Answer:
180-144.5= 35.5
Explanation:
Supplementary means two angles add up to 180 degrees.
so 180-144.5= 35.5
Hope it helps you.
The function y = 5.45 + 1.05(x + 7) can be used to determine the cost in dollars for a prepaid cell phone plan of x minutes. What is the rate of change of the cost, in dollars, with respect to the number of minutes purchased?
Answer:
1.05
Step-by-step explanation:
The rate of change of the cost, in dollars, with respect to the number of minutes purchased is 1.05 and this can be determined by differentiating the given function.
Given :
Function -- y = 5.45 + 1.05(x + 7)'y' is the cost in dollars for a prepaid cell phone plan of 'x' minutes.In order to determine the rate of change of the cost, in dollars, with respect to the number of minutes purchased, differentiate the given function with respect to 'x'.
y = 5.45 + 1.05(x + 7)
y = 5.45 + 1.05x + 7.35
y = 12.8 + 1.05x
Now, differentiate the above equation with respect to 'x'.
[tex]\dfrac{dy}{dx} = 0 + 1.05[/tex]
So, the rate of change of the cost, in dollars, with respect to the number of minutes purchased is 1.05.
For more information, refer to the link given below:
https://brainly.com/question/21835898
is 9/11 equivalent or greater to 9/13
Answer:
9/11 is greater than 9/13 :)
If £25 = 400 rubles, how many £ are in 560 rubles
What numbers complete this equation?
Answer:
5 and 10
Step-by-step explanation:
The area of the school's lake is 7,539.14 m².
1. What is the radius of the lake?
2. What is the diameter of the lake?
3. What is the circumference of the lake?
which of the following is the factored from of the expression 18 + 12?
Answer:
3(6+4)
Step-by-step explanation:
Can somebody plz help me plz!!! ASAP
20 points
Answer:
[tex]D. \ \ \frac{-1}{2x(x-2)}[/tex]
Step-by-step explanation:
[tex]\frac{-1}{2x^2-4x}[/tex]
Taking 2x common from denominator
[tex]\frac{-1}{2x(x-2) }[/tex]
Please answer whoever answer correct gets a brainlest Which character trait of Kim’s does the narration revel in this passage
Answer:
She is determined
Step-by-step explanation:
Answer:
Determined
Step-by-step explanation:
In angle PQR, PR is extended through point R to point S, mPQR = (3x + 12),
mRPQ = (3x – 11)', and mQRS = (8x – 9)°. What is the value of x?
PLEASE HELP I WILL MARK BRAINLIEST
Answer:
m∠QRS =(10x−12)∘(10x−12) = (10(4.7) - 12) (10(4.7) - 12) = (35) (35) = 1225
Step-by-step explanation:
Celso's house is on the market for $220,000. Last year is was on the market for $240,000 but didn't sell. What is the percent decrease in the price of his house
Answer:
91.66666666666667
Step-by-step explanation:
240,000/100 = 220,000/x
220,000 x 100 = 22,000,000
22,000,000 divided by 240,000 = 91.66666666666667
Answer:
This type of problem requires you to calculate the Percentage decrease
Step-by-step explanation:
Formula: Percentage Decrease=
Starting Value minus Final Value / Starting Value x 100
240,000 - 220,000 = 20,000
so 20,000/240,000 = 0.0833333333
so 0.0833333333 x 100 =8.33333333%
ans. 8.33333333% decrease in the price of the house.
What is the slope formula?
A. 12 -
12 -
B.
12 + x1
J2mX
*2-1
o
D.
* 2 - *
SUBMIT
Answer:
C
Step-by-step explanation:
Answer:
[tex]\frac{y2-y1}{x2-x1}[/tex]
Step-by-step explanation:
The slope is always y2 - y1 over x2-x1 or the other way around just make sure to keep it consisitent as in y1-y2 over x1-x2
how do I solve this question in Geometry
Answer:
75°
Step-by-step explanation:
Δ on left is 60-80-40°
Δ on right is 30-75-75°
the ∡ with the question mark has to be 75° also since it is vertical with the angle opposite it, which is also 75°
Functions need fast 7th grade
PLEASEEEEEE HELPPPPPP MEEEEEE
Answer:
I suggest looking at my attachment. This will help with your question and answers to future assignments in your class.
Step-by-step explanation:
Hope this helps! Please vote me as Brainliest. Let me know if you need more of an explanation. Remember, cheating is never the answer. Try your best before you seek answers. Hope it's not too late. Good luck with whatever you are doing! Have an amazing day!
Read this article:
please help will mark brainliest
Answer: 10.5/6 - 6.5/6 = 2/3
Step-by-step explanation:
The answer is 10.5/6 - 6.5/6 = 2/3
Solve: 56(-56+57m)+ 45m
Answer:
I just solved this as well and I got 102m as well.
Step-by-step explanation:
56 and -56 cancek eachother out. 57m + 45m can be added since they have the same variable. 57 + 45 is 102. So the answer is 102m.
