Given the linear correlation coefficient r and the sample size, n, determine the critical values of r and use you finding to state whether or not the given r represents a significant linear correlations. Use a significance level of 0.05 . r = 0.105, n = 15
A.) Critical values: r= ± 0.514, no significant linear correlation.
B.) Critical values: r = ± 0.514,significant linear correlation.
C.) Critical values: r= ± 0.532, no significant linear correlation.
D.) Critical values: r = 0.514, no significant linear correlation
Answer: A.) Critical values: r= ± 0.514, no significant linear correlation
Step-by-step explanation:
r = 0.105
n = 15
The level of significance for a two-tailed test is 0.05
The degrees of freedom = n - 2 = 15 - 2 = 13
Using the pearson product moment correlation Coefficient table ; The critical value for the correlation Coefficient is ±0.513977
When the correlation coefficient (for a sample of 15 drawn from the same population) is less than ±0.514 (critical value), that means no significant linear correlation exists.
Factor out the greatest common factor of 25x^5-10x^3-15x
Answer:
5x (5x²+3) ( x-1 ) ( x+1 )
Step-by-step explanation:
hope this helps
Line segment ON is perpendicular to line segment ML.
Circle O is shown. Line segments M O, N O, and L O are radii. Lines are drawn to connects points M and N and points N and L to form chords. A line is drawn from point M to point L and intersects line O N at point P. The length of O M is 13 and the length of P N is 8. Angle O P L is a right angle.
What is the length of chord ML?
20 units
24 units
26 units
30 units
Answer:
B. 24 units
Step-by-step explanation:
Each triangle has 13 as the hypotenuse and 8 as a leg length; the lengths carry over.
The longer leg length (MP & PL) is 12 from the pythagorean theorem.
13^2 - 8^2 = 12^2.
MP + ML = PL, so 12 + 12 = 24.
Answer:
24
Step-by-step explanation:
Drag the vertices of the triangle below to draw a right triangle with side lengths 5, 12, and 13.
I hope that helps, coz l've done what i know
Find the slope and the y-intercept of the line.
- 6x + 3y = -9
Write your answers in simplest form.
slope:
E
Undefined
y-intercept:
Answer:
Y-intercept:3
slope: -6
Step-by-step explanation:
because the slope ends with x because that's what will go on the x line of a graph.and the y-intercept ends with y because that's how the number will increase.Hope it helps:)!
The equation -6x + 3y = -9 is rearranged to y = 2x - 3. The slope (m) is 2, and the y-intercept (b) is -3.
To find the slope and y-intercept of the line represented by the equation -6x + 3y = -9, we need to rearrange it into the slope-intercept form (y = mx + b), where m is the slope, and b is the y-intercept.
Step 1: Rearrange the equation:
-6x + 3y = -9
Add 6x to both sides:
3y = 6x - 9
Step 2: Solve for y:
Divide both sides by 3 to isolate y:
y = (6/3)x - (9/3)
y = 2x - 3
Now, the equation is in the slope-intercept form. The slope (m) is the coefficient of x, which is 2, and the y-intercept (b) is the constant term, which is -3.
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dooood is this answer dependent???????????????????
Step-by-step explanation:
Step 1: Determine which option
First let me explain you what dependent means, it means that the next event is affected by the previous event. On the other hand, independent means that all of the events have the same chance of happening and the items don't disappear.
In this question, if a person chooses a donut there are no more of that type and the next event is affect by the previous one. Therefore, this question is dependent.
Answer: Dependent
what is the difference about the trapezoid formula from the triangle formula
Step-by-step explanation:
Do you mean area formula or the perimeter formula?
both formulas are different from the other because a triangle does not have 4 sides. A trapezoid is a quadrilateral.
and the triangle doesn't have "a base" usually
while trapezoids have two, one on the top and one on bottom
What is true regarding two adjacent arcs created by two intersecting diameters?
They always have equal measures.
The difference of their measures is 90°.
The sum of their measures is 180°.
Their measures cannot be equal.
Answer:
The sum of their measures is 180°.
A county manager used a representative sample of two populations in the county to determine the number of pounds of trash thrown away per person per week. The results are shown in the dot plots below. Sample 1: A dot plot titled Sample 1. A number line going from 0.5 to 2.5 in increments of 0.5 is labeled Pounds of Trash. There is 1 dot above 0.5, 3 above 1, 4 above 1.5, 2 above 2, and 2 above 2.5. Sample 2: A dot plot titled Sample 2. A number line going from 0.5 to 2.5 in increments of 0.5 is labeled Pounds of Trash. There are 2 dots above 0.5, 3 above 1, 4 above 1.5, 2 above 2, and 1 above 2.5. The town manager uses the median to show that the average amount of trash thrown away per person per week in each sample is the same. What is the town manager's error?
