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zlopas [31]
3 years ago
7

A technician charges $25 per hour plus $50 for a house call to repair home computers, make a table and a graph to show the cost

for 1, 2, 3 and 4 hours of home computer repair service. Is there a direct variation?
Mathematics
1 answer:
Arturiano [62]3 years ago
5 0
All you have do do is add 50+25 to get the hourly cost then multiply how many hours to get $300 I think
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An isosceles right triangle has sides that are x+2 units long and a hypotenuse that is 8 units long. What is the length of the m
blsea [12.9K]

Answer:

In an isosceles right triangle, the hypotenuse is larger than the sides by a factor of the square root of 2.

So, if the hypotenuse is 8 then the sides are 8 / (sq root of 2) = 5.6568542495

Step-by-step explanation:

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I need help solving this practice question solve for x​
zloy xaker [14]
X = 6
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3 0
3 years ago
-0.2 + 7/10 plz help I’m stuck
Lelechka [254]

(-0.2) + (7÷10) =

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Hope that helps!


6 0
3 years ago
Can you help me with my work
ira [324]

Answer

The vertex is at point (-3, -1)

The axis of symmetry is x = -3

Explanation

We are asked to find the vertex and axis of symmetry of the equation given.

f(x) = x² + 6x + 8

The vertex of a quadratic equation is the point where the graph of the quadratic equation changes from sloping negatively to sloping positively and vice-versa.

The axis of symmetry represents the straight line that divides the graph of the quadratic equation into two mirror parts that are similar to and are mirror images of each other. This axis of symmetry usually passes through the vertex.

To find the vertex, it is usually at the turning point where the first derivative of the quadratic equation is equal to 0.

(df/dx) = 0

f(x) = x² + 6x + 8

(df/dx) = 2x + 6

At the vertex

(df/dx) = 2x + 6 = 0

2x = -6

Divide both sides by 2

(2x/2) = (-6/2)

x = -3

We then insert this into the equation to get the corresponding f(x) value.

f(x) = x² + 6x + 8

f(-3) = (-3)² + 6(-3) + 8

= 9 - 18 + 8

= -1

Hence, the vertex is at point (-3, -1)

And since the axis of symmetry has to pass through the vertex,

The axis of symmetry is x = -3

Hope this Helps!!!

3 0
1 year ago
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