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Lostsunrise [7]
3 years ago
7

Why were farmers able to cut their grain more easily and cheaply after 1834? A new type of grain was developed. The McCormick re

aper was invented. Farmers had a large supply of workers.
Mathematics
1 answer:
Marianna [84]3 years ago
4 0

Answer:

B. The McCormick reaper was invented.

Step-by-step explanation:

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Please answer this correctly
jeka57 [31]

Answer:

169.5 yd²

Step-by-step explanation:

See attachment.

In situations like this, ALWAYS (!) make as sketch.

Divide the areas by adding dotted lines on sensible places, and write in the missing numbers for the correct distances.

The only possible difficult one is the triangle, which is the half of a rectangle. So you are dealing with a series of areas of rectangles. That is really easy if you understand what you are doing.

Total area =

area 1 + area 2 + area 3 + area 4

10*4 + 4*7 + 3*13 + (0.5 * 7*17)

40 + 28 + 42 + 59.5

Total area = 169.5 yd²

6 0
3 years ago
A population of 100 frogs increases at an annual rate of 22%. How many frogs will there be in 5 years? Write an expression to re
gizmo_the_mogwai [7]
Exponential growth of the form:

F=Ar^t

F=100(1.22)^t

F(5)=100(1.22)^5

F(5)=270.27

F(5)=270 to the nearest frog...

....

1.22=r^12

r=1.22^(1/12)

F=100(1.22^(1/12)^t)

F=100(1.22^(t/12))  now it will produce monthly populations...

Say we did the same as before but instead of 5 years you have 60 months...

F(60)=100(1.22^(60/12))

F(60)=270 to the nearest frog... :P 
6 0
3 years ago
. Solve.<br> 2/3 of 3/5 plese help
olasank [31]

Answer:

10/9

Step-by-step explanation:

7 0
2 years ago
Find the 4 angles and the measure of are abd
Svetradugi [14.3K]

Answer:

Angle 1 = 80 (by definition)

Angle 3 = 180 - 80 = 100

Angle 4 + Angle 2 = 90

Also, Angle 2 = 40 (by definition)

So Anglee 4 = 50

6 0
3 years ago
What are the dependent (y) and the independent (x) variables?
Alexandra [31]

Answer:

i donk know and i dont understand the question

Step-by-step explanation:

7 0
2 years ago
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