Answer:circumference if circle =6km
2πr=6
R=3/π km
Step-by-step explanation:
When diameter of circle =`20miles
Circumference of circle =πd=20πmiles.
what's the circumference of a circle is C centimetres. which expression best represents the value of pie?
Answer:
C=2πr
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
For a school fundraiser, Elena made x number of T-shirts. She ordered T-shirts and printed graphics
on them; she spent a total of $1000. She had to buy a printing machine for $350 and paid $5.00
per shirt for the blank shirts, ink, and other supplies. Write an equation to represent this story. If
you get stuck, consider drawing a diagram.
Answer:
y=5x+350
If Elena spent a total of $1000, she made 130 shirts.
Step-by-step explanation:
Let x be the number of T-shirts. Let y be the amount of money spent.
1000=5x+350
5x=650
x=130
Estimate the quotient 488.8 ÷ 48
The temperature at midnight was -12 degrees F. The temperature rose to 28 degrees by noon.
What was the temperature change, t, during this time?
what is the intercept of y if y=2x
Answer:
(0,0)
Step-by-step explanation:
2). Write an equation and solve. You will not be given credit for your answer if you do not include your equation! This month's cell phone bill was for $15.27 more than last month's cell phone bill. If this month's phone bill is for $72.50, how much was last month's cell phone bill?
Answer:
Equation is: x+15.27 = 72.50Solution to that equation: x = 57.23Interpretation: Last month's phone bill was $57.23========================================================
Explanation:
We'll make x the value of last month's phone bill. So if lets say x = 50, this means that last month's phone bill was $50. We don't know yet if x = 50 is the actual solution or not.
We're told that "This month's cell phone bill was for $15.27 more than last month's cell phone bill". This means this month's bill, in terms of x, is x+15.27 dollars. Whatever x is, we add 15.27 onto it getting this month's bill. This works because x is really a placeholder for a number.
Going back to x = 50, that would mean this months bill is x+15.27 = 50+15.27 = 65.27 dollars. We can see that we don't reach 72.50 that we're told the current months bill actually is. Since we don't have a match, this means x = 50 is too small. We can guess and check our way to hopefully land on the answer. However, using algebra is the most efficient method.
----------
The equation we need to solve is: x+15.27 = 72.50
This is because x+15.27 represents this month's bill and so does the 72.50, as your teacher gave in the instructions.
To solve this equation, we'll undo the "plus 15.27" to isolate x fully. The opposite of addition is subtraction. We'll subtract 15.27 from both sides
x+15.27 = 72.50
x+15.27-15.27 = 72.50-15.27
x = 57.23
Last month's phone bill was $57.23
As a check, adding 15.27 onto last month's bill should get us to 72.50
x+15.27 = 57.23+15.27 = 72.50
It works out, so we've confirmed the answer.
A soccer ball is kicked at a velocity of 25 meters per second. The following table shows the horizontal distance (in meters) at different angles of elevation (in degrees), ignoring wind resistance.
Angle of Elevation Distance Traveled
15 31.9
25 48.8
30 55.5
45 63.8
50 62.8
55 59.9
60 55.5
70 41.0
Using a quadratic regression calculator, determine the values of a, b, and c that can be used to write a quadratic function that provides a reasonable fit to the set of data. What is the value of c?
A). 8.5411
B). -8.5411
C). 85.411
D). -85.411
Answer:
-8.5411
Step-by-step explanation:
I just did this with the desmos calculator !
Having trouble please help
Answer:
no real roots
Step-by-step explanation:
Hey There!
If you didn't know you cannot square a negative number to get a negative number
Why? let me give you an example
-4x-4=16 not -16 therefore there are no real roots to a negative number
Which is a scaled copy of Polygon A?Identify a pair of corresponding sides and a pair of corresponding angles. Compare the areas of the scaled copies.
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete as the polygon A (and other possible polygons to select from) are not given. So, I will answer on a general term.
Assume that Polygon A is a rectangle of dimension 2ft by 5ft.
[tex]Length = 2ft[/tex] [tex]Width = 5ft[/tex]
Possible scaled copies can be gotten by multiplying the dimension of A by the same scale factor.
Take for instance, the scale factor k is:
[tex]k = 3[/tex]
A scaled copy of polygon A (say polygon B) is: 6ft by 15ft
This is gotten by:
[tex]Length = 2ft * 3 = 6ft[/tex] [tex]Width = 5ft * 3 = 15ft[/tex]
The area of A is:
[tex]Area = 2ft * 5ft = 10ft^2[/tex]
The area of B is:
[tex]Area = 6ft * 15ft = 90ft^2[/tex]
See attachment for polygons
Comparison
The area of B is greater than the area of B.
This method can be applied to scale factors
Write an equation in slope intercept form from a table?
