\( {c}^{2} - {b}^{2} = {a}^{2} \)
\( {15}^{2} - {13}^{2} = {56}^{2} \)
\( \sqrt{56} = 7.5\: yd\)
//
\(sin = \frac{opp}{hyp} \)
\( {sin}^{ - 1} = \frac{13}{15} \)
\( = 60 \: degrees\)
//
\(180 - 90 - 60 = 30 \: degrees\)
To harmandeep or someone else please help me
Answer: 3x+6=9
3x=3
x=1
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
To solve this, we must first isolate the variable 'x':
3x + 6 = 9
-6 -6
3x = 9 - 6
Combine like terms
3x = 3
Isolate 'x' fully
3x = 3
/3 /3
x = 1
Hope this helps :)
blank is an equation that can be used to solve the proportion 8/15 = x/6
Answer:
\(\huge\boxed{x=3\dfrac{1}{5}\to x=3.2}\)
Step-by-step explanation:
\(\dfrac{8}{15}=\dfrac{x}{6}\quad|\text{cross multiply}\\\\15\cdot x=8\cdot6\\\\15x=48\qquad|\text{divide both sides by 15}\\\\\dfrac{15x}{15}=\dfrac{48}{15}\\\\x=\dfrac{48:3}{15:3}\\\\x=\dfrac{16}{5}\\\\x=3\dfrac{1}{5}\to x=3.2\)
Answer:
3 1/5
Step-by-step explanation:
8/15 = x/6
cross multiplication
8*6 15*x
48/15x
x = 3 1/5
A rectangular field is 30m longer than wide.
The area of the field is 8800m²
300 Work out the perimeter of the field.
The perimeter of the field is 380m
What is perimeter?
A perimeter is a closed path that encloses, surrounds, or delimits a one-dimensional length, a two-dimensional shape, or both. The circumference of a circle or an ellipse is its perimeter. There are numerous practical uses for calculating the perimeter.
Let, a rectangular field is 30m longer than wide.
The area of the field is 8800m².
Suppose the width of the rectangular field is x.
So, length of the rectangular field becomes x + 30.
As the area of the field is 8800m².
Since,
Area of rectangle = length x width
8800 = (x + 30) x x
8800 = x^2 + 30x
x^2 + 30x - 8800 = 0
x^2 + 110x - 80x - 8800 = 0
x(x + 110) - 80(x + 110) = 0
(x + 110) (x - 80) = 0
⇒ (x + 110) =0, (x - 80) = 0
⇒ x = -110, x = 80
Since, the length is not negative.
Hence, the width of the rectangle is 80m and the length of the rectangle is (x + 30) = (80 + 30) = 110m
Now to find the Perimeter of the rectangle.
Perimeter = sum of all sides
= 80 + 80 + 110 + 110
Perimeter = 380m
Therefore, the perimeter of the rectangle is 380m.
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My friend sent me this to work on, but I’m confused on how to do it :(
Answer:
35 degrees.
Step-by-step explanation:
It's a reflective sideway triangle.
Answer:
x = 35° :)
Step-by-step explanation:
x is 35° because of the vertical angle
Find the exact length of the curve.x = et − 9t, y = 12et/2, 0 ≤ t ≤ 3
To find the exact length of the curve given by x = et − 9t, y = 12et/2, 0 ≤ t ≤ 3, we can use the arc length formula:
L = ∫(a to b) √[dx/dt]^2 + [dy/dt]^2 dt
Substituting the given values, we get:
L = ∫(0 to 3) √[e^t - 9]^2 + [6e^(t/2)]^2 dt
Simplifying the expression under the square root, we get:
L = ∫(0 to 3) √(e^(2t) - 18e^t + 81 + 36e^t) dt
L = ∫(0 to 3) √(e^(2t) + 18e^t + 81) dt
L = ∫(0 to 3) (e^t + 9) dt
L = [e^t + 9t] from 0 to 3
L = [e^3 + 9(3)] - [e^0 + 9(0)]
L = e^3 + 27 - 10.99
L ≈ 25.5
Therefore, the exact length of the curve is approximately 25.5 units.
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please need help!!!!!!
Hey there!
