Answer:
B
Step-by-step explanation:
First take 12.52 and subtract 11.54 to find the amount it had decreased. (.98)
After that, divide it by 4 (because it increased by .98 over 4 years) and you get .245 a year.
and sense your starting value was 11.54 the +11.54 also checks out
Gage Millar, algebra 2 tutor.
The function modeling the given situation of retail price of electricity in cents per kilowatt hour, x years after 2010 is: Option C. [tex]f(x) = 0.245x + 11.54[/tex] (in cents/kilowatt hour)
How to form mathematical expression from the given description?You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.
Since the problem asks us to find the cost of electricity x years after 2010, thus, the increasing rate will add up itself x times and this addition will then be added to the price which is getting increased, which is 2010's price.
(since 2011's price = price of 2010 + constant increment,
2012's price = price of 2010 + twice of constant increment, and so on for further years)
Thus, f(x) = increment per year times x + price in 2010
Now assuming that increment in price per year is constant, we see:
Increment per year in electricity price= (price in 2014 - price in 2010)/4
Increment per year in electricity price = (0.98)/4 = 0.245 cents per year
Thus, we get:
[tex]f(x) = 0.245x + 11.54[/tex] as the price of the electricity in cents per kilowatt hour after x years from 2010.
Learn more about forming equations here:
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The price of a toy usually costing £50 is increased to £65. Work out the percentage increase.
Unfortunately the answer doesn't seem obvious to me. If i could have the answer as quickly as possible it would be very helpful. Thank you
Answer:
115%
Step-by-step explanation:
115% percent increase in usual value, I may guess see other answrrs too
Answer:
30%
Step-by-step explanation:
The percentage increase is calculated as
[tex]\frac{increase}{original}[/tex] × 100%
increase = £65 - £50 = £15 , then
percent increase = [tex]\frac{15}{50}[/tex] × 100% = 15 × 2% = 30%
Estimate 6,789 as a single digit times a power of ten. Estimate 6,789 as a single digit times a power of ten.
Answer:
7 x 10³
Step-by-step explanation:
the above answer would be 6,789 estimated to the nearest thousand
Which expressions have exactly two factors? Choose ALL that apply.
A) a+ 7
B)4•n•n
C)3(b-1)
D)xy
E)m•m+8
F)2•2•2•2•2
Answer: The answer is F.
Step-by-step explanation: It’s F because the number would be multiplied equally because all of the number are multiplied by 2. The rest of them either have variables or variables with numbers in them, which looks kind of funky, so F is the answer. I hope you get it right :). Sorry, if I was late for the reply and if you already figured it out… :(.
true or false? A subtraction expression with a positive integer and a negative can have a difference of zero
Answer:
False
Step-by-step explanation:
Subtracting a negative integer is equivalent to adding a positive integer. So adding a positive integer to a positive integer can never be zero.
If the height of a small box is 20cm, find two different pair of values which the company can use for the length and width of a small box.
Ill give brainly
Answer:
Step-by-step explanation:
Plot the ordered pairs from the table.
The ordered pair is plotted in the graph attached in the solution.
Given that Timony has three friends, the table shows the time taken by him to reach at his friends place and the distance of the homes of each of his friend.
We need to plot the ordered pair formed by the time and distance on the graph,
The ordered pair are:
(5, 10)
(11, 15)
(18, 20)
Plot the ordered pairs on the graph according to the given values:
The first ordered pair is (5, 10). This means that Timony took 5 units of time to reach a friend's place that is located 10 units of distance away. Mark this point on the graph.The second ordered pair is (11, 15). Timony took 11 units of time to reach a friend's place that is located 15 units of distance away. Mark this point on the graph.The third ordered pair is (18, 20). Timony took 18 units of time to reach a friend's place that is located 20 units of distance away. Mark this point on the graph.Hence the ordered pair is plotted.
Learn more about ordered pair click;
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solve x^2+6x+1=0 and give your answer to two decimal places
Solve for x.
8 ≤ x - (-14)
[tex]8 \leqslant x - ( - 14) \\ 8 \leqslant x + 14 \\ 8 - 14 \leqslant x + 14 - 14 \\ - 6 \leqslant x \\ x \geqslant - 6[/tex]
I hope I helped you ^_^
Classify each number below as a rational number or an irrational number.
Answer:
1. not
2.yes
3.yes?
4.yes?
5.no
Step-by-step explanation:
i put question marks by ones im not posivie about
Your baseball team is selling bags of popcorn to raise money for a trip. For each bag of popcorn you sell, $5 go.
to earn at least $125 for the trip. Write and solve an inequality that represents the numbers x of bags of popcorn you must sell to reach your
goal
An inequality is:
125x>5
5x > 125
5x> 125
5x< 125
You must sell at least
bags of popcorn to reach your goal.
