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
shutvik [7]
3 years ago
5

PLEASE HELP!! I WILL BRAINLIEST

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
7 0

Answer:

81.8%

Step-by-step explanation:

Mean = \mu = 40

Standard deviation = \sigma = 5

Now we are supposed to find out what percent of the numbers fall between 35 and 50

z = \frac{x-\mu}{\sigma}

Substitute the values

z = \frac{x-40}{5}

Now for P(35<x<50)

Substitute x = 35

z = \frac{35-40}{5}

z =-1

Substitute x = 50

z = \frac{50-40}{5}

z =2

So, P(-1<z<2)

P(z<2)-P(z<-1)

=0.9772-0.1587

=0.8185

= 0.818 \times 100

=81.8%

Hence  81.8% percent of the numbers fall between 35 and 50

You might be interested in
Find the perimeter of the triangle. Recall that the perimeter of a figure is the distance around a figure.
Svet_ta [14]

Answer:

1 inch

Step-by-step explanation:

The perimeter is the sum of the lengths of the sides:

Perimeter = 3/23 + 9/23 + 11/23 = (3 + 9 + 11)/23 = 23/23 = 1

8 0
2 years ago
Janson has quarters and dimes in his pocket. he counted 42 coins that added up to $7.50
vlada-n [284]

Answer:

28 quarters and 5 dimes

7(Q)+5(D)

7(4)+5(10)

28Q      50D          Q=quarters  D=dimes

it would be more efficient to do the substitution method bc its faster and easier

7 0
3 years ago
Read 2 more answers
how would you change the sentence into a true statement? some irrational numbers are also rational numbers..... A. All irrationa
Fynjy0 [20]

Irrational numbers cannot be classified as rational numbers. - EXPLANATION - both are different completely, according to as I think, and thus they cannot be inter-related. Irrational like - root2, root3, and all those that cannot be further solved completely. Their decimal representation is neither recurring nor ending e.g. 1.101001000100001000001.... and so on while rational number are consisting of whole numbers, integers, natural numbers, and all the constants and their decimal representation can be non ending but recurring.

5. d. Irrational numbers cannot be classified as rational numbers. - EXPLANATION - out of the options this one's correct. As I above said, all numbers as far as I know can be categorized into unreal and real numbers out of which real numbers consist of irrational and rational numbers while unreal numbers, I don't know as I have not been taught about them yet and neither do you have been, as I think so. All I know is that, as far as I have been taught, unreal number are not connected to real numbers.

6. Every real number is a rational number. - EXPLANATION - As I told you above, real numbers can also be irrational so this is false.

Hope this helps!

8 0
3 years ago
Read 2 more answers
(1) I am playing Guess Who with my son, the goal of which is to guess which card (which person's face)
Fiesta28 [93]

Answer:

Fun? i like the game we play in school with each other.

Step-by-step explanation:

3 0
2 years ago
If a $450 suit is on sale for $250, what is the discount rate (to the nearest percent)?
TiliK225 [7]

Answer:

40 or 45%

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • How to write as equation, the product of 7 and a number
    12·2 answers
  • What is 60 x 473 I'm so confused pls help :(
    9·1 answer
  • Name the triangle congruence postulate that proves the triangles below are congruent.
    5·2 answers
  • Consider the sequence of steps to solve the equation: 2(x − 4) + 6x = 9x − 10 Given ⇒ 2(x − 4) + 6x = 9x − 10 Step 1 ⇒ 2x − 8 +
    7·1 answer
  • What is the slope of the line passing through (-3, 5) and (5, -3)?
    14·2 answers
  • Each year, roughly 10^6 computer programmers each make $10^5. How much money is this all together? Express your answer both as a
    11·1 answer
  • I NEED HELP I FORGOT HOW TO DO THIS AND I NEED HELP <br> -3x + 2&lt;8
    10·1 answer
  • Fewer than is right? my brain isnt working rn
    12·1 answer
  • Can anyone help me get the answer
    9·1 answer
  • The terminal side of an angle, Theta, whose sine value is One-half
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!