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3 years ago

Which graph does not represent a function? No need to explain. Thank you.

Mathematics

1 answer:

pychu [463]3 years ago

7 0

Answer:

The first graph is the only one who is not a function

Step-by-step explanation:

Functions

The condition that a relation between x and y must fulfill to be called a function is that for each value of x, there is one and only one value for y.

That is easy to spot by taking an imaginary vertical line and having is slipped through all of the domain. If the line touches more than once (or never touches) the graph for all the values of x, it's not a function.

Checking on the first graph, we can see it's the only one who has the above-mentioned description. In fact, for a specific value of x, there are infinitely many values of y. The rest of the graphs touches our imaginary line only once per value of x, thus:

The first graph is the only one who is not a function

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ollegr [7]

Data:
r (radius) = 3.5 in
h (height) = 8 in
Adopt: $\pi \approx3.14$
V (volume) = ?
Ink cost per cubic inch = $0.05/in³
Total cost: ?

Calculate the volume of the paint bucket (its formed being cylindrical), we have:
 $V = \pi *r^2*h$
$V = 3.14 *3.5^2*8$
$V = 3.14*12.25*8$
$\boxed{V = 307.72\:in^3}$

What was the total cost of the paint?

price($)___measure(in³)
0.05 ---------- 1
y -------------- 307.72

It is made the rule of three: (directly proportional)

$\frac{0.05}{y} = \frac{1}{307.72}$
multiply cross
$1*y = 0.05*307.72$
$y = 15.386\:\to\:\boxed{\boxed{y\approx\$15}}\end{array}}\qquad\quad\checkmark$

Answer:
the total cost of the paint is $15

7 0

3 years ago

Which value is NOT a solution of the inequality -2x + 5<7?

Ivenika [448]

Answer:1

Step-by-step explanation: Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

-2*x+5-(7)<0

Step by step solution :

STEP

Pulling out like terms

1.1 Pull out like factors :

-2x - 2 = -2 • (x + 1)

Equation at the end of step

STEP

2.1 Divide both sides by -2

Remember to flip the inequality sign:

Solve Basic Inequality :

2.2 Subtract 1 from both sides

x > -1

Inequality Plot :

2.3 Inequality plot for

-2.000 X - 2.000 > 0

One solution was found :

x > -1

5 0

3 years ago

Read 2 more answers

Which best describes what is happening in section b ?

levacccp [35]

D, he is moving at a constant spees

3 0

3 years ago

a crane lifts a pallet of concrete blocks 9 ft from the back of the truck. the truck drives away and the crane lowers the pallet

goblinko [34]

Answer:
The final position is 5 feet below the back of the truck
Step-by-step explanation:
* Lets explain how to solve the problem
- A crane lifts a pallet of concrete blocks 8 feet from the back of
a truck
- The crane lowers the pallet 13 feet after the truck drives away
- Assume that the zero level of the position of the ballet of concrete
blocks is the back of the truck
∵ The crane lifts the pallet of concrete blocks 8 feet from the back
of the truck
- That means it take the pallet from zero to 8
∴ The height of the pallet of concrete blocks is 8 feet over
the starting position
∵ The crane lowers the pallet of concrete blocks 13 feet
- That means the crane lower the pallet from the height 8 and
lift it down 13 feet, so we must to take out from the 8 feet the
13 feet to find the final position of the pallet of concrete blocks
∴ The pallet position is ⇒ 8 - 13 = -5
∴ The position of the pallet of concrete blocks is 5 feet below the
starting position which is the back of the truck
* The final position is 5 feet below the back of the truck

8 0

3 years ago

Please simplify this equation

yawa3891 [41]

Answer:

2a + 8√b

Step-by-step explanation:

√9a² = 3a

√49b = 7√b

and

3a + 7√b - a + √b = 2a + 8√b

4 0

3 years ago