Answer:
x^2 + y^2 = 64
Step-by-step explanation:
EDGE 2020
The equation that represents the rectangular form of r = 8 is x² + y² = 64
What is rectangular form?Rectangular form, is where a complex number is denoted by its respective horizontal and vertical components.
According to the given problem,
x=rcosθ
y=rsinθ
substituting we have
x=8cosθ
y=8sinθ
Squaring and adding we obtain the
circle's origin centered equation,
x² + y² = 64
Hence, we can conclude, the equation x² + y² = 64, represents the rectangular form of r = 8.
Learn more about rectangular form here:
https://brainly.com/question/11740879
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Why does warm water rise to the top of the ocean currents?
Answer:
In the ocean, warmer water expands just like any other matter, and following the principle of density, it rises to the top of the ocean. The cooler water, which is more dense than the warm water, sinks to the bottom and takes up the space left by the rising warm water. The result is a convection current.
Step-by-step explanation:
hope this helps :)
Answer:
because of climat change
Step-by-step explanation:
Determine how much time
required for an investment
to double in value if the
interest is earned at a rate
of 6.56%, compounded
Quarterly? Pick Best answer
Answer: 11 years
Step-by-step explanation:
You can use the Rule of 72 which is a way to calculate quickly, the time it will take for an investment to double given its interest rate.
It works by:
= 72 / Interest rate
Rate is compounded quarterly so the periodic rate is:
= 6.56%/4
= 1.64%
Time taken to double = 72/1.64
= 43.9 quarters
In years that is:
= 43.9/4
= 11 years
For an investment to double in value at an interest rate of 6.56% compounded quarterly, the period required is exactly 10.625 years.
What is an investment's future value?The future value of an investment refers to the compounded value of its present cash flows in the future, using a stated interest rate.
The future value can be determined using the future value table or formula.
We can also determine the future value using an online finance calculator, which also enables us to determine the period required to double the present value of the investment at 6.56%.
Data and Calculations:I/Y (Interest per year) = 6.56%
PMT (Periodic Payment) = 0
FV (Future Value) = $15,000
P/Y (# of periods per year) = 4
C/Y (# of times interest compound per year) = 4
Results:
PV = $7,513.52
Total Interest $7,486.48
N (# of periods) = 42.5 (10.625 years x 4)
The period = 10.625 years (42.5/4)
Thus, for an investment to double in value at an interest rate of 6.56% compounded quarterly, the period required is exactly 10.625 years.
Learn more about determining the required period of an investment at brainly.com/question/20392017
The slope of the line below is - Write a point-slope equation of the line
using the coordinates of the labeled point.
Answer:
[tex]y +9 = -4(x - 4)[/tex]
Step-by-step explanation:
Given
[tex]m = -4[/tex] --- slope
[tex](x_1,y_1) = (4,-9)[/tex] --- point
See attachment for complete question
Required
Determine the line equation
This is calculated as follows:
[tex]y - y_1 = m(x - x_1)[/tex]
Substitute values for m, x1 and y1
[tex]y - (-9) = -4(x - 4)[/tex]
Simplify the expression on the left-hand side:
[tex]y +9 = -4(x - 4)[/tex]
please help asap no trolls!
Answer:
t = 17
s = 46
Step-by-step explanation:
Congruent Triangles
If two triangles are determined to be congruent, their side lengths and angles have the same measure.
We are given the condition that triangles HIJ and DCB are congruent. This implies that sides JH and DB have the same measure, thus:
s = 46
We can also say that sides IJ and CB have the same measure, thus:
t = 17
If Jim Roller can paint a room in 3 hours while John Brush would take 5 hours, how long will they take if they work together? 1/8 hour 8/15 hour 1 7/8 hours
Answer:
Step-by-step explanation:
Each hour, Jim does 1/3 of the job if working alone.
Each hour, John does 1/5 of the job if working alone.
Let x = number of hours to do the job if they work together. So, each hour, they do 1/x of the job when they work together.
We get the equation: 1/3 + 1/5 = 1/x
Multiply the equation by the LCD, 15x: 5x + 3x = 15
8x = 15
x = 15/8 = 1 7/8 hrs
ANSWER: (C).
Identify the reciprocal of each number. Type it in the blank, using a slash () to show a fraction,
5/6
Answer:
Answer: 6/5
Step-by-step explanation:
When finding the reciprocal, we essentially just "flip" or take the inverse of the number we are given. For example, the reciprocal of 1/2 would be 2/1 or 2. The given number multiplied by the reciprocal should always equal 1. If it does, then we know we are correct.
In this case, we are finding the reciprocal of 5/6, so we "flip" the numerator and the denominator to get 6/5.