1) Radius (r) = 23.9846
Circumference (c) = 150.7in
Area = 1,807.243in
2) Radius (r) = 34.98226
Circumference (c) = 219.8
Area = 3,844.55m²
3) Radius (r) = 40.9824cm
Circumference (c) = 257.5cm
Area = 5,276.48cm²
4) Radius (r) = 36.9876ft
Circumference (c) = 232.4ft
Area = 4,297.96
5) Radius (r) = 56.9775m
Circumference (c) = 358m
Area = 10,198.97m²
6) Radius (r) = 39.9797in
Circumference (c) = 251.2in
Area = 5,021.45in²
Answer:
add two and take the remaining 5/2
Step-by-step explanation:
Find the slope of (-6,-6) (-6,10)
Answer:
the question is probably wrong
Step-by-step explanation:
10 - -6 = 16
-6 - -6 = 0
16/0= undefined?
Dispersion Calculate the i) dispersion relation, as well as both the ii) group and iii) phase velocities for the following equation: 82y(x, t) 8t2 84y(x,t) = -2 8x4
i) The dispersion relation for the given equation is ± (v / 6) * k.
ii) The group velocity for the given equation is ± v / 6.
iii) The phase velocity is ± v / 6.
To find the dispersion relation, as well as the group and phase velocities for the given equation, let's start by rewriting the equation in a standard form:
82y(x, t) - 8\(t^2\) + 84y(x,t) = -2 * 8\(x^4\)
Simplifying the equation further:
8(2y(x, t) - \(t^2\) + 4y(x,t)) = -16\(x^4\)
Dividing both sides by 8:
2y(x, t) - \(t^2\) + 4y(x,t) = -2\(x^4\)
Rearranging the terms:
6y(x, t) = \(t^2\) - 2\(x^4\)
Now, we can identify the coefficients of the equation:
Coefficient of y(x, t): 6
Coefficient of \(t^2\): 1
Coefficient of \(x^4\): -2
(i) Dispersion Relation:
The dispersion relation relates the angular frequency (ω) to the wave number (k). To determine the dispersion relation, we need to find ω as a function of k.
The equation given is in the form:
6y(x, t) = \(t^2\) - 2\(x^4\)
Comparing this with the general wave equation:
A * y(x, t) = B * \(t^2\) - C * \(x^4\)
We can see that A = 6, B = 1, and C = 2.
Using the relation between angular frequency and wave number for a linear wave equation:
\(w^2\) = \(v^2\) * \(k^2\)
where ω is the angular frequency, v is the phase velocity, and k is the wave number.
In our case, since there is no coefficient multiplying the y(x, t) term, we can set A = 1.
\(w^2\) = (\(v^2\) / \(A^2\)) * \(k^2\)
Substituting the values, we get:
\(w^2\) = (\(v^2\) / 36) * \(k^2\)
Therefore, the dispersion relation for the given equation is:
ω = ± (v / 6) * k
(ii) Group Velocity:
The group velocity (\(v_g\)) represents the velocity at which the overall shape or envelope of the wave propagates. It can be determined by differentiating the dispersion relation with respect to k:
\(v_g\) = dω / dk
Differentiating ω = ± (v / 6) * k with respect to k, we get:
\(v_g\) = ± v / 6
So, the group velocity for the given equation is:
\(v_g\) = ± v / 6
(iii) Phase Velocity:
The phase velocity (\(v_p\)) represents the velocity at which the individual wave crests or troughs propagate. It can be calculated by dividing the angular frequency by the wave number:
\(v_p\) = ω / k
For our equation, substituting the dispersion relation ω = ± (v / 6) * k, we have:
\(v_p\) = (± (v / 6) * k) / k
\(v_p\) = ± v / 6
Therefore, the phase velocity for the given equation is:
\(v_p\) = ± v / 6
To summarize:
(i) The dispersion relation is ω = ± (v / 6) * k.
(ii) The group velocity is \(v_g\) = ± v / 6.
(iii) The phase velocity is \(v_p\) = ± v / 6.
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There are 6 bananas and 4 cookies what is the ratio
Answer:
6:4
Step-by-step explanation:
Answer:
3:2
Step-by-step explanation:
For every 3 bananas, there are 2 cookies.
