Answer:
14000 lbs.
Step-by-step explanation:
7 tons = 14000 lbs
1 ton = 2000 lbs.
7 x 2000 = 14000 Lbs.
Match each spherical volume to the largest cross sectional area of that sphere
Answer:
Part 1) [tex]324\pi\ units^{2}[/tex] ------> [tex]7,776\pi\ units^{3}[/tex]
Part 2) [tex]36\pi\ units^{2}[/tex] ------> [tex]288\pi\ units^{3}[/tex]
Part 3) [tex]81\pi\ units^{2}[/tex] ------> [tex]972\pi\ units^{3}[/tex]
Part 4) [tex]144\pi\ units^{2}[/tex] ------> [tex]2,304\pi\ units^{3}[/tex]
Step-by-step explanation:
we know that
The largest cross sectional area of that sphere is equal to the area of a circle with the same radius of the sphere
Part 1) we have
[tex]A=324\pi\ units^{2}[/tex]
The area of the circle is equal to
[tex]A=\pi r^{2}[/tex]
so
[tex]324\pi=\pi r^{2}[/tex]
Solve for r
[tex]r^{2}=324[/tex]
[tex]r=18\ units[/tex]
Find the volume of the sphere
The volume of the sphere is
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
For [tex]r=18\ units[/tex]
substitute
[tex]V=\frac{4}{3}\pi (18)^{3}[/tex]
[tex]V=7,776\pi\ units^{3}[/tex]
Part 2) we have
[tex]A=36\pi\ units^{2}[/tex]
The area of the circle is equal to
[tex]A=\pi r^{2}[/tex]
so
[tex]36\pi=\pi r^{2}[/tex]
Solve for r
[tex]r^{2}=36[/tex]
[tex]r=6\ units[/tex]
Find the volume of the sphere
The volume of the sphere is
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
For [tex]r=6\ units[/tex]
substitute
[tex]V=\frac{4}{3}\pi (6)^{3}[/tex]
[tex]V=288\pi\ units^{3}[/tex]
Part 3) we have
[tex]A=81\pi\ units^{2}[/tex]
The area of the circle is equal to
[tex]A=\pi r^{2}[/tex]
so
[tex]81\pi=\pi r^{2}[/tex]
Solve for r
[tex]r^{2}=81[/tex]
[tex]r=9\ units[/tex]
Find the volume of the sphere
The volume of the sphere is
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
For [tex]r=9\ units[/tex]
substitute
[tex]V=\frac{4}{3}\pi (9)^{3}[/tex]
[tex]V=972\pi\ units^{3}[/tex]
Part 4) we have
[tex]A=144\pi\ units^{2}[/tex]
The area of the circle is equal to
[tex]A=\pi r^{2}[/tex]
so
[tex]144\pi=\pi r^{2}[/tex]
Solve for r
[tex]r^{2}=144[/tex]
[tex]r=12\ units[/tex]
Find the volume of the sphere
The volume of the sphere is
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
For [tex]r=12\ units[/tex]
substitute
[tex]V=\frac{4}{3}\pi (12)^{3}[/tex]
[tex]V=2,304\pi\ units^{3}[/tex]
angle a measures 110 degrees angle b measures 72 degrees the measure of angle D is
Answer:
Angle D is 70, I believe
Angle D would be supplementary to A
Simplify the expression. Write the answer using scientific notation. (4 × 108)2 16 × 1016 1.6 × 1016 8 × 1017 1.6 × 1017
Answer:
[tex]\large\boxed{\bigg(4\times10^8\bigg)^2=1.6\times10^{17}}[/tex]
Step-by-step explanation:
[tex]\text{The sicientific notation:}\ a\times10^k,\ \text{where}\ 1\leq a<10\ \text{and}\ k\in\mathbb{Z}.\\\\\bigg(4\times10^8\bigg)^2\qquad\text{use}\ (ab)^n=a^nb^n\\\\=4^2\times\left(10^8\right)^2\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=16\times10^{16}\ -\ \text{this is not a scientific notation yet}\ a=16>10\\\\=1.6\times10\times10^{16}\qquad\text{use}\ a^n\times a^m=a^{n+m}\\\\=1.6\times10^{17}[/tex]
Answer:
1.6 x 1017
Step-by-step explanation:
Which table represents an arithmetic sequence?
