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
romanna [79]
2 years ago
6

-13 +(-4)-(2-10) +8.

Mathematics
1 answer:
Zolol [24]2 years ago
3 0
I believe the answer is -1
You might be interested in
Customers arrive at a grocery store at an average of 2.1 per minute. Assume that the number of arrivals in a minute follows the
Black_prince [1.1K]

Answer:

a)  P(2)=0.270

b) P(X>3)=0.605

c)  P=0.410

Step-by-step explanation:

We know that customers arrive at a grocery store at an average of 2.1 per minute. We use the  Poisson distribution:

\boxed{P(k)=\frac{\lambda^k \cdot e^{-\lambda}}{k!}}

a)  In this case: \lambda=2.1

P(2)=\frac{2.1^2 \cdot e^{-2.1}}{2}\\\\P(2)=0.270

Therefore, the probability is P(2)=0.270.

b)  In this case: \lambda=2\cdot 2.1=4.2

P(X>3)=1-P(X\leq 3)\\\\P(X>3)=1-\sum_{x=0}^3 \frac{4.2^x \cdot e^{-4.2}}{x!}\\\\P(X>3)=1-0.395\\\\P(X>3)=0.605

Therefore, the probability is P(X>3)=0.605.

c)  We know that two customers came in in the first minute. That is why we calculate the probability of at least 5 customers entering the other 2 minutes.

In this case: \lambda=2\cdot 2.1=4.2

P(X\geq 5)=1-P(X

Therefore, the probability is P=0.410.

4 0
3 years ago
What is the probability that the sun will not rise Tomorrow plz explain?
Luba_88 [7]

Answer:

the sun may rise or will not rise , so there are 2 chances

Step-by-step explanation:

so the probability is 1/2=0.5

6 0
3 years ago
Please i’m so confused please helpp
Trava [24]

Answer:

∠5=∠7=∠6=∠8=143°

∠4=∠2=∠1=37°

Step-by-step explanation:

∠4=180-∠6=180-143=37°

7 0
3 years ago
The length of a rectangular playing field is 5m longer than its width. If the perimeter of the field is 150m,find it's width​
Inessa05 [86]

Answer:

35

Step-by-step explanation:

Make equations, l = w+5 and 2l + 2w = 150

Substitute w+5 into 2l + 2w = 150

Simplify to get 4w + 10 = 150

Subtract 10 from both sides to get 4w = 140

Divide both sides by 4 and you get 35 as width

5 0
3 years ago
Read 2 more answers
I need help please I don’t understand stand
vovikov84 [41]

Answer:

c

Step-by-step explanation:

all you gotta do is move the figure up 3 squares, and to the right 3 squares, the way I do this is one point at a time

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following expressions is equal to 3x^2 + 27
    11·2 answers
  • Calculate the volume of the cylinder.Round your answer to the nearest hundredth 6cm height and 2cm width
    5·2 answers
  • How to solve bottom problem.
    11·2 answers
  • Please help me it not hard​
    11·2 answers
  • Use cross multiplication to solve for x
    7·2 answers
  • You paint four walls. Each wall is a rectangle with a length of 20 feet and a height of 12 feet. One gallon of paint covers abou
    13·1 answer
  • For the polynomial f(x) = 3x^3 + 3x^2 - 13x + 12 determine the average rate of change between the two given values for x
    15·1 answer
  • Pleaseee help with this! Giving 60 points!
    13·2 answers
  • If 1=3<br><br> 2=3<br><br> 3=5<br><br> 4=4<br><br> 5=4<br><br> Then, 6=?
    7·2 answers
  • 4 - 1 can be rewritten as what addition expression?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!