1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
trapecia [35]
3 years ago
9

a telephone technician charges $30 per hour plus a $45 service charge your father's firm hires him to hook up his company's phon

e system find the total charges if it takes the telephone technician 6.5 hours to complete the task
Mathematics
1 answer:
hodyreva [135]3 years ago
6 0

y=mx+b

y=30h + 45

h= 6.5h

y=30(6.5)+45

y=$240

You might be interested in
If your phone Is on 100 percent battery, and you drain 45 percent of it, then charge 22 percent more, how much battery do you ha
baherus [9]
100-45+22= 77
you will have 77 percent of battery on your phone
5 0
3 years ago
Two boys are throwing a baseball back and forth. The ball is 4 ft above the ground when it leaves one child’s hand with an upwar
AleksandrR [38]
The answer to this question is A, 12. Hope this helps.
3 0
3 years ago
Read 2 more answers
(a) A lamp has two bulbs, each of a type with average lifetime 1400 hours. Assuming that we can model the probability of failure
Temka [501]

Answer:

For first lamp ; The resultant probability is 0.703

For both lamps; The resultant probability is 0.3614

Step-by-step explanation:

Let X be the lifetime hours of two bulbs

X∼exp(1/1400)

f(x)=1/1400e−1/1400x

P(X<x)=1−e−1/1400x

X∼exp⁡(1/1400)

f(x)=1/1400 e−1/1400x

P(X<x)=1−e−1/1400x

The probability that both of the lamp bulbs fail within 1700 hours is calculated below,

P(X≤1700)=1−e−1/1400×1700

=1−e−1.21=0.703

The resultant probability is 0.703

Let Y be a lifetime of another lamp two bulbs

Then the Z = X + Y will follow gamma distribution that is,

X+Y=Z∼gamma(2,1/1400)

2λZ∼

X+Y=Z∼gamma(2,1/1400)

2λZ∼χ2α2

The probability that both of the lamp bulbs fail within a total of 1700 hours is calculated below,

P(Z≤1700)=P(1/700Z≤1.67)=

P(χ24≤1.67)=0.3614

The resultant probability is 0.3614

8 0
3 years ago
If 3f(x) - f(1/x) = x^2 , what is the value of f(1/2)?<br>and it's from R-{0} to R obviously.
GarryVolchara [31]

Answer:

0.59375‬

Step-by-step explanation:

3f(x) - f(1/x) = x^2

x = 2:   3f(2) - f(1/2) = 2^2

x = 1/2: 3f(1/2) - f(2) = (1/2)^2

Let a = f(1/2) and b = f(2):

3b - a = 4; 3a - b = 1/4

3b - 4 = a

3(3b-4) - b = 1/4

8b = 12 + 1/4

b = 1.53125‬

3 * 1.53125‬ - 4 = a

a = 0.59375‬

8 0
3 years ago
I need to know the area of the figure
siniylev [52]
The formula is there for area of a trapezoid.

1/2(4)(9 + 13)
2(22)
44
5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me!! If you need a close up please don’t hesitate to ask!
    8·1 answer
  • The volume for a rectangular prism is given by the formula V = l · w · h, where l is the length of the prism, w is the width of
    11·1 answer
  • Rachel has 30 pounds of a mixture of candy that sells for $1.00/lb. If lollipops sell for $0.95/lb and caramel candies sell for
    13·1 answer
  • 3.18x+2.6+0.9x+x=28<br> Solve please, brainliest will be awarded
    14·2 answers
  • Help please...........................
    5·1 answer
  • In the figure below, lines w and z are parallel. What is the value of x
    5·1 answer
  • 9x-y= 29 and 9x + y = -29
    15·2 answers
  • 12. A family spends 1 hours traveling to a theme park, 6 hours at the
    11·2 answers
  • Mr Tong had some money. After giving $1300 to each 5 of his children, he had $450 left. How much money did he have at first
    13·1 answer
  • • Write the equation of the line that passes through the points (-7,0) and(-3,-9). Put your answer in fully reduced point-slope
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!