Answer:
The third table is an arithmetic sequence . Its difference is -1.4.
Step-by-step explanation:
In an arithmetic sequence the difference between one term and the next is a constant
8.7 - 1.4 = 7.3
7.3 - 1.4 = 5.9
5.9 - 1.4 = 4.5
4.5 - 1.4 = 3.1
Answer:3rd table
Step-by-step explanation:
Isosceles triangle ABC contains angle bisectors BFAD, and CE that intersect at X.
If BA BC and m2BCA = 44", what is m2CXA?
136
132
68
44
Answer:68
Step-by-step explanation:
In an isosceles triangle with angle BCA equal to 44 degrees, the measure of angle CXA is also 44 degrees because the sum of the two bisected base angles is 44 degrees.
Explanation:In an Isosceles Triangle, the base angles are always equal. Therefore, if m∠BCA (angle BAC) is 44 degrees, then m∠ABC is also 44 degrees.
Because BFAD and CE are bisectors, they split ∠ABC and ∠ACB into two equal angles. So, ∠ABF (or ∠ABX) and ∠ACD (or ∠ACX) are each 22 degrees.
m∠CXA is the sum of ∠ABX and ∠ACX. Therefore, m∠CXA is 22 degrees + 22 degrees = 44 degrees.
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The graph of a line passes through the two points (-2, 1) and (2, 1). What is the equation of the line written in general
form?
Answer:
y-1=0
Step-by-step explanation:
I'm going to write into y=mx+b form first.
m is the slope and b is the y-intercept.
First step is to find the slope.
To find the slope given two points you can use m=(y2-y1)/(x2-x1).
Instead, I like to line up the points and subtract vertically. Then put 2nd difference on top of 1st difference.
Let's do that:
(-2,1)
- (2,1)
--------
-4, 0
The slope is 0/-4=0. That means the line is horizontal and is of the form y=a number.
If you look at the points, you see the y-coordinate doesn't change. The y-coordinate is always 1. So the equation for the line is y=1.
If we subtract 1 on both sides we get y-1=0.
So general form is Ax+By+C=0 which is why I decide to move the one on the other side of the equation.
If I had noticed earlier that the y-coordinates were the same I would have stopped and say y=whatever y-coordinate I seen. However, I really didn't take notice of that until after I found the slope.
A rectangular tennis court is 8 m wide and 20 m long. A scale plan is drawn
with a width of 4 cm. If the scale plan is an accurate model, what is its
length? (Hint: 1 m is 100 cm)
Please answer
Answer:
The length in the draw is 10 cm
Step-by-step explanation:
step 1
Find the scale plan
Divide the width in the draw by the width in the real
so
[tex]\frac{4}{8}=\frac{1}{2}\frac{cm}{m}[/tex]
That means----> 1 cm in the draw is equal to 2 m in the real
step 2
Find the length in the draw
using proportion
[tex]\frac{1}{2}\frac{cm}{m}=\frac{x}{20}\frac{cm}{m}\\ \\x=20/2\\ \\x=10\ cm[/tex]
Factor completely x2 − 10x + 25. (2 points)
Answer:
(x-5)(x-5)
Step-by-step explanation:
Ok... This ones actually pretty simple.
So all you have to do is find 2 numbers that add up to -10, and multiply to 25. You will quickly realize that the only 2 numbers that do that are -5 and -5. Then, all you have to do is write the now factored equation. (x-5)(x-5)
There are 2 ways to check your work. The first is to FOIL (first, inside, outside, last). This should get you back to your original equation
The second way to do it is to plug it into a graphing program. If you graph your factored equation and your original equation, they should be the same!