Answer:
its B
Step-by-step explanation:
Answer:
it is b
Step-by-step explanation:
i took the test
The price of 8 citrons and 9 fragrant wood apples is 145 units. The price of 9 citrons and 8 fragrant wood apples is 144 units. Find the price of a citron and the price of a wood apple.
Answer:
The price of a citron is 8 and the price of a wood apple is 9
Step-by-step explanation:
First of all we make two equations that represents the problem
c = citrons price
w = wood apples price
8c + 9w = 145
9c + 8w = 144
we clear c in the first equation
8c + 9f = 145
8c= 145 - 9w
c = (145 - 9w) /8
c = 145/8 - 9w/8
we replace c by (145/8 - 9w/8) in the second equation and solve
9(145/8 - 9w/8) + 8w = 144
163.125 - 10.125w + 8w = 144
163.125 - 144 = 10.125w - 8w
19.125 = 2.125w
19.125/2.125 = w
9 = f
now we replace w in the first equation
8c + 9w = 145
8c + 9(9) = 145
8c + 81 = 145
8c = 145 - 81
8c = 64
c = 64 / 8
c = 8
The price of a citron is 8 and the price of a wood apple is 9
3. Para encontrarmos o resultado de 300 – 650, podemos: a) efetuar 650 + 300 e manter o sinal do resultado b)efetuar 650 + 300 e inverter o sinal do resultado c) efetuar 650 – 300 e manter o sinal do resultado d) efetuar 650 – 300 e inverter o sinal do resultado
Answer:
To find the result of 300 - 650, we can:
a) do 650 + 300 and keep the result sign
b) do 650 + 300 and invert the result sign
c) do 650 - 300 and keep the result sign
d ) perform 650 - 300 and invert the result sign
Step-by-step explanation:
The correct answer is the letter D .
(perform 650 - 300 and invert the result sign)
300 - 650
300 is more than - 650 on the number line this is because of the negative sign of 650
so we can also write it as 650 - 300 and after getting the require result with put the negative sign to the result, so the result will be -350
Keep the sign of the number with the highest absolute value and subtract from it the lowest absolute value.
- (650 - 300)
Subtract the numbers.
- 350
therefore, the answer is d ) perform 650 - 300 and invert the result sign
PLZ HELP ASAP FIRST ANSWER GETS BRAINLEST WEN THERES TWO PPL WHO ANSWER QUESTION I CHOOSE WHO FIRST 1 WAS GETS IT N FIVE STAR N THANKS 14 POINTS
Answer:
£375
Step-by-step explanation:
Difference will be equal to the difference in VAT
(20% - 17.5%) of 15000
2.5% of 15000
2.5/100 × 15000
375
A jar contains 10 marbles marked with the numbers 1 through 10. You pick a marble at random. What is the probability of not picking the marble marked with the number 3? Enter you’re answer as a simplified fraction.
Answer:
1/10
Step-by-step explanation:
There's 10 marbles that you can pick, and there's only one marble with a 3 on it. So it'd be 1/10
I did the question and the correct answer was 9/10. Not 1/10 like the other answer.
Find the equation of the hyperbola centered at the origin that satisfies the given conditions: x-intercepts = +,-4 and asymptote at y=3/4x
Answer:
The equation of the hyperbola is presented as follows;
[tex]\frac{x^2}{16} - \frac{y^2}{9} =1[/tex]
Step-by-step explanation:
Here we have the standard equation of an hyperbola given as follows;
[tex]\frac{x^2}{a^2} - \frac{y^2}{b^2} =1[/tex]
Where:
a = x intercept
The asymptote is ±(b/a)x
Since the intercept, a is ± 4, the vertices are (-4, 0) and (4, 0)
We are given the asymptote as y = 3/4x, therefore, since the genral form of the asymptote is ±(b/a)x, comparing, we have;
±(b/a)x ≡ 3/4x
We have a = ±4, therefore, b = 3
Hence the equation of the hyperbola is found by putting in the values of a and b in the general form as follows;
[tex]\frac{x^2}{a^2} - \frac{y^2}{b^2} =1 \Rightarrow \frac{x^2}{4^2} - \frac{y^2}{3^2} =1[/tex]
The equation of the hyperbola = x²/16 - y²/9 = 1.
Answer:
B
Step-by-step explanation:
edge
Solve for x. Assume that lines which appear tangent are tangent
Answer: A:12
Step-by-step explanation:
10*x=10x
15*8=120
120/10x=12
The value of x for the given problem is 12.
A straight line segment joining two points on a circle is called a chord. It is, in fact, a segment of a line whose ends lie on the circle. Drawing a line segment between the two ends and passing through the center of the circle is a common method of symbolizing a chord.
The products of the measures of the chord segments are equal when two chords cross over one another.
