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stepladder [879]
3 years ago
7

How to tell if an ordered pair is a solution to a function

Mathematics
1 answer:
Evgen [1.6K]3 years ago
5 0
A) yes
B) yes
C) no

For each of these, substitute the value of x in the ordered pair into x in the function.

For A, x = -5; -5<2, so the piece of the function we want is f(x) = 3.  In our ordered pair, y=f(x)=3, so yes, it is a solution.

For B, x = 2; 2≤2<6, so the piece of the function we want is f(x) = -x+1.  In our ordered pair, y=f(x)=-1; -2+1=-1, so yes, it is a solution.

For C, x = 8; 8≥6, so the piece of the function we want is f(x) = x.  In our ordered pair, y=f(x)=-7; -7≠8, so no, it is not a solution.
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A beach ball has a diameter of 18 inches. What is the approximate volume of the beach ball?
balu736 [363]
1. To solve this problem, you must aplpy the formula for calculate the volume of a sphere, which is:
 
 V=4/3(πr)
 
 V is the volume of the sphere.
 r is the radius of the sphere.
 
2. You must calculate the radiius. You have that the beach <span>ball has a diameter of 18 inches, then:
 
 r=diametert/2
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4 0
3 years ago
Claudia is reading a book that has 360 pages.She read some of the book last week.She plans to read 46 pages today.When she does,
Ne4ueva [31]

Answer:

242 pages.

Step-by-step explanation:

Let x represent number of pages that Claudia read last week.

We have been given that Claudia is reading a book that has 360 pages. She read some of the book last week. She plans to read 46 pages today. When she does,she will be 4/5 of the way through the book.

The number of total page left after reading 46 pages and x pages last week will be equal to 4/5 of 360.

We can represent this information in an equation as:

x+46=\frac{4}{5}\cdot 360

Let us solve for x.

x+46=4\cdot 72

x+46=288

x+46-46=288-46

x=242

Therefore, Claudia read 242 pages last week.

3 0
3 years ago
Trahn purchased a pair of slacks for $39.95 and a jacket for $64. The sales tax rate on his purchases was 5.5%. Find the total c
Lelu [443]
$64 + #39.95= $103.95
103.95/100*5.5=5.71725
103.95+5.71725=109.66725
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7 0
3 years ago
Please help? , no decimals please,please explain to see picture. ​
dalvyx [7]

Answer:

8x\sqrt{3xy

Step-by-step explanation:

7 0
2 years ago
What is this pls help
lesya692 [45]

The answer is B. 17/4


4 0
3 years ago
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