Answer:
18 sides.
Step-by-step explanation:
The interior and exterior angles sum to 180 so:
I + E = 180
also I - E = 140 (given)
So, adding to eliminate E:
2I = 320
I = 160 degrees and the external angle E = 1809 - 160 = 20 degrees.
Since the sum of all exterior angles in a polygon = 360 degrees
- the number of sides = 360 / 20 = 18.
Write the standard form of the equation of the line through the given point with the given slope.
9) through: (1, 2), slope = 7
Answer:
The equation for this slope will be y=7x-5
Step-by-step explanation:
Hope this helped
Explain, in writing, the steps in graphing and finding the solution to the system of equations.
y = x + 2
y=-x-2
Answer:
Feel free to copy and paste:
Use the slope-intercept form to find the slope and y-intercept. To do this, use y=mx+b. Plug the variables where m=1 and b=2. Slope of the line is m and y-intercept is value of b, so the slope is 1 while the y-intercept is (0,2). Any line can be graphed using two points, and using two x values to plug them into the equation to find the corresponding y values: 0=x+2 is (-2,0). Y-intercept is already known, so use the known values and make a table where x= -2,0 and y = 0,2. Now, graph the line using the slope, y-intercept, and known points (-2,0), (0,-2) to plot the graph. Coincidingly, the answer to solve your system of equations will be the x-intercept: (-2,0).
Gabby buys a new purse for $33. The sales tax in her state is 6%. How much is the sales tax?
Answer:
$1.98
Step-by-step explanation:
$33.00 x 0.06 = $1.98
Patrick drank 3/4 liter of water Monday before jogging. He drank 4/5 liter of water after his jog. How much water did Patrick drink altogether? (Write fraction answers as a mixed number like this 2 1/2) He drank _____ liters. *
Answer: 1¹¹/₂₀ litres
Step-by-step explanation:
The fractions need to be added.
Find a common multiple for them.
Common multiple = 20
Divide the multiple by the denominator of the fraction and multiply the numerator by the result you get:
[tex]= \frac{15 + 16}{20} \\\\= \frac{31}{20} \\\\= 1\frac{11}{20}[/tex]
= 1¹¹/₂₀ litres
In a cookie recipe, for every 2 cups of sugar there are 3 cups of flour. How many cups of flour would you need for 6 cups of sugar?
A rectangle has four sides. Fill in the blanks in the double number-line below.
rectangles
1
2
3
4
8
12
28
sides
Plz help
This right rectangular prism is filled with -foot unit cubes.
What are the actual dimensions of the prism?
How many unit cubes are in this prism?
What is the total volume of the prism, in cubic feet?
Answer:
can you use photo math yes or no?
a) The regular price of a T-shirt is $18. What is the discounted price?
b) If the regular price of an item is x dollars, what is the discount price in dollars?
c) The discounted price of a hat is $18. What is the regular (original) price?
help fast!!!
Answer:
B
Step-by-step explanati
the price of the shirt is $18 and lets say x is the discount . X is the discount cause there wasnt a discount provided. so therefore x is unknown. C is talking about a hat and were talking abot a shirt. so whats left.... B
Answer:
the price of the shirt is $18 and lets say x is the discount . X is the discount cause there wasnt a discount provided. so therefore x is unknown. C is talking about a hat and were talking abot a shirt.
Step-by-step explanation:
When solving systems of equations with the elimination
method or the substitution method, how do you determine if
you have one solution, no solutions or infinite solutions?
Step-by step explanation:
That's a great question. Look for things such as these:
x=x (infinite solution)
x=12 (one solution)
x+3 = x + 5 (no solutions)
https://youtu.be/bq5gDsEdN3Q this video has more information, copy and paste the link into your search engine.
Simplify the expression for the area
Answer:
UHHHHHHHHHHHHH
Step-by-step explanation:
John makes $400 per week. What does it mean for him to get a l50% salary raise. Explain in words and then give and example showing a calculation
Answer:
can some one give the answer
Step-by-step explanation:
pls
PLEASE HELP ME ON SOME OF THESE!!! I AM SO CONFUSED!!
Answer:
4) (2x)(2x)(0.5)=shaded area
5) (7x)(5x)-(3)(4)(0.5)=shaded area
6) (3x+3)(x+4)-(2x)(x+4)(0.5)=shaded area
7) (3x)(2x)-(2x)(x)(0.5)-(x)(x)(0.5)=shaded area
8) (6x)(4x)(0.5)+(10x)(4x)(0.5)=shaded area
9) (4x+2)(x+3)+(2x)(x+3)(0.5)=shaded area
Step-by-step explanation:
Need answers ASAP please and thank you
Answer:
option C
Step-by-step explanation:
Here, we want the first best step
looking at the expression, we can see that if we divided both sides by -2, we will have to answer a regular
Thus, by dividing both sides by -2, then we have the answer
prove 151^3-25^3 is divisible by 126
9514 1404 393
Answer:
151 -25 = 126 is a factor of the difference of those cubes
Step-by-step explanation:
The expression can be factored as ...
a^3 -b^3 = (a -b)(a^2 +ab +b^2)
151^3 -25^3 = (151 -25)(151^2 +151·25 +25^2)
= 126(151^2 +151·25 +25^2)
That is, 126 is a factor of the difference of the given cubes. The difference is divisible by 126.
__
Your calculator tells you 151^3 -25^3 = 126 · 27201.
2x+3y=-6
4x+6y=-12
6x + ay=-18
Answer: -18
Step-by-step explanation: I used a math problem calculator. : /
Maths people please write the answers !
