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vladimir1956 [14]
3 years ago
13

8. What geographic feature had the greatest influence on the development of

Mathematics
1 answer:
kiruha [24]3 years ago
5 0

Answer:

C

Step-by-step explanation:

River valley provided fertile land and access to water.

Not:

dense forests: hard to navigate, not suitable for ancient civilizations

mountain passes: same reason as above

smooth coastlnes: settlements potentially could be washed away or destroyed. Access to fresh, non-salt water, also was harder than that of settling in river valleys

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The perimeter of a rectangular sheet of metal is 120 feet, and the area is 800 square feet. The length and width of the rectangu
nevsk [136]
800 = l(w)
120 = 2l + 2w
800 = 20(40)
120 = 2(40) + 2(20)
40(6)=240
20(6)=120
P=2(240) + 2(120)
P=480+240
P=720
Answer: Perimeter is 720ft
4 0
3 years ago
Can you solve this using systems of equations for the parallelogram?
GREYUIT [131]

Answer:

no we can't

Step-by-step explanation:

because in the parallelogram the sides should be equal to each other.

ı mean the sides whıch face each other has to be same.

4 0
3 years ago
Solve the exponential equation of 3^x+4=3^9
Pavel [41]
X= 8.99981500..................
6 0
4 years ago
The sale price of apples at a local grocery store is $1.35 for the first pound and $1.10 for each additional pound. Which functi
FromTheMoon [43]

Answer:

  1.)  y = 1.10(x – 1) + 1.35

Step-by-step explanation:

When x pounds of apples are purchased, the number of "additional" pounds is (x-1). The cost of those additional pounds is then added to the cost of the first pound to get ...

  y = 1.10(x -1) +1.35

_____

<em>Comment on the function rule</em>

Personally, I think it is easier to write the rule as y = 1.10x +0.25, considering the first pound to have a $0.25 premium added to its otherwise $1.10 cost. This saves an operation when evaluating the formula for some value of x.

4 0
4 years ago
2. The number of nickels that Christine has is
aev [14]

Answer:

The number of nickels is  15

The number of Dimes is 3

Step-by-step explanation:

Let the number of dimes  Christine has be d

The number of nickels with christine be n

Then the number of Nickels  Christine has will be  

n = 5d ----------------------------------(1)

Now The total value of both dimes and nickels is  = $1.05

This can be represented as

5n +10d = 105  (in cents)

From eq(1)

5(5d) + 10d = 105

25d+10d = 105

35d = 105

d = \frac{105}{35}

d = 3----------------------------------(2)

Substituting (2) in (1), we get

n = 5(3)

n = 15

7 0
3 years ago
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