To check our work, we need to multiply our original number and its reciprocal.
5/6 x 6/5 = 30/30 = 1
Now, we know we are correct, that the reciprocal of 5/6 is 6/5.
Determine the value of side h in the diagram below
what is 4 multiplied by 2/3 in fraction form
Answer:
Step-by-step explanation:
2 and 2/3 i believe
Answer:8/3
Step-by-step explanation:i don't know if you wanted improper or not
plz leave a like
One of the diagonals of a rectangle a 20 cm long. The difference between its length and its width is 4 cm. Find the area of the rectangle?
Answer:
A = 192 cm²
Step-by-step explanation:
Given that,
The length of the diagonal of a rectangle is 20 cm.
The difference between its length and its width is 4 cm.
Let the length is l and width is b.
ATQ,
l-b = 4 ...(1)
Let x is the diagonal of the rectangle such that,
[tex]x^2=l^2+b^2[/tex]
or
[tex]20^2=l^2+b^2\\\\l^2+b^2=400[/tex] ....(2)
Now we need to solve equation (1) and (2).
Squaring equation (1) : [tex]l^2+b^2-2lb=16[/tex]
Put equation (2) in above equation.
[tex]400-2lb=16\\\\400-16=2lb\\\\2lb=384\\\\lb=192[/tex]
Since, the area of the rectangle, A = lb
A = 192 cm²
Three hundred three and two hundredths
303.02
Three hundred three=303
Two hundredths= .02
= 303.02
Question 11 of 25
What is the area of a triangle with a base of 9 units and a height of 7 units?
A. 126 sq. units
B. 63 sq. units
C. 31.5 sq. units
D. 15.75 sq. units
SUB
Answer:
triangle formula 1/2* base * height
Step-by-step explanation:
1/2*9*7 = 31.5 sq units
41
42
43
44
45
46
47
48
49
50
Which data set is the most spread from its mean?
026, 6, 20, 36
28, 15, 30, 15
49, 17, 4, 18
O 14, 20, 24, 30
Answer:
The set {49, 17, 4, 18}
Step-by-step explanation:
Notice that the set {49, 17, 4, 18} has a mean of (49+17+4+18)/ 4 = 22, and it is spread from the smallest value (4) in 18 units. This is the largest spread from the mean compared to the other 3 sets whose maximum spreads are: 16, 8,and 8.
A news report says that 9% of middle school students are on the track team.
There are 600 students in your middle school.
How many students in your school would you expect to be on the track team?
Answer:
54 students.
Step-by-step explanation:
If you have 600 and 9% the nearest rounding point is %10. %10 of 600 is 60, and 1% of 60 is 6, so 60-6=54.
please helppppppppppppppp
Answer:
D
it is D D D D D D D D D D D D D D D D D D D
5/8 - 4/5 subtract as indicated and express your answer in lowest terms
Answer:
-7/40
Step-by-step explanation:
5/8 - 4/5
~Find common denominators
25/40 - 32/40
~Subtract
-7/40
Best of Luck!
Compute the following: 5!
a. 60
b. 120 (correct)
c. 15
d. 5
Answer:
120
Step-by-step explanation:
5!
=5×4!
=5×4×3×2×1
=120
Step-by-step explanation:
5!
= 5×4×3×2×1
=20×6
=120 is the correct answer
Round the nearest 2 decimal places, 892/15=
Answer:
59.47
Step-by-step explanation:
a calculator might help
Need help Plz 38 points
Lydia collects shells. She has 24 sea snail shells,
16 conch shells, and 32 scallop shells. She wants
to display the shells in equal rows, with only one
type of shell in each row. What is the greatest
number of shells Lydia can put in each row?
Answer:
2
Step-by-step explanation:
32 divided by 16 is 2
The graph below have the same shape . What is the equation of the red graph ?
A. G(x) = (7-x)^2
B. G(x) = 1-x^2
C. G(x) = 7-x^2
D. G(x) = (1-x)^2
Answer:
Option B is correct .
Step-by-step explanation:
According to Question , both the graph have same shape . If we look at the the first graph it cuts x - axis at (0 , 2) and ( 0 , -2) . Hence x = 2 and -2 are the zeroes of the equation .
And ,the given function is ,
[tex]\implies f(x) = 4 - x^2 \\\\\implies f(x) = 4-x^2=0 \\\\\implies 2^2-x^2=0\\\\\implies (2-x)(2+x) = 0 \\\\\boxed{\red{\bf \implies x = 2 , (-2) }}[/tex]
• Hence ,we can can see that x = 2 and (-2) are the zeroes of graph.
