Answers
Explanation:
12/18 = x/13.5
12(13.5) = 18x
162/18 =18x/18
9= x
Related Questions
eliminate the parameter in the equations x=5cos(t) -7 and y=5sin(t)+9. how can the rectangular equation be described?
circle
ellipse
parabola
hyperbola
Answers
Answer:
the answer is A
Step-by-step explanation:
The parameters represent a circle with a radius of 5 units, centered at (-7,9) and the equation of the circle is (x + 7)² + (y - 9)² = 5².
Deducing the figure from the parameters:The given equations are:
x = 5cos(t) - 7, and
y = 5sin(t) + 9
if we rearrange the above equations we get:
(x + 7) = 5cos(t), and
(y - 9) = 5sin(t)
Taking square of both equation we get:
(x + 7)² = 25cos²(t), and
(y - 9)² = 25sin²(t)
Now, adding the equations we get:
(x + 7)² + (y - 9)² = 25cos²(t) + 25sin²(t)
(x + 7)² + (y - 9)² = 25
(x + 7)² + (y - 9)² = 5²
This is an equation of a circle with a radius of 5 units and the center at (-7,9)
since, the equation of a circle with radius R units and centered at (a,b) is given by:
(x -a)² + (y - b)² = R²
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uhh- well uh i need help and it would be lovely if ya’ll helped ty very much
Answers
Answer:
x + 3 = y
Step-by-step explanation:
Hope that helps!
Try substitute every number with the equation above.
Sub x=-4 and y=-1,
-4 + 3 = -1
-1 = -1
Sub x=-3 and y=0
-3 + 3 = 0
0 = 0
Sub x=-2 and y=1
-2 + 3 = 1
1 = 1
Sub x=-1 and y=2
-1 + 3 = 2
2 = 2
Hope it helps!
a=10t+0 find the y intercept
Answers
Answer:
0
Step-by-step explanation:
The y intercept is the constant in this equation, as in the only number unaccompanied or affected by a variable. In this case, assuming y is a and x is t, the y intercept is 0. You can test this by plugging in y=10x+0 into a graphing calculator. The y intercept is where x equals 0, and so if you plug in 0 for x, the result (in this case 0) is the y intercept. Hope this helps, brainliest is always appreciated and have an amazing day!
Can someone explain how to do this?
Answers
i cant give you the answer but i know how u can figure it out, go to g00gle calculator or look up "Algebra Calculator"....you wont regret it!!!
you have to try to find a fraction that is similar to the first. so 7/14 and 5/10, 6/12, 4/8, 3/6, 2/4, 1/2, so on and so forth. so x can equal any number related to 7/14.
Write the equation of the line that passes through (4, -6) and (8, 10)
Answers
Answer:
Line equation: y=4x−22
Slope: 4
Intercept: -22
Step-by-step explanation:
Find the solution of the system of equations.
6x+y=30
−2x−5y=18
Answers
Answer:
Step-by-step explanation:
6x + y = 30
-6x - 15y = 54
-14y = 84
y = -6
6x - 6 = 30
6x = 36
x = 6
(6, -6)
PLS HELP QUICK !!!!!!!
what is the area of this figure?
Answers
Answer:
... what figure?
Step-by-step explanation:
you forgot to add a picture
Answer:
ummmm what...?........
I NEED HELP PLS ASAP
Answers
‼️help please.‼️What is the slope-intercept equation of the line with a slope
4
of and a y-intercept of 3?
5
Answers
Answer:
C
Step-by-step explanation:
according to the standard equation;
Y=mX+C
or, Y=4/5X +3
Which relation is a function?
{(3, 4), (3, 3), (1, 2), (1, 5)}
{(1, 4), (1, 3), (1, 2), (1, 1)}
{(1, 3), (2, 6), (3, 9), (4, 12)}
{(3, 4), (2, 4), (5, 1), (3, 5)}
Answers
Answer:
the 3rd one
Step-by-step explanation:
because it's in a pattern
Answer:
3rd.