I hope this helps!
If you have any other questions just feel free to ask me.
For this case we must factor the following expression:
[tex]x ^ 2-10x + 25[/tex]
For this, we must find two numbers that when multiplied give 25 and when added to -10.
These numbers are -5 and -5:
[tex]-5-5 = -10\\-5 * -5 = 25[/tex]
Then, the factorization is given by:
[tex](x-5) (x-5)\\(x-5) ^ 2 [/tex]
Answer:
[tex](x-5) ^ 2 [/tex]
Determine the axis of symmetry for the function f(x) = -2(x + 3)2 – 5.
Ox=3
Ox=-3
Ox=5
Ox=-5
Answer:
x=-3
Step-by-step explanation:
f(x) = -2(x + 3)^2 – 5
This quadratic is in the form
f(x) = a(x - h)^2 + k
f(x) = -2(x - -3)^2 + - 5
Where (h,k) is the vertex
(-3,-5)
We know the axis of symmetry is along the vertex
x=h is the axis of symmetry
x=-3
The axis of symmetry of the function f(x) = -2 (x + 3)² - 5 is x = -3.
What is Line of Symmetry?Line of symmetry of a figure or a shape is the line which divides the figure or shape in to equal and symmetrical parts.
This line is also called as axis of symmetry.
It is sometimes also called as mirror line since the line divides in to parts which looks like mirror images.
The given equation,
f(x) = -2 (x + 3)² - 5
f(x) = -2x² - 12x - 18 - 5
f(x) = -2x² - 12x - 23
For a quadratic function of the form, f(x) = ax² + bx + c, the axis of symmetry is,
x = -b/2a
Here,
x = 12 / (2 × -2) = -12/4 = -3
Hence the axis of symmetry is x = -3.
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Classify the following triangle. Check all that apply.
Answer:
right, isosceles
Step-by-step explanation:
The lines on the two sides means that they are congruent.
Two sides being equal means that the triangle is isosceles.
The box in the corner means that the angle is equal to 90 degrees
A ninety degree angles means the triangle is a right triangle
Lucy earns $5.50 per hour at a local restaurant. She earns time and a half for each hour she works on a holiday. Lucy worked sevenseven hours each day for five five days, then worked for four hours on a holiday. How much did she earn for that week?
Lucy earned a total of $225.50 for the week by combining her regular and holiday earnings.
Lucy's earnings for the week:
Regular earnings: 7 hours/day * 5 days * $5.50/hour = $192.50Holiday earnings: 4 hours * $5.50/hour * 1.5 = $33.00Total earnings for the week: $192.50 + $33.00 = $225.50IXL QUESTION
THANKS FOR ANSWERING
Answer:
Should be 1st number, 3rd number, 2nd number
Step-by-step explanation:
Mixed fraction has a 3 in it, which means its over 100%. 6/20 is 30%, and the other one is negative.
Answer:
3 32/40, 6/20, - 2/10
Step-by-step explanation:
3 32/40, -2/10 , 6/20
We want greatest to least
Positive numbers are greater than negative numbers, so the negative number is the smallest
Since there is only one number with a whole number attached and none of the numbers are improper fractions (numerator larger than denominator) it would be the largest
3 32/40, 6/20, - 2/10
A summer camp cookout is planned for the campers and their families. There is room for 200 people. Each adult costs $4, and each camper costs $3. There is a maximum budget of $750. Write the system of inequalities to represent this real-world scenario, where x is the number of adults and y is the number of campers.
A.
[tex]x + y \leqslant 200 \\ 4x + 3y \leqslant 750[/tex]
B.
[tex]x + y \leqslant 750 \\ 4x + 3y \leqslant 200[/tex]
C.
[tex]x + y \leqslant 200 \\ 3x + 4y \leqslant 750[/tex]
D.
