Answer:
6%
Step-by-step explanation:
ADD root of 5 +2 root of 2 and root of 2 - 5root of 3
Add :
→ (√5 + 2√2) & (√2 - 5√3)
Putting the sign of plus at the place of &.→ (√5 + 2√2) + (√2 - 5√3)
Removing the brackets.
→ √5 + 2√2 + √2 - 5√3
→ √5 + (2 + 1)√2 - 5√3
→ √5 + 3√2 - 5√3
Therefore, the required answer is √5 + 3√2 - 5√3.
y is inversely proportional to x.
When =9, y = 8.
Find y when x= 6.
Answer:
y=12
Step-by-step explanation:
y is inversely proportional to x
y=k/x
k is a constant of proportionality
k=yx
y1x1=y2x2
8(9)=y2(6)
y2=8(9)/6
y2=12
The distance between mumbai and dubai is about 1940 km if the cruising speed of the emirates flight is 595 km/hr how long does it take to reach dubai from mumbai
Answer:
3.26 hours
Step-by-step explanation:
speed = distance / time
595 = 1940 / t
t = 1940 / 595 = 3.26 hours
or
Please help I will give brainliest to whoever gets it correct first!
While this may look like it's a lot to keep track of, its not too bad. We have 7 copies of (-8) in total. The 7 copies due to the exponent of 7. Nice work on getting the correct answer for the second part.
-----------
A further detailed breakdown:
(-8)^3 is the same as (-8)(-8)(-8) so we have three copies here
(-8)^4 is the same as (-8)(-8)(-8)(-8) and we have four copies
Overall, we have 3+4 = 7 copies total.
what is the shape called??
Answer:
This is called a Trapezoidal prism
Number of faces: 5
Number of edges: 9
Number of vertices: 6
Hope this helps!!
At the gift shop, they sell small greeting cards and large greeting cards. The cost of a small greeting card is $ 2.50 and the cost of a large greeting card is $3.85. How much would it cost to get 4 small greeting cards and 5 large greeting cards? How much would it cost to get small greeting cards and y large greeting cards ?
Answer: X-
Step-by-step explanation:
The circumference of the ellipse approximate. Which equation is the result of solving the formula of the circumference for b?
c=2\pi \sqrt{a^2+b^2} /2
Answer:
[tex]b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}[/tex]
Step-by-step explanation:
Given - The circumference of the ellipse approximated by [tex]C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }[/tex]where 2a and 2b are the lengths of 2 the axes of the ellipse.
To find - Which equation is the result of solving the formula of the circumference for b ?
Solution -
[tex]C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }\\\frac{C}{2\pi } = \sqrt{\frac{a^{2} + b^{2} }{2} }[/tex]
Squaring Both sides, we get
[tex][\frac{C}{2\pi }]^{2} = [\sqrt{\frac{a^{2} + b^{2} }{2} }]^{2} \\\frac{C^{2} }{(2\pi)^{2} } = {\frac{a^{2} + b^{2} }{2} }\\2\frac{C^{2} }{4(\pi)^{2} } = {{a^{2} + b^{2} }[/tex]
[tex]\frac{C^{2} }{2(\pi )^{2} } = a^{2} + b^{2} \\\frac{C^{2} }{2(\pi )^{2} } - a^{2} = b^{2} \\\sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}} = b[/tex]
∴ we get
[tex]b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}[/tex]
What percent of 3/4 is 3/8 ? (Round to the nearest whole percent)
I think the answer is 2 percent
hope this is answer
Please help me please
Given circle Q with a measure of SR= 120° and a radius of 9 feet, as shown below.
Determine the arc length of SR. Use mathematics to explain how you determined your answer
Has photo ❤️
Answer:
18.84feet
Step-by-step explanation:
Length of an arc = rtheta
radius r = 9feet
theta = SR= 120°
Convert theta to radians
theta = 120π/180
theta= 2π/3
Length of the arc = 9 * 2π/3
L = 18π/3
L = 6π
L = 6(3.14)
L = 18.84feet
Hence the length of the arc is 18.84feet
FIND THE VALUE OF C PLEASE‼️‼️‼️‼️‼️
Answer:
The answer would be 90° seeing that it is a right angle triangle
Name all the quadrilaterals that have the given attributes
four congruent sides
Answer: A Rhombus has 4 congruent sides .
please help and show work
Answer:
1. 23
2. 8
Step-by-step explanation:
1. 180-157 = 23
2. 15²+x²=(9+x)²
225 +x²=81+18x +x²
225-81=18x
144 = 18x
x = 144/18 = 8
HELP ME PLEASE... WILL GIVE BRAINLIEST. WORTH A LOT OF POINTS
Professor M presented the pair of equations shown below:
y = 6x − 10
y = 2x − 2
Part A: Explain to Professor M how you will solve the pair of equations by using either substitution or elimination. Show all the steps you use and write the solution in (x, y) form.
Part B: If she asked you to graph the two equations, at what point will the lines representing the two equations intersect? Explain how you know this.
Answer:
A) The solution is x = 2 and y = 2
B) The graphs would intersect at the point (2, 2).
Step-by-step explanation:
A)
We start with the system of equations:
y = 6*x - 10
y = 2*x - 2
To solve this, the first step is to isolate one of the variables in one of the equations.
Here we can see that the variable "y" is already isolated in both equations, so we can skip that step.
Now we can "replace" the "y" in one of the equations for the correspondent expression in the other.
we can write:
(6*x - 10) = y
and for the second equation, we know that y = 2*x - 2
So replacing that, we get:
6*x - 10 = 2*x - 2
Now we can solve this for x.
6*x - 2*x = - 2 + 10
4*x = 8
x = 8/4 = 2
Now to find the value of y, we can just input this value of x in any one of the two equations:
y = 6*2 - 10 = 12 - 10 = 2
y = 2*2 - 2 = 4 - 2 = 2
So the solution of the system is:
x = 2, y = 2
B) Because the solution of the system is the ordered pair (2, 2), this means that the ordered pair belongs to the graph of both lines, then we can conclude that these lines will intersect at that point (the one that is common to both lines). Actually, when we have a system of equations, graphing both equations and finding the points where the graphs intersect is one method to estimate the solution of the system.
28 POINTS identify the mathematical model that would best fit the data
A circle has a circumference of
3.14
3.143, point, 14 units.
What is the diameter of the circle?
Answer:
The diameter is 1 unit.
Step-by-step explanation:
The formula for circumference of a circle of diameter d is C = (3.14)d, where 3.14 is a close approximation of π (pi).
Here the circumference is given and is 3.14 units. Because C = 3.14d,
the diameter of this circle is 3.14/3.14, or simply 1 (unit).
f(x) = -8 (5-x), what is the value of f(-4)?
Answer:
f(-4) is basically just saying that you need to use the function given while x = -4.
The function given:
f(x) = -8(5-x)
We see that f(-4) means that x has to be -4, so we can substitute it in:
f(-4) = -8(5-(-4))
f(-4) = -8(9)
f(-4) = -72
Therefore, f(-4) is -72.
what is equivalent to 6.253x10-2
Which expression is equivalent to the expression shown?
(542
258
56
5
204
Answer:
5^8
Step-by-step explanation:
(5^4)^2 = 390625
5^8 = 390625
a ladder reaches the top of a 20 foot building. the ladder is 4.5 feet away from the building. how long is the ladder?
a 24.5 feet
b 19.5 feet
c 20.5 feet
d 3.5 feet
Answer:
C
Step-by-step explanation:
do that with pithagoras:
20² + 4,5² = x²
400 + 20,25 = x²
420,25 = x²
x = [tex]\sqrt{420,25}[/tex]
x ~ 20,5
Letter C: 20,5 feet
The required length of the ladder is given as 20.5 feet. Option C is correct.
What are Pythagorean triplets?In a right-angled triangle, its side, such as the hypotenuse, is perpendicular, and the base is Pythagorean triplets.
Here,
The height of the building is 20 feet,
base length from the bottom of the building to the bottom of the ladder is 4.5 feet,
Let the hypotenuse length of the ladder be x,
Applying the Pythagoras theorem,
x² = 4.5² + 20²
x = √[420.25]
x = 20.5 feet
Thus, the required length of the ladder is given as 20.5 feet. Option C is correct.
Learn more about Pythagorean triplets here:
brainly.com/question/22160915
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2/5 + 2/5
Help my sister
Step-by-step explanation:
2/5+2/5(2+2)/54/50.8stay safe healthy and happy...Answer:
4/5
Step-by-step explanation:
2 + 2 = 4
5 + 5 = 5
4/5
rational number between -1 and 1
Answer:
[tex]\dfrac{-1}{2}[/tex]
Step-by-step explanation:
We need to find ration numbers between -1 and 1.
Multiplying and dividing both -1 and 1 by 2.
[tex]\dfrac{-1\times 2}{2}=\dfrac{-2}{2}[/tex]
and [tex]\dfrac{1\times 2}{2}=\dfrac{2}{2}[/tex]
Now, the rational number between -2/2 and 2/2 is [tex]\dfrac{-1}{2}[/tex].
find the equation of the parabola with its focus at (5,0) and it’s directrix y=2
Answer:
Option A
Step-by-step explanation:
From the question given in the picture attached,
Directrix of the parabola → y = 2
Focus of the parabola → (-5, 0)
Since, focus is below the directrix, parabola will open open downwards.
Equation of the parabola will be in the form of,
y - k = -4p(x - h)²
Here, (h, k) is the vertex of the parabola
p = Distance between vertex and focus or distance between vertex and directrix
Since, distance between vertex and focus = Distance between vertex and directrix
Therefore, vertex of the parabola → (-5, 1)
Now distance (p) between vertex (-5, 0) and focus (-5, 1) = 1 unit
By substituting these values in the equation,
y - 1 = -4(1)[x - (-5)]²
y - 1 = -4(x + 5)²
y = -4(x + 5)² + 1
Option A will be the answer.
Answer the question right for brainliest
Answer:
3 to the power 9 is the answer
Answer:
[tex] 3^9 [/tex]
Step-by-step explanation:
[tex] 3^8 \times 3 = 3^8 \times 3^1 = 3^{8 + 1} = 3^9 [/tex]
Lesson 4: If - Else is covered in the video below. Click play on the first video to start the lesson. This lesson includes programming, so be sure to pause the videos to edit and write code in the programming environment when prompted.
Download the slides used in the videos below if you'd like to follow along.
Wait… what lesson? I am confused :/
Pls help will mark brainliest
Answer:
[tex]x\geq 2[/tex]
Step-by-step explanation:
The parent function, [tex]y=\sqrt{x}[/tex], has a domain of [tex]x\geq 0[/tex] or [tex][0, \infty)[/tex], because the value under the radical cannot be less than 0 (we cannot take the square root of a negative number). Thus, by setting everything inside the radical to 0, we can find the domain of this function:
[tex]x-2\geq 0,\\x\geq 2[/tex]
Thus this domain of this function is:
As an inequality: [tex]x\geq 2[/tex] (desired in problem)
In interval notation: [tex][2, \infty)[/tex]
hey! i’ll give brainliest please help
!!!!!!!!!!!!!!!!!!!!!!!HELP!!!!!!!!!!!!!!!!!!!!!!!!!! please solve
Answer:
24,000 for 20 years
Step-by-step explanation:
Because 4% of 100K=4K
Add them is 24K
What is the missing number in the pattern below?1, 4, 2, ______, 3
Graph the equation y = x2 + 8x + 12 on the accompanying set of axes. You must
plot 5 points including the roots and the vertex. Using the graph, determine the
vertex of the parabola.
Answer:
Step-by-step explanation:
Roots: set y = x^2 + 8x + 12 = 0 and solve for x: x + 6 = 0, so x = -6 is one root. The other is x = -2. The corresponding points are (-6, 0) and (-2, 0).
y-intercept: Let x = 0. Then y = 12. The y-intercept is (0, 12).
Axis of symmetry: x = -b / (2a) => x = -8/(2*1) = -4: x = -4
Vertex y-value: evaluate y at x = - 4: (-4)^2 + 8(-4) + 12 = -4: (-4, -4)
Arbitrarily chosen x value: x = 1 => 1^2 + 8(1) + 12 = 21: (1, 21)
The five points are: (-6, 0) and (-2, 0), (0, 12), (-4, -4), (1, 21). The vertex is (-4, -4). The parabolic graph opens UP.
The vertex of the parabolic equation y = x² + 8x + 12 will be at (-4, -4).
What is the equation of the parabola?Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
The equation is given below.
y = x² + 8x + 12
Conver the equation into a vertex form. Then we have
y = x² + 8x + 12
y = x² + 8x + 16 - 16 + 12
y = (x + 4)² - 4
The vertex of the parabolic equation y = x² + 8x + 12 will be at (-4, -4).
The graph is given below.
More about the equation of the parabola link is given below.
https://brainly.com/question/20333425
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