Step-by-step explanation:
Suppose that the height H of a Ferris wheel can be modeled by the function H(A=-16cos(pi t/45)+24 where t is the time in seconds. What is the maximum height of a cabin? Use 3.14 for pi
Answers
Answer:
Step-by-step explanation:
Range of cosine is -1 to 1
Range of height is 8 to 40
Helppppppppppppppppppp
Answers
Answer:
1.base
2.Quitiont
3.subtract
4.product
5 multiply the exopnent.
Plzzzzz help need fast if cannn plzzz
Answers
Answer:
D) 2.1
Step-by-step explanation:
HOPE IT HELPS YOU
YOU CAN MARK ME AS BRAINIEST IF YOU WANT
Answer: 2.1 I think please don’t be mad if I’m wrong
Step-by-step explanation:
Drop the answer- or i'll drop ur ip peanuts :) <3
Answers
Step-by-step explanation:
-18x -14 = - 68
=> -18x = -68 + 14
=> -18x = -54
=> 18x = 54. ['-' on both sides gets cancelled]
[tex] = > x = \frac{54}{18} [/tex]
=> x = 3 (Ans)
The length and breadth of a rectangular room are 5m and 3.2m. Find the cost carpeting the room at the rate of $500 per square metre
Answers
Write a function rule to describe this statement-
A model is %60 of the size of the real item.
Answers
Answer:
let the size of the real item be x
then the size of model as prodived will be =
60% of X
60/100 × X
=3X/5 .
Determine if the sequence below is arithmetic or geometric and determine the
common difference / ratio in simplest form.
2, 11, 20, ...
Answers
Answer:
arithmetic, 9, 1.8181818181818
Step-by-step explanation:
it is arithmetic, because it is adding by 9 every time.
I don't know what they mean by simplist form, but thats what 20/11 equals.
Answer:
yes yes wainth inde Windows
HELP PELASE ASAPppppp
Answers
Answer:
Part 1 d/a = a/f
d/b = b/c
e/c = c/f
Explanation:
The triangles are similar.
This is about equal proportion. Look at the relationship between the short leg to the hypotenuse, short leg to long leg, and long leg to hypotenuse.
Part 2:
78
Explanation:
Calculate x, then substitute to get the lengths of the sides. Given equal angles, the two sides are equal.
5x –19 = 2x +11
3x = 30
x= 10
5(10) –19 = 31
2(10) + 11 = 31
Add the three sides: 31 +31 +16 = 78
Part 3:
Sin A= Cos B. both are a/b
Sin C= Cos A both are c/b
Sin C = c/b
Explanation:
Remember S=o/h, C=a/h , T=o/h
Look at the relationship of the sides to the angles given. If the sides match, the statement is true.
Sine of angle A is side a to side b. This is opposite/hypotenuse
Cosine of angle B is side a to side b This is adjacent/hypotenuse.
The lengths a and b are used in both. The hypotenuse don't change, but whether a side is considered an opposite or an adjacent depends on which angle you are looking at.
This can be confusing, but the more you practice, the easier it gets.
I hope this helps!
Math has me dead. Looks simple but it really isnt that easy.
Answers
Answer:
I am pretty sure the answer is A. I really hope this helps
Step-by-step explanation:
I dont have time to explain it im sorry my next class starts in 3 mins
Answer:A
Step-by-step explanation:
Explain how I would use Distributive Property (GCF) to factor the following expression: 4m + 16
Answers
Answer:
4(m+4)
Step-by-step explanation:
4m+16
Rewriting
4*m + 4*4
Factor out 4
4(m+4)
Marsha went shopping at Best Buy and spent $75.25. If the sales tax was 8.75%, how much was her total bill?
Answers
Answer:
The answer is 81.834375
Step-by-step explanation:
Hope this helps
Answer:
$81.83
Step-by-step explanation:
Amount spent: £75.25
Sales tax: 8.75%
1% of 75.25 = 0.7525
0.7525 x 8.75 = 6.584375
75.25 + 6.584375 = 81.834375
As this question involves money it needs to be rounded to 2 decimal places:
$81.83
y=-1/2-16K+10 in vertex form
Answers
Step-by-step explanation:
Let's solve for k.
y=
−1
2
−16k+10
Step 1: Flip the equation.
