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3 years ago

NEED ASAP !! Will mark the brainliest answer

Mathematics

2 answers:

kykrilka [37]3 years ago

6 0

Answer: 1117.01 square feet

pishuonlain [190]3 years ago

6 0

Answer:

option 1

Step-by-step explanation:

40ft is radius

first lets find the area of the whole circle

A=pi*r^2

A=pi*40^2

A=pi*1600

A=5026.54824574 ft^2

now, lets find what part of a circle is 80 degrees

80/360=2/9

now lets multiply the total area by the fraction to find what area is actually getting sprinkled

A=5026.54824574*(2/9)

A=10053.0964915/9

A=1117.01072128

A= around 1117.01 ft^2

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4a. In a book store, for every 9 books sold, 13 magazines were sold. If they had a 572 sales, how many of the sales were for boo

topjm [15]

Answer:

234 books.

Step-by-step explanation:

You need to set up a proportion. Be careful to note what it looks like and the explanation that follows.

9 books 13 magazines

======= = ===========

x 572 - x Cross multiply

What you want is the number of book sales from the proportion.

However all you have is the ratio of books to magazines. So you have to set up the total sales to magazines, which is a bit awkward. 572 - x is the number of magazine sales.

9*(572 - x) = 13x Remove the brackets on the left.

5148- 9x = 13x Add 9x to both sides.

5148 = 13x + 9x Transpose and add the right.

22x = 5148 Divide by 22

x = 5148/22

x = 234

234 books were sold.

5 0

3 years ago

4x + y2 What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full

lana [24]

4x2=8
3x2=6
and 8 + 6 =14

5 0

4 years ago

Read 2 more answers

A parallelogram has a base of 12 meters and a height of 1.5 meters. What is its area?

rusak2 [61]

Answer:

Step-by-step explanation:

12×1.5=18

its the same formula with rectangle cz if you combine both right angled triangle side its become a rectangle

4 0

3 years ago

From complete sets of playing cards (32 cards) we pulled out one card.

AVprozaik [17]

The probability of pulling an ace is 4 out of 32 or 4/32. There are four aces in a complete set of playing cards. If you need me to simplify, it would be 1 out of 8, or 1/8. I hope this is helpful!

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4 years ago

translate phrases into algebraic expressions, the difference between the cube of a number and the square of the number

Korolek [52]

Answer:

$x^3-x^2.$

Step-by-step explanation:

The word "difference" represents a subtraction. Then the algebraic expression will be of the form a-b.

Now, the difference is between the cube of a number and the square of the number, then let's call the number x. The square of the number is raise to two. Then the square of the number is $x^2$ .

The cube of the number is raise to three. Then the cube of the number is $x^3$ .

So, the difference between the cube of a number and the square of the number (we are talking about the same number in the square and the cube) is $x^3-x^2$ .

3 0

4 years ago