In a survey of 2000 people who owned a certain type of car, 1200 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
The percentage of people who are satisfied with the car are 60%.
What is percentage?In mathematics →
a percentage is a number or ratio expressed as a fraction of 100.it is often denoted using the percent sign "%".Given is that in a survey of 2000 people who owned a certain type of car, 1200 said they would buy that type of car again.
The percentage of people who are satisfied with the car are -
{x}% = (1200/2000) x 100
{x}% = (12/20) x 100
{x}% = 12 x 5
{x}% = 60
Therefore, the percentage of people who are satisfied with the car are 60%.
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If (3, 7) and (7, −3) are the endpoints of the segment, find the equation of the perpendicular bisector of .
Answer:
[tex]y = \frac{2}{5}x[/tex]
Step-by-step explanation:
Concepts⭐Perpendicular bisector of a segment
another line or segment that splits the segment in half and forms 90 degree anglesthe perpendicular bisector cuts through the midpoint of the segmentthe perpendicular has a slope that is the opposite reciprocal of the segment⭐Midpoint formula
[tex](\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})[/tex][tex](x_1,y_1)[/tex] is one coordinate on the line[tex](x_2,y_2)[/tex] is another coordinate on the line⭐Point-slope form
[tex]y-y_1 = m(x-x_1)[/tex]m is the slope[tex](x_1,y_1)[/tex] is a coordinate on the linea way to write the equation of a line⭐Slope
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex][tex](x_1,y_1)[/tex] is a coordinate[tex](x_2, y_2)[/tex] is another coordinate⭐Slope-intercept form
[tex]y = mx + b[/tex]m is the slopeb is the y-intercept (the y-value for when x=0)StrategyFind the midpoint of the given segmentFind the slope of the given segmentWrite the equation of the bisector equation in point-slope formSubstitute the opposite-reciprocal of the given segment's slope into the bisector equationSubstitute the midpoint of the given segment into the bisector equationExpand & simplify the bisector equation to convert it into slope-intercept formWorking1. Find the midpoint of the given segment
[tex]midpoint = (\frac{(x_1+x+2)}{2}, \frac{(y_1+y_2)}{2})[/tex]
[tex](x_1,y_1)[/tex] = (3,7)
[tex](x_2,y_2)[/tex] = (7,-3)
∴ midpoint [tex](\frac{3+7}{2}, \frac{7+(-3)}{2})\\= (\frac{10}{2}, \frac{4}{2})\\= (5,2)[/tex]
2. Find the slope of the given segment
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
[tex](x_1,y_1)[/tex] = (3,7)
[tex](x_2,y_2)[/tex] = (7,-3)
∴ slope [tex]m = \frac{-3-7}{7-3}\\= \frac{-10}{4}\\= \frac{-5}{2}[/tex]
3. Write the equation of the bisector equation in point-slope form
[tex]y - y_1 = m(x-x_1)[/tex]
4. Substitute the opposite-reciprocal of the given segment's slope into the bisector equation
The slope of the given segment is -5/2.
Therefore, the opposite-reciprocal of the given segment's slope is 2/5.
[tex]y - y_1 = \frac{2}{5}(x-x_1)[/tex]
5. Substitute the midpoint of the given segment into the bisector equation
midpoint = (5, 2)
[tex]y -2 = \frac{2}{5}(x-5)[/tex]
6. Expand & simplify the bisector equation to convert it into slope-intercept form
We need to convert [tex]y -2 = \frac{2}{5}(x-5)[/tex] into [tex]y = mx + b[/tex] form.
[tex]y -2 = \frac{2}{5}x - \frac{2 * -5}{5}[/tex] . . . . . . . distribute the 2/5 into the parentheses
[tex]y -2 = \frac{2}{5}x - 2[/tex] . . . . . . . compute
[tex]y = \frac{2}{5}x[/tex] . . . . . . add 2 to the LHS and RHS to isolate y
⭐if this response helped you, please mark it the "brainliest"!⭐
A pendulum of length 1m and period 2.01s is placed at the top of Mount Everest
having an altitude of 8849m. Calculate the value of ‘g’ at that point.
Answer: A pendulum of length 1m and period 2.01s is placed at the top of Mount Everest having an altitude of 8849m. Calculate the value of 'g' at that point.
The period of this pendulum can be solved using the formula shown in the picture below. T is the period in seconds; L is the length in meters and g is the acceleration due to gravity which is equal to 9.81 m/s²near the equator.
T = 2 × π × (square root of 1.00 m / 9.81 m/s²)
T = 2 * 3.1416 * (square root of 0.101936799)
T = 6.2832 * 0.319275428
T = 2.00 seconds
The period of this pendulum correct to 3 significant figures is 2.00 seconds.
The frequency of this pendulum is solved by the formula f = 1/T
f = 1/2.00 seconds
f = 0.500 hertz
Answer: 9.76 m/s^2
Step-by-step explanation:
What is the theoretical probability that an even number will be rolled on a number cube?
Answer:
out of 36 rolls, 15 were positive. 15/36 simplified is 5/12
Answer:
15/36 is the probability there i believe i might be wrong
Step-by-step explanation:
PLEASE HELP I HAVE NO CLUE WHAT IM DOING. Parents finna ground me if I don't do this tonight.
Answer:
First find x and y at given parameters:
x = (v₀cosθ)t = (123 cos60°)t = 61.5ty = h + (v₀sinθ)t - 16t² = 0 + (123 sin 60°)t - 16t² = 106.52t - 16t²Maximum height is at vertex. Time is:
t = -106.52/-32 = 3.3 secondsMaximum height is:
y = 106.52*3.3 - 16(3.3)² = 177.3 ftHorizontal distance:
x = 61.5*3.3 = 203 feetTime to hit the ground:
106.52t - 16t² = 016t = 106.52 (t = 0 is discounted)t = 106.52/16t = 6.7 secondsif you Decrease £200 by 12.5% what do you get?
Answer:
175
Step-by-step explanation:
Find how much is left by multiplying 200 by 0.875, since this will give you the remaining 87.5%:
200(0.875)
= 175
So, the answer is 175.
I don’t understand and also any fake answers will be reported
The first graph shows the correct location of the points.
Consider the line =−−8x6y1.
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?
Answer:
Below
Step-by-step explanation:
Well I can't really see the equation but I can tell you how to do it.
Parallel slopes are the same slope as the equation.
For example, y = mx + b
The slope of a line parallel to it is m
Perpendicular slopes are the opposite reciprocal as the equation.
For example, y = mx + b
The slope of a line perpendicular to it is[tex]-\frac{1}{m}[/tex]
Answer:
parallel: -8
perp: +1/8
Step-by-step explanation:
parallel lines have the same slopes
perp lines have opposite reciprocal slopes
what is 9.5 is what % of 50 i have a test tomorrow 1/11/23 and I dont understand it
The percentage statement is 9.5 is 19% of 50
How to determine the percentageFrom the question, we have the following parameters that can be used in our computation:
9.5 is what % of 50
Complete the blank with x
So, we have the following representation
9.5 = x% of 50
So, we have
9.5 = x% * 50
Divide both sides by 50
0.19 = x%
Multiply both sides by 100
So, we have
x = 19
Hence, the solution is 19
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Find the lope-intercept equation of the line that pae through (1,-3) and ha a lope of -1/4
The slope intercept form of the equation is
y = -1/4x -11/4
What is Slope Intercept form ?One of the most popular ways to describe a line's equation is in the slope intercept form of a straight line. When the slope of the straight line and the y-intercept are known, the slope intercept formula may be used to get the equation of a line ( the y-coordinate of the point where the line intersects the y-axis). The equation of a line is the equation that each point on the line fulfills.
The slope intercept form is a technique for figuring out a straight line's equation in the coordinate plane. Any point's coordinates on a straight line must fulfill a certain relation, which is known as the equation of a straight line.
Any location that is not on the line will not fulfill the coordinates.
This equation's solution is simple to find. A straight line's slope, or angle of inclination from the x-axis, and the intercept it makes with the y-axis are both necessary to determine the slope intercept form of the line.
The line passes through (1,-3)
slope = -1/4
The equation of the line
y = mx + c
here m is the slope and c is the intercept.
putting the point and slope in the equation
-3 = -1/4 *1 + c
⇒ c = -11/4
So the slope intercept form of the equation is
y = -1/4x -11/4
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Of the last 20 balloons sold at a party store, 2 were red. What is the experimental probability that the next balloon sold will be red? Write your answer as a fraction or whole number.
I dont know sorry 2/4 or 18
solve -2 ( x+2)=-12 help me plsssssssssssssssss
Answer:
x = 4
Step-by-step explanation:
-2 ( x+2)=-12
-2x - 4 = -12
-2x = -8
x = 4
What is sec 0 when tan 0 = V3? Đ. (1, 0) sec 0 = [?]
Answer:
secθ = - 2
Step-by-step explanation:
Using the identity
sec²θ = 1 + tan²θ
= 1 + ([tex]\sqrt{3}[/tex] )² = 1 + 3 = 4 ( take the square root of both sides )
secθ = ± [tex]\sqrt{4}[/tex] = ± 2
Since secθ < 0 in the third quadrant , then
secθ = - 2
Given right triangle ABC with altitude BD drawn to hypotenuse
AC. If AC = 27 and DC = 3, what is the length of BC?
27
D
3
B
X
Answer:
x=9
Step-by-step explanation:
Answer: 9
Step-by-step explanation:
i got it right
7 1/2 / (4 1/2 - 5 1/8) =
Answer:
Negative twelve aka -12
Answer:
-12
Step-by-step explanation:
15/2 ÷ (9/2 - 41/8)
= 15/2 ÷ (36/8 - 41/8)
= 15/2 ÷ (-5/8)
= 15/2 × (-8/5)
= -120/10 or -12
Can someone please help I need the answers please!!!!!!!!!!!!
Given that AB is a line segment and the angle
y
= 67°, work out the value of the angle marked
x
Answer:
x = 113°
Step-by-step explanation:
AB is a line segment and hence it is a straight line which means it is a straight angle, so it is 180° .
y = 67°
x = ?
So, x + y = AB
=> x + 67° = 180°
=> x = 180° - 67°
=> x = 113°
Therefore, x = 113°
Hope it helps :)
PLEASE HELP!!! WILL GIVES BRAINIEST!! PLEASE SHOW YOUR WORK!!
Answer:
0.0558
Step-by-step explanation:
3% is out of hundred so we multiply
3%×1.86=0.0558
Checking:
0.0558÷1.86=0.03
0.03=3%
2) The function f(t) - 5t2 + 200 + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?
Answer:
8 seconds
Step-by-step explanation:
if you graph the function, the difference between the zeros is 8
Please help don't ignore
Determine if the number below is written in correct scientific notation, why or why not.
[tex]56.987 \times {10}^{5} [/tex]
No links
Don't answer if your not going to help
Answer:
a×10⁰ where (a the number) should always be less than 10
hope it helps :)
Is the following graph proportional or non proportional?
PLS HELP:((
Answer:
Proportional
Step-by-step explanation:
Proportional, because the graph goes through (0, 0). If the line crossed the y-axis elsewhere, the function would NOT be proportional.
What will be the output of 7 by 2?
The resultant output of the given question is 7 by 2 is 14.
This is because 7 multiplied by 2 is equal to 14
When you multiply two numbers, the result is the product of the two numbers. In this case, 7 multiplied by 2 is equal to 14.
Mathematicians use the process of multiplication to calculate the product of two or more given numbers. It is a fundamental mathematical operation in maths that is frequently utilised in everyday life. When we need to combine groups of similar sizes or values , we utilise multiplication.
Hence the correct answer to the given question is 14 .
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6 = x +2y solve for y
Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
Given:
The given quadratic equation is:
[tex]12a^2+9a+7=0[/tex]
To find:
The solution for the given quadratic equation in simplest form by using the quadratic formula.
Solution:
Consider a quadratic equation is defined as [tex]ax^2+bx+c=0[/tex], then the quadratic formula is:
[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The given quadratic equation is:
[tex]12a^2+9a+7=0[/tex]
We have, [tex]a=12,b=9,c=7[/tex]. Using the quadratic formula, we get
[tex]x=\dfrac{-(9)\pm \sqrt{(9)^2-4(12)(7)}}{2(12)}[/tex]
[tex]x=\dfrac{-9\pm \sqrt{81-336}}{24}[/tex]
[tex]x=\dfrac{-9\pm \sqrt{-255}}{24}[/tex]
[tex]x=\dfrac{-9\pm i\sqrt{255}}{24}[/tex] [tex][\because \sqrt{-a}=i\sqrt{a}][/tex]
The solutions of the given equations are [tex]x=\dfrac{-9-i\sqrt{255}}{24}[/tex] and [tex]x=\dfrac{-9+i\sqrt{255}}{24}[/tex].
Hence, the correct option is B.
PLEASE I NEED THIS!! Which quadrilateral(s) have the same attributes as a rhombus
Answer:
The correct answer is square and parallelogram
Explanation:
If you turn the rhombus around it will turn into a squareWhat is the 2 step rule in math?
The Two steps equation in mathematics are the equations that can be solved within exactly two steps.
What is a Two Step Equation ?
The Two Step Equation are the algebraic problems that just take two steps to solve. It is a linear equation in one variable.
When solving the two step equation, we have to perform operation on both sides of the equation .
For Example : Solve [tex]2x+6=12[/tex] ;
Step1 : we Subtract -6 from both sides to isolate variable x.
⇒ [tex]2x + 6 - 6 = 12 - 6[/tex]
⇒ [tex]2x = 6[/tex]
Step2 : We Divide both the sides of equation by 2 and solve for x.
⇒ [tex]\frac{2x}{2} =\frac{6}{2}[/tex]
⇒ [tex]x = 3[/tex] ;
Therefore , the equation is solved in two steps .
The given question is incomplete , the complete question is
What is the two step equation in math ?
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87.5 - 23.4 *
O 64.1
O 110.9
054.1
Answer:
Hey mate......
Step-by-step explanation:
This is ur answer....
1st Option : 64.1Hope it helps!
Brainliest pls!
Follow me! ;)
Are the two triangles similar? Why or why not?
Answer:
yes
Step-by-step explanation:
cause they are both triangles duhhhh
Answer:
yes bc they both make a 90* TURN
choose sss, sas, or neither to compare these two triangles
Answer:
SSS
Step-by-step explanation:
We have three pairs of corresponding, congruent sides. Therefore, the SSS Postulate can be used to prove the two triangles congruent.
What is the perimeter of a square with an area of 256
cm2?
a. 16 cm
b. 32 cm
C. 64 cm
d. 128 cm
Answer:
C
Step-by-step explanation:
Since we know that squares have all equal sides the area of a square is just a side². So, we would square root 256 in order to find one side. And we know that there are 4 sides of a square so 16+16+16+16= 64. so the answer is C