[tex] x + y \leqslant 750 \\ 3x + 4y \leqslant 200[/tex]
Answer:
[tex]A.\\\\x+y\leq200\\\\4x+3y\leq750[/tex]
Step-by-step explanation:
x - number of adults
y - number of campers
The room for 200 people: x + y ≤ 200
Each adult costs $4, and each camper costs $3: 4x and 3y
A maximum budget of $750: 4x + 3y ≤ 750
The correct option for the given scenario is option A, which includes two inequalities: one for the capacity constraint (x + y ≤ 200) and one for the budget constraint (4x + 3y ≤ 750), where x is the number of adults and y is the number of campers.
The correct system of inequalities to represent the scenario where x is the number of adults and y is the number of campers, with a room capacity for 200 people and a maximum budget of $750, is:
x+y≤2004x+3y≤750This corresponds to option A, where the first inequality represents the capacity constraint and the second inequality represents the budget constraint.
A new video game is expected to sell 120 coples the first hour at a local game store. After that, the sales will follow the function s(x) = 15(x - 1) where x is the
number of hours. What is the function that shows total sales, including the first hour?
Answer:
The function that shows total sales, including the first hour is
[tex]S(x)=15(x-1)+120[/tex] or [tex]S(x)=15x+105[/tex]
Step-by-step explanation:
Let
s(x) -----> function that represent the sales after the first hour
S(x) ----> function that represent the total sales (including the first hour)
x -----> the number of hours
we know that
The linear equation that represent the total sales is equal to
[tex]S(x)=s(x)+120[/tex] -----> equation A
we have
[tex]s(x)=15(x-1)[/tex] -----> equation B
substitute equation B in equation A
[tex]S(x)=15(x-1)+120[/tex]
[tex]S(x)=15x-15+120[/tex]
[tex]S(x)=15x+105[/tex]
Therefore
The function that shows total sales, including the first hour is
[tex]S(x)=15(x-1)+120[/tex] or [tex]S(x)=15x+105[/tex]
PLEASE HELP!!!!!
A button with a diameter of 6 cm is made from a circular banner. The scale factor of the reduction was 1/6 . What was the diameter of the original banner? Why
Answer:
36cm
Step-by-step explanation:
If the current banner is a reduction of 1/6, then you have to expand it by the reciprocal. 6/1 *6 =36.
Answer:
36 cm.
Step-by-step explanation:
It is given that A button with a diameter of 6 cm is made from a circular banner. The scale factor of the reduction was 1/6 .
Let [tex]d[/tex] be the diameter of the original banner.
The scale factor of the reduction was 1/6 . It means,
[tex]\text{New diameter}=\frac{1}{6}\times \text{Original diameter}[/tex]
[tex]6=\frac{1}{6}\times d[/tex]
Multiply both sides by 6.
[tex]36=d[/tex]
Hence, the diameter of the original banner is 36 cm.
Find the sum: (3x2 + 5x – 8) + (5x2 - 13x - 5)
OA. 8x2 + 8x - 13
WWW
OB. 8x2 - 8x + 13
C. 8x2 - 8x - 13
D.
8x2 - x - 13
Answer:
The correct option is C
Step-by-step explanation:
The expressions are:
=(3x²+5x-8)+(5x²-13x-5)
Open the parenthesis
=3x²+5x-8+5x²-13x-5
Now solve the like terms:
=8x²-8x-13
Thus the correct option is C....
An equation is shown below: 4(x − 3) − 5(x + 1) = 3 Which statement shows a correct next step in solving the equation? The equation can become 4x − 3 − 5x + 1 = 3 by applying the associative property of multiplication. The equation can become 4x − 3 − 5x + 1 = 3 by applying the distributive property. The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property. The equation can become 4x − 12 − 5x − 5 = 3 by applying the associative property of multiplication.
Answer : The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Answer:
The equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
Step-by-step explanation:
An equation is shown below:
4(x − 3) − 5(x + 1) = 3
This equation shows, the equation can become 4x − 12 − 5x − 5 = 3 by applying the distributive property.
The distributive property is when you multiply the sum in the equation and multiply each number or addend in the equation.
Examine the box and whisker plot below. Identify the median of the data set.
85
90
77
97
Answer:
90
Step-by-step explanation:
90 is where the middle line is
please mark brainliest :)
Answer:
90.
Step-by-step explanation:
The median is the point near the middle of the box. It is 90.
Can someone explain this?
Answer:
The amount of salads sold that day were 93.
Step-by-step explanation:
Information to note:
Salad = $6.50
Drinks = $2.00
Total amount sold = 209
Total amount of money gained = $836.50
Set the system of equation. Let salad = s, and drinks = d
s + d = 209
6.50s + 2d = 836.50
Isolate the variable s in the first equation. Note the equal sign, what you do to one side, you do to the other. Subtract d from both sides:
s + d = 209
s + d (-d) = 209 (-d)
s = 209 - d
Plug in the new expression for s into the second equation:
s = 209 - d
6.50s + 2d = 836.50
6.50(209 - d) + 2d = 836.50
Simplify. Isolate the variable, d. First, distribute 6.50 to all terms within the parenthesis:
6.50(209 - d) = 1358.5 - 6.50d
1358.5 - 6.50d + 2d = 836.50
Simplify. Combine like terms:
1358.5 + (-6.50d + 2d) = 836.50
1358.5 - 4.50d = 836.50
Isolate the variable, d. Note the equal sign, what you do to one side, you do to the other.
Subtract 1358.5 from both sides:
1358.5 (-1358.5) - 4.50d = 836.50 (-1358.5)
-4.50d = 836.50 - 1358.50
-4.50d = -522
Isolate the variable, d. Divide -4.50 from both sides:
(-4.50d)/-4.50 = (-522)/-4.50
d = -522/-4.50
d = 116
The amount of drinks sold were 116.
Plug in 116 for d in one of the equations:
s + d = 209
s + (116) = 209
Isolate the variable, s. Subtract 116 from both sides:
s + 116 (-116) = 209 (-116)
s = 209 - 116
s = 93
The amount of salads sold that day were 93.
~
Use the functions to answer the question.
f(x)=x^2+13 g(x)=12x−14
At what values of x do the functions intersect?
Select all that apply.
9
3
−3
−9
Answer:
3 and 9
if f(x)=x^2+13 and g(x)=12x-14
Step-by-step explanation:
So when we are looking for the intersection of two functions, we are trying to figure out when they are the same. When you think same, you should think equal (=).
So we want to find when f(x)=g(x) for x.
f(x)=g(x)
[tex]x^2+13=12x-14[/tex]
Let's get everything to one side.
Subtracting 12x and adding 14 to both sides.
[tex]x^2+13+14-12x=0[/tex]
I'm going to reorder the left hand side and also simplify the 13+14 part:
[tex]x^2-12x+27=0[/tex]
Now since the coefficent of x^2 is just 1 our job is to find two numbers that multiply to be 27 and add up to be -12.
Those numbers are -3 and -9 since -3(-9)=27 and -3+(-9)=-12.
So the factored form of our equation is
[tex](x-3)(x-9)=0[/tex]
Since the product is 0, then at least one of the factors must be 0.
So we want to solve both x-3=0 and x-9=0.
x-3=0 can be solved by adding 3 on both sides. This gives us x=3.
x-9=9 can be solved by adding 9 on both sides. This gives us x=9.
The intersection of f and g happens at x=3 or x=9.
Answer:
x = 9 and x = 3
Step-by-step explanation:
Given
f(x) = x² + 13 and g(x) = 12x - 14
To find the points of intersection equate the 2 functions, that is
f(x) = g(x)
x² + 13 = 12x - 14 ← subtract 12x - 14 from both sides
x² - 12x + 27 = 0 ← in standard form
Consider the factors of the constant term ( + 27) which sum to give the coefficient of the x- term ( - 12)
The factors are - 3 and - 9, since
- 3 × - 9 = + 27 and - 3 - 9 = - 12, hence
(x - 3)(x - 9) = 0
Equate each factor to zero and solve for x
x - 3 = 0 ⇒ x = 3
x - 9 = 0 ⇒ x = 9
The functions intersect at x = 3 and x = 9
How is the graph of y= (x-1)^2-3 transformed to produce the graph of y= 1/2(x+4)^2?
The graph of y=(x-1)^2-3 can be transformed to the graph of y=1/2(x+4)^2 by stretching it vertically and shifting it horizontally to the left.
Explanation:The graph of y=(x-1)^2-3 transformed to produce the graph of y=1/2(x+4)^2 can be done by manipulating the equation and observing its effect on the graph.
Step 1: Identify the transformation of the parent function y=x^2
Step 2: The transformation y=1/2(x+4)^2 indicates a vertical stretch by a scale factor of 1/2 and a horizontal shift to the left by 4 units.
Therefore, the graph of y=(x-1)^2-3 is transformed to the graph of y=1/2(x+4)^2 by stretching it vertically and shifting it horizontally to the left.
A: The graph is translated left 5 units, compressed vertically by a factor of One-half, and translated up 3 units.
B: The graph is stretched vertically by a factor of One-half, translated left 5 units, and translated up 3 units.
C: The graph is translated left 5 units, compressed horizontally by a factor of One-half, and translated down 3 units.
D: The graph is stretched horizontally by a factor of One-half, translated left 5 units, and translated down 3 units.
Answer:
The graph is stretched horizontally by a factor of 1/2, translated left 5 units and up 3 units.
Step-by-step explanation:
I put both equations into a graphing calculator and compared them. Five units left and 3 up agree with answers A and B. The second equation showed a wider parabolic than the first one, which agrees only with answer C. Therefore, it is my opinion that neither answer is correct. I chose D, but since this is a unit test I can't go in and see if I was correct or not.
The coordinates of the preimage are: A(8,8) B(10,6) C(2,2) We want to reflect over y=−1 first. Our new coordinates are: A′(8, ) B′(10, ) C′(2, ) Now we will reflect over y=−7 and our new coordinates will be: A′′(8, ) B′′(10, ) C′′(2, ) We can also see that −7−(−1)=−6. We know that two reflections is the same as a translation of 2h units. So 2(−6) is a translation of −12 units down.
Answer:
1)A'(8,-10), B'(10,-8), C'(2,-4)
2)A''(8,-4), B''(10,-6), C''(2,-10)
Step-by-step explanation:
Given:
Points A(8,8) B(10,6) C(2,2)
reflection over y=-1
Perpendicular distance between points y-coordinates of points (A, B and C) and y=-1 are 9,7 and 3
after reflections, the perpendicular distance will be 18,14,6 and the points will be at
A'(8,-10), B'(10,-8), C'(2,-4)
Now
Points A(8,-10), B(10,-8), C(2,-4)
reflection over y=−7
Perpendicular distance between points y-coordinates of points (A, B and C) and y=-7 are 3,1 and 3
after reflections, the perpendicular distance will be 6,2,6 and the points will be at
A''(8,-4), B''(10,-6), C''(2,-10) !
Find the sample standard deviation and the population standard deviation of the data set.
52, 19, 44, 49, 37, 46, 52, 36, 54, 13, 14, 17, 34, 16, 51
5 - 1572
- 1519
S - 15.19
- 15.72
Answer:
See below in bold.
Step-by-step explanation:
52, 19, 44, 49, 37, 46, 52, 36, 54, 13, 14, 17, 34, 16, 51
The mean = 35.6
The absolute differences from the mean =
16.4, 16.6, 8.4, 13.4, 1.4, 10.4, 16.4, 0.4, 18.4, 22.6, 21.6, 18.6, 1.6, 19.6, 15.4
The squares of these differences =
268.96, 275.56, 70.56, 179.56, 1.96, 108.16, 268.96, 0.16, 338.56, 510.76, 466.56, 345.96, 2.56, 384.16, 237.16.
The Sum of these squares = 3459.6
Sample Variance 3459.6 / 14 = 247.11 and
Population Variance = 3459.6 / 15 = 230.64
Sample standard deviation = √247.11 = 15.72
Population Standard deviation = √230.64 = 15.19.
Sample standard deviation = √247.11 = 15.72
Population Standard deviation = √230.64 = 15.19.
What is standard deviation?The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed throughout a wider range, a low standard deviation suggests that the values tend to be close to the established mean.
Given
52, 19, 44, 49, 37, 46, 52, 36, 54, 13, 14, 17, 34, 16, 51
The mean = 35.6
The absolute differences from the mean =
16.4, 16.6, 8.4, 13.4, 1.4, 10.4, 16.4, 0.4, 18.4, 22.6, 21.6, 18.6, 1.6, 19.6, 15.4
The squares of these differences =
268.96, 275.56, 70.56, 179.56, 1.96, 108.16, 268.96, 0.16, 338.56, 510.76, 466.56, 345.96, 2.56, 384.16, 237.16.
The Sum of these squares = 3459.6
Sample Variance 3459.6 / 14 = 247.11 and
Population Variance = 3459.6 / 15 = 230.64
Sample standard deviation = √247.11 = 15.72
Population Standard deviation = √230.64 = 15.19.
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Find the equation for the linear function that passes through the points (−5,−4) and (5,2). Answers must use whole numbers and/or fractions, not decimals.
Use the line tool below to plot the two points.
State the slope between the points as a reduced fraction.
State the y-intercept of the linear function.
State the linear function
The equation of the line is y = 0.6*x - 1, the graph is in the image at the end.
How to find the linear equation?
A linear equation in the slope-intercept form can be written as:
y = ax + b
Where a is the slope and b is the y-intercept.
If a line passes through two points (x₁, y₁) and (x₂, y₂), then the slope is given by:
a = (y₂ - y₁)/(x₂ - x₁)
Here we have the points (−5,−4) and (5,2), so the slope is:
a = (2 + 4)/(5 + 5) = 6/10 = 0.6
y = 0.6*x + b
And it passes through (5, 2), then:
2 = 0.6*5 + b
2 - 0.6*5 = b
-1 = b
The equation is:
y = 0.6*x - 1
The graph is in the image below.
Write the equation of a line that passes through the point (-1,5) and has a slope of -7 PLEASE ANSWER
Answer: Y = -7X-2
Step-by-step explanation:
if there are two co-ordinates (x1,y1) and (x2,y2).
If the line is passing through these co-ordinates
Then Slopw of the line = (y2-y1)/(x2-x1)
We have one co-ordinate (-1,5) let it be (X1,Y1)
Let second co-ordinate be (X,Y)
Slope = -7 = (Y-5) / (X-(-1))
-7 = (Y-5)/(X+1)
Y-5 = -7 (x+1)
Y-5 = -7x-7
ADDING 5 ON BOTH SIDES OF THE EQUATION
Y-5+5 = -7X-7+5
Y = -7x-2
[tex]\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{5})~\hspace{10em} slope = m\implies -7 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-5=-7[x-(-1)]\implies y-5=-7(x+1) \\\\\\ y-5=-7x-7\implies y=-7x-2[/tex]
Match the subtraction expressions with their answers.
Answer:
the order is
2,4,1,3
(the 1st answer is the 2nd option)
Answer:
1. (a² - b)/(a³b²)= 1/ab² - 1/a²b
2. (b - a)/a³b³ = 1/a³b² - 1/a²b³
3. (2 - ab²)/(a²b³) = 2/a²b³ - 1/ab
4. (2 - a)/a³b³ = 2/a³b³ - 1/a²b³
Step-by-step explanation:
To do this we'll break down fraction to least term through division.
The solution is as follows
1. (a² - b)/(a³b²)
Splitting the fraction;
a²/a³b² - b/a³b²
= 1/ab² - 1/a²b
2. (b - a)/a³b³
Splitting the fraction.
b/a³b³ - a/a³b³
1/a³b² - 1/a²b³
3. (2 - ab²)/(a²b³)
Splitting the fraction.
2/a²b³ - ab²/a²b³
2/a²b³ - 1/ab
4. (2 - a)/a³b³
Splitting the fraction
2/a³b³ - a/a³b³
2/a³b³ - 1/a²b³
Witch inequality represents the sentence below two or more than a number is less than 14 HELPPPPPPPP
Answer:
its the second choice 2 + n< 14
How do I solve this? (With picture). (Answer is not 94) Thanks!
Answer:
Step-by-step explanation:
The total of the three exams must be at least 93*3 = 279
The total so far is
98 + 87 + x > 279
185 + x > 279 Subtract 185 from both sides.
185-185+x > 279-185
x > 94
So I think you should pick 95
If you need a whole number result, you should pick 97
the speed thing above the chart, Ya pretend that is not there
For this case we have:
a)
[tex]\frac {1} {10}[/tex]to convert as a percentage we have:
[tex]\frac {1} {10}[/tex] * 100% = 10%
b)
[tex]\frac {1} {4}[/tex], if we multiply the numerator and denominator by 25 we have:
[tex]\frac {25} {100}[/tex]
c)
Now we must write a fraction that represents 50%.
We have[tex]\frac {1} {2}[/tex]. If we multiply the numerator and denominator by 50 we have:
[tex]\frac {50} {100}[/tex]
Answer:
10%
[tex]\frac {25} {100}\\\frac {1} {2}[/tex]
Answer:
[tex]a=10\%\\\\b=\frac{25}{100}\\\\c=\frac{1}{2}[/tex]
Step-by-step explanation:
To find "a" you can multiply [tex]\frac{10}{100}[/tex] by 100, then this is:
[tex]a=\frac{10}{100}*100\\\\a=10\%[/tex]
To find "b", you can multiply the numerator and the denominator of the fraction [tex]\frac{1}{4}[/tex] by 25, getting:
[tex]b=\frac{1*25}{4*25}\\\\b=\frac{25}{100}[/tex]
To find "c", you can reduce the fraction [tex]\frac{50}{100}[/tex]. Then you get that this is:
[tex]c=\frac{50}{100}\\\\c=\frac{25}{50}\\\\c=\frac{5}{10}\\\\c=\frac{1}{2}[/tex]
A man earns #6000 every month, he spends 1/5 of his salary on children's education and 5/8 on his aged mother and unemployed sister. How much does he have left?
Answer:
$1050
Step-by-step explanation:
To solve, multiply your two expenses against your $6000 and find the difference.
The man spends 1/5 of his salary on children's education.
To find how much he spends on his children's education in dollars, multiply 1/5 against $6000.
[tex]\frac{1}{5} *6000\\1200[/tex]
The man spends $1200 on children's education.
The man spends 5/8 of his salary on his aged mother and unemployed sister.
Repeat the same process as the first step, this time multiplying 5/8 against $6000.
[tex]\frac{5}{8} *6000\\3750[/tex]
The man spends $3750 on his aged mother and unemployed sister.
Add these two expenses together.
[tex]1200+3750\\4950[/tex]
The man has combined expenses of $4950.
To find how much money he has left, subtract his expenses from his $6000 income.
[tex]6000-4950\\1050[/tex]
The man has $1050 remaining.