Answer: [tex]5x \geq 125[/tex]
You need at least 125$ so it would be 5x is larger or equal to 125
When solving for x divide both sides by 5
125 / 5 = 25
x = 25
Evaluate using suitable identity:
b). 51²
Step-by-step explanation:
please mark me as brainlest
Answer:
★ Solution :-[tex]\sf \longmapsto 51^2[/tex]
[tex]\sf \longmapsto (a + b)^2 = a^2 + 2ab + b^2[/tex]
Here,
a = 50b = 1[tex]\sf \longmapsto (50 + 1)^2 = 50^2 + 2(50)(1) + 1^2[/tex]
[tex]\sf \longmapsto 50^2 + 2(50)(1) + 1^2[/tex]
[tex]\sf \longmapsto 2500 + 100 + 1[/tex]
[tex]\sf \longmapsto 2601[/tex]
Hence,solved.
If the pic is in focus pls help
5x²+6x+2
please mark BRAINLIEST if right.
Answer:
option 3
Step-by-step explanation:
i cant do exponents on a computer but the 5X2+6x+2 :)
The length of one of the equal sides of an isosceles triangle is 4 cm. If its base is 2 cm, then what is its area?
Answer:
A = 1/2bh
b = 2cm
h will be found using the side of the triangle with Pythagoras theorem
h² + 1² = 4²
h² = 15
h = √15 cm
then,
A = 2*√15
2
A = √15cm²
write 25 * 10^6 in standard form
What is the product of 3 and a4+4a3+7a+9
Answer:
7x^{4} - 56x^{3} + 35x^{2} + 28x - 42
Step-by-step explanation:
I hope is still help.
3.687 times n equals 36.87
Answer:
n is 10 if that's what your asking
Answer:
n=10
Step-by-step explanation:
if you multiply 3.687 by ten, it carries the decimal place over making 36.87, so ten is the answer
What is the slope of (-6,7), (0,3)
Answer:
-2/3
Step-by-step explanation:
To find the slope, we use the formula
m = ( y2-y1)/(x2-x1)
= ( 3 -7)/( 0 - -6)
= (3-7)/(0+6)
= -4/6
= -2/3
Answer:
m = -2/3
Step-by-step explanation:
Here, we need to find the slope .
To find slope we are using slope formula .
Slope Formula, m = ( y² - y¹ ) / ( x² - x¹ )
Where, we have given
x¹ = -6 and x² = 0y¹ = 7 and y² = 3Now putting the given values in the formula.
Slope , m = ( 3 - 7 ) / ( 0 - (-6 ) )
m = ( -4 ) / ( 6 )Divide by 2.
m = -2 / 3Therefore, Your answer is -2/3.
plz help me find the measure of each angle indicated. then state the type of angle pair
please help me
in the second box there are three answers less than greater than or exactly
Answer:
100
Step-by-step explanation:
Needs total of $1,800.00 to save $1,600.00 +$200.00 (car payment).
$1,800/$18.00= 100 hours
Write the prime factorization of 9. Use exponents when appropriate and order the factors from least to greatest (for example, 2235).
Answer:
3 times 3 or 3²
Step-by-step explanation:
Answer:3x3 or you could do 3 over 2
Step-by-step explanation:
Simplify as far as possible.
7
√
5
−
3
√
5
Answer:
4√5
Step-by-step explanation:
if im washing 4 trucks how many cars do i wash
Answer:
Zero
Step-by-step explanation:
If you are not considering a truck being a car, then you wash 0 cars
Identify the pair of supplementary angles.
*71, 29
*65 ,115
*130 , 40
*35 , 55
please answer fastt
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We know that, the sum of measures of supplementary angles is 180°
So, the Correct choice is :
65° and 115°because, 65° + 115° = 180°
Please answer ASAP Brainlest to best answer PLEASE (HURRY DUE TODAY)
A scuba diver descends in the water at a rate of 1 8/12 feet per minute for 3.1 minutes. He immediately changes course when he sees a large fish and ascends at a rate of 22 feet per minute for 2 minutes.
What is the scuba diver's position relative to sea level after the 5.1 minutes?
Enter your answer as a decimal
Please!
Answer:
-13.35
Step-by-step explanation:
i hopr its right
Help with this, thanks!!
Answer:
Option AStep-by-step explanation:
The graph is in the first quadrant and is decreasing.
The a is positive as the graph is above the x- axis.The b is negative as the graph is decreasing.Correct choice is A
Type a digit that makes this statement true.
20,604,70_
is divisible by 6
Answer:
2
Step-by-step explanation:
May I please receive help?
Please?
Step-by-step explanation:
I dont know if they are perpendiculars. but i do know that they are NOT parallel, because they touch and parallels Cant do that
There are 12 finalists in a singing competition. The top four singers receive prizes. How many ways can the singers finish first through fourth?
Answer:665,280
Step-by-step explanation:
Formula for Permutations,
3 / 5 × 7 / 12 ÷ 2 7 / 10
Answer:
7/54
Step-by-step explanation:
I think the answer is C not 100% correct
Answer:
Yeah you are right. None of the other options make much sense and this is a function.
Step-by-step explanation: