Answer:
The distance would be 12.31073415. Rounded, 12.31
Step-by-step explanation:
First off, we know a decagon has 10 sides. Secondly, it is given that the total side length is 8 feet- split in half it's 4 and 4 (this will come into play in the formula). Next, we want to find the angle measure of one of the isosceles triangles. Thus, do 360/10 which gives 36. Then do 36/2 which equals 18. This is the angle measure we need. Now that we have the necessary information, we can set up the formula. Following SOHCAHTOA, we can see that we need to use the tangent to find the apothem since our opposite side length of 4 is given. Set up the equation like so: tan18 = 4/a. When plugged in and solved, the answer of 12.31073415 is received.
I hope that helped!
a bakery used 25% more butter this month than last month if the bakery used 240 kilograms of butter last month how much did it use this month
Answer:
300
Step-by-step explanation:
25% of 240 is 60.
A car salesman receives 3% commission on his total weekly sales. Last week his total sales were £28500
How much commission does he earn?
–19w + 11 = –17w − 19
w=
Please help, will mark brainliest to correct answer!
Answer:
w = 15
Step-by-step explanation:
We have an expression and are asked to solve for w.
-19w + 11 = -17w - 19
Subtract 11 from both sides :
-19w = -17w - 30
Add 17w to both sides :
-2w = -30
Divide -2 from both sides to isolate w :
w = 15
Multiplying by which number is equivalent to a decrease of 11%
Answer:
n = the number
3n = three times the number
3n - 11 = three times the number decreased by eleven
Step-by-step explanation:
For the expression 6 - y + 3, determine the coefficient for the variable
term.
-1
0
3
6
Answer:
Step-by-step explanation:
The coefficient of a variable is always the number before the variable, if there is no number before a variable the coefficient is always 1.
In this case, since the subtraction sign is before the variable, you will need to make the variable positive by making the coefficient of variable y, -1.
In short terms, your answer is -1. :)
The perimeter of a triangle is 90 cm. The lengths of the sides of the triangle are in the ratios 3:5:7 Work out the length of the longest side of the triangle.
Answer:
9cm 5:9
Step-by-step explanation:
pls help me i need to write this for an exam
Describe how you determine the sign of the sum,difference,product,and quotient of two integer numbers
Answer:
i would ask someone else sorry
Step-by-step explanation:
Please can you help me on this equation.I just cant seem to solve this though i mostly don't need help.Thank you [tex]\frac{1}{x^2+1} -\frac{x^4}{x^2+1}+\frac{x^4}{x^2-1} -\frac{1}{x^2-1}[/tex]
Answer:
2
Step-by-step explanation:
combine like denominators:
(1-x^4)/(x^2+1)+(x^4-1)/(x^2-1)
factor:
(1-x^2)(1+x^2)/(x^2+1)+(x^2+1)(x^2-1)/(x^2-1)
reduce:
(1-x^2)+(x^2+1)
1+1=2
3. A sprinkler rotates 75°, pauses, and then rotates another 75°, How many degrees did it rotate altogether?
0 degrees
140 degrees
150 degrees
160 degrees
Help?
Answer: 150 degrees
Step-by-step explanation:
The number of degrees did it rotate altogether should be considered as the 150 degrees.
Calculation of the number of degrees:Since A sprinkler rotates 75°, pauses, and then rotates another 75
So, here total degrees be like
= 75 degrees + 75 degrees
= 150 degrees
hence, The number of degrees did it rotate altogether should be considered as the 150 degrees.
Learn more about degrees here: https://brainly.com/question/18313843
The third term in an arithmetic sequence is 9 and the fifth term is 21 . If the first term if a1, which is an equation for the nth term of this sequence?
