Answer:
[tex]k = 2E/x^2[/tex]Step-by-step explanation:
Given formula:
[tex]E = 1/2kx^2[/tex]To solve for k, multiply both sides by 2 and divide by x²:
[tex]2E=kx^2[/tex][tex]k = 2E/x^2[/tex]Answer:
[tex]\sf\longmapsto \: k = \frac{2E}{x {}^{2} } [/tex]
Step-by-step explanation:
The formula given is :
[tex]\sf\longmapsto \: E = \frac{1}{2} kx²[/tex]
Now, multiply (×) both sides by 2 and divide (÷) by x^2
[tex]\sf\longmapsto \: 2E = kx²[/tex]
[tex]\sf\longmapsto \: k = \frac{2E}{x {}^{2} } [/tex]
Juanita is tying ribbon on gift bags. She has 24 feet of ribbon and each gift bag uses 0.75 foot of ribbon. The function
r = 24 -0.75g represents the amount of ribbon r Juanita has left after tying ribbon on g gift bags. Find the zero of the function. Describe
what this value means in the context of this situation
The zero of the function is at ___. This represents that after tying ribbon on ____ gift bags, Juanita will have ____ feet of ribbon left.
The zero of the function is at 32 gift bags. This represents that after tying ribbon on 32 gift bags, Juanita will have zero feet of ribbon left.
According to the question;
The function r = 24 -0.75g represents the amount of ribbon r Juanita has left after tying ribbon on g gift bags.The zero of the function is at, r = 0.
Therefore;
0 = 24 -0.75gg = 24/0.75g = 32.This value means that after tying 32 gift bags, Juanita will have zero feet of ribbon left.
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IF YOU ARE REALLY GOOD A MATH THEN PLEASE ANSWER THIS !!!
Your help will be much appreciated because i am losing my sanity doing this math
Hey there!
Let's take the number of cows in the field as 'c'.
Then, the number of horses in the field is = c + 2 [2 more horses than cows]
Total number of animals on the field = 16.
So, equation becomes...
c + c + 2 = 16
2c + 2 = 16
Hope it helps ya!
5) How many gal. of a 65% saline solution
must be mixed with 8 gal. of pure water to
make a 25% solution?
1) At Frannie's Fruit Market the price per orange (or unit rate) is $0.45. If a graph is made showing
the relationship between the number of oranges (x) and the total cost (y), which does not
represent the slope of the line?
50 POINTS
Answer:
b) 5/9Step-by-step explanation:
The unit rate is same as the slope:
m = 0.45 = 45/100 = 9/20Compare with the answer choices:
a) 45/100, Same or equivalentb) 5/9, Differentc) 9/20, Same or equivalentd) 27/60 = 9/20, Same or equivalentANSWER LAST QUESTION PLZZZ
Step-by-step explanation:
what ask you ask you not ask any question please write your question please mark me brainlist
def is a right triangle.
Answer:
false
Step-by-step explanation:
I am not sure about it if correct pls no mark me as brainliest tq
Find the equation of the line that passes through (1,3) and is perpendicular to
y=2x+3
Leave your answer in the form y=mx+c
Answer:
y=-1/2x+7/2
Step-by-step explanation:
Gradient is negative reciprocal so -1/2x
3=-1/2x + 7/2
y=-1/2x+7/2
Answer:
perpendicular lines have the same gradient
y=2x+3
The gradient of the two lines is 2
Gradient=change in y/change in x
=y2-y1/x2-x1
Let (x,y) also lie on the line
2= y-3/x-1
2(x-1) =y-3
2x-2=y-3
2x-y=-3+2
2x-y= -1
2x+1 =y
y=2x+1
Step-by-step explanation:
HOPE THAT THIS IS HELPFUL.
HAVE A GREAT DAY
Find the angles marked x,y and z.
ASAP
Answer:
x= 45°
y= 95°
z= 85°
hope this helps <3
Answer:
Step-by-step explanation:
x= 50
y+25=180(because it is on a straight line)
y+25=180
y+25=180
y+25-25= 180-25
y+0= 155
y= 155
z+ y=180
z+ 155= 180
z+ 155- 155 =180-155
z+ 0 = 25
z = 25
x = 50
y = 155
z = 25
Given that Cos(A) = .6 and csc(A) is -1.25, what is tan (a)
============================================================
Explanation:
cos(A) = 0.6 = 6/10 = 3/5
Recall that csc is the reciprocal of sine.
