Answer:
20300m^2
Step-by-step explanation:
first try to imagine the shape bisected into a rectangle and a triangle
to find the missing part of the triangle or the bottom side you need to subtract 70m from 140 m
140m-70m=70m this will be the base of your triangle
now you need the side
230m-60m=170
triangle formula base x height/ 2
70m x 170m=a
11900m=a
now the rectangle
base x height=a
60m x140m=a
8400m=a
finally add the two quantities together
8400m+11900m=a
20300m^2=a
Answer:
=5
Step-by-step explanation:
have a nice day, please give me brainliest
Answer:
Estimate of the standard error of the mean = 0.38 lb
Step-by-step explanation:
We are given the following in the question:
Sample mean, 
= 10.87 lb
Sample size, n = 131
Standard deviation, σ = 4.31 lb
We have ti find the estimate of the standard error of the mean.
Formula for standard error:
Putting values, we get,
0.38 lb is the standard error of the mean.
Answer:
Step-by-step explanation:
No. Of miles Yelina plan to run =5.6 miles
No. Of miles Yelina ran today = 3.1 miles
So we have to minus both the no.
=2.5 miles
Thus 2.5 miles left for her to run today
Answer:
b=3 b=0
Step-by-step explanation:
-8|4b-6|+9=-39
Subtract 9 from each side
-8|4b-6|+9-9=-39-9
-8 | 4b-6| = -48
Divide by -8
-8/-8 | 4b-6| = -48/-8
| 4b-6| = 6
When solving the absolute value, there is a positive and a negative solutions
4b-6 = 6 and 4b-6 = -6
Add 6 to each side
4b-6+6 =6+6 4b-6+6 = -6+6
4b =12 4b = 0
Divide by 4
4b/4 =12/4 4b/4 = 0/4
b=3 b=0