This implies that if we know the zeroes , we can frame the Equation.
On looking at second parabola , it's clear that cuts x - axis at ( 1, 0 ) and (-1,0). So , 1 and -1 are the zeroes of the quadratic equation . Let the function be g(x) . Here , a and ß are the zeroes.
[tex] \begin{lgathered}\implies g(x) = (x-\alpha)(x-\beta) \\\\\implies g(x) = (1+x)(1-x) \\\\\boxed{\pink{\bf \implies g(x) = 1 - x^2}}\end{lgathered} [/tex]
Hence option B is correct .
The measure of <1
I don’t understand how to solve
Answer:
<1=55°
Step-by-step explanation:
180-125=55
Find the product.
(–12 - n)2
Answer:
n^2 +24n +144
Step-by-step explanation:
(-12-n)^2
(-12-n)(-12-n)
144+12n+12n+n^2
n^2 +24n +144
i think... :)
If u steal point i report
Answer:
Y:4 X:540
Step-by-step explanation:
Answer: first divide so you make it one and then you multiply hope that helps
Step-by-step explanation: then you can add them to get by one then multiply
Find the average rate of change for the function over the given interval.
y=e^x between x=−2 and x=0
Answer:
The average rate of change for the function over the given integral
[tex]A(x) = \frac{e^{-2} -1}{2}[/tex]
Step-by-step explanation:
Explanation
Average rate of a function:-
We can define the average rate of change of a function from a to b
[tex]A(x) = \frac{f(b)-f(a)}{b-a}[/tex]
Given function f(x) = eˣ
Given interval x = a = -2 and y = b = 0
f(a) = f(-2) = e⁻²
f(b) = f(0) = e⁰
[tex]A(x) = \frac{e^{-2} -1}{0-(-2)}[/tex]
The average rate of change for the function over the given integral
A baker makes 120 cookies per hour. What is the rate of change in minutes?
a.10 cpm
b.2 cpm
c.1/2 cpm
d.12 cpm
Consider the binomial multiplication represented in this table.
A geometric model with 2 columns and 2 rows. The first column is labeled x with entries 2 x squared, A. The second column is labeled 7 with entries B, C. The first row is labeled 2 x with entries 2 x squared, B. The second row is labeled negative 3 with entries A, C.
Perform the binomial multiplication to determine the value of the letters in the table.
A =
B =
C =
Which letters from the table represent like terms?
Answer:
Perform the binomial multiplication to determine the value of the letters in the table.
A = –3x
B = 14x
C = –21
Which letters from the table represent like terms?
A and B
Answer:
The one above me is 100% correct
Step-by-step explanation:
I just did the assignment and it's correct.
Discuss: a. The role of the expansion of 1/(1 - t) in powers of t in the explanation of the Basic Convergence Principle. b. The role of the Basic Convergence Principle in the explanation of the ratio test.
Answer:
See convergence analysis below
Step-by-step explanation:
For the expansion of 1/(1-t) in powers of t, we can recall that an infinite Geometric series with first term "1" and common ratio "t", in the case that the absolute value of "t" is smaller than 1, can be represented by:
[tex]\Sigma\limits^\infty_0\, t^n=\frac{1}{1-t} \\[/tex]
The condition for such, is that the absolute value of "t" is smaller than "1", which gives us the radius of convergence for this series "1" and the interval of convergence: - 1 < t < 1
Recall as well that using the geometric sequence [tex]1 + t + t^2 + t^3 +...[/tex]
The ratio test becomes [tex]\frac{a_{n+1}}{a_n} = t[/tex]
which is the SAME as the common ratio for the geometric sequence, and which in order to converge to the value [tex]\frac{1}{1-t}[/tex] requires that the absolute valu of the common ration be smaller than "1" rendering the same radius of convergence as discussed above.
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
b
Step-by-step explanation:
In the figure a is parallel to b, what is the value of y?
Answer:
y = 60*
x = 30*
Step-by-step explanation:
the bottom angle is the same angle as y and it says 2x meaning that x is 1/2 of y. the full angle across the line is 180* so divide that by 3.
180 / 3 = 60
Paul wants to save $90 to go on a trip with his friends. He has $30 in his savings, and plans on saving $15 a week until he has enough money to go. Which of the equations below represents the situation?
Answer:
15 X w(how many weeks) + 30 = 90 or 15 X 4 + 30 = 90
Step-by-step explanation:
so he needs $90 he has $30 and he gets 15 a week so we are going to say a week will be w so however many weeks (4) so you will need to multiply it by 15 and it will be 60 then you add 30 and you get 90.
Explain how to evaluate algebraic expression
given value of a variable.