A:an=6n-9
B:an=14n+6
C:an=6n+14
D:an=9n-6
Answer:
A: an = 6n - 9
Step-by-step explanation:
third term in an arithmetic sequence is 9
a3 = a + 2d
a + 2d = 9
the fifth term is 21
a5 = a + 4d
a + 4d = 21
a + 2d = 9 (1)
a + 4d = 21 (2)
Subtract (1) from (2) to eliminate a
4d - 2d = 21 - 9
2d = 12
d = 12/2
d = 6
Substitute d = 6 into (1)
a + 2d = 9 (1)
a + 2(6) = 9
a + 12 = 9
a = 9 - 12
a = -3
nth term of this sequence = a + (n - 1)d
= -3 + (n - 1)6
= -3 + 6n - 6
= 6n - 9
an = 6n - 9
0.583
What is it in standard form
Answer:
It should be 583*10^-3
A jacket sells for $24.99. All the merchandise in the store is on sale at a 25% discount. If the sales tax is 8%, what will a customer pay for the jacket?
Answer:
$20.24
Step-by-step explanation:
Since the 25% discount takes off a quarter of the price, we multiply 24.99 by 3/4
24.99 x 3/4 = 18.74
So with the discount and without tax, the cost of the jacket is 18.74
Then we add 8% for sales tax
8% of 18.74 is $1.50
18.74 + 1.5 = 20.24
So the final cost of the jacket is $20.24
I saw this was your first question. Welcome to Brainly.
Pls help for my math class!
Answer:
i think it is b but i am not 100%
sorry if i am wrong
Step-by-step explanation:
Answer fast!!!!!!!!!!!!!!
please help immediately this is 2 days late
Answer:
51
Step-by-step explanation:
What expression is equivalent to 9(9m + 3t)?
Answer:
81m+27t
Step-by-step explanation:
Answer:
81m + 27 t
Step-by-step explanation:
Find the volume of each shape shown. Show all work!
Answer:
cylinder: v= 6616.19
cone: v=4539.6
Step-by-step explanation:
cylinder: π r²h
pi= 3.14
radius/r=9
height/h=29
29* 9² * π= 6616.19
cone: π r² [tex]\frac{h}{3}[/tex]
pi= 3.14
radius/r=17
height/h=15
π * 17² * 15=4539.6
hope this helps :) have a nice day !!
3. Which of the following equations would not have a solution that is the same as the solution to the system
shown below
2x + 3y = 1. x-y=5
(1) 3x+2y=6
(3) 5y=-9
(4) 2x-2y=5
(2) 4x+6y=2
Answer:
A
Step-by-step explanation:
The solution that is not the same as the solutions to the system of equations is 2x - 2y = 5.
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We have,
2x + 3y = 1 _____(1)
x - y = 5 _______(2)
From (1) and (2) we get,
x = 5 + y
2 (5 + y) + 3y = 1
10 + 2y + 3y = 1
10 + 5y = 1
5y = -9
y = -9/5
Now,
x = 5 - 9/5
x = (25 - 9)/5
x = 16/5
The solutions are x = 16/5 and y = -9/5.
Now,
(1) 3x + 2y=6
3 x (16/5) + 2 x (-9/5) = 6
48/5 - 18/5 = 6
30/5 = 6
6 = 6
(2) 5y = -9
5 x (-9/5) = -9
-9 = -9
(3) 2x - 2y = 5
2 x (16/5) - 2 x (-9/5) = 5
32/5 + 18/5 = 5
50/5 = 5
10 ≠ 5
(4) 4x + 6y = 2
4 x (16/5) + 6 x (-9/5) = 2
64/5 - 54/5 = 2
10/5 = 2
2 = 2
Thus,
3x+2y=6, 5y=-9, and 4x+6y=2 have the same solutions.
Learn more about solutions of equations here:
https://brainly.com/question/545403
#SPJ2
here is the answer to ur question
Thanks, i really dont get how you are answering your own question but thanks anyway
.