If csc(A) = -1.25, then sin(A) = 1/csc(A) = 1/(-1.25) = -0.8 = -8/10 = -4/5
Then we would have
tan(A) = sin(A)/cos(A)
tan(A) = sin(A) ÷ cos(A)
tan(A) = (-4/5) ÷ (3/5)
tan(A) = (-4/5) * (5/3)
tan(A) = -4/3
Answer:
-4/3
Step-by-step explanation:
Check the solution
w x and y are three integers w is 2 less than x y is 2 more than x prove that wy+ 4 =x^2
w + 2 = x
x + 2 = y
Cross multiply
y(w+2) = x(x+2)
wy + 2y = x^2 + 2x
make x the subject of the equation
x = y - 2
substitute this in place of (x) in 2x
wy + 2y = x^2 + 2(y-2)
wy + 2y = x^2 + 2y - 4
wy + 2y - 2y + 4 = x^2
wy + 4 = x^2
what is the x and y intercept of 18x-3y=15
Answer:
18(0) -3y = 15
-3y=15
now divide-3 from both sides
y= 15/-3
reduced is -5
y int = (0,-5)
18x-3(0)=15
18x=15
divide the 18 from both sides
x=15/18
reduced is 5/6
x int = 5/6
(7x+19){}(x+1){}(x+5)
We move all terms to the left:
7x-19-(x+5)=0
We get rid of parentheses
7x-x-5-19=0
We add all the numbers together, and all the variables
6x-24=0
We move all terms containing x to the left, all other terms to the right
6x=24
x=24/6
x=4
standard form
y = -8x + 7
Choose the symbol that correctly compares the fractions below.
9/11 ? 10/11
a.) >
b.) <
c.) =
Answer:
b) <
Step-by-step explanation:
Answer:
b.)<
9 / 10 < 10 / 11
Hope it helps:-)
solve pls brainliesttt
Answer:
-343
-125
Here you go
Answer:
1. -343
2. 25
3. v+21=47 v= 26
Step-by-step explanation: Hope this helps!
Carpenter Chalberg is building a new wall in his house. The wall is 8 feet long and 8 feet tall. The wall will be framed with wood and also have studs (vertical supports) at least every 18 inches. The wall has no doors or windows. He is looking to purchase enough 8 foot boards of wood to make the wall’s frame. How many boards will Carpenter Chalberg need?
9514 1404 393
Answer:
9
Step-by-step explanation:
For studs 16" O.C., Chalberg will need 9: one at the beginning of each of the 16" spaces in the 96" width of the wall, and one at the end. That's a total of 6+1 = 7 studs.
The top and bottom edges of the wall are each 8', so will require 1 more board each.
The total number of boards Chalberg needs is 9.
What can you multiply 2 to 10 by to get the ratio of 4 to 20
Answer:
multiply both by 2
Step-by-step explanation:
2 x 2 = 4
10 x 2 = 20
Nancy sold tickets to a school play. She sold $426 worth of tickets. She sold 8 more adult tickets than children tickets and 3 times as many senior tickets than children tickets. If children tickets are $3, senior tickets are $4 and adult tickets are $6, how many adult tickets did Nancy sell
Answer:
So number of Adult tickets sold = A = 26.
Step-by-step explanation:
Define A, C, S as
A = number of adult tickets,
C = number of children tickets,
S = number of Senior tickets.
Then, by the statement of the problem, we have that
A = 8 + C,
S = 3C,
3C + 4S + 6A = 426,
so that
3C + 4(3C) + 6(8 + C) = 426
3C + 12C + 48 + 6C = 426
21C + 48 = 426
7C + 16 = 142
7C = 126
C = 126/7 = 18
A = 8 + 18 = 26
S = 3(18) = 54
The functions f and g are defined as follows.
f(x)=-3x-1
3
g(x)=2x? +2
Find f (2) and g(-2).
Simplify your answers as much as possible.
__________
[tex] \: [/tex]
f(x) = -3x - 1
g(x) = 2x + 2
Soo :
f(2) :f(2) = -3(2) - 1
f(2) = -6 - 1
f(2) = -7✔
.
g(-2) ;g(-2) = 2(-2) + 2
g(-2) = -4 + 2
g(-2) = -2✔
Pls help due in 10 minutes
Answer:
here is your answer hope it helps you
I'm thinking of 2 numbers. Both numbers have the same absolute value. What number must be true about the 2 numbers?
Answer: they have the same number in them for example -4 and 4
Step-by-step explanation:
Which equation, when solved, results in a different value of x than the other three? O -7-9-20 0 + 5 3 7 X=-20 4 O 3 4. - (b)*--20 +7(49-2-06-4) 8 O
Answer:
1
Step-by-step explanation:
Adjoa’s gross salary for last month was Ghc4,687.24. If Ghc421.78 was deducted from Adjoa’s salary pay, how much take-home pay did Adjoa earn this past month?
Adjoa’s gross salary for last month was Ghc4,687.24. If Ghc421.78 was deducted from Adjoa’s salary pay, the take-home pay that Adjoa earn in the past month is Ghc4,265.46
The gross salary is the amount received by an individual prior to the deduction of the taxes.
Given that:
Adjoa's gross salary for last month = Ghc4,687.24and Ghc421.78 was deducted from Adjoa's salary pay.Then, the take-home that Adjoa earned in the past month is calculated by removing the amount deducted from her gross salary.
i.e.
= Ghc4687.24 - Ghc421.78
= Ghc4,265.46
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HURRY PLEASEEEEE
The measure of segment AB with a(-4,-9) and B(4, -3) is
Answer: 10
Step-by-step explanation:
using [tex]d = \sqrt{(x_{1}-x_{2} )^{2} +(y_{1}- y_{2} )^{2} }[/tex] when [tex]P_{1} =(x_{1} ,y_{1} )[/tex] and [tex]P_{2} = (x_{2}, y_{2})[/tex]
so [tex]d = \sqrt{((-4)-4)^{2}+((-9)-(-3))^{2} }[/tex]
[tex]d = \sqrt{(-4-4)^{2}+(-9+3)^{2} }[/tex]
[tex]d = \sqrt{(-8)^{2}+(-6)^{2} }[/tex]
[tex]d = \sqrt{64+36}[/tex]
[tex]d= \sqrt{100}[/tex]
[tex]d = 10[/tex]
please give me a brainliest answer
How do you write 3.707 x 10-8^-8 in standard form? ASAP BRAINLIST
please help and explain how to solve these! Thanks
Step-by-step explanation:
Use the Pythagorean Theorem to find the missing sides in the triangles.
[tex]c^{2}[/tex] = [tex]a^{2}[/tex] + [tex]b^{2}[/tex]
Q2. [tex]c^{2}[/tex] = 8^2 + 40^2
[tex]c^{2}[/tex] = 1664
c = [tex]\sqrt{1664}[/tex]
c = 8[tex]\sqrt{26}[/tex]
Find the missing sides of the other triangles and figure out which ones are the same.
Q3. Do the same thing as Q2.
square root of 55 to the nearest integer
F(x)= 2x^3 + 5x^2 -x -6 is divided by x+1
What is the remainder and is it a fraction?
Remainder: 0 or -2
Is it a factor: yes or no
Step-by-step explanation:
substitute x= -1 into the equation to get the remainder
remainder= -2
the remainder is not a fraction
no, it is not a factor since its remainder is not zero
[tex]J=∫_e^b▒3dx/(xln^2 x)[/tex]
Answer:
huh rewrite the question
What are the characteristics of the graph of the inequality x < 4.5?
The ray will move to the left.
It will use a closed circle.
It will use an open circle.
The ray will move to the right.
Answer:
see explanation
Step-by-step explanation:
Given x < 5
The graph will have an open circle at 5 indicating that x is not equal to 5, which would be a closed circle.
The ray will move to the left since values less than 5 are to the left of 5
Answer:Please see explanation
Step-by-step explanation:
What are the characteristics of the graph of the inequality x < 4.5?
The answer is The ray will move to the left.
It will use an open circle.
Please votes me 5 stars,1 heart,and mark as brainliest. Thanks