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11Alexandr11 [23.1K]
4 years ago
6

Help quickly please!!!

Mathematics
1 answer:
nadezda [96]4 years ago
6 0
The value of the expression is 12
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What is another name for plane Z?
lara31 [8.8K]
Other names for "plane Z" include:
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1) The "z-plane"; 
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2) The "complex plane";
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3) <span>the "domain of the </span>z<span>-transform"
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3 years ago
1.) You need to buy grass seed for a new lawn. The lawn will cover a rectangular plot that is 60 feet by 90 feet. Each ounce of
galina1969 [7]
Part A:
First, we will need to compute the area of the lawn.
We are given that the lawn is a rectangular plot with dimensions 60 ft and 90 ft.
Area of rectangle = length * width
Area of lawn = 60 * 90 = 5400 ft^2
Now, we will compute the number of ounces.
We are given that:
<span>Each ounce of grass seed will cover 120 square feet. Therefore, to know the number of ounces needed to cover 5400 square feet, all we have to do is cross multiplication as follows:
1 ounce ---------> 120 square feet
?? ounce --------> 5400 square feet
Number of ounces needed = (5400*1) / (120) = 45 ounces

Part B:
We know that one ounce is equivalent to 0.0625 pounds.
For the lawn, we need 45 ounces, this means that:
number of pounds needed for the lawn = (45*0.0625) / (1) = 2.8125 pounds
which is approximately 3 pounds.
We know that each bag weighs one pound, therefore:
number of bags needed = 3 bags

Hope this helps :)

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7 0
3 years ago
Read 2 more answers
London has a collection of 260 coins. How many coins represent 25% of her collection?
Sergeu [11.5K]

Answer:

65 coins

Step-by-step explanation:

Set this problem up with a porportion.

\frac{?}{260} \frac{25}{100}

After that, cross multiple and divide.

25 times 260. Then divide by 100. That is then your answer.

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Answer:

y < x and y > 0x + 10

Step-by-step explanation:

y < x and y > 0x + 10

I checked it on Desmos graphing calculator

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3 years ago
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2 years ago
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