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qwelly [4]
2 years ago
12

Pick the correct answer. Help me please thanks so much

Mathematics
1 answer:
Elanso [62]2 years ago
7 0
Answer: A

Area of square = l * w
L = 22; W = 22
Area of square = 484

Area of circle = pi * r^2
r = 11
Area of circle = 121 pi

Area of shaded region = Area of square 1 area of circle

So… 484 - 121 pi
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This is how zirconium appears in the periodic table. Rounded to the nearest whole number, how many electrons are in an atom of z
Marina86 [1]
The answer is:

Rounded to the nearest whole number, there are 40 electrons in an atom of Zirconium.

I hope this helps :D 

3 0
4 years ago
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How many minutes does Ali run per calorie burned?<br><br> What is the slope of the graph?
schepotkina [342]

Answer:

Ali runs 1 minutes per 10 calories burned

Slope: 10

Step-by-step explanation:

Slope = y/x = 100/10 = 10

6 0
3 years ago
Which of the points is NOT one of the vertices (s,t) of the shaded region of the set of inequalities shown below?
lorasvet [3.4K]

Answer:

Option D

Step-by-step explanation:

Given: set of inequalities

To find: Points which do not satisfy all the inequalities

Solution:

For point (15,0):

15\leq 30-3(0)=30\\15\geq 15-0=15\\15\leq 25-0=25\\15\geq 0\\0\geq 0

So, (15, 0) satisfies all the inequalities

For point (7.5,7.5):

7.5\leq 30-3(7.5)=30-22.5=7.5\\7.5\geq 15-7.5=7.5\\7.5\leq 25-7.5=17.5\\7.5\geq 0\\7.5\geq 0

So, (7.5, 7.5) satisfies all the inequalities

For point (22.5,2.5):

22.5\leq 30-3(2.5)=30-7.5=22.5\\22.5\geq 15-2.5=12.5\\22.5\leq 25-2.5=22.5\\22.5\geq 0\\2.5\geq 0\\

So, (22.5,2.5) satisfies all the inequalities

For point (7.5 ,0):

Put s = 7.5 and t = 0 in s\geq 15-t

7.5\geq 15-0=15 which is false

So, (s,t)\neq (7.5,0)

7 0
3 years ago
1. A notebook costs $5 more than a folder. Greg purchased 3 notebooks and 2 folders and paid a total cost $30. What is the cost
stiv31 [10]
Answer
Notebook each =$4
Folder each = $9

First we write out what we know
Notebook = n
Folder = f
It says a notebook is +5 than a folder so
f = n +5
It says he bought 3 notebooks and 2 folders for $30
3n + 2f = 30

Because we know from the first equation
f=n+5, we can substitute that into the second equation for f

3n + 2(n+5) = 30
3n + 2n +10 =30. Now Combine like terms
5n +10 =30. Now isolate n by subtracting 10 from both sides
5n = 20. Now isolate n by dividing both sides by 5
n = 4

Now we do the same thing to find f
We substitute the value of n (4) into the equation 3n + 2f =30
3(4) +2f =30
12 +2f =30. Now isolate f by subtracting 12 from both sides
2f = 18. Now isolate f by dividing both sides by 2
f = 9


We check our work by inserting the n and f values we found into one of the equations
n + 5 = f
4 + 5 = 9
9 = 9. It worked it equals so it’s correct
8 0
1 year ago
Andre earns $12 per hour tutoring students after school. If Andre tutored for 24 hours this month, how much money did he earn th
Sophie [7]

Answer:

$288 dollars

Step-by-step explanation:

12 x 24 = 288

8 0
3 years ago
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