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
Evgesh-ka [11]
3 years ago
12

Evaluate the expression below, if a = 3, b = 4, c = 12, and d = 1

Mathematics
1 answer:
Maksim231197 [3]3 years ago
4 0
Alabama hi hi hi hi hi hi hi hi hi hi
You might be interested in
What’s the rule ? plz help
lesya [120]

Answer:

for every 4 inputs there are 4 outputs

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Round to estimate the quotient 715÷11​
SashulF [63]

Answer: 63.63

Step-by-step explanation: Hope this helps. G'day mate!

4 0
3 years ago
Briefly describe scientific notation. how is it useful for writing large and small​ numbers? how is it useful for making​ approx
Alenkasestr [34]
Scientific notation, also called pattern or notation in exponential form, is a way of writing numbers that accommodate values too large (100000000000) or small (0.00000000001) to be written in a conventional manner.

 The use of this notation is based on powers of 104
 Example:
 Big numbers:
 100000000000 = 1 * 10 ^ {11}

 Small numbers:
 0.00000000001 = 1 * 10 ^{-11}

 However, in areas such as physics and chemistry, scientific notation is important to make approximations such as:
 mass of a proton
 mass of an electron and others.
4 0
3 years ago
if the mean of a population is 250 and its standard de- viation is 20, approximately what proportion of obser- vations is in the
Anton [14]

Observed proportions (relative frequencies) from a sample are statistics that can be used to estimate probabilities.

a) Thre is 99.73% proportion of observations is in between 190 and 310 .

b)there is 95.44% proportion of observations is in between 210 and 290 .

We have given that,

Mean of population, μ = 250

standard deviations, σ = 20

we have to calculate proportion of observations in the given interval pair.

a) pair of values are 190 and 310

Using Z-score formula,

Z =( x - μ) /σ

=> Z = (190 - 250) / 20 = -3

Similarly, Z = (310 - 250)/20 = 3

So, -3 < z < 3 and from Z score we found p-value

P(190<X<310) = P( 190-u/sd < X-u/sd < 310-u/sd)

= P( X< 310 ) - P(X<190) = P(Z < 3) - P( Z< -3 )

=0.99865 - 0.00135 0.9973 = 99.73%

b) pair is 210 and 290

Z-Score = (210-250)/20 = -2

Z-score = (290-250)/20 = 2

so, -2 < z < 2

From Z score we found p-value

P(210<X<290) = P(X<290) - P(X<210)

= P(Z< 2) - P(Z< -2)

= 0.9772 - 0.0228 = 0.9544 = 95.44%

So, the required proportion are 99.73% and 95.44% proportion of observations in each given pair.

To learn more about Proportion value , refer:

brainly.com/question/19131394

#SPJ4

Complete question:

If the mean of a population is 250 and its standard deviation is 20, approximately what proportion of observations is in the interval between each pair of values? a 190 and 310 b. 210 and 290.

6 0
1 year ago
What can 8 and 32 both divided by​
julia-pushkina [17]

Answer:

2,4,8

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How should I draw my model that represents 12/6
    5·1 answer
  • Melanie made a circular necklace. She puts beads evenly spaced around the necklace. If the 4th bead is directly across from the
    8·1 answer
  • PLS HALP MEEE FREE BRAINLYNESS
    5·2 answers
  • Can someone help me out???
    15·1 answer
  • X= -4 y= 3 Solve the equation.
    15·2 answers
  • Need help noooooooooooooooooooooooooooooow
    8·1 answer
  • I need help on this one to .
    13·2 answers
  • Question 13 (2 points)
    15·2 answers
  • A vacant lot is being converted into a community garden. The garden and the walkway around its perimeter have an area of 572 ft.
    8·1 answer
  • The
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!