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
Luba_88 [7]
2 years ago
7

The resting heart rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. U

se the 68-95-99.7 rule to find the percentage of heat rates greater than 55
Mathematics
1 answer:
Liono4ka [1.6K]2 years ago
7 0

Answer:

84%

Step-by-step explanation:

The empirical rule states that 68% values are within 1 standard deviation of mean, i.e,

70

±

15

or from 55 to 85. Since normal distribution is symmetric, we must have (32%) outside this range, and 32/2=16% on the right if this range. Hence below 85 we have (100-16) % = 84%

You might be interested in
Encuentra en cada producto notable el error o errores,enciérralo y escribe el resultado correcto.
lbvjy [14]

Given:

The equation is:

(2x+3y)(2x-3y)=4x^2+6y^2

To find:

The error in the given equation and correct it.

Solution:

We have,

(2x+3y)(2x-3y)=4x^2+6y^2

Taking left-hand side, we get

L.H.S.=(2x+3y)(2x-3y)

L.H.S.=(2x)^2-(3y)^2                 [\because a^2-b^2=(a-b)(a+b)]

L.H.S.=(2)^2(x)^2-(3)^2(y)^2       [\because (ab)^x=a^xb^x]

L.H.S.=4x^2-9y^2

It is not equal to right-hand side 4x^2+6y^2. In the right hand side, there must be a negative sign instead of positive sign.

Therefore, (2x+3y)(2x-3y)=4x^2-6y^2.

8 0
3 years ago
Helpppp plzzzzzzzzzzzzzzz
marin [14]

Answer:

y= 0.2(0.05)^x

5 0
2 years ago
Find the image of (–7, –3) reflected across the x-axis. A. (–7, 3) B. (7, –3) C. (7, 3) D. (–7, –3)
Naddika [18.5K]

Answer:

(-7, -3) (Answer A)

Step-by-step explanation:

We start with the point (-7, -3).  The x-coordinate does not change at all if we reflect this point across the x-axis.  Whereas the y-value of (-7, -3) is -3, we end up with +3 after this reflection.  The desired image is (-7, +3)  (Answer A)

8 0
2 years ago
Write an expression to represent the side length of a square in terms of the square's perimeter,
Likurg_2 [28]

Answer: p/4

Step-by-step explanation: you divide the whole perimeter by 4 because a square has 4 sides

3 0
3 years ago
If f(x)= x2 + 2 and g(x)= 2x-1, find (f ° g)(5).
valentinak56 [21]
I hope this helps you

4 0
3 years ago
Other questions:
  • A half-marathon 13 miles, how many kilometers is that?
    15·2 answers
  • Literal Equations: 5(x + y) = 2x +7y, Solve for x
    7·2 answers
  • PLZ HELP!!! CORRECT ANSWER ONLY PLEASE<br><br> What is the value of x?
    15·1 answer
  • A unicorn daycare center requires there to be 2 supervisors for every 18 unicorns.
    10·2 answers
  • What is the 20th term of the arithmetic sequence<br> 3, 9, 15, 21, 27, ...?
    7·2 answers
  • Express the ratio as a fraction in simplest form 18 oz to 3 cups
    12·2 answers
  • El lunes joe compró 10 tazas de café y 5 donas para su oficina a un costo total de 16.50 el martes compró 5 tazas de café y 10 d
    14·1 answer
  • NEED Help!<br> 111=14g<br> and also 13.65=h + 4.88
    11·1 answer
  • 3. Which two expressions are equivalent for any value of y? *
    12·1 answer
  • Find the cardinal number for the following set A.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!