Equations- Maths
Answer:
length = 20cm
breadth = 8cm
Step-by-step explanation:
solution;
length(l) = x + 12
breadth(b) = x
perimeter (p) = 56 cm
we know that,
perimeter(p) = 2(l + b)
or, 56 = 2(x + 12 + x)
or, 56 = 2(2x + 12)
or, 56 = 4x +24
or, 56 - 24 = 4x
or, 32 = 4x
or, 32 / 4 = x
x = 8
now
putting the value of x in length and breadth
length = x+ 12
=8 + 12
=20cm
breadth = 8cm
Answer:
Hope this helps!!!
Step-by-step explanation:
A: x=3
B: x=8
C: x=11
D: x=5
E: x=10
F: x=12
G: x= 10/3
H: x=6
I: x=3.4
IM SCROLLING THROUGH ALL OF THESE FRANTIC PLEAS OF HELP YALL I DONT KNOW ETHER YOUR EQUATIONS ARE MAKING MY EYES WATER
Answer:
What?
Step-by-step explanation:
I don't understand what you're saying.
Stacey worked on her garden for 4 3/4 hours.
Answer:
Number one and number 3 i think
Step-by-step explanation:
ASAP PLEASE: 16 + 11(-2)2 - 25(⅖) =
Answer:
-38
Step-by-step explanation:
Solve the proportion: 5/3 = ?/4
Answer:
20/3
Step-by-step explanation:
5/3=x/4
cross product
3*x=5*4
3x=20
x=20/3
Answer:
20/3 = ?
Step-by-step explanation:
5 ?
---- = ------
3 4
We can solve by cross products
5 * 4 = 3 * ?
20 = 3 ?
Divide each side by 3
20/3 = 3?/3
20/3 = ?
Which of the following expressions are equivalent to -6-(-2)
Pls I need help
Answer:
A) -6+2
Step-by-step explanation:
A scatter plot is made to model the number of calories in different portions of fish sticks. The data used for the scatter plot are shown in the table:
Number of portions 5 3 8 6 1 4
Number of calories 250 150 400 300 50 200
What does the slope of the model represent?
The number of calories in each portion of fish sticks
The number of fish sticks in each portion
The original number of portions of fish sticks
The price of each portion of fish sticks
Solution: A scatter plot is made to model the number of calories in different portions of fish sticks. The data used for the scatter plot are shown in the table below:
Number of portions
5 3 8 6 1 4
Number of calories
250 150 400 300 50 200
What does the slope of the model represent?
Answer: The number of calories in each portion of fish sticks
Answer:
The number of calories in each portion of fish sticks
Step-by-step explanation:
Hope this helps! God bless :)
y=-2/3x-5 slope and y-intercept
Answer:
Slope = 2/3
Y-intercept = -5
Step-by-step explanation:
Since the equation is written in y = mx + b format. The m is the slope and b is the y-intercept. In place of m is 2/3 and in place of b is -5. Therefore, the slope is 2/3 and the y-intercept is -5.
hope this helps!
Maybe brainliest?
The equation of line is y = ( -2/3 )x - 5 , where the slope is m = -2/3 and the y intercept is b = -5
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
y = ( -2/3 )x - 5
Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )
The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
Substituting the values in the equation , we get
Slope m = ( -2/3 )
The y-intercept b = -5
Hence , the equation of line is y = ( -2/3 )x - 5
To learn more about equation of line click :
https://brainly.com/question/14200719
#SPJ2
Mary worked 2 3/4 hours on Monday and 1 1/2 hours on Tuesday. How many hours did she work in all on Monday and Tuesday?
4 and 1/4
Step-by-step explanation:
okay uh you turn the half into 2 fourths and add to get 3 5/4 then simplify and get 4 1/4
A recipe for 24 cookies calls for 6 tablespoons of sugar. If you make 36 cookies and use 10 tablespoons, will the cookies taste the same? Explain and show your work for evidence.
Answer:
yes it will you are you're fine only multiplying how much is going into the cookie and not what you're putting into the cookie like you're not putting a different flavor into the cookie
HELP WITH THIS ITS URGET
3. The average of two numbers is 55. If their positive difference is 64, then determine the two numbers algebraically.
Answer:
the numbers are 41 and 23
Step-by-step explanation:
Given data
let the numbers be x and y
x+y/2= 55
cross multiply
x+y= 110----------1
positive difference is 64
x-y= 64-----------2
solve 1 and 2
x+y= 110
x-y= 64
from 1
x= 110-y
put the value of x in 2
110-y-y=64
110-2y=64
110-64=2y
46=2y
y= 46/2
y=23
put y= 23 in 2
x-23= 64
x= 64-23
x=41
Will give Brainliest!!!
What is the y=mx+b of the equation 5x+2y=−8?
Answer:
y = - 5/2x - 4
Step-by-step explanation:
so yeah oofofofofof
HELP
What is the Constant of proportionality? I don't know if its 2 or 2.5 because 3 and 7 meet but so do 1 and 2
A cleaning product sells for $0.75 a quart. Which equation can be used to solve for the total cost, C , of five gallons of the product? A: C = $0.75 × 4 + 5 B: C = 5 × ($0.75 × 4) C: C = ($0.75 + 4) × 5 D: C = ($0.75 × 5) + 4
Answer: b. C = 5 × ($0.75 × 4)
Step-by-step explanation:
Note that 4 quarts = 1 gallon
Therefore, if a cleaning product sells for $0.75 a quart, the equation can be used to solve for the total cost, C , of five gallons of the product will be:
= 5 × ($0.75 × 4)
= 5 × $3
= $15