Answer:
102
Step-by-step explanation:
There were 200 baseball cards in the box.adam wanted to sell 15 percent of them. how many cards did he want to sell
Answer:
30
Step-by-step explanation:
HELP PLEASE!!! (Look at the picture)
In the right triangle shown, what is the value of PQ?
P 17 cm
Q 15 cm
A. 2 cm
B. 4 cm
С. 8 cm
D. 16 cm
What is the DOMAIN of this relation? Write your answer.
Answer: Domain = {-4, -1, 0, 2, 7, 8, 13}
The domain is the set of allowed x inputs. So all we do is list the set of x values in the top row of the table.
In contrast, the range is the set of possible y outputs. So the range would be {5,2,-3,7,4,9}. Any duplicate items in the range are tossed out. Optionally you can order the set from smallest to largest, but that's not required. This is because order in a set doesn't matter.
Find the value each expression
(-22)(-5)
Answer:
111
Step-by-step explanation:
simplify 3x+7>x+2
[tex]simplify \: \: 3x + 7 \geqslant x + 2[/tex]
Answer:
x ≥[tex]\frac{-5}{2}[/tex]
Step-by-step explanation:
step(i):-
Given inequality
3x + 7 ≥ x +2
subtracting '2' on both sides, we get
⇒ 3x + 7 -2 ≥ x+2-2
⇒ 3 x + 5 ≥ x
subtracting 'x' on both sides, we get
3x +5 -x≥ x-x
⇒ 3x +5 -x ≥ 0
⇒ 2 x + 5≥ 0
Step(ii):-
subtracting '5' on both sides ,we get
2 x + 5 -5 ≥ 0-5
⇒ 2 x ≥ -5
⇒ [tex]\frac{2}{2} x\geq \frac{-5}{2}[/tex]
Final answer:-
⇒ x ≥[tex]\frac{-5}{2}[/tex]
Tell whether the ratios 6/15 and 4/10 are proportional.
Answer:
6/15 is and 4/10 is not I'm pretty sure
Can someone help me plz I will give the brainliest I promise
Answer:
He should play Pacman instead
Would you measure a person with a yard stick or ruler
Answer:
yard stick.
Step-by-step explanation:
Answer:
Yardstick: A tool that is 36 inches long. It shows one yard, or three feet. It usually has inches on one side, and centimeters on the other side.
Step-by-step explanation:
What is the vertex of the equation y = (x - 3)2 + 7?
Answer:
(3,7)
Step-by-step explanation:
Carbon-14 tests are often performed to determine the age of an organism that died a long time ago. Carbon-14 has a half-life of 5730 years. If a turtle shell is found and tested to have 65% of its original carbon-14, how old is it
Answer:
2006 years old.
Step-by-step explanation:
If it had 50% of its carbon-14 it would be 5730 years old.
Since it has 65% left it is younger than 5730 years.
So it is (1 - 0.65) * 5730
= 2005.5 years old.
Who ever solves this is supa big brain: Which table has a constant of proportionality between y and x of 1.51?
PLS HELP
Answer:
Table C
Step-by-step explanation:
Divide each y value by the corresponding x value for all given ordered pairs. All 3 divisions for each table must equal 1.5.
Start with Table A:
A:
7.5/5 = 1.5 Yes
19.5/ 13 = 1.5 Yes
33/23 = 1.4347... No
Move on to Table B:
B:
9.5/8 = 1.1875 No
Move on to Table C:
C:
12/8 = 1.5 Yes
19.5/13 = 1.5 Yes
27/18 = 1.5 Yes
Answer: Table C
9 cows can eat all the grass in a field in 21 days. How many days would it take for 3 cows?
Answer:
63 days
Step-by-step explanation:
There are seven days would it take for 3 cows.
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
Let the required number of days would be x
We have to determine the number of days would it take for 3 cows
As per the given situation, we can write the proportion would be as:
9 cows : 21 days = 3 cows : x days
9/21 = 3/x
Apply the cross-multiplication operation,
9x = 21 × 3
9x = 63
x = 63/9
Apply the division operation, and wet
x = 7
Therefore, the required number of days would be 7 days.
Learn more about the proportion here:
brainly.com/question/1504221
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What is the first step to solve the following equation: 12x-37= 23
Add 37 to both sides
Step-by-step explanation:
Answer:
The first step is to add 37 to both sides of the equation. i.e. grouping like terms.
12x - 37 = 23
12x - 37 + 37 = 23 + 37
12x - 0 = 60
12x = 60
To go on from there, you divide both sides by 12, i.e. removing common factors:
12x = 60
12x ÷ 12 = 60 ÷ 12
x = 5
pls answer all questions
x - 3 = 11
2x = 10
x4=10
x + 6 = 15
3x = 15
7 = x - 6
x - 5 = -7
x6 = -12
x - 7 = -17
-4 + x = 9
-7 + x = -10
-x = 11
7x = 0
12x = 7
x3= -5
Answer:
X=14 , 5 , 2.5 , 9 , 5 , 15 , -2 ,-2 ,-10 , 13 ,- 3 , -11 , 0 , 0.5833..., -1.666....
