Answer:
$400
Step-by-step explanation:
The area of triangle B is 10.5 square units.
The area of triangle C is 10 square units.
Step-by-step explanation:
Step 1:
The area of a triangle is half the product of its base length and height.
The base is the lower end of the triangle and its length is called base length.
The length from the base to the highest point on the triangle is the height.
Step 2:
For triangle B, the base extends for a length of 7 units and the height is 3 units.
The area of triangle B
So the area of triangle B is 10.5 square units.
Step 3:
For triangle C, the base extends for a length of 5 units and the height is 4 units.
The area of triangle C
So the area of triangle C is 10 square units.
One thousand and seventy five
Answer:
Modification has not reduced the number of accidents.
Step-by-step explanation:
A B C D E F G H
Before modification 5 7 6 4 8 9 8 10
After modification 3 7 7 0 4 6 8 2
Difference -2 0 1 -4 -4 -3 0 -8
Mean of differences
Standard deviation of differences =
Formula of paired t test :
Df = n-1 = 8-1 =7
t critical> t calculated
So, We failed to reject null hypothesis
Hence modification has not reduced the number of accidents.
Answer:
23) x ≥ -140.
24) k > -9.
25) v ≥ 9.
26) m > 16.
Step-by-step explanation:
23) -14 ≤
≥ -14
x ≥ -140
Since it is a ≥ sign, you will put a shaded circle at -140, and the line will stretch infinitely to the right of the circle.
24) -20 < k - 11
k - 11 > -20
k > -9
Since it is a > sign, you will put a non-shaded circle at -9, and the line will stretch infinitely to the right of the circle.
25) -6v ≤ 54
6v ≥ 54
v ≥ 9
Since it is a ≥ sign, you will put a shaded circle at 9, and the line will stretch infinitely to the right of the circle.
26) 8 <
> 8
m > 16
Since it is a > sign, you will put a non-shaded circle at 16, and the line will stretch infinitely to the right of the circle.
<h2>Hope this helps! </h2>