X. 4. 6. 7. X. 14. 20. 23
9514 1404 393
Answer:
y = 3x + 2
Step-by-step explanation:
Assuming your table values are (x, y) = (4, 14), (6, 20), (7, 23), the slope and intercept formulas can be used.
m = (y2 -y1)/(x2 -x1)
m = (20 -14)/(6 -4) = 6/2 = 3
b = y -mx
b = 14 -3(4) = 2 . . . . for (x, y) = (4, 14)
Then the equation of the line is ...
y = mx + b
y = 3x + 2
What is the answers to 12M+7+M+20
Answer:
13M+27
Step-by-step explanation:
Answer:
13m +27
Step-by-step explanation:
12M+7+M+20
=12M+M+7+20
=13M+7+20
=13M+27
Help plz giving out brianlest and 67 points please help
How long is the wire that supports the tree
10
5.6 ft
3.3 ft-
QUESTION : A family of four went out to dinner. Their bill came to $156.98 and they want to leave a 15% tip. How much the tip will be?
please help!!!!
Answer:
tip = $23.55
Step-by-step explanation:
156.98 x 0.15 = 23.55
please help with this question we are live in class!!!
Answer:
C.
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
The answer is C.
He has 10 lb of oats. He makes 1/4 lb packages.
10 / 1/4 = 40
He can make 40 packets.
Answer: C.
what is the equivalent slope intercept for 5x = 4 + y
Answer: -5
Step-by-step explanation:
Answer:
y = 5x - 4
Step-by-step explanation:
Hiiioo! Can someone please help ❤️❤️❤️
can someone help me please
I will mark you brainliest ❣️
9514 1404 393
Answer:
26. B(t) = 500·1.075^t; B(6) ≈ $772
27. G(t) = 70·0.72^t; G(3) ≈ 26 g
Step-by-step explanation:
The equation with the plus sign is used when the value is increasing. The minus sign is used when the value is decreasing. The 'a' in each equation is the initial value.
__
26. B(t) = 500·1.075^t
B(6) = 771.65
The balance after 6 years is about $772.
__
27. G(t) = 70·0.72^t
G(3) = 26.127
About 26 grams are left after 3 days.
change the voice of do you repair cars
The decimal form of 1/3 is a repeating decimal. Are all the multiples of 1/3 also repeating decimals? Explain.
plz help
Answer:
No.
Step-by-step explanation:
1=3*1/3
2=6*1/3
3=9*1/3
......
Yes, All the multiples of 1/3 also repeating decimals.
What is Division method?
Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.
For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
The decimal form of 1/3 is a repeating decimal.
Now,
Since, The decimal form of 1/3 is a repeating decimal.
As, 1 / 3 = 0.33333...
And, Some of the multiples of 1/3 are;
1 / 3 = 1×2 / 3×2
= 2 / 6
= 0.33333....
And, 1 / 3 = 1×3 / 3×3
= 3 / 9
= 0.33333....
1 / 3 = 1×4 / 3×4
= 4 / 12
= 0.33333....
Thus, Yes, All the multiples of 1/3 also repeating decimals.
Learn more about the divide visit:
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Personal Math Trainer Lesson 6.2 - Homework - Homework
112131415161718
9
10
Gordon types 1,612 words in 26 minutes. Find the unit rate.
Gordon types
words per minute.
Answer:
nothing to do with your question just need points
Step-by-step explanation:
Answer:
62 Words Per Minute
Step-by-step explanation:
Big brain go thinky-think.
Write an equation in slope intercept form from two points (5,5) (3,7)?
Answer:
y= -1x+10 or y= -x+10
Step-by-step explanation:
Hope this helps!
2 × 10^12 red blood cells have a total mass of 90 grams.
Work out the average mass of 1 red blood cell.
Give your answer in standard form.
Answer:
2×10¹² cells → 90 g
mass of 1 red blood cell : 90÷(2×10¹²) = 45×10^-12 g = 4.5×10^-11 g
Which two triangles are congruent by the ASA Theorem? Help with the correct answer please. Thank you! I picked A but that was wrong.
Simplify.
4(3y+2)-11
Answer:
12 y − 3
Step-by-step explanation:
4(3y+2)-11
Expand 4(3y+2): 12y+8
12y+8-11
=12y-3
y= 12x+2
2y = x+4
and the step by step explanation
Answer:
[tex]x=0, y=2[/tex]
Step-by-step explanation:
Below! Credits to WolframAlpha!
If 2 = 6, what is the degree measure of 5?
A. 80
B. 220°
C. 60°
D. 120°
Answer:
60°
Step-by-step explanation:
We know that 2 and 6 = 60 degrees, so we add 60 + 60 which equals 120, now subtract 120 by 180 and you get 60 degrees.
How do I solve this???
Parallel Lines
How do you know two lines are parallel?
Determine if any of the sets of lines are parallel. Justify your answer.
Line a passes through (-2, 4) and (3, 14).
Line b passes through (7, 2) and (-1, 3).
Line c passes through (3, 1) and (0, -5).
Line a: y= -13x+4
Line b: 3x-y=7
Line c: 6x + 2y = 12
Write the equation of the line parallel to x+4y = 6 that passes through the point (4, -8).
How do you know two lines are parallel?:
if the lines were to continue forever they would NEVER EVER touch they would just go STRAIGHT like train tracks
Laura is building a model of a building for her art class. She is using a scale of 2 centimeters represents 8 feet. If the building is 60 feet long, how long will she build her model?
PLEASE SHOW YOUR WORK!!!!
WILL MARK BRAINLIEST!!!
Answer:
15 cm
Step-by-step explanation: