Answer:
C. 0.333
Step-by-step explanation:
It is a ratio. For every 1 added to the x-value, 3 is added to the y-value. So therefore, the constant is 0.333
Answer:
A. 3
Hope this helps :)
45. Real Estate Appreciation Bob Michaels purchased a
house 8 years ago for $42,000. This year it was appraised at
$67,500.
(a) A linear equation V = mt + b, 0
the value V of the house for 15 years after it was pur-
chased. Determine m and b.
(b) Graph the equation and trace to estimate in how many years
after purchase this house will be worth $72,500.
(c) Write and solve an equation algebraically to determine
how many years after purchase this house will be worth
$74,000.
(d) Determine how many years after purchase this house will
be worth $80,250.
19
Answer:
a)
Since t is between 0 and 15, and the house was purchased 8 years ago, we have two pairs of values:
t = 0, V(0) = 42000t = 8, V(8) = 67500Find the slope, m:
m = (67500 - 42000)/8 = 3187.50The value of b is 42000, since at t = 0, V = 42000
So the equation is:
V = 3187.50t + 42000b)
The graph is attached.
When V = 72500, t = 9.6 (approximately)
c)
When V = 74000
74000 = 3187.5t + 420003187.5t = 32000t = 32000/3187.5t ≈ 10 years (rounded down)d)
When V = 80250
80250 = 3187.5t + 420003187.5t = 80250 - 420003187.5t = 38250t = 38250/3187.5t = 12 yearsA farm has fruit trees planted in rows. There are 6 fruit trees in the first row, and each additional row has 3
more fruit trees than the row before it. If there are 18 rows of fruit trees, how many fruit trees are there on
the farm?
O 324
O 426
O 456
O 567
Answer:
567
Step-by-step explanation:
It is going to be arithmetical sequence, a1=6
d=3, n=18
Sn= (2a1+d(n-1))/2*n= (2*6+3*17)/2*18= 63*9=567
The arrangement of fruits trees in the farm is modeled after an arithmetic progression, thus, there are 567 fruit trees in the farm.
What is the number fruit tress in the farm?The number of fruits trees in the farm represents an arithmetic progression as each row of trees in the farm increases by 3 more than the one after it.
The number of trees is calculated using the arithmetic formula as follows:
[tex]S_n = \frac{2a + d(n - 1)}{2}× n[/tex]
where
a = 6, n = 18; d = 3Substituting the values
[tex]S_n = \frac{2 \times 6 + 3(18 - 1)}{2}× 18 = 567[/tex]
Therefore, there are 567 fruit trees in the farm.
Learn more about arithmetic progression at: https://brainly.com/question/6561461
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Given g(x) = -1 – 4, solve for a when g(x) = -4.
Answer:
a = 0
Step-by-step explanation:
given:
[tex]g(x) = -1x - 4[/tex]
solve for a, when:
[tex]g(x) = -4[/tex]
replace x with -4
~~~~~~~~~~~~
➡️ [tex] a = -1(-4) - 4 [/tex]
➡️ [tex] a = 4 - 4[/tex]
➡️ [tex] a = 0 [/tex]
Pls help me I would appreciate it :]
Step-by-step explanation:
3(5)+5÷4
15+5÷4
20÷4
5 Answer
Answer:
16.25
Step-by-step explanation:
Let x = 5. Substitute the value for the variable.
3(5) + 5 ÷ 4
15 + 5 ÷ 4
15 + 1.25
16.25
6K x 1/6
K is just k
6k · 1/6 = 6/6k = k
.......
Step-by-step explanation:
hopefully it is clear and understandable
:)
2x(5-x)+3x^2
shown work please
[tex]\\ \rm\Rrightarrow 2x(5-x)+3x^2[/tex]
[tex]\\ \rm\Rrightarrow 10x-2x^2+3x^2[/tex]
[tex]\\ \rm\Rrightarrow 10x+(-2+3)x^2[/tex]
[tex]\\ \rm\Rrightarrow 10x+x^2[/tex]
[tex]\\ \rm\Rrightarrow x^2+10[/tex]
A $40.00 shirt is on sale for 35% off. How much will I save?
Answer:
You will save $14.00
Step-by-step explanation:
If the shirt is 35% off, it means that you will effectively save 35% of the price. 35% of the price in this case is 35% of 40, which is $14.00
X : X E Z,-5< X < 2 in tabular form would be?
Step-by-step explanation:
X={-4,-3,-2,-1,0,1}
Write integers which are greater than -5 but less than 2.
Note:if you need to ask any question please let me know.
Karabo is training by running for the Comrades Marathon ; he starts his training by running 40km per week . Each week he increases the distance covered by 10km.
(a) Write down the formula to calculate the distance he runs in the n-th week .
(b) Use the formula to calculate the distance he runs in the 12 week of training.
Answer:
a) 40 + 10d where is the distance
b) 160 km
Step-by-step explanation:
→ Substitute 12 into the formula
40 + ( 10 × 12 ) = 160
Can someone please help me on this, I do not understand
Answer:
Think u have to find out what the x means and go from there
I need help please!!
Answer:
16 cm2
Step-by-step explanation:
By equa tion of area of triangle: S = 1/2 * height * base
Triangle B: 32 = 1/2 * 8 * x --> x = 8 (cm)
The base of triangle A is half of the base of triangle B so it is 4 cm.
The area of triangle A = 1/2 * 8 * 4 = 16 (cm2)
1/6d+2/3=1/4=(d−2) what does d=
Answer:
1
6
d
+
2
3
=
1
4
⋅
(
d
−
2
)
Combine
1
6
and
d
.
d
6
+
2
3
=
1
4
⋅
(
d
−
2
)
Simplify
1
4
⋅
(
d
−
2
)
.
Tap for more steps...
d
6
+
2
3
=
d
4
−
1
2
Move all terms containing
d
to the left side of the equation.
Tap for more steps...
−
d
12
+
2
3
=
−
1
2
Move all terms not containing
d
to the right side of the equation.
Tap for more steps...
−
d
12
=
−
7
6
Multiply both sides of the equation by
−
12
.
−
12
⋅
(
−
d
12
)
=
−
12
⋅
(
−
7
6
)
Simplify both sides of the equation.
Tap for more steps...
d
=
14
can any one solve this problem
Answer:
sorry i can't
please mark me as brainlest
How can the graph of f(x) = 1/(- x) - 9 be obtained from the graph of y = 1/x
Answer:
hsjjsjsjjsjjdjjsnnsjsj
Select all the expressions that are equivalent to 3^2 · 3 ^(-6)
Answer:
[tex] {3}^{2} \times {3}^{ - 6} \\ = {3}^{2 + ( - 6)} \\ = {3}^{2 - 6} \\ = {3}^{ - 4} [/tex]
Simplify: 2(a-4)+15=13
Answer:
a = 3
Step-by-step explanation:
2(a−4)+15=132
a−8+15=132
a=13−15+82
a=6
a=6/2
a=3
A simple pulley with the give radius 4 in used to lift heavy objects is positioned 10 feet above ground level. Given that the pully rotates 720 degrees determine the height yo which the object is lifted.
9514 1404 393
Answer:
50.3 inches
Step-by-step explanation:
720 degrees is 2 full turns, or twice the circumference of the pulley. The circumference is given by ...
C = 2πr
C = 2π(4 in) = 8π in
Then 2 times that is ...
height lifted = 2(8π in) = 16π in ≈ 50.3 in
The object was lifted about 50.3 inches.
if f(x) =7x+5/3-x, then show that fof power -1(x) is an identity function
If f(X)= 7x +5/3 - x =6x +5/3
y= 6x +5/3
6x= y-5/3
f^-1(y)=x=(y-5/3)/6
So we can write
f(f^-1(y))= f((y-5/3)/6) = 6 (y-5/3)/6 +5/3= y-5/3+5/3= y
The same result can be obtained for f^-1(f(x))=x
If the function is f(x)= 7x +5/(3-x) then it is not invertible since it is not injective (pictures)
Multiply the numbers. Round the answers to the nearest cent.
21. $4.50 X 30.25
22. $8.30 X 3.25
23. $14.50 X 32.5
Answer:
[tex]21. \: 136.1[/tex]
[tex]22. \: 27.0[/tex]
[tex]23. \: 471.3[/tex]
Remember to add "$" before the number.
A cookie company expanded its standard package of 36 cookies to include 4 extra cookies of a brand new flavor. If all of the cookies from an expanded package were put in a container and one were selected at random, what is the probability that it will be a cookie of the new flavor?
Answer:
1/9 probability
Step-by-step explanation:
The total cookies are 36 and the new flavors are 4, if you simplify 4/36, it equals 1/9
Solve the compound inequality.
3 > 2x or x - 4 > 2
x <
or x >
Answer:
so our x is <
less than
explanation: 3>2x= 1.5<x
x- 4>2 =6<x
How many pumps will it take to fill the giant soccer ball.
the point (-1,0.5) lies on the graph of f^-1(x)=2^x based on this information, which point lies on the graph of f(x)=log2x
Answer:
(-1,0.5)...
the inverse "f^-1" of an exponential function is BY DEFINITION the "Log" function
Step-by-step explanation:
What is 1/2(x+14) because i am having trouble solving it and no calculator has been able to help me also.
Hi there!
»»————- ★ ————-««
I believe your answer is:
[tex]\frac{1}{2}x+7[/tex]
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
[tex]\boxed{\text{Simplifying the equation...}}\\\\\frac{1}{2}(x+14)\\------------\\\rightarrow \frac{1}{2}*x = \frac{1}{2}x\\\\\rightarrow\frac{1}{2}*14=7\\\\\rightarrow \frac{1}{2}(x+14)= \boxed{\frac{1}{2}x+7}[/tex]
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
A number is considered "blue" if the sum of its digits is equal to the product of its digits. Which of the following
is "blue"?
Answer:
gcfcfud g fhhfhchgdjchfhfhgfhhufxyvhcj v hxhcnchchdfhvhdnfjc
Answer:
212205
Step-by-step explanation:
Well each letter is a number of a alaphabet
9 is multiplied by the cube of a number
Answer:
[tex] 9\times {y}^{3} [/tex]
this should be
[tex]9 {y}^{3} [/tex]
The expression for 9 is multiplied by the cube of a number will be 9X³.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that 9 is multiplied by the cube of a number. The expression can be written by assuming that the number is x.
Expression = 9 x Cube of a number
Expression = 9 x ( X )³
Expression = 9X³
Therefore, the expression for 9 multiplied by the cube of a number will be 9X³.
The complete question is given below:-
9 is multiplied by the cube of a number then write an expression for that.
To know more about an expression follow
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Jerimiah records lap times at the track meet on Saturday. He records a time of 85 seconds for Jennifer's lap, but she really completed the lap in 84.25 seconds.
What is the approximate percentage of error in Jerimiah's measure?
Answer:
I'm not sure. What I would do, though, is find the difference of the two times and then find the percentage of that within the original time. So the difference is .75. So the percentage would be .25%. Just an educated guess.
Rachel’s free-throw average for basketball is 60%. How many times do you think she will make a free-throw in her next 50 tries?
Answer:
Rachel will make 30 free-throws!
Step-by-step explanation:
Hello!
I came up with this solution with some easy mental math! If you weren't aware, 60% of 50 is a whole number! Meaning that 60% of 50 is 30. You could even double 50 to make it 100, everyone knows that dealing with percentages with the number 100 make them a whole lot easier!
Back to what I was saying, if you used 100, you would also have to take 60% of 100, which is 60. And then have to divide 60 by 2 because you doubled the 50! Giving you 30 free-throws, which is the correct answer!
Hope this helped! Let me know if you have any further questions! :)
factorisation
[tex] {x}^{3} - x[/tex]
Step-by-step explanation:
x³-x
by taking out common term, we get
x(x²-1)
Now, by using the formula of a²-b², we get
x(x²-1²)
x(x+1)(x-1)
I hope it helped U
stay safe stay happy
Answer:
[tex] {x}^{3} - x = x(x + 1)(x - 1)[/tex]
I hope I helped you^_^
what is 5.08 centameters converted to inchies
Answer:
It's two inches