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
Bingel [31]
3 years ago
14

A set of data is Normally distributed with a mean of 25 and a standard deviation of 5. What percent of values are between the z-

values –0.4 and 0.6? Round to the nearest whole percent.
Use the z-table to answer the question.

9%
19%
38%
49%
Mathematics
2 answers:
tiny-mole [99]3 years ago
8 0

Answer:

38% is correct

ED2021

guajiro [1.7K]3 years ago
3 0

Answer:

38%

Step-by-step explanation:

You might be interested in
Grace's father gave her a nickel. If she had 64¢ before her father gave her the nickel, how much money did she have after gettin
emmainna [20.7K]
69 cents. 64 + 5 is 69. 
3 0
2 years ago
Read 2 more answers
P(x)=2x^3-11x^2+ax-40 if x+4 is a factor of this polynomial what is the value of a
Vika [28.1K]

Answer:

a = -86.

Step-by-step explanation:

By the Factor Theorem, if x + 4 is a factor then P(-4) = 0, so:

P(-4) = 2(-4)^3 - 11(-4)^2 + a(-4)- 40 = 0

-128 - 176 - 4a - 40 = 0

-4a = 128 +176 + 40

-4a = 344

a = -86.

3 0
3 years ago
In the United States nearly 8 x 10^9 text messages are sent everymonth About how many text messages is this! Find the primefacto
iris [78.8K]
8\times10^9=2^{12}\times5^9

1) Since in the USA 8 x 10 ^9 messages are sent every month, that means that approximately 8 billion messages are sent.

2) We can Prime factorize it:

Note that on the right side we've picked only prime numbers. In this case, 2 and 5.

So we can rewrite 8 x 10^9 as prime factors.

8\times10^9=2^{12}\times5^9

3) Hence, the answer is:

8\times10^9=2^{12}\times5^9

7 0
1 year ago
Help plz plz plz someone
Butoxors [25]

Answer:

C

Step-by-step explanation:

  1. C = 2πr
  2. 2π = 2 × 3.14 = 6.28
  3. 6.28 × 8 = 50.24 feet

I hope this helps!

7 0
3 years ago
Read 2 more answers
Simplify completely x^2+4x-45 / x^2+10x+9
S_A_V [24]

Answer: x - 5/x + 1

Step-by-step explanation:

This algebraic fraction

The task to be performed here is factorisation and simplification. Now going by the question,

x² + 4x - 45/x² + 10x + 9, the factorisation of

x² + 4x - 45 = x² + 9x - 5x - 45

= x(x + 9 ) - 5(x + 9 )

= ( x + 9 )(x - 5 ), don't forget this is the algebraic fraction's Numerator

The second part

x² + 10x + 9 = x² + x + 9x + 9

= x(x + 1) + 9( x + 1 )

= ( x + 9 )( x + 1 ), this is the algebraic denominator.

Now place the second expression which is the denominator under the first expression which is the numerator.

( x + 9 )( x - 5 )/( x + 9 )( x + 1 ).

You can see that, ( x + 9 )/( x + 9 ) divide each other , therefore therr then cancelled and left with

x - 5/x + 1

4 0
3 years ago
Other questions:
  • PLEASE ANSWER ASAP!!!! MUST BE CORRECT FOR POINTS GIVEN!!!!! THE QUESTION IS BELOW IN THE SCREENSHOT!!!!! VERY IMPORTANT!!!!!
    13·1 answer
  • CAN ANYONE HELP ME WITH THIS QUESTION...Plzz
    7·2 answers
  • Please solve quick !!!!!!!!! Please
    6·1 answer
  • How do I solve this?
    15·1 answer
  • Factorise fully 8x^2+6x
    10·2 answers
  • What is the value of x?
    7·1 answer
  • A real estate agent spends $1,500 on advertising for three months to sell an average house. If the house sells in three months,
    8·2 answers
  • given that p=(5,4),q=(7,3),r=(8,6) and s=(4,1) find the component form of the vector pq=3rs a.(-10,-16)b.(-6,4)c.(-2,-6)d.(14,14
    13·1 answer
  • Farmer Ed has 600 meters of fencing
    11·1 answer
  • Express 245 as a product of its prime factors
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!