If a line has a slope of 3/4 then what would be the slope of the parallel to it
Answer:
it would also be 3/4x (in terms of y=mx+c)
Step-by-step explanation:
parallel lines have the same slope/gradient
help please what answer for this 4(2x-3) =6x+2
4(2x-3)=6x+2
8x-12=6x+2
8x-6x=2+12
x=7
Multiply 4 with 2x - 3
8x - 12 = 6x + 2Take 6x to LHS and make it negative. And take -12 to RHS and make it positive. This process is called transposition.
8x - 6x = 2 + 12Now subtract 6x from 8x, we get 2x. And on the RHS, it will be 14.
2x = 14Now divide both sides with 2.
2x/2 = 14/22 and 2 gets cancelled out in LHS.
x = 7Answer:
x = 7
Hope you could understand.
If you have any query, feel free to ask.
7) if 370x9 is a
multiple of 3 where x is a digit, what are the value of x
Answer:
A number is a multiple of 3 if the sum of the digit equal to a number divided by 3
so, 3+7+0+9=19
21, 24, 27 are numbers that is a multiple of 3
So, the number are
19+x=21
x=2
19+x=24
x=5
19+x=27
x=8
Answer:
1110
Step by step explanation:
370×9=3330
in the question it's said that 370 ×9 is a multiple of 3
i.e,3330 is a multiple of 3.
3 multiplied with x = 3330
x = 3330/3
=1110
SOMEBODY!!! HEELLLLLLP if you can help me with one question that's fine!
Step-by-step explanation:
Question 1The 20° angle is equal to the angle next you friend.
since they are interior alternate angles
The height of the ballon is 600 feet
Let x be the missing distance we are looking for
sin20° = 600/x switch x and sin 20° x = 600/ sin 20° x=1754.28≈ 1754 ftso the missing distance is 1754 feet
Question 2Here I represented the situation to visualize the problem
Let h be L be the length of the ladder
sin 30° = 7/L switch L and sin 30°L= 7/sin 30° = 14L = 14 ftso the ladder is 14 ft
Ridgewood Savings Bank charges a $27 per check overdraft protection fee. On July 8, Nancy had $1,400 in her account. Over the next 4 days, the following checks arrived for payment at her bank: July 9, $1,380.15; July 10, $670 and $95.67; July 11, $130; and July 12, $87.60.
How much will she owe the bank after July 12?
If Ridgewood Savings Bank charges a $27 per check overdraft protection fee. The amount she will owe the bank after July 12 is: $1,071.42.
What is total obligation?Total obligation can be defined as the amount a person owe another person or the debt amount a borrower is expected to payback to a lender.
Balance $1,400
July 9 check ($1,380.15)
Balance $19.85
July 10 check ($765.67)
($670 + $95.67)
Balance -$745.82 (Overdraft)
Now let find the amount she owe
Balance -$745.82
July 11 check $130
Balance -$875.82
July 12 check $87.60
Ending balance -$963.42
Overdraft fee $108
($27 ×4)
Total obligation -$1,071.42
Therefore her total obligation is $1,071.42.
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will mark BRAINLIEST
Answer:
3 workbooks 5 dry earase markers
Step-by-step explanation:
seems to me like you need help offten
Convert this number to scientific notation:
0.009987
Answer:
9.987 × 10^-3
Step-by-step explanation:
PLEASE HELPPP I GIVE BRAINLIEST
Answer: 28°
Step-by-step explanation:
First set up an equation using the fact that a horizontal line has an angle of 180°
140+x+12=180
Solve: 152+x=180
Subtract 152 from both sides: x=28
x=28°
can some one help me with this trigonometry problem?
CotA + cot(60+A)-cot(60-A)=3cot3A
how can i prove this ?
Step-by-step explanation:
Hope it will help you ❤❤
For each ordered pair, determine whether it is a solution to y=-3x-7.
Is it a solution?
Х
5
?
(x, y)
Yes
No
(8, -56)
(-5,8)
(-9, -23)
(4, 19)
Answer:
(-5,8)
Step-by-step explanation:
The given equation y = -3x - 7 holds true for the ordered pair, so (-5, 8) is a solution. Thus, option third is correct.
