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
alexgriva [62]
4 years ago
13

Use addition properties and strategies to find the sum of 13 + 47 + 21 + 79 =

Mathematics
2 answers:
Verdich [7]4 years ago
6 0
(13 + 47)  (21 + 79) =
60 + 100 =
160
Vsevolod [243]4 years ago
6 0
The correct awnser would be 160
You might be interested in
Solve for x.<br> 75°<br> 11x-2
DaniilM [7]

Answer:

x=7

Step-by-step explanation:

6 0
3 years ago
Help with this please
Gwar [14]

Answer:1

Step-by-step explanation:

4 0
3 years ago
How much difference do a couple of weeks make for birth weight? Late-preterm babies are born with 34 to 36 completed weeks of ge
stiks02 [169]

Answer:

a) 0.3277

b) 0.0128

Step-by-step explanation:

We are given the following information in the question:

N(2750, 560).

Mean, μ = 2750

Standard Deviation, σ = 560

We are given that the distribution of distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P (less than 2500 grams)

P(x < 2500)

P( x < 2500) = P( z < \displaystyle\frac{2500 - 2750}{560}) = P(z < -0.4464)

Calculation the value from standard normal z table, we have,  

P(x < 2500) = P(z < -0.4464) = 0.3277 = 32.77\%

b) P ((less than 1500 grams)

P(x < 1500)

P( x < 1500) = P( z < \displaystyle\frac{1500 - 2750}{560}) = P(z < -2.2321)

Calculation the value from standard normal z table, we have,  

P(x < 1500) = P(z < -2.2321) = 0.0128 = 1.28\%

3 0
3 years ago
Find the Arithmetic mean<br> between 6 and 12​
mafiozo [28]

Step-by-step explanation:

Arithmetic mean

A.M. =  \frac{6 + 12}{2}  =  \frac{18}{2}  = 9 \\

6 0
3 years ago
Read 2 more answers
Help plssssss<br>1. (x +3) 2<br>2. 6÷2(1+2)<br>3. 15-1(12÷4+1)<br><br><br><br>​
Lisa [10]
1. 2x+7
2. 9
3.11
I help u there aowonxpwkdowiwvbwicbwocbiwcb
5 0
3 years ago
Other questions:
  • NEED HELP ASAP PLEASE
    15·1 answer
  • PLS HELP ME ASAP Gerald wants to buy a pair of jeans, polyester pants, or cotton pants for his upcoming camping trip. The cost i
    5·2 answers
  • Which of the following is a rational number?<br> Sqr97 sqr98 sqr99 sqr100<br> Sqr=square root
    8·1 answer
  • Jacqueline is taking a quiz in her science class. Each problem has only 1 correct answer. Problem 1 has answer choices A through
    5·1 answer
  • Two sides of a triangle have measures 3 ft. and 6 ft. Also, these sides form a vertex whose angle measures 60 degrees. Calculate
    14·1 answer
  • Someone help I don’t understand
    10·2 answers
  • Factor completely
    6·1 answer
  • HELP PLEEEAAAASSSEEEE!!!!!
    5·1 answer
  • Write the slope-intercept inequality for the graph below. If necessary, use &lt;=
    13·1 answer
  • Help this is math i hate math
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!