The following is the product to get the length x:
10 * x = 8 * 15
10x = 120
x = 120/10
x = 12
Therefore, the value of x is 12
Jordan went to the store to buy a bicycle that was advertised for $50. When he arrived, he learned that the model he wanted was sold out, but there was another bicycle available that cost 15% more. How much did the available bicycle cost before taxes? $7.50 $57.50 $65.00 $15.00
Answer: 57.50
Step-by-step explanation:
50*.15=7.50
50+7.5=57.50
B - $57.50
Step-by-step explanation:
To find the cost of the available bicycle before taxes, we need to add another 15% to the original $50. To do that, all you do is multiply $50 by 15%, and then re-add the $50. Work is shown below:
First, change 15% into a decimal:
15% -> 15/100 -> 0.15
Next, lets find the cost of the available bicycle:
x = 50 (0.15)
x = 7.5
Now add the $50 back 7.5:
50 + 7.5 = 75.50
So your answer is B = $57.50
evaluate the expression
Factor the number: 64 = [tex]4^3[/tex]
Apply radical rule: [tex]\sqrt[n]{a^n}[/tex] = a
a [tex]\geq 0[/tex]
[tex]\sqrt[3]{4^3} =4[/tex]
= 4
Which are solutions of the equation (x + 5)(x - 3) = 0? Check all that apply.
O
O
O
x=-15
x=-5
x=-3
x = 2
x=3
x=5
O
O
O
Step-by-step explanation:
Step 1: Find the solutions
[tex](x + 5)(x - 3) = 0[/tex]
(x + 5) = 0
[tex]x + 5 - 5 = 0 - 5[/tex]
[tex]x = -5[/tex]
(x - 3) = 0
[tex]x - 3 + 3 = 0 + 3[/tex]
[tex]x = 3[/tex]
Answer: Options B, E
Which number gives you an irrational product when you multiple it by 0.2
Answer:
the answer is
[tex] \sqrt{5} [/tex]
as you can see I got it right.
A pedestal on which a statue is raised on is a rectangular concrete solid measuring nine
feet long, nine feet wide, and six inches high. How much is the cost of the concrete in the
pedestal, if concrete costs $70 per cubic yard?
Answer:
The cost of the rectangular concrete solid is $104.87Step-by-step explanation:
If the pedestal on which a statue is raised on is a rectangular concrete solid measuring nine feet long, nine feet wide, and six inches high, the volume of the rectangular concrete solid will be expressed as shown;
Volume of the rectangular concrete solid = Length * Width * Height
Given Length = 9ft, Width = 9ft and Height = 6inches
Converting all the units to yards
Given 1ft = 0.333yard
Length = 9 * 0.333 = 2.997yards
Width = 9* 0.333 = 2.997yards
Also given 1inch = 0.0278yard
Height = 6 * 0.0278yards = 0.1668yards
Volume of rectangular concrete solid in cubic yards = 2.997*2.997*0.1668
Volume of rectangular concrete solid in cubic yards = 1.4982cubic yards
If concrete costs $70 per cubic yard, the cost of the rectangular concrete solid will be 1.4982 *$70 = $104.87
James had a peach that was 98 mm in diameter. One day he watered it with a magical solution, and it grew to 188,869 mm
in diameter.
Approximately how many times as large did the diameter of the peach become after James watered it?
To determine how many times larger the peach got, you will divide the new diameter by the original diameter length.
188869/98 = 1927.2
The new diameter is approximately 1927 times longer.
To convert this to scientific notation, move the decimal point from the end (on the right) to between the 1 and the 9 to get 1.927.
Then count the number of decimal places you moved to get there, because this represents how many groups of 10 you adjusted your place value by and then becomes your exponent in scientific notation.
1.927 x 10^3 times is the answer in scientific notation.
Answer:
2*10^3
Step-by-step explanation:
The citizens of the Union were always happy with how the war was going.
True
Or
False
Answer:
False
Step-by-step explanation:
Lemme know if it helped
-3x-5 less than or equal\] to -23
Answer:
Step-by-step explanation:
What's x
PLEASE HELP!!!!!!!!!!!! WILL GIVE CORRECT ANSWER BRAINLIEST!!!!!!!!!
the diagram below shows the rectangle LINT. Find the perimeter of the rectangle LINT. if entering your answer as a decimal, round your final answer to the nearest hundredth
(pls ignore the messy screen)
Answer:22.75
Step-by-step explanation:
2n-3/ 10n^2-17n+3 multiplied by 15n^3-3n^3/ 6n^2-6n
Show the work
Multiplying Rational Expressions
Algebra 1 honors
PLEASE HELP ILL MARK BRAINIEST
Answer:
[tex]\frac{2n^2}{5n^2-6n+1}[/tex]
Step-by-step explanation:
The problem is as follows:
[tex]\frac{2n-3}{10n^2-17n+3} *\frac{15n^3-3n^3}{6n^2-6n}[/tex]
To make this problem simpler to solve, you can simplify the fractions. The first fraction can be simplified by factoring the denominator and cancelling out like factors.
[tex]\frac{2n-3}{10n^2-17n+3} \\\frac{2n-3}{(2n-3)(5n-1)} \\\frac{1}{5n-1}[/tex]
The second fraction can be simplified by cancelling out like factors.
[tex]\frac{15n^3-3n^3}{6n^2-6n}\\\frac{12n^3}{6n^2-6n}\\\frac{2n^2}{n-1}[/tex]
Now, you can multiply the two fractions quite easily
[tex]\frac{1}{5n-1} *\frac{2n^2}{n-1}\\\frac{2n^2}{5n^2-6n+1}[/tex]
A rectangle's length is three times its width, w. Its area is 243 square units. Which equation can be used to find the width of
the rectangle?
w = 3(243)
3w2 = 243
4w = 243
3w2 = 3(243)
Answer:
Step-by-step explanation:
Width = w
Length = 3w
Area = 243 square units
length *width = 243
3w * w = 243
3w² = 243
The equation that can be used to find the width of the rectangle is 3w² = 243.
What is a Rectangle ?A rectangle is a polygon having four sides , The opposite sides are equal to each other and measure of all the angles is 90 degrees.
It is given that
A rectangle's length is three times its width, w.
l = 3w
Its area is 243 square units.
Area of a rectangle is given by
length * breadth
l*w
3w*w = 243
3w² = 243
equation that can be used to find the width of the rectangle is 3w² = 243.
To know more about Rectangle
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What is the slope and x-intercept of y=2x+1?
Answer:
slope: 2
x-intercept = -1/2
Step-by-step explanation:
The equation is in y = mx + b form. m = slope. The slop is equal to 2.
To find the x-intercept set y equal to 0 and solve for x.
0 = 2x + 1
-1 = 2x
x = -1/2
Answer:
slope= 2
x intercept=-0.5 or -1/2
Step-by-step explanation:
y= mx+b
m is the slope, therefore 2 is the slope of the equation.
X-intercept
substitute 0 to y
0=2x + 1
Subtract 1 from both sides
0-1=2x+1-1
-1=2x
Divide both sides by 2
-1/2=2x/2
x=-1/2 or -0.5
7/6d+4/3=1/3 solving for d
Answer:
d = -6/7
Step-by-step explanation:
7/6d+4/3=1/3
Subtract 4/3 from each side
7/6d+4/3-4/3=1/3-4/3
7/6 d = -3/3
Simplify the right side
7/6 d = -1
Multiply each side by 6/7 to isolate d
6/7 *7/6 d = -1 *6/7
d = -6/7
Answer:
D= -3.23077
Step-by-step explanation:
7/6d+4/3=1/3
-4/3 -4/3
7/6d= -1
divide each side by 7/6
d= -3.23077
20. Helen and Carla live in states that have
different sales tax rates. They each bought
a new bicycle. Helen paid $14 for a 5.6%
sales tax on her bicycle. Carla paid $12 for
a 4.8% sales tax on her bicycle. Who paid
more for their bicycle, not including sales
tax?
Answer: Helen paid $250 for the bike
Carla paid $250 for the bike.
They both paid the same amount
Step-by-step explanation:
Final answer:
By calculating the pre-tax prices of the bicycles using the provided sales tax amounts and rates, we determine that both Helen and Carla's bicycles cost $250 before tax, meaning neither paid more for their bicycle excluding the sales tax.
Explanation:
To determine who paid more for their bicycle excluding the sales tax, we need to calculate the pre-tax price of each bicycle using the sales tax amounts given. This requires us to work backwards from the sales tax paid to the original cost of the item.
For Helen, we know that the sales tax was $14, and the rate was 5.6%. We find the pre-tax price by dividing the sales tax paid by the sales tax rate (converted into decimal form):
Pre-tax price for Helen = $14 / 0.056 = $250
For Carla, the sales tax was $12, and the rate was 4.8%. The pre-tax price calculation is similar:
Pre-tax price for Carla = $12 / 0.048 = $250
Since both pre-tax prices are equal, neither Helen nor Carla paid more for their bicycle when we do not include the sales tax.
I need help finding the area of the kite and trapezoid.
Answer:
Kite = 72cm²
Trapezoid = 144 km²
Step-by-step explanation:
Kite:
4×6 = 24cm
8×6 = 48cm
24+48 = 72cm²
Trapezoid:
9×12 = 108 km
12×6 = 72 km
72÷2 = 36 km
36+108 = 144 km²