best describes the numbers satisfying the inequality x less-than 7?
Option 2) It keeps earth warm.
-17x = -204
What is x?
x = _
Answer:
x = 12
Step-by-step explanation:
-17x = -204 (Given)
x = 12 (division)
Negative x negative = positive
The equivalent value of the expression is x = 12
Given data ,
Let the equation be represented as A
Now , the value of A is
-17x = -204
On simplifying the equation , we get
-17x = -204
So , the left hand side of the equation is equated to the right hand side by the value of ( -204 )
Opening the parenthesis on both sides , we get
-17x = -204
Divide by ( -17 ) on both sides , we get
x = -204 / -17
x = 204 / 17
On further simplification , we get
x = 12
Therefore , the value of x = 12
Hence , the expression is x = 12
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solving special systems.
Given:
The equations of system of equations are
[tex]y=-4x-6[/tex]
[tex]-4x-y-6=0[/tex]
To find:
The solution of given system of equations.
Solution:
We have,
[tex]y=-4x-6[/tex] ...(i)
[tex]-4x-y-6=0[/tex] ...(ii)
Adding y on both sides in (ii), we get
[tex]-4x-6=y[/tex]
[tex]y=-4x-6[/tex]
It is same as equation (i). So, we can say that equation (i) and (ii) represent the same line or they are coincident.
Thus, the system of equations has infinitely many solutions.
Therefore, the correct option is C.
Divide £208 in the ratio 3:1
How do I do this??
Answer:
s = r1 s = 3.1 s = 3.1
or
v =a/s
v = 208/3.1
v = 67.0968
Step-by-step explanation:
The first part of the ratio would be 156. The second part of the ratio would be 52.
What is Ratio?A ratio is defined as a relationship between two quantities, it is expressed as one divided by the other
To divide £208 in the ratio 3:1, you can use the following method:
Convert the ratio to a fraction by dividing the first number by the sum of the numbers in the ratio (3 / (3+1) = 3/4)
Multiply the fraction by the total amount you want to divide (£208)
The result will be the amount for the first part of the ratio, and the remaining amount is the second part of the ratio.
So the first part of the ratio would be: 3/4 × 208 = 156
The second part of the ratio would be: 208 - 156 = 52
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a + b squared; a=-13 b = -3
Answer:
-3
Step-by-step explanation:
The Binomial Theorem (a+b)2 (a+b)(a+b) a2 +2ab + b2
A dilation has center (0,0). Find the image of the point L(-4,0) for the scale factor 9.
Dg (L=L(Type an ordered pair. Simplify your answer.)
Answer:
L' = (-36, 0)
Step-by-step explanation:
If the point (x, y) is dilated by a scale factor of k about the center (0, 0), then its image is the point (kx, ky)
∵ A dilation has a center (0, 0)
∵ The point L is (-4, 0)
∴ x = -4 and y = 0
∵ The scale factor of dilation is 9
∴ k = 9
→ By using the rule above
∵ kx = 9(-4) = -36
∵ ky = 9(0) = 0
∵ The image of the point L is (kx, ky)
∴ L' = (kx, ky)
∴ L' = (-36, 0)
A random sample of CO2 levels in a school has a sample mean of x¯=598.4 ppm and sample standard deviation of s=86.7 ppm. Use the Empirical Rule to determine the approximate percentage of CO2 levels that lie between 338.3 and 858.5 ppm. Round your answer to the nearest tenth.
Answer:
99.7%
Step-by-step explanation:
we start by getting the z-scores for the values given
We can get the z-scores using the formula below;
z-scores = (x-mean)/SD
for 338.5;
z = (338.5-598.4)/86.7 = -2.99 approximately-3
for 858.5;
z = (858.5-598.4)/86.7 = 3
so we want to get the percentages that lie within 3 standard deviations from the mean
According to the empirical rule, the percentages within 3 SD of the mean is;
100-0.15-0.15 = 99.7%
How would the expression be written using Two Squares
Answer: there is no expression
Step-by-step explanation: