25, 8, 10, 35, 5, 45, 40, 30, 20 What is the upper quartile of the data set above?A.35
B. 37.5
C. 37
D. 40,
Describe the trend in the scatter plot.
not enough information because the trend line is unclear
positive correlation
no correlation
negative correlation
Answer:
No correlation.
Step-by-step explanation:
A Scatter (XY) Plot has points that show the relationship between two variables.
Scatter plots use a collection of points placed using Cartesian coordinates to show values of two variables. By showing a variable on each axis, it can be detected if there is a relationship or correlation between the two variables.
Several types of correlation can be interpreted through the patterns shown in the scatter diagrams. These are: positive (values increase together), negative (one value decreases as the other increases), null (no correlation).
In the case presented, it can be clearly seen that the variables have no correlation, because the trend is not that the points form a straight line, but that there is too much dispersion.
So, the answer is:
No correlation.
Hope this helps!
Please help with 2 questions thank you.
sin A=0.7245
A=
sin D=0.4567
D=
PLEASE HELPME QUICKLY QUICK
What’s 100-((10x7)+(5x7-5)
Answer:
the answer 60
Step-by-step explanation:
First I did 10x7 which equals 70, Second I did 5x7 which equals 35 and then subtracted 5 to get 30, Third I did 100-70 to get 30 and than I did 30+30 to get 60.
5x2=5x^2 4x2+4x^2
1. What values of a, b, and c would you use in the quadratic formula for the following equation? 5x2+9x=4
2. attachment
3. What are the approximate solutions of 2x2-x+10=0?
4. Solve the equation using the quadric formula. 4x2+3x-10=0
5. Solve the equation using the quadric formula. -x2+27=6x
6. Which method is the best method for solving the equation? 8x2-13x+3=0
7. How many solutions are there for 5x2+7x-4=0?
8. The perimeter of a rectangle is 54 cm. The area of the same rectangle is 176 cm2. What are the dimensions of the rectangle?
1. The equation 5x^2+9x=4, can be rewritten as 5x^2+9x-4=0, where a=5 (the coefficient of the quadratic term), b = 9 (the coefficient of the linear term) and c = -4 (the independent term).
2. No attachment is shown.
3. To use the quadratic formula, the coefficients are: a = 2, b = -1 and c = 10. However, the discriminant, i. e., b^2 -4(a)(c) is negative, therefore, there is no real solution.
4. You have to use the quadratic formula, with a = 4, b = 3 and c = -10, as follows:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4(a)(c)}}{2(a)} [/tex]
[tex]x = \frac{-3 \pm \sqrt{3^2 - 4(4)(-10)}}{2(4)} [/tex]
[tex]x = \frac{-3 \pm \sqrt{169}}{8} [/tex]
[tex]x_1 = \frac{-3 + 13}{8} [/tex]
[tex]x_1 = \frac{5}{4} [/tex]
[tex]x_2 = \frac{-3 - 13}{8} [/tex]
[tex]x_2 = -2 [/tex]
5. Rewriting the formula, so that all the terms are on one side and ordering the polynomial expression, gives: -x2-6x+27=0. Here a = -1, b = -6 and c = 27. Using the quadratic formula gives
[tex]x = \frac{-b \pm \sqrt{b^2 - 4(a)(c)}}{2(a)} [/tex]
[tex]x = \frac{6 \pm \sqrt{6^2 - 4(-1)(27)}}{2(-1)} [/tex]
[tex]x = \frac{6 \pm \sqrt{144}}{-2} [/tex]
[tex]x_1 = \frac{6 + 12}{-2} [/tex]
[tex]x_1 = -9 [/tex]
[tex]x_2 = \frac{6 - 12}{-2} [/tex]
[tex]x_2 = 3 [/tex]
6. When the second grade polynomial has all of its coefficients (a, b and c) different than zero, like this case, the best method for solving the equation is the quadratic formula .
7. When the discriminant is greater than zero, there are two different solutions and when it is equal to zero, it has one double solution.
The discriminant for this case is 7^2 - 4(5)(-4) = 129. So, there are two different solutions .