To determine whether each ordered pair is a solution to the equation y = -3x - 7, we substitute the x and y values into the equation and check if it holds true.
For the ordered pair (8, -56):
y = -3x - 7
-56 = -3(8) - 7
-56 = -24 - 7
-56 = -31
The equation does not hold true for this ordered pair, so (8, -56) is not a solution.
For the ordered pair (-5, 8):
y = -3x - 7
8 = -3(-5) - 7
8 = 15 - 7
8 = 8
The equation holds true for this ordered pair, so (-5, 8) is a solution.
For the ordered pair (-9, -23):
y = -3x - 7
-23 = -3(-9) - 7
-23 = 27 - 7
-23 = 20
The equation does not hold true for this ordered pair, so (-9, -23) is not a solution.
For the ordered pair (4, 19):
y = -3x - 7
19 = -3(4) - 7
19 = -12 - 7
19 = -19
The equation does not hold true for this ordered pair, so (4, 19) is not a solution.
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There is a line through the origin that divides the region bounded by the parabola y=5x−3x^2 and the x-axis into two regions with equal area. What is the slope of that line?
The slope of the line that divides the region bounded by the parabola \(y=5x-3x^2\)and the x-axis into two regions with equal area is 5.
To find the slope of the line that divides the region into two equal areas, we need to determine the point of intersection between the parabola and the x-axis. Since the line passes through the origin, its equation will be y = mx, where m represents the slope.
Setting the equation of the parabola equal to zero, we find the x-values where the parabola intersects the x-axis. By solving the equation\(5x - 3x^2 = 0\), we get x = 0 and x = 5/3.
To divide the region into two equal areas, the line must pass through the midpoint between these x-values, which is x = 5/6. Plugging this value into the equation of the line, we have y = (5/6)m.
Since the areas on both sides of the line need to be equal, we can set up an equation using definite integrals. By integrating the equation of the parabola from 0 to 5/6 and setting it equal to the integral of the line from 0 to 5/6, we can solve for m. After performing the integration, we find that m = 5.
Therefore, the slope of the line that divides the region into two equal areas is 5.
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Daniella and her 10 friends are collecting shells on the beach to make crafts. After
they have collected the shells and put them in a pile, they split them evenly among
the group. Each person gets 4 shells. How many shells did they collect as a group?
Select the correct equation and solve for s.
4+ s = 11; s = 7
s/10 = 4; s = 40
4s = 11; s = 2.75
s/11 = 4; s = 44
Daniella and her friends collected a total of 44 shells.
What is linear equation ?
Linear equation can be defined as equation in which highest degree is one.
Given ,
Daniella and her 10 friends are collecting shells on the beach to make crafts.
After they have collected the shells and put them in a pile, they split them evenly among the group. Each person gets 4 shells.
The correct equation for this problem is:
s = 11 x 4
where s is the total number of shells collected.
Simplifying this equation, we have:
s = 44
Therefore, they collected a total of 44 shells.
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Two 5-sided dice are rolled and the results of the two dice are added together. How many different sums are possible?
Answer:
15 different sums.
Step-by-step explanation:
1+2
1+3
1+4
1+5
1+6
2+3
2+4
2+5
2+6
3+4
3+5
3+6
4+5
4+6
5+6
There is 15 different sums.
y=−2x+2
4x+2y=4
Substitute the resulting expression in the other equation
Answer:
In this section we will discuss the method of graphing an equation in two variables. In other words, we will sketch a picture of an equation in two variables.
Step-by-step explanation:
A balloon is floating above a lake and a sunken canoe is below the surface of the lake. The balloon's vertical position is 12 meters and the canoe's is -4.8 meters. The equation 12 + d = -4.8 represents this situation.
Answer:
4.8x345+338283
Step-by-step explanation:
Pls give the CORRECT answer!!
The exact value of sinθ in simplest radical form is sinθ = 1.
The terminal side of an angle in standard position is a line passing through the point (x,y).
To find the exact value of sinθ, use the trigonometric identity sinθ = y/r, where r is the distance or length of the line segment from the origin
r = √(x² + y²)
Given the point (-20, 21), the value of sinθ is 21/√(20² + 21²).