Please help me. Can you help me do A,B,C,D,E, and F please
Answer:
KGHKWGJRWGJHWG
Step-by-step explanation:
Yo anyone knows the answer to this
Answer:
3
Step-by-step explanation:
(8y-3)+(-8y+6)=
8y + -8y = 0
-3 + 6 = 3
0 + 3 = 3
Solve by Elimination:
x - 2y = 4
X - 1y = 2
its urgent
Answer:
x = 0 and y = -2
Step-by-step explanation:
x - 2y = 4 and X - 1y = 2
you mentioned elemination aka substraction
so you when substract x - x = 0 -2y -( -y) = -y and 4 -2 = 2
so - y = 2
or y = 2
now substitute the numbers
x + 4 = 4
x = 0
and try it with one of the equation or sometimes trying on both of them can be very helpful
What is 4(1 + 9x) ?
Answer:
36x+4
Step-by-step explanation:
4*1+4*9x
What division problem can be represented using the number line?
Carlos and Lily want to know the combined amount of money they made last week. They both made $12 per hour, but Carlos also made a $35 bonus. Carlos says the combined amount is 12C + 35 + 120 where Cis the number of hours he worked, and L is the number of hours Lily worked. Lily says the combined amount is 12(C+ L) + 35. Who is right? Explain.
Answer:
Lily is rightStep-by-step explanation:
Carlos made:
12C + 35Lily made:
12LTogether they made:
12C + 35 + 12L = 12(C + L) + 35Lily is right. We don't know what 120 means in Carlos's equation, he should put 12L for Lily.
There are 4 dogs, 6 cats, a rooster and 8 pigs on a farm. What is the ratio of
pigs to all the other animals?
A.8:11
B.11:8
C.8:10
D.10:8
Answer: A, 8:11
Step-by-step explanation:
4 dogs + 6 cats + 1 rooster = 11
8 pigs
ratio for pigs to other animals : 8:11
8 goes first bc the question was "What is the ratio of
pigs to all the other animals? "
pigs first - other animals second
Name the constant in the expression:
3x + 5
please explain how I can solve problems like this
Define the opposite and the absolute value of -8.
O The opposite of -8 is -8. The absolute value of -8 is 8.
O The opposite of -8 is -8. The absolute value of -8 is -8.
O The opposite of -8 is 8. The absolute value of -8 is 8.
O The opposite of -8 is 8. The absolute value of -8 is -8.
Answer:
The opposite of -8 is 0 and the absolute value in 8
Step-by-step explanation:
Answer:
The opposite of -8 is 8. The absolute value of -8 is 8.
Step-by-step explanation:
1A. Nayeli wants to earn some extra money so she sells lemonade for $2 per cup and orange juice for $3 per cup. She sells a total of 100 cups and earns $240. Later she wants to find the number of cups of lemonade and the number of cups of orange juice she sold. Which system of equations below represents this situation?
1. 2x + 3y = 240 AND x + y = 100
2. 2x + 3y = 100 AND x + y = 240
3. x + 2y = 100 AND 3x + y = 240
4. 2x + 100 = 240.AND x = 3y
1B. In the context of the problem, what does your solution (x,y) mean? Fill in the blanks for the solution sentence below: Nayeli sold ____ cups of lemonade and ____ cups of orange juice. Write your answer in this form: 20, 40
Answer:
1. 2x + 3y = 240 AND x + y = 100
Nayeli sold 60 cups of lemonade and 40 cups of orange juice.
Step-by-step explanation:
Let
Number of cups of lemonade sold = x
Number of cups of orange juice sold = y
The system of equation could be represented by:
2x + 3y = 240 (1)
x + y = 100 (2)
from (2)
x = 100 - y
Substitute into (1)
2x + 3y = 240 (1)
2(100 - y) + 3y = 240
200 - 2y + 3y = 240
- 2y + 3y = 240 - 200
y = 40 cups
Substitute y = 40 into (2)
x + y = 100 (2)
x + 40 = 100
x = 100 - 40
x = 60 cups
Nayeli sold 60 cups of lemonade and 40 cups of orange juice.
(x, y) = (60, 40)
Mental Math A typical tip in a restaurant is 15% of the total bill. If the bill is $110, what would the
typical tip be?
The typical tip would be $0.
Answer:
$16.50
Step-by-step explanation:
15/100*110
15/10*11
3/2*11
33/3
16.50