Answers
Answer:
#1: 146 degrees #2: 111 degrees
Step-by-step explanation:
The angles of a heptagon (a shape with 7 sides) are supposed to add up to 900 degrees, so just add up all the sides that you know and subtract it from 900 and you will have x! Do the same thing with the second one, except is is a hexagon and all the angles should add up to 720 degrees. (Don't forget to add the right angle, which is 90 degrees) So add up all the sides you know and subtract from 720 to get x.
P.S. If correct, please give Brainliest?
Answer:
N = number of sides
The sum of the interior angles of a polygon is equal to (N x 180)-360.
The first problem has 7 sides so the interior angle total = 900 degrees.
Add up all the known interior angles:
96+105+161+123+155+114+x = 900
x = 900-754 = 146 degrees
The second problem has 6 sides so the interior angle total = 720 degrees.
Add up all the known interior angles:
127+40+202+90+150+x = 720
x = 720-609 = 111 degrees
Related Questions
Find a slope of each line (each block is one unit):
Answers
Answer:
The slope is -3
Step-by-step explanation:
We have two points
( -1,2) and (1,-4)
We can use the slope formula
m = ( y2-y1)/(x2-x1)
= ( -4 -2)/ ( 1 - -1)
= ( -4-2)/ (1+1)
= -6/2
= -3
Question:
What are the solutions to 3x^2 + 12x + 6 = 0?
Hint::
use the quadratic formula
Answers
Answer:
x₁ = - 2 + √2 , x₂ = - 2 - √2Step-by-step explanation:
[tex]3x^2 + 12x + 6 = 0\\\\a=3\,,\ b=12\,,\ c=6\\\\\\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\ x=\dfrac{-12\pm\sqrt{12^2-4\cdot3\cdot6}}{2\cdot3}=\dfrac{-12\pm\sqrt{144-72}}{2\cdot3}=\dfrac{-12\pm\sqrt{72}}{2\cdot3}=\dfrac{-12\pm6\sqrt{2}}{6}\\\\x_1=\dfrac{6(-2+\sqrt{2})}{6}=-2+\sqrt2\\\\x_2=\dfrac{6(-2-\sqrt{2})}{6}=-2-\sqrt2[/tex]
Please help
The figure
Answers
pentagonal prism
hope it helps you
Answer:
the last one
Step-by-step explanation:
because they are given their names based on their bases
4.) A radio station tower was built in two sections. From a point 87 feet from the base of the tower, the angle of elevation of the top of the first section is 25°, and the angle of elevation of the top of the second section is 400. To the nearest foot, what is the height of the top section of the tower? (LT. 3.7 & 3.8)
(This is Trigonometry)
Answers
tan40°=x/87, x = 63.209.
subtract 63.209-36.0366=27.1724~27 ft.
I don't know I need help.
Which of the following numbers can be expressed as repeating decimals?
3 over 7, 2 over 5, 3 over 4, 2 over 9
2 over 9 and 3 over 4
3 over 7 and 2 over 5
2 over 5 and 3 over 4
3 over 7 and 2 over 9
Answers
Answer:
2/9 = 0.2 repeating
3/7 = 0.428571 repeating
Step-by-step explanation:
find the sum −10t−7−10t−7
Answers
Answer:
-20t-14
Step-by-step explanation:
-10t-10t= -20t
-7-7= -14
solve 256^(x+2)=16^(3x-1)
x=
Answers
Hope this helps
Jaxon invested $960 in an account paying an interest rate of 6.1% compounded monthly. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $1,720
Answers
Answer: 10 years
Step-by-step explanation:
1720=960(1+0.061/12)
Triangle WXY is similar to triangle RST.
AA.
Which transformations could transform triangle WXY into triangle RST to show that they are similar?
Reflect across line PQ, then dilate with a scale factor greater than 1.
Reflect across line PQ, then dilate with a scale factor greater than 0 and less than 1.
Rotate 90 degrees counterclockwise about point P, then dilate with a scale factor greater than 1.
Rotate 180 degrees clockwise about point P, then dilate with a scale factor greater than 0 and less than 1.
Answers
Answer:
Reflect across the line PQ, then dilate with a scale factor greater than zero in less than one
Step-by-step explanation:
Answer:
Reflect across line PQ, then dilate with a scale factor greater than 0 and less than 1.
B
Step-by-step explanation:
Please help me, I am unsure how to do this
Answers
Answer:
-1/4
Step-by-step explanation:
Step by step: The equation for finding a slope is y2 -y1 /X2 - X1 and by x and y it means the coordinates so just pick a random two pair of coordinates and use that equation and if u chose (-1,4) and (1,-4) it will be -4-4/1- -1 which is -4. This works for any 2 coordinates. Sorry if that makes no sense lol
Write as a fraction greater than one. (an improper fraction)
HURRY PLZZZZZZZZZZZZZZZ. ill mark brailyist thingy
Answers
Answer:
13/3
Step-by-step explanation:
The formula to calculate that is 4*3+1=12+1=13/3 so the answer is 13/3.
Answer:
13/3
Step-by-step explanation:
(4x3+1)/3
=(12+1)/3
=13/3
PLEASE HELP ME!
Answer in as much detail as needed please! Im giving 15 points for the best one!
Answers
Step-by-step explanation:
The answer is 220in^2 and hope it's useful and helpful to you.
Calculate the simple interest on $ 6400 at 10% p.a. for 9 months.
Answers
Please help I only have 1 hour left .