Simplifying, 21/√(441), sinθ = 21/21 = 1.
Therefore, the exact value of sinθ in simplest radical form is sinθ = 1.
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100 POINTS IF YOU CAN SOLVE
solve using quadratic formula and include steps
2x^2 + 6x - 3 = 0
Answer:
x = (-3+√15)/2 or, x = (-3-√15)/2
Step-by-step explanation:
2x²+6x-3=0
Standard quadratic formula,
ax²+bx+c = 0
where,
x =(-b±\(\sqrt{b^{2}-4ac }\))/2a ...............................(i)
Here,
a = 2
b = 6
c = -3
Putting the values in equation(i), we get,
x = (-6±\(\sqrt{6^{2} -4.2.(-3)}\))/2.2
=(-6 ± √60)/4
=(-6 ± 2√15)/4
= (-3 ± √15)/2
Therefore, x = (-3+√15)/2 or x = (-3-√15)/2 :)
i need help asap!!! what does x equal??
Which inequality matches the graph?
X, Y graph. X range is negative 10 to 10, and y range is negative 10 to 10. Solid line on graph has positive slope and runs through negative 9, negative 10 and negative 3, negative 1 and 3, 8. Above line is shaded.
−2x + 3y > 7
2x − 3y < 7
−3x + 2y ≥ 7
3x − 2y ≤ 7
The solid line on the graph has a positive slope that will be 2y - 3x ≥ 7. Then the correct option is C.
What is the equation of a line passing through two points?Let the equation of the line pass through (x₁, y₁) and (x₂, y₂).
Then the equation of the line is given as,
\rm (y - y_2) = \left (\dfrac{y_2 - y_1}{x_2 - x_1} \right ) (x - x_2)
The points that are on the line are given below.
(-9, -10), (-3, -1), and (3, 8)
The inequality of the line is given as,
(y - 8) ≥ [(8 + 1) / (3 + 3)] (x - 3)
y - 8 ≥ (3/2)(x - 3)
2y - 16 ≥ 3x - 9
2y - 3x ≥ 7
The solid line on the graph has a positive slope that will be 2y - 3x ≥ 7. Then the correct option is C.
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Answer: c
Step-by-step explanation:
i need help finding the gcf of these polynomials
Answer:
3z^2
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Detamine which pair of functions are not inverse
A.g(x)=2+9
h(x) =1/2x-9
B. g(x)=x-1
h(x)=x+1
C. g(x)=3x-6
h(x)=1/3x+2
D. g(x)=3x+4
h(x)=x-4/3
The pair of functions that are not inverses of each other is (A).
Which of the pair of functions are not inverseTo determine if two functions, g(x) and h(x), are inverses of each other, we need to check if the composition of the two functions, g(h(x)) and h(g(x)), both result in x.
A. g(x) = 2 + 9 = 11, h(x) = 1/2x - 9
g(h(x)) = g(1/2x - 9) = 2 + 9 = 11
h(g(x)) = h(11) = 1/2(11) - 9 = -3/2
Since g(h(x)) ≠ x and h(g(x)) ≠ x, the functions g(x) and h(x) are not inverses of each other.
B. g(x) = x - 1, h(x) = x + 1
g(h(x)) = g(x + 1) = (x + 1) - 1 = x
h(g(x)) = h(x - 1) = (x - 1) + 1 = x
Since g(h(x)) = x and h(g(x)) = x, the functions g(x) and h(x) are inverses of each other.
C. g(x) = 3x - 6, h(x) = 1/3x + 2
g(h(x)) = g(1/3x + 2) = 3(1/3x + 2) - 6 = x
h(g(x)) = h(3x - 6) = 1/3(3x - 6) + 2 = x
Since g(h(x)) = x and h(g(x)) = x, the functions g(x) and h(x) are inverses of each other.
D. g(x) = 3x + 4, h(x) = x - 4/3
g(h(x)) = g(x - 4/3) = 3(x - 4/3) + 4 = 3x - 4
h(g(x)) = h(3x + 4) = (3x + 4) - 4/3 = 3x + 8/3
Since g(h(x)) ≠ x and h(g(x)) ≠ x, the functions g(x) and h(x) are not inverses of each other.
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