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
antoniya [11.8K]
4 years ago
6

A road construction crew is resurfacing the highway between point D and point E. The distance between point D and point E is 93

miles of road. The crew has completed 35 miles. If they work at a pace of 2.9 miles per day, how many more days will it take to finish?

Mathematics
2 answers:
vfiekz [6]4 years ago
4 0

Answer: 20 days.


Step-by-step explanation:

Given: A road construction crew is resurfacing the highway between point D and point E.

The  distance between point D and point E =93 miles

Since, the crew has completed 35 miles.

And 90-35=58 miles is the remaining miles of road which crew has to resurface.

If they work at a speed of 2.9 miles per day, then the time it take to finish will be Time=\frac{Distance}{speed}=\frac{58}{2.9}=20\ days

Hence, the crew will finish the work in 20 more days.

guajiro [1.7K]4 years ago
3 0
This is my answer. hope it helps! :)

You might be interested in
Please help and thank you
kap26 [50]

Answer:

D is the answer

Step-by-step explanation:

The explenation is shown on the picture above.

5 0
3 years ago
Which expression uses the commutative property to make it easier to evaluate 1/6 • 5/7 • 18?
Korvikt [17]
It’s A, Because if you do KCF (Keep Change Flip) It would be 1/6 X 7/5.
8 0
3 years ago
A type of long-range radio transmits data across the Atlantic Ocean. The number of errors in the transmission during any given a
Marianna [84]

Answer:

32.33% probability of having at least 3 erros in an hour.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

The mean number of errors is 2 per hour.

This means that \mu = 2

(a) What is the probability of having at least 3 errors in an hour?

Either you have 2 or less errors in an hour, or we have at least 3 errors. The sum of the probabilities of these events is decimal 1. So

P(X \leq 2) + P(X \geq 3) = 1

We want P(X \geq 3)

So

P(X \geq 3) = 1 - P(X \leq 2)

In which

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-2}*(2)^{0}}{(0)!} = 0.1353

P(X = 1) = \frac{e^{-2}*(2)^{1}}{(1)!} = 0.2707

P(X = 2) = \frac{e^{-2}*(2)^{2}}{(2)!} = 0.2707

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.1353 + 0.2707 + 0.2707 = 0.6767

P(X \geq 3) = 1 - P(X \leq 2) = 1 - 0.6767 = 0.3233

32.33% probability of having at least 3 erros in an hour.

6 0
3 years ago
4 to the 3rd power X blank =1 what is the blank?
BaLLatris [955]
If you mean this: 4^{3x} = 1 then x = 0. The property in play here is the following: Any number raised to the "0" power is equal to "1". In this case, we would need to set the exponent of 3x = 0 and solve for x...

If you mean the equation: 4^{3} x = 1 then to solve for x(your blank), simply divide both sides of the equation by 4^{3} :

You would have x = \frac{1}{4^3} this can also be written as 4^{-3}
6 0
4 years ago
Which expression is equivalent to (4+3i)^2+(6-I)^2
zhenek [66]

Answer:

\large\boxed{(4+3i)^2+(6-i)^2=42+12i}

Step-by-step explanation:

(4+3i)^2+(6-i)^2\qquad\text{use}\ (a\pm b)^2=a^2\pm2ab+b^2\\\\=4^2+2(4)(3i)+(3i)^2+6^2-2(6)(i)+i^2\\\\=16+24i+9i^2+36-12i+i^2\qquad i=\sqrt{-1}\to i^2=-1\\\\=16+24i+9(-1)+36-12i+(-1)\\\\=16+24i-9+36-12i-1\qquad\text{combine like terms}\\\\=(16-9+36-1)+(24i-12i)\\\\=42+12i

8 0
4 years ago
Other questions:
  • HELP PLZ ASAP!!!!!!!!!
    13·1 answer
  • Is 5/6 greater than 7/8
    10·1 answer
  • Mia's gross pay is $2954 Her deductions total $724.15
    8·1 answer
  • Find x. Round your answer to the nearest tenth of a degree.<br> 25
    9·2 answers
  • This is my question. i’m terrible at this.
    12·1 answer
  • Write the slope-intercept equation of the line on this graph.
    8·1 answer
  • SOMEONE HELP ME IS DUE TODAY PLZ
    7·1 answer
  • Please help! I'm feeling good today, I'll give you 20 points. Thanks!!
    6·1 answer
  • Question 9 of 10
    15·1 answer
  • 5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!