2 years ago

For each graph below,state whether it represents a function

Mathematics

1 answer:

Ket [755]2 years ago

4 0

Answer:

1. No

2. No

3. Yes

4. No

5. Yes

6. No

Step-by-step explanation:

If you want to check if a graph is a function, do a vertical line test. For every vertical line, there should be only 1 point on the line if the graph is a function.

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Find the value of x. Round to the nearest degree

ValentinkaMS [17]

Answer:

b. 44°

Step-by-step explanation:

Reference angle = x

Hypotenuse = 21

Adjacent = 15

Apply trigonometric function CAH:

$Cos(x) = \frac{Adj}{Hyp}$

$Cos(x) = \frac{15}{21}$

$x = cos^{-1}(\frac{15}{21})$

x = 44.4153086° ≈ 44° (nearest degree)

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3 years ago

A swimming pool charges $6 for adults and $4 for children. On a particular day, they made $1,326 in admissions. If a total of 28

muminat

X= # of adults
y= # of children

1326= 6x + 4y
289= x + y

We are going to do substitution.

x = 289-y
1326= 6(289-y) + 4y
1326= 1734 -6y + 4y
1326= 1734 + -2y
-408= -2y
204 = y

Since we now have a value for y, we should plug that back into the equation we got the x value from to find the actual numerical value of x.

289= x + y
289= x + 204
85= x

In conclusion, 85 adults and 204 adults went to the swimming pool.

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3 years ago

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Y=-2x-1 what’s the answer for that problem

melisa1 [442]

Answer:

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Step-by-step explanation:

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In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points i

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