−16k+
19
2
=y
Step 2: Add (-19)/2 to both sides.
−16k+
19
2
+
−19
2
=y+
−19
2
−16k=y+
−19
2
Step 3: Divide both sides by -16.
−16k
−16
=
y+
−19
2
−16
k=
−1
16
y+
19
32
Answer:
k=
−1
16
y+
19
32
Raon has a pitcher that holds three and seven-hundredths liters of orange juice.
If he divides the juice equally into ten glasses, how many liters of juice will be in each glass?
Choose all the correct answers
0.307
3 x 1 x 7 x 1/100
3 x 1/10 + 7 1/1000
3 x 100 + 7 x 1/ 1000
3.07
3 x 1/10 + 7 x 1/100
Answers
Answer:
A
Step-by-step explanation:
Five friends share 6 snacks equally.
How many fruit snacks will each friend get?
Answers
Answer:
A
Step-by-step explanation:
Which linear inequality best represents the graph?
Answers
Answer:
[tex]3x - 4y \geqslant - 12[/tex]
Step-by-step explanation:
[tex]3x - 4y \geqslant - 12[/tex]
[tex] - 4y \geqslant - 3x - 12[/tex]
Y <= 3/4X +3
The art club is designing a rectangular mural for the school hallway. Three
corners are located at (-1,-1),(-1, 1), and (4.1) on a coordinate plane. Find the
fourth vertex and graph the rectangle on the coordinate plane below.
Fourth vertex:
Answers
Answer:
The coordinates are (50, 103)
Step-by-step explanation:
The three hallways are AB, BC, CD.
The co-ordinate of D is (50, 75).
The school's flagpole is 28 meters right of the point D.
Hence the y-coordinate for the flagpole will be same as D, that is 75.
The x-coordinate will be (28 + 75) = 103.
The location of the school's flagpole will be represented by (50, 103)
The 4th vertex of the rectangle is given by D ( 4 , -1 ) and the graph is plotted
What is the Area of a Rectangle?The area of the rectangle is given by the product of the length of the rectangle and the width of the rectangle
Area of Rectangle = Length x Width
Given data ,
Let the area of the rectangle be represented as S
Let the rectangle be represented as ABCD
The coordinates of A = A ( -1 , -1 )
The coordinates of B + B ( -1 , 1 )
The coordinates of C = C ( 4 , 1 )
So , the length of the rectangle = 4 units
The width of the rectangle = 2 units
So , the area of the rectangle S = 4 x 2 = 8 units
And , the 4th vertex of rectangle D = D ( 4 , -1 )
Hence , the coordinate D of rectangle is D ( 4 , -1 )
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Elan took his cat and dog to the vet, his cat weighed 482 pounds, and his dog weighed 158 pounds, how much pounds did his dog weigh?
Answers
secA-tanA/secA+tanA=cos^2A/(1+sin^2A) could somebody prove this pls......
Answers
9514 1404 393
Answer:
it cannot be proven
Explanation:
You cannot prove what isn't true.
We know you know how to use parentheses, so we take the left-side expression at face value. The left-side and right-side functions are different, so cannot be proved to be the same, except at specific angles.
Mrs. Trotta drives a total of 378 miles over 6 days. She drives the same amount of miles each day. How many miles does Mrs. Trotta drive each day?
Answers
Answer:
63 miles per day
Step-by-step explanation:
The miles she drove: 378
Number of days: 6
Solve:
378/6= 63
Check your math:
63*6=378
Hope this helps!
Your store cost on a dozen eggs is $0.75, and your retail price is $2.99. You are having a promotion that discounts the
eggs 10%. What is your margin on the discounted eggs?
Answers
Answer:
$1.94
Step-by-step explanation:
The Margin on the discounted eggs is $2.392.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
Store cost on a dozen eggs is $0.75,
and retail price is $2.99.
The amount of discount is 10%
Discount given on $2.99
= 10% of 2.99
= 0.1 x 2.99
= 0.299
Cost of eggs after discount =2.99-0.299= 2.691
So, The discounted eggs costs $2.691.
Hence, The difference in store cost and discounted cost = 2.691- 0.299
= $2.392
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