Answer is B.
We see the center lines are 80 and 85 as stated.
A is wrong because the range of class 2 is less.
C is wrong; class 2 has a minimum of 50
D is wrong; class 2 has a smaller interquartile range, which is the width of the boxes.
-(5 + (-11.3)) + (-4.3)
-(5 - 11.3) + (-4.3)
Distribute -1 into the parenthesis:
-5 + 11.3 + (-4.3)
-5 + 11.3 - 4.3
Add:
6.3 - 4.3
Subtract:
2
Answer:
a1 = 0.5; common ratio = 5
Step-by-step explanation:
Let the common ratio = r
a2 = 2.5
a3 = 2.5r
a4 = 2.5r * r = 2.5r^2
We are told a4 = 62.5, so
2.5r^2 = 62.5
Divide both sides by 2.5
r^2 = 25
r = 5
a2 = a1 * r
a1 = a2/r = 2.5/5 = 0.5
Answer: a1 = 0.5; common ratio = 5
Answer:
the statement that is not supported by the trend in the scatter plot is d) each additional pound adds about one hour of cooking time.
Answer: e = 33
Keep referring to the picture to understand which part of the figure I am talking about.
Step-by-step explanation:
So starting from the top triangle, one of the angles are 34 and the triangle looks like an Isosceles (a triangle that has 2 equal angles and sides). So to find the other 2 angles you have to take away the already given angle from 180 (as all angles in a triangle add up to 180 degrees) and divide it by 2. So- 180 - 34 = 146.
146 ÷ 2 = 73- angle of each of the remaining 2 sides.
The left side of that triangle is extended to be part of the quadrilateral (the four sided figure with angle e). So to now solve the top left angle of the quadrilateral which is connected to the triangle you have to takeaway the angle which is part of the triangle from 180 (Angles on a line add to 180) So-
180 - 73 = 107 - angle for the top left part of the quadrilateral.
To find the 3rd angle on the bottom right, you need to solve the angles of the bottom triangle connected to it. Use the same method I have shown for the top triangle as the triangle look like an Isosceles like the other one -
180 - 30 = 150
150 ÷ 2 = 75- angle of each of the remaining 2 sides
Coming back to finding the 3rd angle, you have to use the line at the bottom where you found one of angles now. Use the same angles on the same line rule used before-
180 - 75 = 105- angle for the bottom right of the quadrilateral
You now have all the angles in the quadrilateral except for e which you will find by adding up all the known angles in the quadrilateral and take it away from 360 (all angles in a quadrilateral add to 360) So-
115 + 107 + 105 = 327
360 - 327 = 33
Therefore e = 33
