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
SOVA2 [1]
3 years ago
14

8) b + 9 +4b First time on here

Mathematics
2 answers:
il63 [147K]3 years ago
4 0

Answer:

9 + 5b

Step-by-step explanation:

Extending answers to be able to send.

MrMuchimi3 years ago
4 0
5b + 9
if its a factor b + 9 + 4b
You might be interested in
I have 0 idea. can someone help me?
aliina [53]

Answer:

2a+8 (square root b)................. third option

6 0
2 years ago
The mean time it takes to walk to the bus stop is 8 minutes (with a standard deviation of 2 minutes) and the mean time it takes
11111nata11111 [884]
(a) Average time to get to school
Average time (minutes) = Summation of the two means = mean time to walk to bus stop + mean time for the bust to get to school = 8+20 = 28 minutes

(b) Standard deviation of the whole trip to school
Standard deviation for the whole trip = Sqrt (Summation of variances)

Variance = Standard deviation ^2
Therefore,
Standard deviation for the whole trip = Sqrt (2^2+4^2) = Sqrt (20) = 4.47 minutes

(c) Probability that it will take more than 30 minutes to get to school
P(x>30) = 1-P(x=30)
Z(x=30) = (mean-30)/SD = (28-30)/4.47 ≈ -0.45
Now, P(x=30) = P(Z=-0.45) = 0.3264
Therefore,
P(X>30) = 1-P(X=30) = 1-0.3264 = 0.6736 = 67.36%

With actual average time to walk to the bus stop being 10 minutes;

(d) Average time to get to school
Actual average time to get to school = 10+20 = 30 minutes

(e) Standard deviation to get to school
Actual standard deviation = Previous standard deviation = 4.47 minutes. This is due to the fact that there are no changes with individual standard deviations.

(f) Probability that it will take more than 30 minutes to get to school
Z(x=30) = (mean - 30)/Sd = (30-30)/4.47 = 0/4.47 = 0

From Z table, P(x=30) = 0.5
And therefore, P(x>30) = 1- P(X=30) = 1- P(Z=0.0) = 1-0.5 = 0.5 = 50%
8 0
3 years ago
dr.hong prescribed 0.019 liter more mdicine than dr.T dr.E prescibed0.02 less than dr> hong who prescribed them most who pres
Aleks [24]
DrH = DrT + 0.019
DrE = DrH - 0.020
DrH is the most and DrE is the least
6 0
3 years ago
What is the relationship between the set of variables when comparing the speed a bus travels and the time it takes to get to sch
Tresset [83]

Answer: sorry

Step-by-step explanation:

5 0
3 years ago
Simplify <br><br><br>pls help ASAP
exis [7]

the bottom is 52y^12

and

the top is 8xy^8*2

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the midpoint of AB given A (-1,4) and B (7,6)
    8·1 answer
  • Find the product. <br>18×8.7=?<br><br>23×56.1=?<br><br>47×5.92=?
    13·2 answers
  • Find the value of x so that the function has the given value.<br><br> j(x)=−4/5x+7; j(x)=−5
    13·1 answer
  • Model and record 2 digit addition
    14·2 answers
  • Solve for v 209=40-v
    7·1 answer
  • Which of these points lies on the circle with the center (2,3) and radius 2?
    7·2 answers
  • An object is launched from a platform. Its height (in meters), xxx seconds after the launch, is modeled by h(x)=-5(x+1)(x-9)h(x)
    5·2 answers
  • Which of the following points represents the center of a circle whose
    11·2 answers
  • Pls help I'll give brainliest !!​
    10·2 answers
  • For the function g(x)= x-9/x+7, solve the following inequality. g(x)&gt;_0
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!