8. Let's call the sides of the rectangle a and b.
perimeter formula: 2a + 2b = 54 cm (eq. 1)
area formula: (a)(b) = 176 cm2 (eq. 2)
Isolating a in equation 1, gives (units are omitted):
2a + 2b = 54
2a = 54 - 2b
a = 27 - b (eq. 3)
Replacing equation 3 into equation 2, gives (units are omitted):
(a)(b) = 176
(27 - b)(b) = 176
-b^2 + 27b - 176 = 0
Using quadratic formula, we get
[tex]x = \frac{-27 \pm \sqrt{27^2 - 4(-1)(-176)}}{2(-1)} [/tex]
[tex]x = \frac{-27 \pm \sqrt{25}}{-2} [/tex]
[tex]x_1 = \frac{-27 + 5}{-2} [/tex]
[tex]x_1 = 11 [/tex]
[tex]x_2 = \frac{-27 - 5}{-2} [/tex]
[tex]x_2 = 16 [/tex]
Then, there are two possible values for b, 11 cm and 16 cm. Replacing these values into equation 3 gives:
a = 27 - 11 = 16 cm
a = 27 - 16 = 11 cm
Therefore, the two sides are 11 cm and 16 cm long, despite their names.
how can you eliminate fraction from each side of the equation to make finding the solution easier 1/2(x-4)=1/3x+2
sam decides to build a square garden if the area of the other garden is 9x^2 -24x +16 square feet what is the length of one side of the garden
The general form of the equation of a circle is x2 + y2 + 8x + 22y + 37 = 0.
The equation of this circle in standard form is
HELP WILL MEDAL,
(ab - 9)(ab + 8) Please help
You have 20 shirts in your closet. 4 blue, 7 red, 3 green and 6 black. You pick one without looking. What is the probability that you pick a blue or black shirt?
The value of x is
PLEASE ANSWER FAST IM IN THE MIDDLE OF A TEST
Jake is in the stands at a football game with his girlfriend Diane. He decides that he needs to ask Diane a serious question, so he brings her to a quiet lounge in the stadium complex. What type of context has Jake changed?
A. the cultural context
B. the social-psychological context
C. the temporal context,
Jake has shifted the (B) social-psychological context by moving to a quieter, more private space in the stadium to ask Diane a serious question, which changes the norms and atmosphere to match the situation's gravity.
Jake has changed the social-psychological context by moving from the stands to a quiet lounge. The social-psychological dimension of context includes status relationships among participants, roles, norms of the society or group, and the overall atmosphere like friendliness, formality, or gravity of the situation. By choosing to ask Diane a serious question in a quieter, more private environment, Jake is altering the norms and atmosphere to better suit the gravity of the conversation he intends to have, thus changing the social-psychological context.
The hypotenuse of a right triangle is 6 inches. if one of the legs is 2 inches, find the degree measure of each angle
Answer:
(square root) 30
Step-by-step explanation:
I don't know if that's right I'm taking this test right now it might be wrong sorry if its wrong lol
Please help with this one question thanks!
what is the factored form of 3c²+24c+48 ?
The Smiths were just approved for a 25 year mortgage at an 11% fixed rate. If they had not filed bankruptcy in the past, they could have gotten a rate of 7%. If their loan amount is $128,000, how much more per month will the Smiths be paying for their mortgage as a result of their bankruptcy? a. $349.86 b. $125,840.78 c. $904.68 d. $235.09
What is a possible value for the missing term of the Geometric sequence. 50_450
Answer: The missing term of the Geometric sequence can be 150.
Step-by-step explanation:
Let the missing number is x,
Hence, the G.P. will,
50, x, 450
Since, the consecutive element of G.P. are in same ratio,
[tex]\implies \frac{x}{50}= \frac{450}{x}[/tex]
[tex]\implies x^2 = 50\times 450 = 22500[/tex]
[tex]\implies x = 150[/tex]
Thus, the missing term of the Geometric sequence can be 150.
HELP! Two lines intersect at a point, forming ∠1 , ∠2 , ∠3 , and ∠4 .
∠1 and ∠3 are vertical angles.
∠2 and ∠4 are vertical angles.
m∠1=70°
What is the measure of ∠2 ?
The owner of a shop bought a scarf at the wholesale price of $8.00 and marked it up by 300%. What is the selling price?
MEDAL
True or false
The coefficient of x^k y^n-k in the expansion of (x+y)^n equals (n-k / k),
Answer: the answer is FALSE. Just took this on a p e x
Step-by-step explanation:
Please help! How many ways can a cook arrange 7 or 10 spice jars on a spice rack?
A. 720
B. 604,800
C. 5,040
D. 120
How many solutions does the equation sin(4x)=1/2 have on the interval (0,2pi)?
Answer:
2 solutions
Step-by-step explanation:
Given the equation sin(4x)=1/2, to know the total number of solutions that the equation has within the interval (0,2π), we will need to solve for x first.
sin(4x)=1/2
4x = arcsin1/2
4x = 30°
x = 30/4
x1 = 7.5° (This angle lies in the first quadrant)
Since sine is positive in the second quadrant as well and the angle in the second quadrant is (180°-theta) where theta is 7.5°, therefore;
x2 = 180-7.5°
x2 = 172.5°
Therefore 7.5° and 172.5° are the two solutions of x that falls within the range (0,2π)
Hurry please I need the answer right away soo send me math work answers my friend said it's 42? Is it right
What is the square root of 64y^16?
The square root of the given algebraic expression [tex]64y^{16}[/tex] is [tex]\bold{8y^8}[/tex]
What is an algebraic expression?"It is a mathematical statement which consists of numbers, variables and mathematical operations."
For given question,
We have been given an algebraic expression [tex]64y^{16}[/tex]
We need to find the square root of given algebraic expression.
[tex]\Rightarrow \sqrt{ 64y^{16}}\\\\= \sqrt{ 64\times y^{16}} \\\\=\sqrt{64} \times \sqrt{y^{16}} \\\\=8\times (y^{16})^{\frac{1}{2} }\\\\=8\times y^{\frac{16}{2} }\\\\= 8\times y^8[/tex]
Therefore, the square root of the given algebraic expression [tex]64y^{16}[/tex] is [tex]\bold{8y^8}[/tex]
Learn more about the algebraic expression here:
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Divide a six-sided polygon into triangles to find the sum of its interior angles.
A.360 degrees
B. 900 degrees
C. 1080 degrees.
D. 720 degrees
The area of a rectangle is 10r (squared) − 11r − 6. The width is 2r − 3. What is the length?
The length of the rectangle whose area is (10r² − 11r − 6) and the width is (2r−3) is (5r+2).
What is a rectangle?A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but reverse statement may or may not be true.
Area of rectangel = Length × Width
Given that the area of a rectangle is 10r² − 11r − 6, while the width is 2r − 3. Therefore, it can be writen as,
[tex]\text{Area = Length}\times\text{Width}\\\\10r^2 - 11r - 6 = \text{Length} \times (2r - 3)\\\\\text{Length} = \dfrac{10r^2 - 11r - 6}{2r-3}\\\\\text{Length} = 5r+2[/tex]
Hence, the length of the rectangle is (5r+2).
Learn more about Rectangle:
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The main tank at an aquarium is a cylinder with a diameter of 203 ft and a height of 4 ft. What is its approximate volume? Use 3.14 for π. a. 129,400 ft3 b. 79,830 ft3 c. 236,560 ft3 d. 32,366 ft3
Answer: [tex]a.\ 129,400\ ft^3[/tex]
Step-by-step explanation:
The volume of a cylinder is given by:-
[tex]\text{Volume}=\pi r^2h[/tex]
Given: The diameter of cylinder = 203 ft.
Then the radius of the cylinder =[tex]\dfrac{203}{2}[/tex] ft.
The height of the cylinder = 4 ft.
Now, The volume of cylinder :will be -
[tex]\text{Volume}=(3.14)(\dfrac{203}{2})^2(4)=\\\\\Rightarrow\text{Volume}=129,396.26\approx129,400\ ft^3[/tex]
Three-fourths of an inch on a map equals 750 miles. what would one inch equal?
One inch on the map is equal to 1000 miles.
Explanation:To find what one inch would equal on the map, we can set up a proportion using the given information. We know that three-fourths of an inch on the map equals 750 miles. Therefore, the proportion would be: 3/4 inch = 750 miles. To find what one inch would equal, we can cross multiply and solve for the missing value:
3/4 inch * 1 inch = 750 miles * 1 inch
Simplifying, we get: 3/4 = 750 miles * 1 inch
Dividing both sides by 3/4, we get: 1 inch = (750 miles * 1 inch) / (3/4)
Simplifying further, we find that one inch on the map is equal to 1000 miles.