1. 105
2. 210
3. 315
you just multiply
1 hour = 105
so 105*2=210
210*3=315
got it?
Answer:
use calculating
Step-by-step explanation:
get a calculator and type it
Answer:The last experimental design is the best of the options: 'Compare the average number of
tomatoes that are produced by 10 tomato plants that are grown in clay soil to
the average number of tomatoes that are produced by 10 tomato plants that are
grown in sandy soil''.
The first two experimental designs measure the growth of
tomato plants, which is not necessarily related to the yield of tomatoes. The
third experimental design compares the tomato yield of the two
soils with only one plant grown in each soil. Obviously, the result obtained
from this experiment would be statistically weak. The last experimental design
compares tomato yield and also uses a larger number of plants in each soil
type, so the results obtained would be of slightly greater statistical
significance.
Step-by-step explanation:
The area of the entire circle is pi*(7)^2, or 49pi.
Due to the 90 degree angle, the area of the larger blue sector is
90
------- * 49 pi = 49/4 units^2
360
The area of the smaller blue sector is
48
------- 49 pi = (2/15)(49 pi) = 98 pi/15 units^2
360
The total area of the blue sectors is the sum of 98 pi/15 and 49 pi/4 (units^2):
59 units^2
Answer:
Step-by-step explanation:
An equation in standard form is:
Solving (a):
Given
--- slope
--- y intercept
Required: Determine the equation
An equation has the form:
Substitute values for m and b
Multiply through by 5
Add 3x to both sides
Solving (b):
Given
--- slope
--- y intercept
Required: Determine the equation
An equation has the form:
Substitute values for m and b
Multiply through by 3
Subtract 2x from both sides