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ioda
3 years ago
6

A home repair service company earned $990 performing annual inspections. They charged $55 for each inspection. How many inspecti

ons did they perform? 18 19 20 22
Mathematics
2 answers:
OlgaM077 [116]3 years ago
8 0
They performed 18 home inspections
Luni
2 years ago
thanks
7nadin3 [17]3 years ago
7 0

Answer:

I'm 100% sure that the answer is A. 18 (The first option)

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Write the equation of the line in the slope-intercept form.<br> M=4/5, y-intercept (0,1)
netineya [11]

Answer:

y=4/5x+1

Step-by-step explanation:

y=mx+b

  • m is the slope
  • b is the y-intercept

m= 4/5

b=   1   (0,1) y-value

Equation:

           y=4/5x+1

8 0
3 years ago
A single fair die is rolled. What if event A stays the same, i.e., A={2,4} but B={2,4,5}. Event A is independent with event B. T
den301095 [7]

Answer:

False.

Event A and event B are not independent.

Step-by-step explanation:

We know that event A and event B are

A= {2,4} and B= {2,4,5}.

If the following condition satisfies then event A and event B are independent:

P( A and B)= P(A)*P(B).

Now A and B=?

A and B=A∩B= {2,4} ∩ {2,4,5}

A and B=A∩B={2,4}

The single fair die results in 6 outcomes so, the sample space will contain 6 elements.

Thus,

P(A∩B)=2/6=1/3

P(A)=2/6=1/3

P(B)=3/6=1/2

P(A)*P(B)=1/3*1/2=1/6

As,

P(A∩B)≠P(A)*P(B)

1/3≠1/6

Thus, events A and event B are dependent.

5 0
4 years ago
What is the inverse of f(x) = 19/x^3
Gre4nikov [31]
Y = f (x) = 19 / x^3 and g (y) = x 
<span>g is inverse of f </span>

<span>x^3 = 19 / y </span>
<span>x = [ 19 / y ]^(1/3) </span>
<span>g (y) = [ 19 / y ]^(1/3) </span>
<span>g (x) = [ 19 / x ]^(1/3)________inverse function.</span>
6 0
3 years ago
There are two machines available for cutting corks intended for use in wine bottles. The first produces corks with diameters tha
sertanlavr [38]

Answer:

Step-by-step explanation:

Given that there are two machines available for cutting corks intended for use in wine bottles.

X1 = diameter of I machine and X2 = diameter of II machine

X1 is N(3.04, 0.02) and X2 is N(2.9, 3.1)

Acceptable is mean =3 and std dev = 0.1

a) P(2.9

b)  P(2.9

Both are certain events.

6 0
4 years ago
Which line is parallel to 4x + 2y = 0?<br>A. y=2x+3<br>B. -1/2×+3<br>C. y=-2x+3<br>D. y=1/2x+3
egoroff_w [7]
Line A is parallel to line B if line A and B have the same slope and have the same or different y-intercept.

Convert the standard form equation to slope-intercept form as it will be easier to see the slope.

Solve for y.

4x + 2y = 0
2y = -4x <-- Subtract 4x from each side
y = -2x <-- Divide both sides by 2

In the slope-intercept form y = -2x, a y-intercept of 0 is implied

Now find a slope-intercept form equation that has the same slope as y = -2x

So, the answer is C y = -2x + 3.
7 0
3 years ago
Read 2 more answers
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