Answers
Answer:
c
Step-by-step explanation:
how do you solve 0.4m(40m-20n)
Answers
Answer:
= 16m2o−8mno
Step-by-step explanation:
Can someone help? Correct answer gets brainliest!
Answers
Answer:x= 8
Step-by-step explanation:11-3=8. 8+3=11
make m the subject of the formula in 3-mx/2+2y=p/q
Answers
It means we want to isolate m so...
mx/2+2y=p/q
mx/2=p/q-2y
mx=2p/q-4y
m=(2p/q-4y)/x
Hope this helped if you have any more questions ask it in questions.
a deli made $320000 in revenue last year. Due to increased popularity of deli, the owner predicts that revenue will increase by 23% next year. How much revenue does the owner think the deli will generate next year?
Answers
What is the input value for which f(x)=3?
Answers
Answer:
According to the graph −3 is the point (5,−3)left parenthesis, 5, comma, minus, 3, right parenthesis. In other words, f(5)=−3f, Therefore, the answer x=5
Hope this help
which of this numbers should go inside the box to make the equation true blank plus 4 over 2 equals 10
Answers
Given:
The expression is
[tex]\dfrac{\_\_\_+4}{2}=10[/tex]
To find:
The number of the blank.
Solution:
Let x be the missing number for the blank. Then,
[tex]\dfrac{x+4}{2}=10[/tex]
Multiply both sides by 2.
[tex]x+4=20[/tex]
Subtract 4 from both sides.
[tex]x=20-4[/tex]
[tex]x=16[/tex]
Therefore, the missing number for the blank is 16.
on monday, johnny had $30 in his lunch account. On Friday, he had $15 in his account.
Answers
Answer:
Im a little confused as to what the question is
Step-by-step explanation:
I believe that maybe your question was, "how much money is the lunches at the school?" if so.. I can help.
If he spent $15 for 5 days, and we are assuming he had lunch every day....
$15 divided by 5 equals $3.
The school lunches are $3.
3x(2ab - b) - 2y(2a - b)
please i need help!!
Answers
Answer:
6abx-3bx-4ay+2by
Step-by-step explanation:
Answer:
The answer is 6xab - 3xb - 4ya + 2yb
Step-by-step explanation:
Factor the polynomial.
~Hoped this helped~
A basket holds n apples. You pick (2n − 3) apples, and your friend picks (n + 4) apples.
How many baskets would you need if you collected 10 apples with your friend?
Answers
Answer:The equation would be 3n+1 apples.
Step-by-step explanation:
What is the approximate volume of a cone with height of 6 mm and a radius of 18 mm use 3.14 to approximate pi and express your final answer to the nearest hundredth
Answers
Answer: 2034.72
Step-by-step explanation: i got 100% on the quizz and it is correct.
HELP ME PLSS!!
Oliver, Lily, and Ella are hoping to save money. Oliver thinks saving money in a shoe box in his closet every month is a good idea. He decides to start with $150, and then save $75 each month. Lily was given $4000 from her Great Uncle Merv, and decides to put the money into an account that has a 7% interest rate that is compounded annually. Ella has earned $4500 working at the gas station and decides to put her money in the bank in an account that has a 7.5% interest rate that is compounded continuously.
the question is Describe the type of equation that models Ella’s situation. Create that equation of Ella’s situation. Using the equation you created, how much money will be in Ella’s account after 2 years? 10 years?
Answers
You'd first have to divide the first to, then add an divide your sume by the percent to get your answer.
Answer:
Step-by-step explanation:
Use formulaic methods. Since she has interest on her money, we have to include it:
i = log(x-4*7)^k
i is the interested amount, x is the variable we use, and k is the number of times. 7 is the interest
i = log(4000-4x7)^2 for 4000 at 7% interest over 2 years
i = log(4000-4x7)^10 for 4000 at 7% interest over 10 years
Amount after 2 years: $30,000
Amount after 10 years: $15,671
Evaluate expression: 3(5g + 5 - 2)
Answers
Answer: 15g + 9
Step-by-step explanation: Have a brilliant day!- Lily ^_^ Plz mark brainliest.
If $18\sqrt 8-8\sqrt{18}=\sqrt n, what is n?
Answers
Answer:
288 trust me it is 100% right I tried it as an answer an got it right.
Step-by-step explanation:
Answer:
288
Step-by-step explanation:
From the first two parts of the problem, we have
18√8 - 8√18 = 36√2 - 24√2
= (36 - 24)√2
= 12√2.
Thus, we wish to solve for n in the equation 12√2 = √n. In other words, we want to know what number 12√2 is the square root of. Any nonnegative number is the square root of its own square, so
n = (12√2)²
= 12²(√2)²
= 144 ∙ 2
= 288.
What is the reciprocal of 3 2/3
Answers
Answer:
the answer is 5
Step-by-step explanation:
Answer:
0.27272727272 is the reciproval of 3 2/3
A light bulb manufacturer claims that the lifetime of the bulbs is normally distributed with a mean of 5000 hours and a standard deviation of 250 hours. If 20000 bulbs are produced on a particular day, what percentage of the bulbs will have a lifetime of between 4750 and 5500 hours?
Answers
Answer:
88
Step-by-step explanation:
6/54-x = 5/x
x=____
Answers
Answer:
x=−44/9
Step-by-step explanation:
6/54−x=5/xx
Simplifies to:
−x+1/9=5
Let's solve your equation step-by-step.
−x+1/9=5
Step 1: Subtract 1/9 from both sides.
−x+1/9−1/9=5−1/9
−x=44/9
Step 2: Divide both sides by -1.
−x/−1=44/9/−1
x=−44/9